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CN-224228937-U - Novel be applied to closed impeller of sediment thick liquid class medium

CN224228937UCN 224228937 UCN224228937 UCN 224228937UCN-224228937-U

Abstract

The utility model relates to the technical field of closed impellers, in particular to a novel closed impeller applied to slurry mediums, which comprises a slurry medium pump assembly, an impeller assembly, a coupler, a motor and a pump pipe, wherein the impeller assembly is arranged on the outer side of the pump assembly; the device comprises a slag slurry medium pump assembly, a motor, a pump pipe, a coupling, a motor, a pump pipe and a pump pipe, wherein the impeller assembly is arranged in the slag slurry medium pump assembly, the coupling is arranged at the upper end of the slag slurry medium pump assembly, the motor is arranged at the upper end of the coupling, and the pump pipe is connected with the output end of the slag slurry medium pump assembly. The utility model realizes the switching between the open mode and the closed mode of the closed impeller by the disassembly and assembly of the impeller rear cover plate and the impeller front cover plate.

Inventors

  • LIANG JIAXING
  • Dong Songqi
  • LI DANQING
  • DU LIAN
  • GUO DONGNING
  • Du Xuanyin

Assignees

  • 大连双龙泵业集团有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (7)

  1. 1. The novel closed impeller applied to the slurry medium comprises a slurry medium pump assembly (1) and is characterized by further comprising an impeller assembly (2), a coupler (3), a motor (4) and a pump pipe (5), wherein the impeller assembly (2) is arranged in the slurry medium pump assembly (1), the coupler (3) is arranged at the upper end of the slurry medium pump assembly (1), the motor (4) is arranged at the upper end of the coupler (3), the pump pipe (5) is arranged at one side of the slurry medium pump assembly (1), the pump pipe (5) is connected with the output end of the slurry medium pump assembly (1), the slurry medium pump assembly (1) comprises a pump body (101), a pump cover (102), a transmission connecting key (103) and an impeller nut (104), and the impeller assembly (2) comprises a closed impeller (201), an impeller rear cover plate (202), an impeller front cover plate (203) and a set screw (204).
  2. 2. The novel closed impeller applied to the slurry medium is characterized in that a pump cover (102) is arranged at the upper end of a pump body (101), the pump cover (102) is connected with the pump body (101) in a sealing mode through bolts, a transmission connecting key (103) is arranged in the pump cover (102), a closed impeller (201) is arranged at the lower end of the transmission connecting key (103), and the closed impeller (201) is fixedly connected with the transmission connecting key (103).
  3. 3. The novel closed impeller applied to the slurry medium according to claim 2, wherein an impeller back cover plate (202) is arranged at the upper end of the closed impeller (201), and the impeller back cover plate (202) is connected with the closed impeller (201) in a splicing mode.
  4. 4. The novel closed impeller applied to the slurry medium according to claim 2, wherein an impeller front cover plate (203) is arranged at the lower end of the closed impeller (201), and the impeller front cover plate (203) is connected with the closed impeller (201) in a splicing manner.
  5. 5. The novel closed impeller applied to slurry mediums according to claim 3, wherein set screws (204) are arranged among the impeller back cover plate (202), the impeller front cover plate (203) and the closed impeller (201), and the impeller back cover plate (202), the impeller front cover plate (203) and the closed impeller (201) are in locking connection through the set screws (204).
  6. 6. The novel closed impeller applied to the slurry medium according to claim 2, wherein an impeller nut (104) is arranged at the lower end of the closed impeller (201), and the closed impeller (201) and the transmission connecting key (103) are fixedly connected together through threads by the impeller nut (104).
  7. 7. The novel closed impeller applied to the slurry medium according to claim 1, wherein the motor (4) drives the impeller assembly (2) to rotate and connect through the coupler (3).

Description

Novel be applied to closed impeller of sediment thick liquid class medium Technical Field The utility model relates to the technical field of closed impellers, in particular to a novel closed impeller applied to slurry mediums. Background The traditional closed impeller has a certain limitation in dealing with slurry mediums, and is composed of a front cover plate, a rear cover plate and blades, the structure can improve the efficiency and the lift of a pump to a certain extent, but also makes an inner flow passage of the impeller relatively complex, solid particles are easy to accumulate in the flow passage when slurry is conveyed, so that blockage and abrasion are aggravated, and the structure design of the closed impeller makes the closed impeller difficult to be refitted into an open impeller. Because can not repacking, when facing different operating mode demands, the enterprise can only redesign and make new impeller, this has certainly increased manufacturing cost by a wide margin, from material purchase, processing manufacture to assembly debugging, every link all needs to throw in a large amount of manpower, material resources and financial resources, simultaneously, closed impeller is also difficult heavy in the aspect of maintaining, once break down, because its structure is complicated, the maintainer needs to spend more time and energy and dismantle, inspect and repair, not only prolonged the down time of equipment, still increased maintenance cost, seriously influence the production efficiency and the economic benefits of enterprise. Disclosure of utility model In order to solve the problems of high production cost and difficult maintenance caused by the fact that the existing closed impeller cannot be modified into an open impeller, the utility model provides a novel closed impeller applied to slurry mediums. The technical scheme is that the novel closed impeller applied to the slurry medium comprises a slurry medium pump assembly, and further comprises an impeller assembly, a coupler, a motor and a pump pipe, wherein the impeller assembly is arranged in the slurry medium pump assembly, the coupler is arranged at the upper end of the slurry medium pump assembly, the motor is arranged at the upper end of the coupler, the pump pipe is arranged at one side of the slurry medium pump assembly and is connected with the output end of the slurry medium pump assembly, the slurry medium pump assembly comprises a pump body, a pump cover, a transmission connection key and an impeller nut, and the impeller assembly comprises a closed impeller, an impeller back cover plate, an impeller front cover plate and a set screw. Further, a pump cover is arranged at the upper end of the pump body and is in sealing connection with the pump body through bolts, a transmission connecting key is arranged in the pump cover, a closed impeller is arranged at the lower end of the transmission connecting key, and the closed impeller is fixedly connected with the transmission connecting key. Further, an impeller back cover plate is arranged at the upper end of the closed impeller, and the impeller back cover plate is connected with the closed impeller in a spliced mode. Further, an impeller front cover plate is arranged at the lower end of the closed impeller, and the impeller front cover plate is connected with the closed impeller in a spliced mode. Further, set screws are arranged among the impeller back cover plate, the impeller front cover plate and the closed impeller, and the impeller back cover plate, the impeller front cover plate and the closed impeller are in locking connection through the set screws. Further, the lower end of the closed impeller is provided with an impeller nut, and the closed impeller is fixedly connected with the transmission connecting key through threads by the impeller nut. Further, the motor drives the impeller assembly to rotate through the coupler. The closed impeller has the beneficial effects that the impeller rear cover plate and the impeller front cover plate at the upper end and the lower end of the closed impeller are locked by the set screws, the open impeller modification can be realized after the impeller rear cover plate and the impeller front cover plate are disassembled, the application scene of equipment is greatly improved, the maintenance cost is reduced, the advantages of the closed impeller and the open impeller are further realized, the front cover plate and the rear cover plate are not arranged, the blades are directly exposed in fluid, the flow passage is wide, the fluid containing solid particles, fibers or other impurities has better trafficability, and the blocking phenomenon is not easy to occur. Because the impeller structure is comparatively open, when equipment maintenance, operations such as to inspection, washing and change of impeller are gone on relatively easily, can reduce cost of maintenance and down time, the closed impeller has front and back apron, and th