CN85201796U

CN85201796U - Fully sealed pipeline type relay pump

Info

Publication number: CN85201796U
Application number: CN 85201796
Authority: CN
Inventors: 陆明尧
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-05-02
Filing date: 1985-05-02
Publication date: 1986-09-03

Abstract

The utility model discloses a ' fully sealed pipeline type relay pump ', and belongs to a liquid delivering device. The utility model is characterized in that the pipeline is made of stainless steel; a motor stator is arranged at the outside of the pipeline; a rotor with an inner wring cage or an impeller is arranged in the pipeline. The liquid can be transported when a rotational magnetic field permeates the stainless steel pipeline to drive the rotor to run. The utility model has the advantages of simple structure, low cost, no leakage, convenient operation, and big power.

Description

Fully sealed pipeline type relay pump

The utility model relates to liquid transporting apparatus---pump

The pump of Shi Yonging all had motor and pump two partly in the past, relied on the axle transferring power, had motive sealing and external leakage problem between the rotating shaft and the pump housing.

In order to address the leakage concern, use a kind of magnetic drive pump at present.This pump drives permanent magnet with motor, and the stuffing box gland principle driving casing internal magnet that utilizes magnetic field energy to see through the special material composition rotates impeller again.Though solved leakage problem like this, had fatal shortcoming: the little energy dissipation of power is big, cost an arm and a leg, be difficult for being extensive use of.The another kind of pump that solves external leakage is a canned motorpump, and it adds the method for pump with shield electric machine, the same axle transferring power that relies on, and this shield electric machine structure is very complicated, and price is higher.

The utility model proposes a kind of leakage that both solved, simplified structure greatly again, fitting operation is convenient, the liquid conducting pipes pump that price is lower.

The principle that the utility model utilizes rotating magnetic field can see through materials such as stainless steel is made.It has one section separation sleeve (1) that forms with special stainless steel manufacturing " to see shown in the accompanying drawing ", directly the rotor (2) of motor and stator (3) are contained in then separation sleeve inside and outside.Rotor of the present invention (2) adopts " laminate patch rotary process " to make (concrete technology is seen " motor engineering handbook " the 20th piece of chapter 6).So form inner hauling cage or bladed structure in rotor center.Realized that rotor and impeller are integrated.

When stator (3) energising generation rotating magnetic field, rotating magnetic field sees through separation sleeve (1) and drives rotor (2) rotation.Because the center of rotor (2) is an inner hauling cage, continuously liquid is sucked from an end during rotation, release from the other end.Because stopping of separation sleeve (1) is transferred liquid and can not infiltrates stator (3), thereby guaranteed the proper functioning of " totally enclosed type pump ".

An embodiment of the present utility model as shown in drawings.Mainly by separation sleeve (1), rotor (2), before stator (3) and the separation sleeve, rear end cover is (promptly low, the high voltage terminal end cap), before the stator, rear flange shape end socket, bearing, seal ring, component such as pump case and pipe coupling are formed, wherein separation sleeve (1) is with permeability height such as stainless steel or permalloy, the school little material of stupid power is made, two ends at this separation sleeve are connected with end cap, constitute pipeline, the end cap that is its separation sleeve high voltage terminal (right-hand member) is affixed with welding method, to increase sealing reliability, the end cap of its low voltage terminal (left end) is affixed with the close-fitting method.Stator (3) is housed on the outer circumferential face of separation sleeve (1); The outer ring of stator (3) contacts with pump case; The two end cap of separation sleeve is connected, makes the space that stator (3) is installed between pump case and the separation sleeve to form a sealed space with pump case with bolt, and the liquid that then is transferred just can not infiltrate stator (3).The rotor (2) of packing in the endoporus of separation sleeve (1) and having inner hauling cage or impeller, and be cast with two hollow end sockets at two ends is equipped with bearing on the end socket, the outer ring of bearing and separation sleeve (1) be close-fitting mutually.Such structure makes the rotor (2) that has inner hauling cage or impeller make high speed rotating under the effect of the rotating magnetic field that stator (3) produces, thereby liquid is sent to high voltage terminal from low voltage terminal, and discharges the pump housing.For this pump can be joined smoothly with pipe-line system, can be furnished with pipe coupling in advance, it is fixed on the end cap at separation sleeve (1) two ends, and and bearing between be tightly connected.

Because the separation sleeve among the present invention (1) all is enclosed in rotatable parts in the pipeline, so there is not external leakage, and this utility model leather has gone many machine power transmission, so simple in structure, efficient improves, energy-conservation, material-saving material, save the material of carrying, do not account for the place and can directly be contained on the equipment or on the pipeline. Because the utility model adopts inner hauling cage to carry, so can big flow, high power ground transfer of highly viscous or with the liquid of particle.

Claims

1, a kind of fully enclosed pipeline type booster pump of being made up of pipe coupling, flange, end cap, separation sleeve, strand cage or impeller, rotor, stator and shell is characterized by:

A) rotor (2) and stator (3) directly are contained in the inside and outside of separation sleeve (1);

B) rotor (2) has the hollow end socket that inner hauling cage or impeller ， And and two ends are cast with the energy running in bearings;

C) on the end cap at separation sleeve (1) two ends, be furnished with between pipe coupling ， And and bearing and be tightly connected.

2, by the described booster pump of claim 1, the available stainless steel of the said separation sleeve of its feature (1) is made, also permeability height such as available permalloy, and the school little material of stupid power is made.