CN215486637U

CN215486637U - Horizontal single-stage single-suction clean water centrifugal pump

Info

Publication number: CN215486637U
Application number: CN202121396410.4U
Authority: CN
Inventors: 赵风卫; 郭霞
Original assignee: Henan Rongwei Industrial Co ltd
Current assignee: Henan Rongwei Industrial Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-11
Anticipated expiration: 2031-06-23

Abstract

The utility model belongs to the technical field of water pumps, and particularly relates to a horizontal single-stage single-suction clear water centrifugal pump which comprises a pump body, wherein an impeller is arranged on the inner side of the pump body, a shaft is arranged on the inner side of the impeller, a shaft sleeve is arranged on the shaft, an impeller mounting groove is formed in the shaft sleeve, an impeller nut mounting groove is formed in the impeller, an impeller nut is arranged in the impeller nut mounting groove, a pump cover is arranged on the right side of the pump body, a mechanical seal is arranged between the pump cover and the shaft sleeve, a mechanical seal gland is arranged on the right side of the pump cover, and sealing gaskets are arranged on the impeller nut mounting groove, the impeller mounting groove, the pump body and the pump cover and between the pump cover and the mechanical seal gland.

Description

Horizontal single-stage single-suction clean water centrifugal pump

Technical Field

The utility model belongs to the technical field of water pumps, and particularly relates to a horizontal single-stage single-suction clean water centrifugal pump.

Background

The centrifugal pump is suitable for water supply and drainage in industry and city, and also for agricultural irrigation and drainage. For transporting clear water or other liquids having physical and chemical properties similar to clear water. When the centrifugal pump works, the impeller is driven by the motor to rotate at a high speed, so that liquid among the blades is forced to rotate at an equal angular speed, the liquid moves radially from the center of the impeller to the outer edge under the action of centrifugal force, the liquid obtains energy in the process of moving in the impeller and leaves the outer edge of the impeller at a high speed to enter a volute pump shell, and in the volute, the speed is reduced due to gradual expansion of a flow passage, part of kinetic energy is converted into potential energy, and finally the potential energy flows into an outlet pipeline along the tangential direction.

Chinese patent with application number cn201520575017.x discloses a clear water centrifugal pump, including the pump body, connect in pump cover, the pump shaft of the pump body be equipped with the through hole on the pump cover, the pump shaft is worn to establish and is run through the hole, be equipped with sealing mechanism on the pump cover, sealing mechanism including lie in between pump shaft lateral wall and the through hole pore wall pack, be used for compressing tightly the filler and can dismantle fixed connection in the gland of pump cover, gland is close to the inclined plane that one side of filler set up for the slope, after the filler cavity is packed into, makes axial compression to it through gland, and the filler has certain plasticity, produces certain radial pressure when the inclined plane compresses to plastic materials, increases sealed effect.

However, there may be a gap between the impeller and the shaft during the installation of the above prior art, and especially when the water pressure is high, water may leak out from the gap between the impeller and the shaft during transportation, resulting in poor suction, and increasing the probability of water entering the bearing along the shaft.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a horizontal single-stage single-suction clean water centrifugal pump which is used for solving the problems that when an existing impeller and a shaft are installed, a gap possibly exists, and when the water pressure is high, water possibly leaks from the gap between the impeller and the shaft in the transportation process.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a horizontal single-stage single-suction clear water centrifugal pump, includes the pump body, pump body inboard is equipped with the impeller, the impeller inboard is equipped with the axle, epaxial axle sleeve that is equipped with, be equipped with impeller mounting groove on the axle sleeve, be equipped with impeller nut mounting groove on the impeller, be equipped with impeller nut on the impeller nut mounting groove, pump body right side is equipped with the pump cover, be equipped with mechanical seal between pump cover and the axle sleeve, the pump cover right side is equipped with the machine and seals the gland, all be equipped with sealed the pad on the impeller nut mounting groove, on the impeller mounting groove, between the pump body and the pump cover, between pump cover and the machine and seal the gland.

Further, be equipped with the intermediate support on the pump cover, the intermediate support right side is equipped with the suspension, the suspension bottom is equipped with the suspension support.

The middle support is used for connecting the pump cover and the suspension, and the middle support can protect the mechanical seal gland, prevent that the mechanical seal gland from directly exposing in the air, and the suspension support provides the bottom sprag for the suspension.

Further, a bearing is arranged between the suspension and the shaft, a bearing gland is arranged on the side face of the bearing, an oil seal is arranged between the bearing gland and the shaft, and a paper pad is arranged between the bearing gland and the suspension.

The bearing can become rolling friction with the sliding friction between suspension and the axle, prevents to appear excessive wearing and tearing between suspension and the axle, and bearing gland can press the bearing between suspension and axle, prevents that the bearing from sliding, and the oil blanket can fill the space between bearing gland and the axle, and the paper pad can let bearing gland and suspension be connected more tightly in the installation.

Further, the shaft right side is equipped with the motor, be equipped with the shaft coupling between axle, the motor, the shaft coupling outside is equipped with the protection casing.

The motor is the power source of whole device, can drive the axle rotation, through the coupling joint between axle, the motor, and the protection casing can protect the shaft coupling, prevents that the external world can be from getting into the shaft coupling in, lets the excessive wearing and tearing of shaft coupling.

Furthermore, an oil pointer is arranged on the suspension, and an air release plug is arranged at the top of the suspension.

The user can judge the surplus of the inboard lubricating oil of suspension through observing the oil pointer, if the surplus of lubricating oil is not enough, can open the gas release plug, adds lubricating oil in to the suspension, lubricates the bearing.

Furthermore, a water inlet is formed in the pump body, a screwed plug is arranged on the pump body, and a base is arranged below the pump body.

Water can get into in the pump body from the water inlet, and the user can pull down the plug, discharges the internal residual liquid of pump, and the base is connected bottom the pump body, suspension bracket, protection casing, motor, provides the bottom sprag for whole device.

Compared with the prior art, the utility model has the following beneficial effects:

1. sealing gaskets are additionally arranged on the impeller nut mounting groove, the impeller mounting groove, the pump body and the pump cover, and the pump cover and the mechanical seal gland, so that the centrifugal pump has a better sealing effect, and water is prevented from flowing out of gaps among a plurality of components;

2. the suspension bracket can provide bottom support for the suspension, so that the suspension is prevented from being suspended, certain vibration can be reduced, and the centrifugal pump is protected;

3. the centrifugal pump has the advantages of simple structure, reliable performance, small volume, light weight, good corrosion resistance, low power consumption and convenient use and maintenance, and is suitable for urban environmental protection, construction, fire protection, chemical industry, pharmacy, dye, printing and dyeing, brewing, electric power, electroplating, papermaking, petroleum, mine, equipment cooling, oil tanker oil unloading and the like.

Drawings

FIG. 1 is a sectional view of an embodiment of a horizontal single stage single suction centrifugal pump according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

reference numerals in the drawings of the specification include:

the pump comprises an impeller 1, an impeller nut installation groove 101, a pump body 2, a water inlet 201, a pump cover 3, an intermediate support 4, a suspension 5, a bearing gland 6, a coupling 7, a protective cover 8, a motor 9, an impeller nut 10, a sealing gasket 11, a plug 12, a base 13, a shaft sleeve 15, an impeller installation groove 1501, a mechanical seal 17, a mechanical seal gland 19, a shaft 20, an oil pointer 21, a suspension support 22, a gas release plug 23, an oil seal 24, a bearing 25 and a paper pad 26.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-3, the horizontal single-stage single-suction clear water centrifugal pump comprises a pump body 2, an impeller 1 is arranged on the inner side of the pump body 2, a shaft 20 is arranged on the inner side of the impeller 1, a shaft sleeve 15 is arranged on the shaft 20, an impeller mounting groove 1501 is arranged on the shaft sleeve 15, an impeller nut mounting groove 101 is arranged on the impeller 1, an impeller nut 10 is arranged on the impeller nut mounting groove 101, a pump cover 3 is arranged on the right side of the pump body 2, a mechanical seal 17 is arranged between the pump cover 3 and the shaft sleeve 15, a mechanical seal gland 19 is arranged on the right side of the pump cover 3, and sealing gaskets 11 are respectively arranged on the impeller nut mounting groove 101, the impeller mounting groove 1501, between the pump body 2 and the pump cover 3, and between the pump cover 3 and the mechanical seal gland 19. Specifically, the pump body 2 is the main structure of the whole device, the impeller 1 provides kinetic energy for liquid, the liquid pumping function is realized, the shaft 20 can drive the impeller 1 to rotate together, the shaft sleeve 15 can protect the shaft 20, the shaft 20 is prevented from being in direct contact with the mechanical seal 17, the impeller mounting groove 1501 provides a mounting position for the impeller 1, the impeller nut mounting groove 101 provides a mounting position for the impeller nut 10, the impeller nut 10 can fix the impeller 1 on the shaft 20, the pump cover 3 can seal one side of the pump body 2, the mechanical seal 17 can fill a gap between the pump cover 3 and the shaft sleeve 15, the mechanical seal cover 19 can limit the position of the mechanical seal 17, the mechanical seal 17 is prevented from sliding, the seal gasket 11 can enable the centrifugal pump to have a better sealing effect, and water is prevented from flowing out from gaps among a plurality of components.

Example two:

as a further improvement of the previous embodiment, as shown in fig. 1-3, the present invention provides a horizontal single-stage single-suction centrifugal pump, which includes a pump body 2, an impeller 1 is disposed inside the pump body 2, a shaft 20 is disposed inside the impeller 1, a shaft sleeve 15 is disposed on the shaft 20, an impeller mounting groove 1501 is disposed on the shaft sleeve 15, an impeller nut mounting groove 101 is disposed on the impeller 1, an impeller nut 10 is disposed on the impeller nut mounting groove 101, a pump cover 3 is disposed on the right side of the pump body 2, a mechanical seal 17 is disposed between the pump cover 3 and the shaft sleeve 15, a mechanical seal gland 19 is disposed on the right side of the pump cover 3, and sealing gaskets 11 are disposed on the impeller nut mounting groove 101, the impeller mounting groove 1501, between the pump body 2 and the pump cover 3, and between the pump cover 3 and the mechanical seal gland 19. Specifically, the pump body 2 is the main structure of the whole device, the impeller 1 provides kinetic energy for liquid, the liquid pumping function is realized, the shaft 20 can drive the impeller 1 to rotate together, the shaft sleeve 15 can protect the shaft 20, the shaft 20 is prevented from being in direct contact with the mechanical seal 17, the impeller mounting groove 1501 provides a mounting position for the impeller 1, the impeller nut mounting groove 101 provides a mounting position for the impeller nut 10, the impeller nut 10 can fix the impeller 1 on the shaft 20, the pump cover 3 can seal one side of the pump body 2, the mechanical seal 17 can fill a gap between the pump cover 3 and the shaft sleeve 15, the mechanical seal cover 19 can limit the position of the mechanical seal 17, the mechanical seal 17 is prevented from sliding, the seal gasket 11 can enable the centrifugal pump to have a better sealing effect, and water is prevented from flowing out from gaps among a plurality of components.

The pump cover 3 is provided with a middle support 4, the right side of the middle support 4 is provided with a suspension bracket 5, and the bottom of the suspension bracket 5 is provided with a suspension bracket 22. Specifically, the intermediate bracket 4 is used to connect the pump cover 3 and the suspension 5, and the intermediate bracket 4 can protect the mechanical seal cover 19 from direct exposure to air, and the suspension bracket 22 provides bottom support for the suspension 5.

A bearing 25 is arranged between the suspension 5 and the shaft 20, a bearing gland 6 is arranged on the side surface of the bearing 25, an oil seal 24 is arranged between the bearing gland 6 and the shaft 20, and a paper pad 26 is arranged between the bearing gland 6 and the suspension 5. Specifically, the bearing 25 can change sliding friction between the suspension 5 and the shaft 20 into rolling friction, excessive wear between the suspension 5 and the shaft 20 is prevented, the bearing gland 6 can press the bearing 25 between the suspension 5 and the shaft 20, the bearing 25 is prevented from sliding, the oil seal 24 can fill a gap between the bearing gland 6 and the shaft 20, and the paper pad 26 can enable the bearing gland 6 and the suspension 5 to be connected more tightly in the installation process.

The motor 9 is arranged on the right side of the shaft 20, the coupling 7 is arranged between the shaft 20 and the motor 9, and the protective cover 8 is arranged on the outer side of the coupling 7. Particularly, motor 9 is the power source of whole device, can drive axle 20 and rotate, connects through shaft coupling 7 between axle 20, the motor 9, and shaft coupling 7 can be protected to protection casing 8, prevents that the external world from following entering shaft coupling 7 in, lets shaft coupling 7 excessive wear.

An oil pointer 21 is arranged on the suspension 5, and a vent plug 23 is arranged at the top of the suspension 5. Specifically, the user can determine the remaining amount of the lubricant inside the suspension 5 by looking at the oil level gauge 21, and if the remaining amount of the lubricant is insufficient, the relief plug 23 can be opened to add the lubricant into the suspension 5 to lubricate the bearing 25.

The pump body 2 is provided with a water inlet 201, the pump body 2 is provided with a plug 12, and a base 13 is arranged below the pump body 2. Specifically, water can get into the pump body 2 from water inlet 201, and the user can pull down plug 12, discharges the remaining liquid in the pump body 2, and base 13 is connected with pump body 2, suspension bracket 22, protection casing 8, motor 9 bottom, provides the bottom sprag for whole device.

Embodiment two to embodiment one, in embodiment two, the middle bracket 4 is used to connect the pump cover 3 and the suspension 5, and the middle bracket 4 can protect the mechanical seal cover 19, and prevent the mechanical seal cover 19 from being directly exposed to the air, the suspension bracket 22 provides a bottom support for the suspension 5, the bearing 25 can change the sliding friction between the suspension 5 and the shaft 20 into rolling friction, and prevent excessive wear between the suspension 5 and the shaft 20, the bearing cover 6 can press the bearing 25 between the suspension 5 and the shaft 20, and prevent the bearing 25 from sliding, the oil seal 24 can fill the gap between the bearing cover 6 and the shaft 20, the paper pad 26 can make the bearing cover 6 and the suspension 5 more tightly connected during installation, the motor 9 is a power source of the whole device, and can drive the shaft 20 to rotate, the shaft 20 and the motor 9 are connected through the coupling 7, the protective cover 8 can protect the coupling 7, prevent that the external world can follow in getting into shaft coupling 7, let shaft coupling 7 excessive wear, the user can judge the surplus of the inboard lubricating oil of suspension 5 through observing oil mark 21, if the surplus of lubricating oil is not enough, then can open air release plug 23, add lubricating oil in to suspension 5, lubricate bearing 25, water can follow and get into in the water inlet 201 the pump body 2, the user can pull down plug 12, emit the remaining liquid in the pump body 2, base 13 and the pump body 2, suspension bracket 22, protection casing 8, motor 9 bottom is connected, provide the bottom sprag for whole device.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the utility model in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the utility model may be embodied in practice with the teachings of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a clear water centrifugal pump is inhaled to horizontal single-stage list which characterized in that: including the pump body (2), the pump body (2) inboard is equipped with impeller (1), impeller (1) inboard is equipped with axle (20), be equipped with axle sleeve (15) on axle (20), be equipped with impeller mounting groove (1501) on axle sleeve (15), be equipped with impeller nut mounting groove (101) on impeller (1), be equipped with impeller nut (10) on impeller nut mounting groove (101), the pump body (2) right side is equipped with pump cover (3), be equipped with mechanical seal (17) between pump cover (3) and axle sleeve (15), pump cover (3) right side is equipped with machine and seals gland (19), all be equipped with sealed pad (11) on impeller nut mounting groove (101), on impeller mounting groove (1501), between pump body (2) and pump cover (3), between pump cover (3) and machine and seal gland (19).

2. The horizontal single-stage single-suction centrifugal pump of claim 1, wherein: be equipped with middle support (4) on pump cover (3), middle support (4) right side is equipped with suspension (5), suspension (5) bottom is equipped with suspension support (22).

3. The horizontal single-stage single-suction centrifugal pump of claim 2, wherein: be equipped with bearing (25) between suspension (5) and axle (20), bearing (25) side is equipped with bearing gland (6), be equipped with oil blanket (24) between bearing gland (6) and axle (20), be equipped with paper pad (26) between bearing gland (6) and suspension (5).

4. A horizontal single-stage single-suction centrifugal pump for fresh water as claimed in claim 3, wherein: the motor (9) is arranged on the right side of the shaft (20), the shaft coupling (7) is arranged between the shaft (20) and the motor (9), and the protective cover (8) is arranged on the outer side of the shaft coupling (7).

5. The horizontal single-stage single-suction centrifugal pump of claim 4, wherein: an oil pointer (21) is arranged on the suspension (5), and an air release plug (23) is arranged at the top of the suspension (5).

6. The horizontal single-stage single-suction centrifugal pump of claim 5, wherein: the pump is characterized in that a water inlet (201) is formed in the pump body (2), a plug (12) is arranged on the pump body (2), and a base (13) is arranged below the pump body (2).