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CN-224228878-U - Spiral casing type water pump adopting double-output-shaft motor

CN224228878UCN 224228878 UCN224228878 UCN 224228878UCN-224228878-U

Abstract

The utility model provides a volute type water pump adopting a motor with double output shafts, and belongs to the technical field of water pump appliances. The axial force load of the motor shaft is larger. This spiral case formula water pump that adopts two output shaft motors includes centrifugal pump body and motor, be provided with the sealed chamber that is used for supplying the motor to hold in the centrifugal pump body, the motor is provided with first output shaft and second output shaft, first output shaft and second output shaft opposite direction, the centrifugal pump body is provided with the water inlet, the delivery port, first impeller group and second impeller group, first impeller group sets up on first output shaft, second impeller group sets up on the second output shaft, first impeller group is used for leading the liquid of water inlet department to the second impeller group, second impeller group is used for leading the liquid from first impeller group to the delivery port. The utility model has the advantages of solving the axial force problem of the output shaft of the water pump motor and the like.

Inventors

  • CHEN DIANJUN
  • JIANG CHENG
  • CHEN YIWEN
  • WU PEIXIANG

Assignees

  • 浙江泰福泵业股份有限公司

Dates

Publication Date
20260512
Application Date
20250206

Claims (7)

  1. 1. The utility model provides an adopt spiral case formula water pump of two output shafts motor, its characterized in that includes centrifugal pump body (1) and motor (2), be provided with in centrifugal pump body (1) and be used for supplying sealed chamber (3) that motor (2) held, motor (2) are provided with first output shaft (4) and second output shaft (5), first output shaft (4) and second output shaft (5) opposite in direction, centrifugal pump body (1) are provided with water inlet (6), delivery port (7), first impeller set (8) and second impeller set (9), first impeller set (8) set up in on first output shaft (4), second impeller set (9) set up in on the second output shaft (), first impeller set (8) are used for guiding the liquid of water inlet (6) department to second impeller set (9), second impeller set (9) are used for guiding the liquid from first impeller set (8) to delivery port (7), first impeller set (8) and second impeller set (9) are provided with first impeller set (8) and second impeller set (8) are provided with, when first impeller set (8) and second impeller set up (8) adopt impeller set (10), when the first impeller set (8) and the second impeller set (9) are both provided with at least two impellers, a plurality of impellers of the first impeller set (8) are all guide vane impellers (10), and the second impeller set (9) comprises a volute impeller (11) and at least one guide vane impeller (10).
  2. 2. The volute type water pump adopting the double-output shaft motor according to claim 1, wherein the volute type impeller (11) is arranged at one end close to the sealing cavity (3), and the cutting surface of the volute type impeller (11) is in a spiral involute shape.
  3. 3. A volute type water pump using a dual output shaft motor according to claim 1, wherein the centrifugal pump body (1) comprises a first pump cover (12), a second pump cover (13), a first pump casing (14) and a second pump casing (15), the first pump cover (12) is used for sealing the first pump casing (14), the second pump cover (13) is used for sealing the second pump casing (15), the first pump casing (14) is used for mounting a motor (2) and a first impeller set (8), and the second pump casing (15) is used for mounting a second impeller set.
  4. 4. A volute type water pump using a double output shaft motor according to claim 3, wherein the water inlet (6) is provided on the first pump cover (12), the water outlet (7) is provided on the side wall of the second pump casing (15), and the water outlet (7) is located near one end of the first pump casing (14).
  5. 5. A volute type water pump adopting a double-output-shaft motor according to claim 3, wherein a first water flowing channel (16) is formed between the sealing cavity (3) and the first pump shell (14), a plurality of connecting columns (18) are arranged in the first water flowing channel (16), the second impeller set (9) is matched with the second pump shell (15) and the second pump cover (13) together to form a second water flowing channel (17), the first water flowing channel (16) is communicated with the second water flowing channel (17), the first water flowing channel (16) is used for flowing liquid positioned in the first impeller set (8) to the second water flowing channel (17), and the second water flowing channel (17) is used for flowing water to the second impeller set (9).
  6. 6. A volute type water pump employing a double output shaft motor according to claim 5, wherein the second pump casing (15) is provided with a support block (19) for supporting the second impeller set (9), the support block (19) is provided with a plurality of through holes (20), and the through holes (20) are used for communicating the first water flow channel (16) and the second water flow channel (17).
  7. 7. The volute type water pump adopting the double-output shaft motor according to claim 6, wherein the supporting block (19) is further provided with a communication pipeline (21), and the communication pipeline (21) is used for communicating the second impeller set (9) and the water outlet (7).

Description

Spiral casing type water pump adopting double-output-shaft motor Technical Field The utility model belongs to the technical field of water pump appliances, and particularly relates to a volute type water pump adopting a motor with double output shafts. Background Centrifugal pumps deliver liquids by centrifugal force generated by rotation of impellers, and are suitable for various fluid delivery requirements. The single-stage centrifugal pump has a simple structure and is suitable for low-lift occasions, and the multistage centrifugal pump can realize high lift and large flow through the serial connection of a plurality of impellers, simultaneously maintain high efficiency and wide operation range, has compact multistage design and strong adaptability, and is widely applied to occasions such as high-rise water supply, industrial processes, fire-fighting systems and the like. Axial force is an important research subject to be solved in the field of centrifugal pumps, and unbalance of the axial force can cause serious consequences such as increased abrasion of bearings, so that normal operation of the pump is affected. In operation, the pump exerts an axial force on the rotor that pulls the rotor axially, and therefore must be managed to cancel or balance this axial force to enable the pump to function properly. Disclosure of utility model The utility model aims to solve the problems in the prior art and provides a volute type water pump adopting a motor with double output shafts. The utility model discloses a volute type water pump adopting a double-output-shaft motor, which comprises a centrifugal pump body and a motor, wherein a sealing cavity for accommodating the motor is formed in the centrifugal pump body, the motor is provided with a first output shaft and a second output shaft, the directions of the first output shaft and the second output shaft are opposite, the centrifugal pump body is provided with a water inlet, a water outlet, a first impeller set and a second impeller set, the first impeller set is arranged on the first output shaft, the second impeller set is arranged on the second output shaft, the first impeller set is used for guiding liquid at the water inlet to the second impeller set, and the second impeller set is used for guiding the liquid from the first impeller set to the water outlet. The utility model adopts a double-shaft motor, and sets opposite impeller groups on a first output shaft and a second output shaft, thereby counteracting axial force, simultaneously playing a supercharging effect, reducing the length of a single motor output shaft and reducing the pressure of the motor output shaft. In the above volute type water pump adopting the motor with double output shafts, the first impeller set and the second impeller set are both provided with at least one impeller. In the above spiral case formula water pump that adopts two output shaft motors, when first impeller group and second impeller group all are provided with an impeller, the impeller of first impeller group adopts the stator formula impeller, the second impeller group adopts spiral case formula impeller, when first impeller group and second impeller group all are provided with two at least impellers, a plurality of impellers of first impeller group all adopt stator formula impeller, the second impeller group includes a spiral case formula impeller and at least one stator formula impeller. In the above spiral case type water pump adopting the double output shaft motor, the spiral case type impeller is arranged at one end close to the sealing cavity, and the section shape of the spiral case type impeller is spiral involute. In the volute type water pump adopting the double-output-shaft motor, the centrifugal pump body comprises a first pump cover, a second pump cover, a first pump shell and a second pump shell, wherein the first pump cover is used for sealing the first pump shell, the second pump cover is used for sealing the second pump shell, the first pump shell is used for installing a motor and a first impeller set, and the second pump shell is used for installing a second impeller set. In the volute type water pump adopting the double-output shaft motor, the water inlet is arranged on the first pump cover, the water outlet is arranged on the side wall of the second pump shell, and the water outlet is positioned near one end of the first pump shell. In the above volute type water pump adopting the motor with double output shafts, a first running water channel is formed between the sealing cavity and the first pump shell, a plurality of connecting columns are arranged in the first running water channel, and the second vane The wheel set, the second pump shell and the second pump cover are matched together to form a second flow channel, the first flow channel is communicated with the second flow channel, the first flow channel is used for enabling liquid located in the first impeller set to flow to the second flow