Vertical multi-stage centrifugal pump

Abstract

The utility model discloses a vertical multi-stage centrifugal pump, which relates to the technical field of vertical multi-stage centrifugal pump structures, and aims to solve the problems that the shock absorption mode of the existing multi-stage centrifugal pump is poor in effect and the shock absorption of the multi-stage centrifugal pump cannot be well carried out, and adopts the technical scheme that the vertical multi-stage centrifugal pump comprises a pump shell, and a base is arranged at the lower end of the pump shell; a connecting seat is arranged at the upper end of the pump shell, an exhaust seat is arranged at one end of the connecting seat, a motor is mounted above the connecting seat, a coupler is arranged at the lower end of the motor, a damping base is mounted below the base, a mounting chamber is arranged in the damping base, and a positioning rod is mounted in the mounting chamber. Buffer springs are installed on the outer portions of the positioning rods, dampers are installed at the four corners of the installation chamber, and a buffer protection pad is installed on the upper portion of the damping base. The vertical multi-stage centrifugal pump is well damped, so that the service life of the vertical multi-stage centrifugal pump is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical multistage centrifugal pump structure technical field especially is vertical multistage centrifugal pump. BACKGROUND

[0002] Vertical multistage centrifugal pump is also called CDLF vertical multistage centrifugal pump, adopts standard vertical motor and quick -mounting mechanical seal, replaces very dare to be, the overcurrent part of pump all adopts stainless steel material and is made, can be applicable to light corrosion medium, it has high -efficient energy -conserving, reliable quality, practical range wide etc.

[0003] Through the retrieval, the vertical multistate centrifugal pump of authorization announcement No. CN221569005U is disclosed, including pump shell and installation support, the installation support includes horizontal mounting frame, vertical mounting frame, shock support rod, base and conical shock pad, horizontal mounting frame is fixedly connected with pump shell, the upper and lower ends of shock support rod are fixedly connected horizontal mounting frame and base respectively, shock support rod's side is fixedly connected with vertical mounting frame, and the side surface of vertical mounting frame and the bottom surface of base are all fixedly installed with a plurality of conical shock pads, and the bottom of conical shock pad is equipped with fixed flange. The vertical multistate centrifugal pump of the utility model can alleviate the vibration of pump shell in vertical direction through the combination of shock support rod, base and conical shock pad, and the combination of shock support rod, vertical mounting frame and conical shock pad can alleviate the vibration of pump shell in horizontal direction, can reduce the noise generated due to vibration when vertical multistate centrifugal pump works as a whole, thereby improving the working performance of centrifugal pump.

[0004] But the effect of the existing multistage centrifugal pump damping mode is not good, and the multistage centrifugal pump cannot be well damped, so there is an urgent need for a vertical multistage centrifugal pump to solve these problems. Utility model content

[0005] The utility model aims at providing a vertical multistage centrifugal pump to solve the problem of poor effect of the existing multistage centrifugal pump damping mode and poor damping of the multistage centrifugal pump.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a vertical multistage centrifugal pump, including the pump shell, the lower end of pump shell is provided with the base, the periphery of pump shell is installed with the fastener, the upper end of pump shell is provided with the connecting seat, one end of connecting seat is provided with the exhaust seat, the upper of connecting seat is installed with the motor, the lower end of motor is provided with the shaft coupling, the lower of base is installed with the shock absorbing base, the inside of shock absorbing base is provided with the mounting chamber, the inside of mounting chamber is installed with the positioning rod, the outside of positioning rod is installed with the buffer spring, the four corners of mounting chamber are all installed with the damper, the upper of shock absorbing base is installed with the buffer protection pad.

[0008] Through adopting the technical scheme, the shock absorption effect of the vertical multistage centrifugal pump is better, so that the vertical multistage centrifugal pump can be conveniently protected.

[0009] Further, one end of the pump shell is provided with a water inlet seat, the water inlet seat is an integral structure with the pump shell, the other end of the pump shell is provided with a water outlet seat, the water outlet seat is an integral structure with the pump shell.

[0010] Through the above technical scheme, the structure between the pump shell and the water inlet seat and the water outlet seat is more firm, so that the pump shell, the water inlet seat and the water outlet seat are prevented from separating.

[0011] Further, the outer periphery of the shaft coupling is provided with a protective plate, and the protective plate is an integral structure with the shaft coupling.

[0012] Through the above technical scheme, the structure between the protective plate and the shaft coupling is more firm, and the shaft coupling can be well protected by the protective plate, so that damage of the shaft coupling due to collision can be well prevented.

[0013] Further, the positioning rod is provided with a plurality of positioning rods, and the plurality of positioning rods are uniformly distributed in the mounting chamber.

[0014] Through the above technical scheme, the positioning rod can be positioned and installed between the base and the shock absorbing base, so that the shock absorbing base does not sway to both sides when vibrating, thereby affecting the use effect of the vertical multistage centrifugal pump.

[0015] Further, the inside of the lower end of the base is provided with a positioning groove, the positioning groove is correspondingly provided with the positioning rod, and one end of the positioning rod is located in the inside of the positioning groove.

[0016] Through the above technical scheme, the positioning groove of the base can be moved along the direction of the positioning rod, so that the vertical multistage centrifugal pump does not sway to both sides when shock absorbing, thereby affecting the use effect of the vertical multistage centrifugal pump.

[0017] Further, the damper is provided with four, both ends of the damper are provided with fixed feet, the upper end fixed foot is fixedly connected with the base through a fixing screw, and the lower end fixed foot is fixedly connected with the mounting chamber through a fixing screw.

[0018] By adopting the above technical scheme, the damper can be conveniently installed and fixed, and the reciprocating movement of the damper during buffering can be avoided, so that the use effect of the vertical multistage centrifugal pump is affected.

[0019] Further, the buffer protection pad and the damping base are connected through adhesive connection.

[0020] By adopting the above technical scheme, the buffer protection pad and the damping base can be conveniently installed and fixed, and the damping effect is further improved.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] (1) the vertical multistage centrifugal pump of the utility model can produce vibration during work, the buffer spring arranged outside the positioning rod can be well buffered during vibration, the positioning rod is limited to move along the positioning groove arranged at the lower end of the base, and the buffer spring can not reciprocate during damping, so that the use effect of the vertical multistage centrifugal pump is affected.

[0023] (2) the damping base of the utility model is provided with a buffer protection pad at the upper end, the buffer protection pad is contacted by the base during downward movement during damping, so that the damping effect of the vertical multistage centrifugal pump is further improved, and the service life of the vertical multistage centrifugal pump is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall front view of the utility model;

[0025] Figure 2 It is the overall sectional view of the utility model;

[0026] Figure 3 It is the buffer protection pad structure diagram of the utility model;

[0027] Figure 4 It is the buffer protection pad structure diagram of the utility model; Figure 2 It is the A area local enlarged view of the utility model.

[0028] In the figure: 1, pump shell; 2, base; 201, positioning groove; 3, water inlet seat; 4, water outlet seat; 5, connecting seat; 501, exhaust seat; 6, fastener; 7, motor; 8, shaft coupling; 9, protective plate; 10, shock-absorbing base; 1001, mounting chamber; 11, positioning rod; 12, damper; 1201, fixing foot; 13, fixing screw; 14, buffer protection pad; 15, buffer spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0030] Please refer to Figures 1-4 The utility model provides an embodiment: a vertical multistage centrifugal pump, including pump shell 1, the lower end of pump shell 1 is provided with base 2, and the periphery of pump shell 1 is installed with fastener 6, the upper end of pump shell 1 is provided with connecting seat 5, one end of connecting seat 5 is provided with exhaust seat 501, and the upper portion of connecting seat 5 is installed with motor 7, the lower end of motor 7 is provided with shaft coupling 8, the periphery of the outside of shaft coupling 8 is provided with protective plate 9, and protective plate 9 is an integral structure with shaft coupling 8, the lower portion of base 2 is installed with shock-absorbing base 10, the inside of shock-absorbing base 10 is provided with mounting chamber 1001, the inside of mounting chamber 1001 is installed with positioning rod 11, the outside of positioning rod 11 is installed with buffer spring 15, the four corners of mounting chamber 1001 are all installed with damper 12, the upper portion of shock-absorbing base 10 is installed with buffer protection pad 14, one end of pump shell 1 is provided with water inlet seat 3, and water inlet seat 3 is an integral structure with pump shell 1, the other end of pump shell 1 is provided with water outlet seat 4, and water outlet seat 4 is an integral structure with pump shell 1, wherein the installation effect of vertical multistage centrifugal pump can be improved through fastener 6, shaft coupling 8 can be well protected through protective plate 9, and the shock-absorbing effect of vertical multistage centrifugal pump can be improved through shock-absorbing base 10, and it needs to be explained that, in order to save length, highlight the innovative elements of the patent, such as the working principle of how vertical multistage centrifugal pump works, it is not described in the patent.

[0031] Please refer to Figure 2 And Figure 4The positioning rod 11 is provided with a plurality of positioning rods 11 which are evenly distributed inside the mounting chamber 1001, the inside of the lower end of the base 2 is provided with a positioning groove 201, the positioning groove 201 is provided in correspondence with the positioning rod 11, one end of the positioning rod 11 is located inside the positioning groove 201, the damper 12 is provided with four, both ends of the damper 12 are provided with a fixed foot 1201, the upper end fixed foot 1201 is fixedly connected between the base 2 through the fixed screw 13, the lower end fixed foot 1201 is fixedly connected between the mounting chamber 1001 through the fixed screw 13, wherein the positioning rod 11 can make the vertical multi-stage centrifugal pump longitudinally move when damping, and the vertical multi-stage centrifugal pump will not be tilted, and the damper 12 can make the vertical multi-stage centrifugal pump not reciprocate during damping, thereby affecting the use effect of the vertical multi-stage centrifugal pump.

[0032] Working principle: when in use, the vertical multi-stage centrifugal pump will vibrate when working, the buffer spring 15 provided outside the positioning rod 11 can well buffer when vibrating, so that the positioning rod 11 moves in position along the positioning groove 201 provided at the lower end of the base 2, the damper 12 is installed, so that the buffer spring 15 will not reciprocate when damping, thereby affecting the use effect of the vertical multi-stage centrifugal pump, and the upper end of the damping base 10 is provided with a buffer protection pad 14, which is contacted by the base 2 when moving downward during damping, which can further improve the damping effect of the vertical multi-stage centrifugal pump, thereby prolonging the service life of the vertical multi-stage centrifugal pump.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A vertical multi-stage centrifugal pump comprising a pump casing (1), characterized in that: The lower end of the pump shell (1) is provided with a base (2), the periphery of the pump shell (1) is provided with a fastener (6), the upper end of the pump shell (1) is provided with a connecting seat (5), one end of the connecting seat (5) is provided with an exhaust seat (501), the upper side of the connecting seat (5) is provided with a motor (7), the lower end of the motor (7) is provided with a shaft coupling (8), the lower side of the base (2) is provided with a damping base (10), the inside of the damping base (10) is provided with a mounting chamber (1001), the inside of the mounting chamber (1001) is provided with a positioning rod (11), the outside of the positioning rod (11) is provided with a buffer spring (15), the four corners of the mounting chamber (1001) are provided with a damper (12), the upper side of the damping base (10) is provided with a buffer protection pad (14).

2. A vertical multi-stage centrifugal pump according to claim 1, characterized in that: One end of the pump shell (1) is provided with a water inlet seat (3), the water inlet seat (3) and the pump shell (1) are an integral structure, the other end of the pump shell (1) is provided with a water outlet seat (4), the water outlet seat (4) and the pump shell (1) are an integral structure.

3. A vertical multi-stage centrifugal pump according to claim 2, characterized in that: The outside of the shaft coupling (8) is provided with a protective plate (9), and the protective plate (9) and the shaft coupling (8) are an integral structure.

4. A vertical multi-stage centrifugal pump according to claim 3, characterized in that: The positioning rod (11) is provided with a plurality of positioning rods (11), and the plurality of positioning rods (11) are uniformly distributed in the mounting chamber (1001).

5. A vertical multi-stage centrifugal pump according to claim 4, characterized in that: The inside of the lower end of the base (2) is provided with a positioning groove (201), the positioning groove (201) is provided correspondingly with the positioning rod (11), and one end of the positioning rod (11) is located in the inside of the positioning groove (201).

6. A vertical multi-stage centrifugal pump according to claim 5, characterized in that: The damper (12) is provided with four dampers (12), and the two ends of the damper (12) are provided with a fixed foot (1201), the upper end of the fixed foot (1201) and the base (2) are fixedly connected through the fixed screw (13), and the lower end of the fixed foot (1201) and the mounting chamber (1001) are fixedly connected through the fixed screw (13).

7. A vertical multi-stage centrifugal pump according to claim 6, characterized in that: The buffer protection pad (14) and the damping base (10) are connected through adhesive connection.

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