CN219754817U

CN219754817U - Centrifugal pump for transporting process fluid

Info

Publication number: CN219754817U
Application number: CN202321372607.3U
Authority: CN
Inventors: 缪宏程
Original assignee: Jiangsu S&p Industry Co ltd
Current assignee: Jiangsu S&p Industry Co ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2023-09-26
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a centrifugal pump for transporting process fluid, and relates to the technical field of centrifugal pumps. The centrifugal pump comprises a pump shell, wherein one side of the pump shell is fixedly connected with a sealing plate through a plurality of fixing bolts, one side of the sealing plate, far away from the pump shell, is provided with a round hole in a penetrating way, the circle center of the sealing plate is provided with a guiding mechanism in a penetrating way, the guiding mechanism is located inside the round hole, the guiding mechanism extends to the inside of the pump shell, one side of the pump shell, far away from the sealing plate, is fixedly connected with a power mechanism, the power mechanism movably penetrates the pump shell and extends to the inside of the pump shell, one side of the top of the outer wall of the pump shell is fixedly connected with a water outlet hole, a check mechanism is movably arranged in the water outlet hole, the direction of water flow is changed through the guiding mechanism, so that the water flows to the periphery, and the better is stirred by the power mechanism to rotate in the pump shell to generate centrifugal force, the pumping efficiency of the centrifugal pump is improved, and the water backflow is avoided and the power mechanism is backflushed through the arrangement of the check mechanism.

Description

Centrifugal pump for transporting process fluid

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump for transporting process fluid.

Background

The centrifugal pump is a pump for conveying liquid by centrifugal force generated when the impeller rotates, and mainly comprises the impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like.

When the existing centrifugal pump for transporting process fluid is used, external fluid is usually directly supplied into the pump body through a water inlet pipe covered by a pump shell, so that water stall caused by centrifugal rotation in the pump body is easily caused, and the water pumping efficiency of the centrifugal pump is affected.

For this purpose, a centrifugal pump for transporting a process fluid is proposed.

Disclosure of Invention

The utility model aims at: to solve the problems mentioned in the background art above, the present utility model provides a centrifugal pump for transporting a process fluid.

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a centrifugal pump for transporting process fluid, includes the pump case, one of them side of pump case is through a plurality of fixing bolt fixedly connected with shrouding, the round hole has been seted up in the one side of shrouding of keeping away from the pump case in a run-through, the centre of a circle department of shrouding runs through and peg graft there is guiding mechanism, guiding mechanism is located inside this round hole, just guiding mechanism extends to the inside of pump case, one side middle part fixedly connected with power unit of keeping away from the shrouding of pump case, power unit activity runs through the pump case, and extends to its inside, outer wall top one side fixedly connected with play water of pump case is roar, the inside activity that goes out water and roar is equipped with check mechanism.

Further, guiding mechanism includes the inlet tube, round hole inner wall fixed connection has been seted up on the outer wall of inlet tube and the shrouding, the inlet tube has run through and has been seted up a plurality of water outlet tanks on the inside one side outer wall of pump case, and is a plurality of the water outlet tanks are circumference array distribution, fixedly connected with guide holder on the terminal surface in one side that the inlet tube is close to a plurality of water outlet tanks, the guide holder is the coniform that the surface is the arc setting, just the guide holder is located between a plurality of water outlet tanks.

Further, the power mechanism comprises a servo motor, the servo motor is fixedly connected to the middle part of one side surface of the pump shell, which is far away from the sealing plate, an output shaft of the servo motor movably penetrates through the pump shell and extends out of the pump shell, the output shaft of the servo motor is connected with the pump shell through a watertight bearing, a pump wheel is fixedly connected to the outer wall of the output shaft of the servo motor, the pump wheel is located in the pump shell, and blades of the servo motor are located on the periphery of a plurality of water outlet grooves.

Further, the check mechanism comprises a locating pin, the locating pin is fixedly connected with the front inner wall and the back inner wall of the water outlet nozzle, the valve plate is rotationally connected to the outer wall of the locating pin, the specification of the valve plate is matched with the specification of the inner wall of the water outlet nozzle, two arc springs are fixedly connected to the top surface of the valve plate, one end of the arc springs, far away from the valve plate, is fixedly connected with the inner wall of one side of the water outlet nozzle, the water outlet nozzle is fixedly connected with a limit stop block, and the top surface of the limit stop block is in contact with the bottom surface of the valve plate.

Further, the bottom of the limit stop is provided with an inclined plane.

Further, the bottom of the pump shell is fixedly connected with a base.

The beneficial effects of the utility model are as follows:

according to the centrifugal pump, the direction of water flow is changed through the guide mechanism, so that the water flows around, the centrifugal pump is better stirred by the power mechanism and rotates in the pump shell to generate centrifugal force, the water pumping efficiency of the centrifugal pump is improved, and the back-flushing of the power mechanism due to water backflow is avoided through the arrangement of the non-return mechanism.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a guide mechanism according to the present utility model;

FIG. 3 is a cross-sectional view of the check mechanism of the present utility model;

fig. 4 is an enlarged partial schematic view of fig. 3 a according to the present utility model.

Reference numerals in the drawings: 1. a pump housing; 2. a sealing plate; 3. a guide mechanism; 4. a power mechanism; 5. water outlet roar; 6. a non-return mechanism; 7. a base; 301. a water inlet pipe; 302. a water outlet tank; 303. a guide seat; 401. a servo motor; 402. a pump wheel; 601. a positioning pin; 602. a valve plate; 603. an arc spring; 604. and a limit stop.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 and 2, a centrifugal pump for transporting process fluid, including a pump casing 1, one side of the pump casing 1 is fixedly connected with a sealing plate 2 through a plurality of fixing bolts, a round hole is formed in a penetrating manner on one side of the sealing plate 2 away from the pump casing 1, a guiding mechanism 3 is inserted in a penetrating manner on the circle center of the sealing plate 2, the guiding mechanism 3 is located inside the round hole, the guiding mechanism 3 extends to the inside of the pump casing 1, a power mechanism 4 is fixedly connected to the middle part of one side of the pump casing 1 away from the sealing plate 2, the power mechanism 4 movably penetrates the pump casing 1 and extends to the inside of the pump casing, a water outlet roar 5 is fixedly connected to one side of the top of the outer wall of the pump casing 1, a non-return mechanism 6 is movably arranged in the inside of the water outlet roar 5, more specifically, after water enters the guiding mechanism 3, the direction of water flow is changed through the guiding mechanism 3, so that the water flows to the periphery, and the water is stirred by the power mechanism 4 to rotate inside the pump casing 1 to generate centrifugal force, and output from the water outlet roar 5, and a back flushing mechanism 4 is avoided through the non-return mechanism 6.

As shown in fig. 1, the guiding mechanism 3 includes a water inlet pipe 301, the outer wall of the water inlet pipe 301 is fixedly connected with the inner wall of a circular hole formed on the sealing plate 2, a plurality of water outlet tanks 302 are formed on the outer wall of one side of the inner portion of the water inlet pipe 301, the plurality of water outlet tanks 302 are distributed in a circumferential array, a guiding seat 303 is fixedly connected to the inner end surface of one side of the water inlet pipe 301, the guiding seat 303 is in a cone shape with an arc-shaped surface, the guiding seat 303 is located between the plurality of water outlet tanks 302, more specifically, after water flows into the water inlet pipe 301, the conical guiding seat 303 which is arranged in an arc shape guides the flow direction of the water flow, so that the water flow flows along the surface of the guiding seat 303, and the water flow direction is changed, and the water flows smoothly through the water outlet tanks 302 to be discharged into the inner portion of the pump casing 1 and spread all around, contacts with blades on the pump wheel 402, and the water pumping efficiency of the centrifugal pump is improved.

As shown in fig. 1 and 3, the power mechanism 4 includes a servo motor 401, the servo motor 401 is fixedly connected to a middle part of a side surface of the pump casing 1 far away from the sealing plate 2, an output shaft of the servo motor 401 movably penetrates through the pump casing 1 and extends to the outside of the pump casing, an output shaft of the servo motor 401 is connected with the pump casing 1 through a watertight bearing, a pump wheel 402 is fixedly connected to an outer wall of the output shaft of the servo motor 401, the pump wheel 402 is located in the pump casing 1, blades of the servo motor 401 are located on the periphery of the plurality of water outlet grooves 302, and more specifically, the pump wheel 402 is driven to rotate by providing driving force through the servo motor 401, so that water pumping operation is performed.

As shown in fig. 3 and 4, the check mechanism 6 includes a locating pin 601, the locating pin 601 is fixedly connected with the front inner wall and the back inner wall of the water outlet hole 5, the valve plate 602 is rotationally connected with the valve plate 602 on the outer wall of the locating pin 601, the specification size of the valve plate 602 is matched with the specification of the inner wall of the water outlet hole 5, two arc springs 603 are fixedly connected with the top surface of the valve plate 602, one end of the two arc springs 603 far away from the valve plate 602 is fixedly connected with one side inner wall of the water outlet hole 5, one side inner wall of the water outlet hole 5 far away from the locating pin 601 is fixedly connected with a limit stop 604, the top surface of the limit stop 604 is contacted with the bottom surface of the valve plate 602, more specifically, under the action of the power mechanism 4, water enters into the water outlet hole 5 through the pump shell 1, at this moment, under the action of water pressure, the valve plate 602 is turned upwards along the locating pin 601, the water outlet hole 5 is in an open state, thereby realizing water pumping operation, two arc springs 603 are turned upwards along with the valve plate 602 and are compressed and store forces, when the power mechanism 4 stops pumping water, the valve plate, the elastic force of the two arc springs 603 drives the reset and reset the limit stop 604, the upper limit stop is contacted with the bottom of the valve plate 604, more specifically, and the upper limit stop is prevented from being excessively turned down, and the upper limit stop effect of the valve plate 602 is avoided, and the upper limit stop is not turned down.

As shown in fig. 4, the bottom of the limit stop 604 is provided with a slope, more specifically, by setting the bottom to be in a slope state, the flow resistance of the bottom of the limit stop 604 to the water flow is reduced, so that the water flow smoothly enters the water outlet roar 5 from the inside of the pump casing 1.

As shown in fig. 1 and 3, the bottom of the pump casing 1 is fixedly connected with a base 7, more specifically, by setting the base 7, the use stability of the centrifugal pump is improved.

To sum up: the direction of water flow is changed through the guide mechanism 3, so that the water flows around, the water is stirred by the power mechanism 4 better and rotates in the pump shell 1 to generate centrifugal force, the water pumping efficiency of the centrifugal pump is improved, and the back flow of the water is avoided and the power mechanism 4 is backflushed through the non-return mechanism 6.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a centrifugal pump for transporting process fluid, its characterized in that, including pump case (1), one of them side of pump case (1) is through a plurality of fixing bolt fixedly connected with shrouding (2), one side that pump case (1) were kept away from to shrouding (2) runs through and has seted up the round hole, the centre of a circle department of shrouding (2) runs through and peg graft there is guiding mechanism (3), guiding mechanism (3) are located inside this round hole, just guiding mechanism (3) extend to the inside of pump case (1), one side middle part fixedly connected with power unit (4) that shrouding (2) were kept away from to pump case (1), power unit (4) activity runs through pump case (1), and extends to its inside, outer wall top one side fixedly connected with play water of pump case (1) is up (5), the inside activity of leaving water and being equipped with check mechanism (6) up.

2. The centrifugal pump for transporting process fluid according to claim 1, wherein the guiding mechanism (3) comprises a water inlet pipe (301), the outer wall of the water inlet pipe (301) is fixedly connected with the inner wall of a round hole formed in the sealing plate (2), a plurality of water outlet grooves (302) are formed in the outer wall of one side of the water inlet pipe (301) located in the pump shell (1) in a penetrating mode, the water outlet grooves (302) are distributed in a circumferential array, a guiding seat (303) is fixedly connected to the inner end face of one side, close to the water outlet grooves (302), of the water inlet pipe (301), the guiding seat (303) is in a cone shape, the surface of the cone shape is arranged in an arc shape, and the guiding seat (303) is located among the water outlet grooves (302).

3. A centrifugal pump for transporting process fluids according to claim 1, wherein the power mechanism (4) comprises a servo motor (401), the servo motor (401) is fixedly connected to the middle part of one side surface of the pump housing (1) far away from the sealing plate (2), an output shaft of the servo motor (401) movably penetrates through the pump housing (1) and extends to the outside of the pump housing, an output shaft of the servo motor (401) is connected with the pump housing (1) through watertight bearings, a pump wheel (402) is fixedly connected to the outer wall of the output shaft of the servo motor (401), the pump wheel (402) is located in the pump housing (1), and blades of the servo motor (401) are located on the periphery of the plurality of water outlet tanks (302).

4. The centrifugal pump for transporting process fluid according to claim 1, wherein the check mechanism (6) comprises a positioning pin (601), the positioning pin (601) is fixedly connected with the front inner wall and the back inner wall of the water outlet nozzle (5), a valve plate (602) is rotationally connected to the outer wall of the positioning pin (601), the specification of the valve plate (602) is matched with the specification of the inner wall of the water outlet nozzle (5), two arc springs (603) are fixedly connected to the top surface of the valve plate (602), one end of each arc spring (603) far away from the valve plate (602) is fixedly connected with the inner wall of one side of the water outlet nozzle (5), one side of the water outlet nozzle (5) far away from the positioning pin (601) is fixedly connected with a limit stop (604), and the top surface of the limit stop (604) is in contact with the bottom surface of the valve plate (602).

5. A centrifugal pump for transporting a process fluid according to claim 4, wherein the bottom of the limit stop (604) is provided with a bevel.

6. Centrifugal pump for transporting process fluids according to claim 1, characterized in that the bottom of the pump housing (1) is fixedly connected with a base (7).