CN215486613U - Stainless steel vertical multistage centrifugal pump with high sealing performance - Google Patents

Abstract

The utility model discloses a high-tightness stainless steel vertical multistage centrifugal pump, which comprises a motor and is characterized in that: the motor is characterized in that a motor base is fixedly connected to the lower end face of the motor through bolts, an outer barrel is fixed to the lower end face of the motor base, the outer barrel is fixedly connected to a pump body through drawing bolts, a junction box is arranged outside the motor, the motor is fixedly connected to a pump shaft through an output shaft in a matched mode, the motor base is communicated with an inner cavity of the outer barrel through a pump shaft, an impeller is arranged outside the pump shaft, a sealing assembly is arranged at the bottom of the inner cavity of the motor base and at the communication position of the outer barrel, and a base is fixed to the lower end face of the pump body. The utility model relates to the technical field of stainless steel vertical multistage centrifugal pumps. This high leakproofness's stainless steel vertical multistage centrifugal pump has solved the sealed bearing leakproofness of current stainless steel vertical multistage centrifugal pump secret usefulness poor, and life is short, can not fix the problem to ground.

Description

Stainless steel vertical multistage centrifugal pump with high sealing performance

Technical Field

The utility model relates to the technical field of stainless steel vertical multistage centrifugal pumps, in particular to a high-sealing stainless steel vertical multistage centrifugal pump.

Background

Vertical multistage centrifuge, it is the equipment that utilizes centrifugal force to increase fluid pressure, generally rotate at a high speed through the motor, and then drive the pump shaft, set up the impeller on the pump shaft, the impeller takes place high-speed rotatory, it is rotatory to drive fluid at rotatory in-process, fluid takes place centrifugal motion, fly away at a high speed promptly, improve fluid pressure, and the motor is because electrical equipment needs isolated fluid, prevent that fluid from causing the damage to the motor, and be provided with the impeller on the pump shaft, the impeller must be with fluid contact, so need do sealing process in the position of pump shaft.

However, the sealing ring is generally adopted for sealing the existing multistage centrifugal pump, and the sealing structure has poor sealing performance, and along with the high-speed rotation of the motor, even sometimes the frequency conversion switching of the motor, the sealing ring is difficult to timely change along with the motor, the sealing ring can be damaged, the sealing performance is poor, fluid can flow into the motor part, the damage of the motor is caused, and the use of the centrifugal pump is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high-sealing stainless steel vertical multistage centrifugal pump, which solves the problems that the sealing bearing for sealing of the conventional stainless steel vertical multistage centrifugal pump is poor in sealing performance, short in service life and incapable of fixing the ground.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a vertical multistage centrifugal pump of stainless steel of high leakproofness, includes the motor, its characterized in that: the motor is characterized in that a motor base is fixedly connected to the lower end face of the motor through bolts, an outer barrel is fixed to the lower end face of the motor base, the outer barrel is fixedly connected to a pump body through drawing bolts, a junction box is arranged outside the motor, the motor is fixedly connected to a pump shaft through an output shaft in a matched mode, the motor base is communicated with an inner cavity of the outer barrel through a pump shaft, an impeller is arranged outside the pump shaft, a sealing assembly is arranged at the bottom of the inner cavity of the motor base and at the communication position of the outer barrel, and a base is fixed to the lower end face of the pump body.

Preferably, the sealing assembly comprises a sealing bearing, a fixing lantern ring and a threaded hole, the fixing lantern ring is fixed outside the sealing bearing, and the threaded hole is formed in the upper end of the fixing lantern ring.

Preferably, the base up end is provided with the mounting hole, the base adopts the antiskid rubber material to make.

Preferably, the sealing bearing is made of double bearings, and a sealing gasket is fixed in the middle of an inner cavity of an outer ring of the sealing bearing.

Preferably, the left end and the right end of the pump body are provided with a water inlet and a water outlet.

(III) advantageous effects

The utility model provides a stainless steel vertical multistage centrifugal pump with high sealing performance. The method has the following beneficial effects:

(1) in the high-sealing stainless steel vertical multistage centrifugal pump, personnel install the sealing bearing and the pump shaft, then the fixed lantern ring is matched with the threaded hole through the bolt to be installed and fixed with the bottom of the inner cavity of the motor base, thereby solving the trouble that the sealing bearing of the existing vertical multistage centrifugal pump is clamped and fixed by the outer shaft and the motor base, which causes unstable fixation when the vertical multistage centrifugal pump works, on some uneven ground or placing racks, people use external bolts to install and fix the base and the ground through the installation holes, thereby solving the trouble that the existing vertical multi-stage centrifugal pump can not be fixedly installed, and the base is made of anti-skid rubber material, the vertical multistage centrifugal pump can be well erected on flat ground or a placing rack, and the trouble that the vertical multistage centrifugal pump moves and topples over due to vibration of the inner impeller when the vertical multistage centrifugal pump works is avoided.

(2) The stainless steel vertical multistage centrifugal pump with high sealing performance is characterized in that a sealing bearing and a pump shaft are installed, then a fixed lantern ring is installed and fixed with the bottom of an inner cavity of a motor base through a bolt matched threaded hole, a person turns on a motor, and the motor drives the pump shaft and an impeller to rotate through an output shaft, the sealing bearing is made of double bearings, a sealing gasket is fixed in the middle of an inner cavity of an outer ring of the sealing bearing, so that the sealing effect of the sealing bearing can be further improved, two layers of balls are arranged in the inner cavity of the sealing bearing, the service life of the sealing bearing can be greatly prolonged, the trouble that the sealing performance of the sealing bearing for sealing of the existing stainless steel vertical multistage centrifugal pump is poor and the service life is short is solved, the motor drives the pump shaft to generate suction through the output shaft by turning on the person, a water inlet is supplied with fluid to flow in, and then the fluid flows out from a water outlet after being pressurized by the impeller, therefore, the purpose of pressurizing the fluid of the vertical multistage centrifugal pump is achieved, and the trouble that the conventional stainless steel vertical multistage centrifugal pump cannot pressurize the fluid is solved.

Drawings

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

FIG. 2 is a schematic view of a half-section structure of a motor base according to the present invention;

FIG. 3 is an enlarged view of the area A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the seal assembly mounting structure of the present invention;

FIG. 5 is a schematic view of a seal assembly in half section according to the present invention.

In the figure: 1. a motor; 2. a motor base; 3. a junction box; 4. a pump shaft; 5. an impeller; 6. a seal assembly; 7. an outer cylinder; 8. a water inlet; 9. a water outlet; 10. a pump body; 11. drawing the bolt closer; 12. a base; 13. a coupling; 14. a bearing; 15. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the first embodiment is as follows:

the utility model provides a vertical multistage centrifugal pump of stainless steel of high leakproofness, includes motor 1, its characterized in that: the lower end face of a motor 1 is fixedly connected with a motor base 2 through bolts, the lower end face of the motor base 2 is fixedly provided with an outer barrel 7, the outer barrel 7 is fixedly connected with a pump body 10 through a drawing bolt 11, the outer part of the motor 1 is provided with a junction box 3, the motor 1 is fixedly connected with a pump shaft 4 through an output shaft matching coupler 13, the motor base 2 is communicated with the inner cavity of the outer barrel 7 through the pump shaft 4, the outer part of the pump shaft 4 is provided with an impeller 5, the communication part between the bottom of the inner cavity of the motor base 2 and the outer barrel 7 is provided with a sealing component 6, the lower end face of the pump body 10 is fixedly provided with a base 12, the sealing component 6 comprises a sealing bearing 601, a fixed lantern ring 602 and a threaded hole 603, the outer part of the sealing bearing 601 is fixedly provided with a fixed lantern ring 602, the upper end of the fixed lantern ring 602 is provided with the threaded hole 603, personnel can mount the sealing bearing 601 and the pump shaft 4, and then mount and fix the fixed lantern ring 602 with the bottom of the inner cavity of the motor base 2 through the bolt matching threaded hole 603, therefore, the sealing bearing of the conventional vertical multistage centrifugal pump is clamped and fixed by the outer shaft and the motor base, and the trouble of unstable fixation easily occurs during the operation of the vertical multistage centrifugal pump is solved.

Example two:

the difference between this embodiment and the first embodiment is: the sealing bearing 601 is made of double bearings, a sealing gasket 604 is fixed in the middle of an inner cavity of an outer ring of the sealing bearing 601, the sealing bearing 601 and the pump shaft 4 are installed, then a fixing sleeve ring 602 is installed and fixed with the bottom of an inner cavity of the motor base 2 through a bolt matching threaded hole 603, after a person opens the motor 1, the motor 1 drives the pump shaft 4 and the impeller 5 to rotate through an output shaft, because the sealing bearing 601 is made of double bearings, and the sealing gasket 604 is fixed in the middle of the inner cavity of the outer ring of the sealing bearing 601, the sealing effect of the sealing bearing 601 can be further improved, and two layers of balls are arranged in the inner cavity of the sealing bearing 601, the service life of the sealing bearing 601 can be greatly prolonged, the trouble that the sealing performance of the sealing bearing for the sealing of the existing stainless steel vertical multistage centrifugal pump is poor and the service life is short is solved, and a water inlet 8 and a water outlet 9 are arranged at the left end and the right end of the pump body 10, open motor 1 through the personnel, make motor 1 produce suction through output shaft transmission pump shaft 4, make water inlet 8 supply the fluid inflow, then flow out by the delivery port after impeller 5 carries out the pressure boost, thereby the purpose of the fluid pressure boost of vertical multistage centrifugal pump has been realized, and solved the trouble that current stainless steel vertical multistage centrifugal pump can't realize carrying out the pressure boost to the fluid, base 12 up end is provided with mounting hole 15, base 12 adopts the antiskid rubber material to make, on some uneven ground or rack, personnel utilize outside bolt to make base 12 and ground install fixedly through mounting hole 15, thereby the trouble that current vertical multistage centrifugal pump can't carry out fixed mounting has been solved, and base 12 adopts the antiskid rubber material to make, can be fine messenger vertical multistage centrifugal pump on some flat ground or rack, prevent that vertical multistage centrifugal pump from standing up because inside impeller 5 motion appears shaking and leads to vertical multistage centrifugal pump at the during operation The trouble of moving and dumping.

When the vertical multi-stage centrifugal pump works, firstly, on some uneven ground or a placing rack, a person utilizes external bolts to install and fix the base 12 and the ground through the installation holes 15, so that the trouble that the existing vertical multi-stage centrifugal pump cannot be fixedly installed is solved, the base 12 is made of anti-skid rubber materials, the vertical multi-stage centrifugal pump can be well erected on some flat ground or the placing rack, the trouble that the vertical multi-stage centrifugal pump moves and topples over due to the vibration of the inner impeller 5 during the working process of the vertical multi-stage centrifugal pump is prevented, the sealing bearing 601 and the pump shaft 4 are installed, then the fixing sleeve ring 602 is installed and fixed with the bottom of the inner cavity of the motor base 2 through the bolt matching threaded hole 603, after the person opens the motor 1, the motor 1 drives the pump shaft 4 and the impeller 5 to rotate through the output shaft, and the sealing bearing 601 is made of double bearings, and sealed bearing 601 outer lane inner chamber middle part is fixed with sealed pad 604, thereby can further improve sealed bearing 601's sealed effect, and sealed bearing 601 inner chamber is provided with two-layer ball, thereby can improve sealed bearing 601's life greatly, open motor 1 through personnel, make motor 1 produce suction through output shaft transmission pump shaft 4, make 8 confession fluid inflows of water inlet, then flow by the delivery port after impeller 5 carries out the pressure boost, thereby vertical multistage centrifugal pump's the mesh to the fluid pressure boost has been realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a vertical multistage centrifugal pump of stainless steel of high leakproofness, includes motor (1), its characterized in that: the motor is characterized in that a motor base (2) is fixedly connected to the lower end face of a motor (1) through bolts, an outer barrel (7) is fixed to the lower end face of the motor base (2), the outer barrel (7) is fixedly connected to a pump body (10) through a pull-in bolt (11), a junction box (3) is arranged outside the motor (1), the motor (1) is fixedly connected to a pump shaft (4) through an output shaft matching coupler (13), the motor base (2) is communicated with an inner cavity of the outer barrel (7) through the pump shaft (4), an impeller (5) is arranged outside the pump shaft (4), a sealing assembly (6) is arranged at the bottom of the inner cavity of the motor base (2) and at the communication position of the outer barrel (7), and a base (12) is fixed to the lower end face of the pump body (10).

2. The high-sealing stainless steel vertical multistage centrifugal pump according to claim 1, characterized in that: the sealing assembly (6) comprises a sealing bearing (601), a fixing sleeve ring (602) and a threaded hole (603), the fixing sleeve ring (602) is fixed outside the sealing bearing (601), and the threaded hole (603) is formed in the upper end of the fixing sleeve ring (602).

3. The high-sealing stainless steel vertical multistage centrifugal pump according to claim 1, characterized in that: the anti-skidding rubber base is characterized in that a mounting hole (15) is formed in the upper end face of the base (12), and the base (12) is made of anti-skidding rubber materials.

4. The high-sealing stainless steel vertical multistage centrifugal pump according to claim 2, characterized in that: the sealing bearing (601) is made of double bearings, and a sealing gasket (604) is fixed in the middle of an inner cavity of an outer ring of the sealing bearing (601).

5. The high-sealing stainless steel vertical multistage centrifugal pump according to claim 1, characterized in that: the left end and the right end of the pump body (10) are provided with a water inlet (8) and a water outlet (9).

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