CN210397153U

CN210397153U - High-efficient single-stage centrifugal pump

Info

Publication number: CN210397153U
Application number: CN201921380642.3U
Authority: CN
Inventors: 黄卫宁
Original assignee: Kaiquan Group Co Ltd
Current assignee: Kaiquan Group Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-24
Anticipated expiration: 2029-08-23

Abstract

The utility model relates to a pump machine technical field just discloses a high-efficient single-stage centrifugal pump, including the pump machine body, the bottom fixed mounting of pump machine body has the base, fixed column and reset spring are installed to fixed surface on the bottom of base, the fixed column is located reset spring's inner chamber, and the other end and the base top fixed connection of fixed column, the fixed plate has been cup jointed in the outer wall activity of fixed column, the last fixed surface of fixed plate installs driving motor, driving motor's left side fixedly connected with spliced pole, the right side fixed mounting of base upper surface has the connecting piece. The utility model discloses an internally mounted has the sensor and has seted up the pressure boost mouth, installs the door of opening and shutting at the inner chamber of pressure boost mouth, and through this group's structure, the device can be when its pump machine uses, and its pressure value does not reach the requirement and carries out automatic closure to it, reduces the entering of air, and then its inside air receives to dilute its pressure value and can progressively increase, and then promotes its application range.

Description

High-efficient single-stage centrifugal pump

Technical Field

The utility model relates to a pump machine technical field specifically is a high-efficient single-stage centrifugal pump.

Background

The single-stage centrifugal pump comprises a pump body, a pump cover and a motor with an output shaft, wherein a pump shaft, a bearing seat, an impeller, a mechanical seal and a mechanical seal gland are arranged in the pump body and are connected with the motor through a lengthened elastic coupling; the clamp type coupling is respectively and rigidly connected with the output shaft of the motor and the pump shaft, a space distance which is convenient for assembling and disassembling the mechanical seal and the mechanical seal gland is reserved between the output shaft of the motor and the pump shaft, and the motor and the pump cover do not need to be disassembled when the mechanical seal is maintained or replaced.

The existing single-stage centrifugal pump is often not capable of reaching a good use range due to the fact that the pressure value of the existing single-stage centrifugal pump is too small in the use process, so that the use of the existing single-stage centrifugal pump causes great limitation, the existing equipment is large in size, noise generated by the existing single-stage centrifugal pump is also large when the existing single-stage centrifugal pump is used, the vibration frequency of the existing single-stage centrifugal pump is high, and the internal damage of a pump machine can be caused when the existing single-stage centrifugal pump is used for a long time, so that the.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a high-efficient single-stage centrifugal pump, possess adjustable its pressure value, better shock attenuation effect has, make its life extension, the pollution's of noise advantage has also been reduced simultaneously, solved current single-stage centrifugal pump often in the use because its pressure value undersize and then lead to it not to reach better application range, make its use cause great limitation, and current equipment is because its volume is great, the noise that it produced when using is also great, the frequency of its vibrations is higher, and the problem that can cause the inside damage of pump machine when using for a long time.

The utility model provides a following technical scheme: a high-efficiency single-stage centrifugal pump comprises a pump body, wherein a base is fixedly arranged at the bottom of the pump body, a fixed column and a reset spring are fixedly arranged on the upper surface of the bottom of the base, the fixed column is positioned in an inner cavity of the reset spring, the other end of the fixed column is fixedly connected with the top of the base, a fixed plate is movably sleeved on the outer wall of the fixed column, a driving motor is fixedly arranged on the upper surface of the fixed plate, a connecting column is fixedly connected to the left side of the driving motor, a connecting piece is fixedly arranged on the right side of the upper surface of the base, one end of the connecting column penetrates through the outer wall of the connecting piece and extends into the connecting piece, a pump box is fixedly arranged on the left side of the connecting piece, a fixing bolt is fixedly arranged at the bottom of the connecting piece, the connecting, the water inlet has been seted up in the left side of pump box, the pressure boost mouth has been seted up to the upper surface of pump box, the inner chamber fixed mounting of pressure boost mouth has the door of opening and closing, the inner chamber fixed mounting of connecting piece has the connecting axle, the other end of connecting axle runs through the outer wall of connecting piece and pump box and extends to the inside of pump box, the other end fixed mounting of connecting axle has the impeller nut, the top fixed mounting of pump box inner chamber has the sensor, the middle part fixed mounting of pump box inner chamber has footstep bearing, footstep bearing and connecting axle are fixed cup joints.

Preferably, the number of the reset springs is three, the number of the fixed columns is two, two fixed columns are located inside the reset springs on two sides, and the distance between the three reset springs is equal.

Preferably, the number of the fixing bolts outside the pump box is six, the fixing bolts are located on two sides of the pump box in decibels, and the distance between the six fixing bolts is equal.

Preferably, the opening and closing door is fixedly connected through a rotating shaft, and the diameter value of the opening and closing door is smaller than that of the pressurization port.

Preferably, the mechanical sealing element is fixedly installed on the left side of the inner cavity of the pump box, and the mechanical sealing element is located on the left side of the impeller nut.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this high-efficient single-stage centrifugal pump has the sensor and has seted up the pressure boost mouth through internally mounted, installs the door of opening and shutting at the inner chamber of pressure boost mouth, and through this group's structure, the device can be when its pump machine uses, and its pressure value can not reach the requirement and carry out automatic closure to it, reduces the entering of air, and then its inside air receives and dilutes its pressure value and can progressively increase, and then promotes its application range.

2. This high-efficient single-stage centrifugal pump, through the organizational structure who utilizes fixed plate, reset spring and fixed column, the device can carry out the shock attenuation to equipment at the during operation, and then prevents equipment because the equipment internal damage that leads to is too hard in its bottom of long-time use, has also reduced the noise of its during operation simultaneously.

Drawings

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

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is the internal schematic view of the structure working area of the present invention.

In the figure: 1. a pump body; 2. a drive motor; 3. a base; 4. a water inlet; 5. a pump box; 6. a pressurizing port; 7. fixing the bolt; 8. a connecting member; 9. connecting columns; 10. a fixing plate; 11. a return spring; 12. fixing a column; 13. an impeller nut; 14. opening and closing the door; 15. a sensor; 16. a thrust bearing; 17. and (7) connecting the shafts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a high-efficiency single-stage centrifugal pump comprises a pump body 1, a base 3 is fixedly installed at the bottom of the pump body 1, fixed columns 12 and return springs 11 are fixedly installed on the upper surface of the bottom of the base 3, the number of the return springs 11 is three, the number of the fixed columns 12 is two, two fixed columns 12 are respectively positioned inside the return springs 11 at two sides, the space between the three return springs 11 is equal, the fixed columns 12 are positioned in the inner cavities of the return springs 11, and the other ends of the fixed columns 12 are fixedly connected with the top of the base 3, the device can absorb shock when the equipment works, further prevent the internal damage of the equipment caused by the over-hard bottom of the equipment after long-time use, and simultaneously reduce the noise when the equipment works, a fixed plate 10 is movably sleeved on the outer wall of the fixed columns 12, and a driving motor 2, the left side of the driving motor 2 is fixedly connected with a connecting column 9, the right side of the upper surface of the base 3 is fixedly provided with a connecting piece 8, one end of the connecting column 9 penetrates through the outer wall of the connecting piece 8 and extends into the connecting piece 8, the left side of the connecting piece 8 is fixedly provided with a pump box 5, the left side of the inner cavity of the pump box 5 is fixedly provided with a mechanical sealing piece, the mechanical sealing piece is used for sealing equipment and preventing the water flow of the equipment from entering the equipment to damage the equipment when the equipment works, the mechanical sealing piece is positioned on the left side of an impeller nut 13, six fixing bolts 7 are arranged on the outer part of the pump box 5, the device is used for fixing the equipment and preventing the equipment from falling off to cause abnormal work, the six fixing bolts 7 decibels are positioned on the two sides of the pump box 5, the intervals among the six fixing bolts 7 are equal, the bottom of the, the outer wall of the pump box 5 is fixedly provided with a plurality of fixing bolts 7, the left side of the pump box 5 is provided with a water inlet 4, the upper surface of the pump box 5 is provided with a pressurizing opening 6, the inner cavity of the pressurizing opening 6 is fixedly provided with an opening and closing door 14, the opening and closing door 14 is fixedly connected through a rotating shaft, when the device is used by a pump machine, the pressure value of the device can be automatically closed if the pressure value does not meet the requirement, the air is reduced, the pressure value of the air in the device is gradually increased by dilution, the use range of the device is further improved, the diameter value of the opening and closing door 14 is smaller than that of the pressurizing opening 6, the inner cavity of the connecting part 8 is fixedly provided with a connecting shaft 17, the other end of the connecting shaft 17 penetrates through the outer wall of the connecting part 8 and the pump box 5 and extends to the inside of the pump box 5, the other end of the connecting shaft 17 is fixedly provided, the thrust bearing 16 is fixedly sleeved with the connecting shaft 17.

The working principle is that before starting, the pump shell and the suction pipeline are filled with liquid from the water inlet 4, when the connecting shaft 17 rotates rapidly, the liquid in the impeller rotates along with the impeller under the push of the blades in the impeller, so that the liquid is subjected to centrifugal force, moves outward from the center of the opening and closing door 14 along the vane flow path, and then is thrown off the end of the vane into a volute or diffuser within the pump casing, where, as the liquid flows to the diffuser, because the cross-sectional area of the liquid flow is gradually enlarged and the flow speed is reduced, a part of kinetic energy is converted into a static energy head, the pressure is increased, and finally the static energy head is pressed out from the discharge pipe, since the liquid is thrown out at the center of the open/close door 14 to generate a partial vacuum, the liquid in the liquid suction pool is continuously sucked into the pump from the suction pipe under the action of the liquid level pressure, the open/close door 14 continuously rotates to continuously convey the liquid from the liquid suction pool to the head tank or the pressure container.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient single-stage centrifugal pump, includes pump machine body (1), its characterized in that: the pump machine is characterized in that a base (3) is fixedly mounted at the bottom of a pump machine body (1), a fixed column (12) and a reset spring (11) are fixedly mounted on the upper surface of the bottom of the base (3), the fixed column (12) is located in an inner cavity of the reset spring (11), the other end of the fixed column (12) is fixedly connected with the top of the base (3), a fixed plate (10) is movably sleeved on the outer wall of the fixed column (12), a driving motor (2) is fixedly mounted on the upper surface of the fixed plate (10), a connecting column (9) is fixedly connected to the left side of the driving motor (2), a connecting piece (8) is fixedly mounted on the right side of the upper surface of the base (3), one end of the connecting column (9) penetrates through the outer wall of the connecting piece (8) and extends into the connecting piece (8), a pump box (5) is fixedly mounted on the left side of the connecting piece (, the connecting piece (8) is fixedly connected with the base (3) through a fixing bolt (7), a plurality of fixing bolts (7) are fixedly arranged on the outer wall of the pump box (5), a water inlet (4) is formed in the left side of the pump box (5), the upper surface of the pump box (5) is provided with a pressurizing opening (6), the inner cavity of the pressurizing opening (6) is fixedly provided with an opening and closing door (14), a connecting shaft (17) is fixedly arranged in the inner cavity of the connecting piece (8), the other end of the connecting shaft (17) penetrates through the outer walls of the connecting piece (8) and the pump box (5) and extends to the inside of the pump box (5), the other end of the connecting shaft (17) is fixedly provided with an impeller nut (13), the top fixed mounting in pump box (5) inner chamber has sensor (15), the middle part fixed mounting in pump box (5) inner chamber has footstep bearing (16), footstep bearing (16) and connecting axle (17) fixed socket joint.

2. A high efficiency single stage centrifugal pump as set forth in claim 1, wherein: the number of the reset springs (11) is three, the number of the fixed columns (12) is two, the two fixed columns (12) are located inside the reset springs (11) on two sides in decibels, and the three reset springs (11) are equal in distance.

3. A high efficiency single stage centrifugal pump as set forth in claim 1, wherein: the fixed bolts (7) outside the pump box (5) are six, the decibels of the fixed bolts (7) are located on two sides of the pump box (5), and the distance between the six fixed bolts (7) is equal.

4. A high efficiency single stage centrifugal pump as set forth in claim 1, wherein: the opening and closing door (14) is fixedly connected through a rotating shaft, and the diameter value of the opening and closing door (14) is smaller than that of the pressurizing opening (6).

5. A high efficiency single stage centrifugal pump as set forth in claim 1, wherein: and a mechanical sealing element is fixedly arranged on the left side of the inner cavity of the pump box (5), and the mechanical sealing element is positioned on the left side of the impeller nut (13).