CN2500841Y

CN2500841Y - Displacement rotory liquid delivering pump

Info

Publication number: CN2500841Y
Application number: CN 01262730
Authority: CN
Inventors: 谢祖焯
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-11
Filing date: 2001-09-11
Publication date: 2002-07-17
Anticipated expiration: 2011-09-11

Abstract

The utility model relates to a pump. The utility model is characterized in that: including an external shell, an inner sleeve, an isolating plate, a rotor and a wing plate; The inner sleeve is arranged at the cylindrical external sleeve to form four shaft direction control room, and the rotor of the wing plate is arranged in the inner sleeve to make a four liquid area. The utility model takes advantages of high pump lift and large flowing rate with a not close relationship between the height of the pump life and the length of the pump body shaft direction on the equal length and diameter conditions, compared with the former axial flow vane pump. The pump also has advantages of reasonable design, simple structure, small volume, low producing cost and low maintenance cost.

Description

Positive displacement rotor infusion pump

The utility model relates to a kind of pump.

China's deep well submerged pump unit, water pump partly are to adopt the axial--flow blading pump.Since nineteen ninety, China has introduced the manufacturing process of axial--flow blading pump, and existing product is improved, and has also introduced part axial--flow blading pump product.Quality of product, the working life of axial--flow blading pump in the market all improve, but because of qualitative leap does not take place in the working principle of axial--flow blading pump and the basic structure of pump, it will be very big further improving this pump structure and total efficiency again and enlarge its application area difficulty, and main cause has 4 aspects.

One, axial--flow blading pump desire improves the rated head of pump, is to realize with the way that increases progression; The rated head of design is high more, and the progression that needs is just many more, and the axial length of the pump housing is big more, cost is also high more.

Two, axial--flow blading pump total efficiency is low than positive displacement pump, even reasonably select reasonable operation point according to the operation curve of pump, its total efficiency also has only 0.6.

Three, the axial--flow blading pump curve is soft, it can only select the operation point by the oblique straight section in parabola, mounted pump can only move under set lift and flow, if in two indexs any adjusted, will cause another desired value that great change takes place.

Four, the axial--flow blading pump does not allow to carry and contains solid matter (as sand grains, mud etc.) and the big liquid of viscosity in the liquid, otherwise can have a strong impact on the operating life of pump or reduce lift of pump and water-outlet quantity.

At the deficiencies in the prior art part, it is a kind of applicable to infusion pump wide, energy-conservation to turbid liquid (as the sewage in the aeration well) pump drainage, the high-performance of processing, the purposes that contain solid phase particles, low price that the utility model provides.

Its concrete technical solution is such.

Positive displacement rotor infusion pump is characterized in that: comprise shell, interior cover, spacer, rotor and fin; Shell is a cylinder barrel shaped, on its internal surface, uniform four boss vertically, interior cover cooperates with four boss in the shell to be located in the shell, makes four axial cavitys of formation between shell and the interior cover, uniform through hole on the interior jacket wall, the internal surface of interior cover uniform vertically two spacers; Columniform rotor is positioned at cover, on the rotor, uniform four fins vertically; The two ends of rotor are respectively equipped with end cap, and end cap is provided with the aperture, and the coupling end of rotor is positioned at outside the end cap.

Described two spacers be located at shell on two relative boss corresponding parts.

Evenly be provided with four grooves on the axle of described rotor, four fins are located at respectively in four grooves of rotor, are provided with spring in the groove of fin bottom, and the end face of fin and circumference tangential becomes an oblique angle.

The end cap outside of the overhanging axle head of described rotor is provided with connecting flange.

Aperture on the described end cap is corresponding with four cavitys.

The utility model is compared with existing axial--flow blading pump, and under equal length and external diameter condition, its lift is higher, flow is bigger, and the lift height is little with pump housing axial length relation.This pump is reasonable in design, and is simple in structure, and volume is little, so low cost of manufacture, maintenance cost is also lower.

This positive displacement rotary pump belongs to the double-action liquid pump.In theory, the volumetric efficiency of pump is higher than existing multistage centrifugal or axial flow liquid pump.Simultaneously, because of the positive displacement pump flow that is in operation is directly proportional with rotating speed, lift is directly proportional with input torque, therefore, can give full play to power engine potential, improves the total efficiency of pump.So the utility model can be made into the metering pump or the variable displacement pump of high pressure.

Do not have relative movement between the utility model fin and the liquid medium, flap surface can not produce liquid stream erosion groove, thereby the operating life of rotor assembly is longer relatively, and allows liquid to contain a small amount of solid matter in the running.

Fig. 1 is the utility model structural representation,

Fig. 2 is the A-A sectional view of Fig. 1,

Fig. 3 is the B-B sectional view of Fig. 1.

Below in conjunction with accompanying drawing, the utility model is further described.

This positive displacement rotor infusion pump comprises shell 1, interior cover 2, spacer 3, rotor 6 and fin 4 etc.Shell 1 is a cylinder barrel shaped, and on its internal surface, uniform four boss vertically, interior cover 2 cooperates with four boss in the shell 1 and is installed in the shell 1, makes four axial cavitys of formation between shell 1 and the interior cover 2.Two wherein relative chambeies are hyperbaric chamber, and two relative in addition chambeies are low-pressure cavity.In cover uniform through hole on 2 walls, the internal surface of interior cover 2 is vertically, be installed with two spacers with the interior two relative boss corresponding parts of shell 1 by screw.Columniform rotor 6 is positioned at cover 2, rotor 6 axially on evenly offer four rectangle grooves, in four rectangle grooves that four bar shaped fins 4 are installed in respectively, in the groove of fin bottom spring 5 or steel wire are installed, make fin keep contacting with interior cover 2 internal surfaces closely, four fins are separated into 4 liquid zones with interior cover 2.The end face of fin and circumference tangential becomes an oblique angle.The two ends of rotor 6 are separately installed with upper and lower end cap 8,7, all offer the aperture on the upper and lower end cap 8,7, and the coupling end of rotor 6 is positioned at outside the lower end cap 7.The end cap outside of described rotor 6 overhanging axle heads is connecting connecting flange 9.

Aperture on the lower end cap 7 is corresponding with two relative low-pressure cavity, and the aperture on the upper end cap 8 is corresponding with two relative hyperbaric chambers.

In the use, if rotor 6 does not rotate, 4 liquid zone pressure equate.If power engine drives rotor 6 rotations, fin 4 will enter the liquid extruding of its moving direction front in the hyperbaric chamber 10 between shell 1 and the interior cover 2 by the moment of torsion of rotor, and raising encircles the pressure of liquid zone herein.Liquid zone in fin 4 back forms negative pressure owing to volume enlarges, and sucks liquid from low-pressure cavity 11, causes the pressure drop of this liquid zone low.Rotor 6 whenever rotates a circle, every fin finish extrude and suck liquid each twice, the also supercharging or suck twice of the every pair of hyperbaric chamber or low-pressure cavity.Along with rotor 6 continues rotation, the chamber pressure difference that the two pairs of pressure does not wait is increasing.When the pressure of hyperbaric chamber reaches enough big, liquid will promote check valve 12 and open, and continuously make liquid flow into liquid-transport pipe-line; Meanwhile, liquid entering hole also will continuously suck liquid, and pump changes the transfusion running state thus over to.

Claims

1, positive displacement rotor infusion pump is characterized in that: comprise shell, interior cover, spacer, rotor and fin; Shell is a cylinder barrel shaped, on its internal surface, uniform four boss vertically, interior cover cooperates with four boss in the shell to be located in the shell, makes four axial cavitys of formation between shell and the interior cover, uniform through hole on the interior jacket wall, the internal surface of interior cover uniform vertically two spacers; Columniform rotor is positioned at cover, on the rotor, uniform four fins vertically; The two ends of rotor are respectively equipped with end cap, and end cap is provided with the aperture, and the coupling end of rotor is positioned at outside the end cap.

2, positive displacement rotor infusion pump according to claim 1 is characterized in that: described two spacers be located at shell on two relative boss corresponding parts.

3, positive displacement rotor infusion pump according to claim 1, it is characterized in that: evenly be provided with four grooves on the axle of described rotor, four fins are located at respectively in four grooves of rotor, are provided with spring in the groove of fin bottom, and the end face of fin and circumference tangential becomes an oblique angle.

4, positive displacement rotor infusion pump according to claim 1 is characterized in that: the end cap outside of the overhanging axle head of described rotor is provided with connecting flange.

5, positive displacement rotor infusion pump according to claim 1, it is characterized in that: the aperture on the described end cap is corresponding with four cavitys.