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CN-117212181-B - Long-life slurry pump convenient to installation

CN117212181BCN 117212181 BCN117212181 BCN 117212181BCN-117212181-B

Abstract

The invention provides a long-life slurry pump convenient to install, which belongs to the technical field of slurry equipment and comprises a bracket, a driving assembly, a sheath, a cover body and a liquid inlet pipe. The turning direction of the impeller is set to be the first direction. The sheath is arranged on the bracket, the sheath is sleeved on the outer side of the impeller, the outer end face of the sheath is used for being communicated with the liquid inlet pipe, the sheath is provided with a liquid outlet used for discharging liquid, a plurality of flow ports penetrate through the sheath along the circumferential direction of the sheath, and the axes of the flow ports deflect towards the first direction. The cover body is fixed in the outside of sheath, and the communicating chamber with a plurality of mouth intercommunication is formed to cover body inner wall and sheath outer wall. The liquid inlet pipe is arranged on the cover body and communicated with the communicating cavity for inputting medium with certain pressure into the communicating cavity. The medium discharged from the flow port is contacted with the liquid after the impeller is disturbed to reduce the flushing of the sheath. The long-life slurry pump convenient to install provided by the invention can not cause the problem that the sheath is continuously washed at high speed, so that the structure is simplified, and the service life of the slurry pump is ensured.

Inventors

  • HUANG WEI
  • HAO CHAOCHAO
  • LI XUEYING
  • Ma xingda
  • REN MINGYU

Assignees

  • 河北技投机械设备有限公司

Dates

Publication Date
20260508
Application Date
20231013

Claims (8)

  1. 1. Long-life sediment stuff pump convenient to installation, its characterized in that includes: A bracket; the driving assembly is arranged on the bracket and comprises a rotating shaft and an impeller arranged on the rotating shaft, wherein the steering direction of the impeller is set to be a first direction; The device comprises a bracket, a sheath, a liquid inlet pipe, a liquid outlet, a plurality of flow ports, a plurality of air inlet pipes, a plurality of air outlet pipes and a plurality of air outlet pipes, wherein the sheath is arranged on the bracket and sleeved on the outer side of the impeller; the cover body is fixed on the outer side of the sheath, and a communication cavity communicated with a plurality of flow ports is formed between the inner wall of the cover body and the outer wall of the sheath; the liquid inlet pipe is arranged on the cover body and communicated with the communication cavity for inputting a medium with a certain pressure into the communication cavity; the medium discharged by the flow port is contacted with the liquid disturbed by the impeller to reduce the flushing of the sheath; the density of the flow port on the unit area of the sheath is gradually decreased along the first direction, and the included angle between the axis of the flow port and the warp of the sheath is an acute angle; The flow port is internally provided with a turbulence block, the turbulence block is positioned at one side of the flow port, which is close to the first direction, and the turbulence block is used for adjusting the flowing direction of the medium.
  2. 2. The long life slurry pump of claim 1, wherein a nozzle is mounted in said flow port for increasing the pressure of the discharged medium.
  3. 3. The long life slurry pump of claim 2 wherein said spoilers are secured to corresponding said spray heads.
  4. 4. A long life slurry pump for facilitating installation as claimed in claim 3, wherein said spoiler extends from said nozzle toward said jacket cavity.
  5. 5. The long life slurry pump of claim 4, wherein said turbulence block is hinged to said inner wall of said flow port, said nozzle is slidably disposed in said flow port, and said nozzle is adapted to press said turbulence block with the aid of a medium discharged from said liquid inlet pipe for changing the swing angle of said turbulence block.
  6. 6. The long life slurry pump of claim 1, wherein said liquid inlet tube is hermetically connected to said cover, said liquid inlet tube being adapted to inject liquid or gas into said communication chamber.
  7. 7. The easy to install long life slurry pump of claim 1 wherein said cover is removably attached to said jacket.
  8. 8. The long life slurry pump of claim 1, wherein said feed pipe is connected to a pressure pump, said pressure pump being connected to said feed pipe via a branch pipe.

Description

Long-life slurry pump convenient to installation Technical Field The invention belongs to the technical field of slurry equipment, and particularly relates to a long-service-life slurry pump convenient to install. Background The slurry pump is a device for converting electric energy into kinetic energy and potential energy of liquid by a machine which increases the energy of a liquid mixture by the rotation action of an impeller, and is mainly applicable to the industries of mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like. The solid erosive wear widely exists in the engineering fields of metallurgy, environmental protection, chemical industry, civil engineering, dredging, agriculture and the like, causes the problems of material loss of working parts, mechanical efficiency reduction, service life shortening and the like, and brings great loss to production. Because the medium conveyed by the slurry pump is mainly solid-liquid two-phase flow slurry with higher solid phase substance content, the material abrasion of the overflow part is mainly due to the accumulated effect of solid particles with quite hardness in the working medium on the impact damage action of the part surface, the damage to the working part is caused, and the normal work of the slurry pump is seriously influenced. In the integral structure of the slurry pump, the liquid disturbed by the rotation of the impeller directly washes the sheath, so that the material with higher structural strength and wear resistance is required to be selected during design and installation in order to ensure the service life and stability of the sheath, the purchase cost of the material is increased, and more importantly, the sheath is washed for a long time, so that the service life of the whole slurry pump is reduced. Disclosure of Invention The invention aims to provide a long-life slurry pump convenient to install, and aims to solve the problem that the service life of the whole slurry pump is reduced due to the fact that a sheath is washed for a long time. In order to achieve the above purpose, the invention adopts the technical scheme that the long-life slurry pump convenient to install is provided, and the long-life slurry pump comprises: A bracket; the driving assembly is arranged on the bracket and comprises a rotating shaft and an impeller arranged on the rotating shaft, wherein the steering direction of the impeller is set to be a first direction; The device comprises a bracket, a sheath, a liquid inlet pipe, a liquid outlet, a plurality of flow ports, a plurality of air inlet pipes, a plurality of air outlet pipes and a plurality of air outlet pipes, wherein the sheath is arranged on the bracket and sleeved on the outer side of the impeller; the cover body is fixed on the outer side of the sheath, and a communication cavity communicated with a plurality of flow ports is formed between the inner wall of the cover body and the outer wall of the sheath; the liquid inlet pipe is arranged on the cover body and communicated with the communication cavity for inputting a medium with a certain pressure into the communication cavity; And the medium discharged by the flow port is contacted with the liquid disturbed by the impeller to reduce the flushing of the sheath. In one possible implementation, the density of the flow openings per unit area of the sheath decreases in the first direction, and the axis of the flow openings forms an acute angle with the meridian line of the sheath. In one possible implementation manner, a spoiler is disposed in the flow port, the spoiler is located on one side of the flow port, which is close to the first direction, and the spoiler is used for adjusting the direction of the medium flow. In one possible embodiment, a spray head is installed in the flow opening, which spray head serves to increase the pressure at which the medium is discharged. In one possible implementation, the spoiler is fixed to the corresponding nozzle. In one possible implementation, the spoiler extends from the nozzle toward the jacket cavity. In one possible implementation manner, the spoiler is hinged on the inner wall of the flow port, the spray head is arranged in the flow port in a sliding manner, and the spray head presses the spoiler by means of a medium discharged from the liquid inlet pipe to change the swinging angle of the spoiler. In one possible implementation manner, the liquid inlet pipe is connected to the cover body in a sealing manner, and the liquid inlet pipe is used for injecting liquid or gas into the communication cavity. In one possible implementation, the cover is detachably connected to the sheath. In one possible implementation, a pressure pump is communicated with the liquid inlet pipe, and the pressure pump is communicated with the liquid inlet pipe through a branch pipe. Compared with the prior art, the long-life slurry pump convenient to install has the advantages th