CN214788037U - Single suction centrifugal pump - Google Patents
Single suction centrifugal pump Download PDFInfo
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- CN214788037U CN214788037U CN202120862510.5U CN202120862510U CN214788037U CN 214788037 U CN214788037 U CN 214788037U CN 202120862510 U CN202120862510 U CN 202120862510U CN 214788037 U CN214788037 U CN 214788037U
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- pump
- pump body
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- impeller
- water
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Abstract
The utility model belongs to the technical field of centrifugal pump device, concretely relates to single centrifugal pump of inhaling, which comprises a pump body, pump body left side is equipped with the water inlet, pump body top is equipped with the delivery port, pump body bottom plate is equipped with the mount, the inside impeller that is equipped with of the pump body, be equipped with the guiding gutter on the impeller, the impeller inboard is equipped with the bull stick, the bull stick right side is equipped with the motor, pump body right side is equipped with the pump cover, be equipped with a plurality of pump cover mounting brackets on the pump cover, the pump cover mounting bracket is connected with the motor left side, the motor top is equipped with rings, the utility model provides a current water can directly enter into the motor in the middle of along the pivot, causes the motor to damage, and the centrifugal pump is dismantled and is opened, can produce the problem of great noise at the during operation.
Description
Technical Field
The utility model belongs to the technical field of centrifugal pump device, concretely relates to single suction centrifugal pump.
Background
The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and has various forms such as vertical type, horizontal type, single stage, multi-stage, single suction, double suction, self suction and the like. Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. 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.
Chinese patent application No. CN201911203522.0 discloses a centrifugal pump, which comprises a centrifugal pump body, a rear cover and a rear cover screw; the front end of the centrifugal pump body is provided with a liquid inlet and a liquid outlet; the rear cover is sleeved at the rear end of the centrifugal pump body; the rear cover screw is used for fastening the rear cover on the centrifugal pump body; the centrifugal pump also comprises an anchor ear assembly, and the anchor ear assembly comprises an anchor ear and a fastening connection structure; the hoop is used for being sleeved on the outer side of the rear cover; and the fastening connection structure is used for fastening and connecting the two ends of the hoop to tightly clamp the hoop on the rear cover when the hoop is sleeved on the outer side of the rear cover. The back cover is fixed on the basis of the centrifugal pump body through a back cover screw, and the hoop sleeved outside the back cover is additionally arranged, so that the hoop is hooped on the back cover under the action of the fastening and connecting structure, and the back cover is fastened on the centrifugal pump body; through the synergistic action of the rear cover screw and the hoop, the rear cover screw on the rear cover is not easy to loosen, so that the normal operation of the centrifugal pump is ensured, the generation of mechanical faults is reduced, and the working efficiency is improved.
However, the motor and the pump body in the above prior art are connected together, if the mechanical seal fails, there is a possibility that water may directly enter the motor along the rotating shaft, causing damage to the motor, especially in long-time operation, the mechanical seal is worn, water enters the motor, a long-time shutdown phenomenon may occur, and once the motor leaks electricity, a user may be injured.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model provides a single suction centrifugal pump for solve present water can directly enter into the motor along the pivot in the middle of, cause the motor to damage, centrifugal pump dismantles out, and the centrifugal pump can produce the problem of great noise at the during operation.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a single suction centrifugal pump, includes the pump body, pump body left side is equipped with the water inlet, pump body top is equipped with the delivery port, pump body bottom plate is equipped with the mount, the inside impeller that is equipped with of the pump body, be equipped with the guiding gutter on the impeller, the impeller inboard is equipped with the bull stick, the bull stick right side is equipped with the motor, pump body right side is equipped with the pump cover, be equipped with a plurality of pump cover mounting brackets on the pump cover, the pump cover mounting bracket is connected with the motor left side, the motor top is equipped with rings.
Furthermore, a flat key is arranged on the rotating rod, a nut is arranged at the left end of the rotating rod, and a flat gasket is arranged between the nut and the impeller.
The flat key can restrict the circumferential direction with the impeller, lets the bull stick can drive the impeller and rotate, and the nut can restrict the axial slip of impeller, lets impeller and bull stick keep static relatively, and the flat pad can let the nut not become flexible.
Further, the inner side of the pump cover is provided with a mechanical seal.
The mechanical seal can prevent water in the centrifugal pump from flowing out of the pump cover and the rotating rod.
Furthermore, be equipped with a plurality of installation through-holes on the pump body, be equipped with a plurality of bolts on the pump body, the pump body passes through the bolt and is connected with the mount.
The mounting through hole is used for mounting and connecting a pipeline of the centrifugal pump, the pump body is connected with the fixing frame through bolts, and the fixing frame provides a mounting position for the pump body.
Furthermore, the guiding gutters are uniformly distributed on the impeller, and the impeller is connected with the rotating rod through a nut.
The water chute can guide the flow direction of water in the pump body, and reduce the vibration of the water in the pump body, thereby reducing noise.
Further, the pump body is connected with the pump cover through a bolt, the pump cover mounting frame is connected with the left side of the motor through a bolt and a nut, and a gap exists between the pump cover and the motor.
There is the space between pump cover and the motor, when mechanical seal damaged, can prevent effectively that water from getting into the motor in the middle of along the direction of bull stick, avoiding the motor to break down.
Compared with the prior art, the utility model, following beneficial effect has:
1. the pump cover is connected with the pump cover mounting frame for the motor, so that a gap exists between the pump cover and the motor, water can be effectively prevented from entering the motor along the direction of the rotating rod, and the motor is prevented from being broken down;
2. the pump cover is arranged at one side close to the motor, so that the pump cover can be conveniently detached when the centrifugal pump fails, and the maintenance is convenient;
3. the water guide grooves are uniformly formed in the impeller to guide the flow direction of water in the pump body, the impeller 4 is directly arranged on the rotating rod of the motor, the rotating rod is short in axial size and compact in structure, radial and axial loads generated by the operation of the centrifugal pump can be effectively balanced, and therefore the centrifugal pump is stable in operation and low in vibration noise.
Drawings
FIG. 1 is a schematic perspective view of a single suction centrifugal pump according to an embodiment of 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 cover comprises a fixed frame 1, bolts 2, an impeller 4, a nut 5, a flat gasket 6, a flat key 7, a mechanical seal 8, a pump body 9, a pump cover 10, a pump cover mounting rack 1001, a nut 17, a rotating rod 18, a motor 19 and a hanging ring 20.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below 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; for a better understanding of 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 parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate 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 device or element referred to 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 used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
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 either a fixed connection, a detachable connection, or an integral part; 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 meaning 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 utility model relates to a single suction centrifugal pump, including the pump body 9, pump body 9 left side is equipped with water inlet 901, and pump body 9 top is equipped with delivery port 902, and pump body 9 bottom plate is equipped with mount 1, and pump body 9 is inside to be equipped with impeller 4, is equipped with guiding gutter 401 on impeller 4, and 4 inboard of impeller are equipped with bull stick 18, and 18 right sides of bull stick are equipped with motor 19, and pump body 9 right side is equipped with pump cover 10, is equipped with a plurality of pump cover mounting brackets 1001 on the pump cover 10, and pump cover mounting bracket 1001 is connected with motor 19 left side, and motor 19 top is equipped with rings 20. Specifically, the pump body 9 and the pump cover 10 form an external structure of the whole pump, water flows into the pump body 9 from the water inlet 901, the water flows out of the pump body 9 from the water outlet 902, the fixing frame 1 provides an installation position for the pump body 9, the impeller 4 can provide kinetic energy for water, the water chute 401 can guide the flow direction of the water in the pump body, the vibration of the water in the pump body is reduced, the rotating rod 18 can connect the motor 19 and the impeller 4 together, the rotating rod 18 is short in axial size and compact in structure, the radial load and the axial load generated by the operation of the centrifugal pump can be effectively balanced, the stable operation of the centrifugal pump is ensured, the vibration noise is low, the pump cover mounting frame 1001 is used for connecting the pump cover 10 and the motor 19, the lifting ring 20 is arranged at the top of the motor 19, and the lifting ring 20 can be used for conveniently lifting the motor 19 in the installation process.
Example two:
this embodiment is as the further improvement of last embodiment, as shown in fig. 1-3, the utility model discloses a single suction centrifugal pump, including the pump body 9, pump body 9 left side is equipped with water inlet 901, and pump body 9 top is equipped with delivery port 902, and pump body 9 bottom plate is equipped with mount 1, and pump body 9 is inside to be equipped with impeller 4, is equipped with guiding gutter 401 on impeller 4, and 4 inboards of impeller are equipped with bull stick 18, and 18 right sides of bull stick are equipped with motor 19, and pump body 9 right side is equipped with pump cover 10, is equipped with a plurality of pump cover mounting brackets 1001 on the pump cover 10, and the pump cover mounting bracket is connected with motor 19 left side, and motor 19 top is equipped with rings 20. Specifically, the pump body 9 and the pump cover 10 form an external structure of the whole pump, water flows into the pump body 9 from the water inlet 901, the water flows out of the pump body 9 from the water outlet 902, the fixing frame 1 provides an installation position for the pump body 9, the impeller 4 can provide kinetic energy for water, the water chute 401 can guide the flow direction of the water in the pump body, the vibration of the water in the pump body is reduced, the rotating rod 18 can connect the motor 19 and the impeller 4 together, the rotating rod 18 is short in axial size and compact in structure, the radial load and the axial load generated by the operation of the centrifugal pump can be effectively balanced, the stable operation of the centrifugal pump is ensured, the vibration noise is low, the pump cover mounting frame 1001 is used for connecting the pump cover 10 and the motor 19, the lifting ring 20 is arranged at the top of the motor 19, and the lifting ring 20 can be used for conveniently lifting the motor 19 in the installation process.
The rotating rod 18 is provided with a flat key 7, the left end of the rotating rod 18 is provided with a screw cap 5, and a flat gasket 6 is arranged between the screw cap 5 and the impeller 4. Specifically, the flat key 7 can limit circumferential rotation with the impeller 4, the rotating rod 18 can drive the impeller 4 to rotate, the nut 5 can limit axial sliding of the impeller 4, the impeller 4 and the rotating rod 18 keep relatively static, and the flat pad 6 can prevent the nut 5 from loosening.
The pump cover 10 is provided with a mechanical seal 8 on the inner side. Specifically, the mechanical seal 8 prevents water in the centrifugal pump from flowing out of the pump cover 10 and the rotary rod 18.
A plurality of mounting through holes 903 are formed in the pump body 9, a plurality of bolts 2 are arranged on the pump body 9, and the pump body 9 is connected with the fixing frame 1 through the bolts 2. Specifically, the mounting through hole 903 is used for mounting and connecting a pipeline of the centrifugal pump, the pump body 9 is connected with the fixed frame 1 through the bolt 2, and the fixed frame 1 provides a mounting position for the pump body 9.
The water chutes 401 are uniformly distributed on the impeller 4, and the impeller 4 is connected with the rotating rod 18 through the screw cap 5. Specifically, the water guide channel 401 can guide the flow direction of water in the pump body, reduce the vibration of water in the pump body, and thus reduce noise.
The pump body 9 is connected with the pump cover 10 through the bolt 2, the pump cover mounting rack 1001 is connected with the left side of the motor 19 through the bolt 2 and the nut 17, and a gap exists between the pump cover 10 and the motor 19. Particularly, there is the space between pump cover 10 and the motor 19, when mechanical seal damaged, can prevent effectively that water from getting into in the middle of the motor along the direction of bull stick, avoids the motor to break down.
Compared with the first embodiment, in the second embodiment, the flat key 7 can limit circumferential rotation with the impeller 4, the rotating rod 18 can drive the impeller 4 to rotate, the screw cap 5 can limit axial sliding of the impeller 4, the impeller 4 and the rotating rod 18 are kept relatively static, the flat gasket 6 can prevent the screw cap 5 from loosening, the mechanical seal 8 can prevent water in the centrifugal pump from flowing out of the pump cover 10 and the rotating rod 18, the installation through hole 903 is used for installing and connecting a pipeline of the centrifugal pump, the pump body 9 is connected with the fixed frame 1 through the bolt 2, the fixed frame 1 provides an installation position for the pump body 9, the water guide groove 401 can guide the flow direction of water in the pump body, and vibration of the water in the pump body is reduced, thereby reducing noise, a gap exists between the pump cover 10 and the motor 19, and when the mechanical seal is broken, can prevent effectively that water from getting into the motor in the middle of along the direction of bull stick, avoid the motor to break down.
The use method of the device comprises the following steps: after installing centrifugal pump, open the motor, bull stick 18 drives impeller 4 and rotates, impeller 4 can supply water and provide kinetic energy, guiding gutter 401 on impeller 4 can guide the flow direction of water in the pump body, reduce the vibration of water in the pump body, thereby the noise abatement, water flows into the pump body 9 from water inlet 901, water flows out the pump body 9 from delivery port 902, there is the space between pump cover 10 and the motor 19, when mechanical seal damages, can prevent effectively that water from getting into in the middle of the motor along the direction of bull stick, avoid the motor to break down, if open the inside of centrifugal pump and inspect, can directly dismantle pump cover 10, just can see the inside of the pump body 9 clearly, and the easy access is examined.
The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics of the embodiments is not described herein, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements 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 (6)
1. A single suction centrifugal pump is characterized in that: including the pump body (9), the pump body (9) left side is equipped with water inlet (901), the pump body (9) top is equipped with delivery port (902), the pump body (9) bottom plate is equipped with mount (1), the inside impeller (4) that is equipped with of the pump body (9), be equipped with guiding gutter (401) on impeller (4), impeller (4) inboard is equipped with bull stick (18), bull stick (18) right side is equipped with motor (19), the pump body (9) right side is equipped with pump cover (10), be equipped with a plurality of pump cover mounting brackets (1001) on pump cover (10), pump cover mounting bracket (1001) are connected with motor (19) left side, motor (19) top is equipped with rings (20).
2. A single suction centrifugal pump as claimed in claim 1, wherein: the rotary rod (18) is provided with a flat key (7), the left end of the rotary rod (18) is provided with a screw cap (5), and a flat gasket (6) is arranged between the screw cap (5) and the impeller (4).
3. A single suction centrifugal pump as claimed in claim 2, wherein: and a mechanical seal (8) is arranged on the inner side of the pump cover (10).
4. A single suction centrifugal pump as claimed in claim 3, wherein: the pump is characterized in that a plurality of mounting through holes (903) are formed in the pump body (9), a plurality of bolts (2) are arranged on the pump body (9), and the pump body (9) is connected with the fixing frame (1) through the bolts (2).
5. A single suction centrifugal pump as set forth in claim 4, wherein: the water guide grooves (401) are uniformly distributed on the impeller (4), and the impeller (4) is connected with the rotating rod (18) through the screw cap (5).
6. A single suction centrifugal pump as set forth in claim 5, wherein: the pump body (9) is connected with the pump cover (10) through the bolt (2), the pump cover mounting frame (1001) is connected with the left side of the motor (19) through the bolt (2) and the nut (17), and a gap exists between the pump cover (10) and the motor (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120862510.5U CN214788037U (en) | 2021-04-25 | 2021-04-25 | Single suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120862510.5U CN214788037U (en) | 2021-04-25 | 2021-04-25 | Single suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788037U true CN214788037U (en) | 2021-11-19 |
Family
ID=78689397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120862510.5U Active CN214788037U (en) | 2021-04-25 | 2021-04-25 | Single suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214788037U (en) |
-
2021
- 2021-04-25 CN CN202120862510.5U patent/CN214788037U/en active Active
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