CN2473904Y

CN2473904Y - Twin passageway jet aerator

Info

Publication number: CN2473904Y
Application number: CN01222738U
Authority: CN
Inventors: 吴勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-12
Filing date: 2001-05-12
Publication date: 2002-01-30
Anticipated expiration: 2011-05-12

Abstract

Provided is a double channel nozzle oxygen-increasing device comprising a submersible pump, a water main pipe, a double channel nozzle, an air main pipe, an air sub-pipe, a step and a floating cylinder. The utility model solves the problems in submersible oxygen-increasing machines in which the air and the water share one path and interfer with each other, the air flow can not be increased effectively, the water oxygen dissolution is not even and the pump body moves and offsets while working in water. The utility model can be used in fresh water culture and salt water culture.

Description

Nozzle-type dual-channel oxygen-enriching machine

The utility model relates to a kind of nozzle-type dual-channel oxygen-enriching machine.

In the prior art, the structure of submersible type aerator is for inserting air intake duct in the water inlet of immersible pump, the other end of pipe leads to atmosphere, set up water flow velocity during pump work in the water inlet, the air intake duct outlet produces vacuum and presses, have air flow to go into the pump housing in the air intake duct, water, gas mixture are sprayed by pump discharge through impeller.The problem that this working method exists: 1, make the pump housing, blade be subjected to cavitation shock, influence pump service life, lower efficiency, produce vibration.Because of gas, water density differ 700 times, high speed gas, current hit the pump housing, blade during pump work, and hitting power also differs 700 times, and the pump housing, the such long-term work of blade make its generation power fatigue, material sex change, deformation effect complete machine performance.The power that blade is subjected to when having only current in the pump is continuous, when gas, blade was subjected to when the water mixed flow existed power are interrupted.2, amount of air drawn is restricted.Because of the pump housing does not have throughput yet when not having discharge, increase throughput along with discharge after the pump housing starts also increases, the capacity of the pump housing itself is constant before and after starting, the increase of throughput has occupied the capacity of the pump housing, caused the minimizing of discharge, throughput also can and then reduce, and the minimizing of throughput will influence oxygenation effect.Air-water mixture was from the one-sided ejection in the pump housing bottom when 3, the pump housing was worked, make the pump housing be subjected to the reaction force of water, the big more reaction force that is subjected to of exerting oneself of pump is also big more, have to use lanyard for making the pump housing be still in the water surface, when the water surface is very big, fixedly the pump housing is very inconvenient for the water chin-deep, make that also whole water body oxygenation is inhomogeneous.

The utility model is at the problems referred to above, in order to overcome the suffered cavitation shock of the pump housing, eliminate the mutual interference mutually of throughput with the discharge of the inflow pump housing, improve oxygenation efficient, strengthen the uniformity of whole water body dissolved oxygen, autostability during pump housing work, the convenience that the user uses, economy is a purpose.

The utility model is mainly realized by following structure in order to achieve the above object.It comprises immersible pump, it is characterized in that being made up of the female pipe of gas, step, gas branch pipe, jellyfish pipe and double-channel nozzle.The female pipe of described gas: be tubular, be placed in a jellyfish pipe part, upper opening, bottom shutoff in the bottom, join with gas branch pipe, be connected by the bottom tube wall opening after its gas branch pipe communicate with gas mother pipe, the centre joins by step and jellyfish pipe; Described step: enclosed the cross section by the gentle female pipe of jellyfish pipe and form; Described gas branch pipe: be tubular, an end and the centre that the female pipe of gas is connected, the other end is contained in corresponding aperture on the jellyfish socket wall; Described jellyfish pipe: be tubular, the top joins by the female pipe of step and gas, and middle tube wall opening, its centre, hole include gas branch pipe, its aperture barrel dliameter greater than gas branch pipe; Described double-channel nozzle: be two runner mouths that are nested that a port and the hole on the jellyfish socket wall by gas branch pipe constitute, inner flow passage is a flow channel, and outer flow passage is a water flow passage, and they are distributed on the outer tube wall of jellyfish pipe.

Described nozzle-type dual-channel oxygen-enriching machine is characterized in that the female pipe of described gas, is cylinder or regular polygon tube, and its top has fixing hole and floating drum is enclosed within the female pipe of gas goes up and fix with pressing plate by fixing hole.Described step allows certain slope or radian.Described gas branch pipe is cylinder or regular polygon tube.Described jellyfish pipe is cylinder or regular polygon tube, and the shape in its barrel hole is consistent with the shape of gas branch pipe tube, can directly weld with the connected mode of submersible pump body, by be threaded, by flange be connected, optional one.Described immersible pump is made up of submersible motor, filter screen, the pump housing.Described double-channel nozzle, but its arrangement symmetric arrangement, evenly distribute, multilayer arranges, allows double-channel nozzle to stretch out, be that internal diameter adds an outer sleeve and manages with jellyfish and be connected with the hole on the jellyfish socket wall simultaneously along the direction of gas branch pipe.

The utility model compared with prior art has following distinguishing feature and good effect.1, make air, water respectively walk its road, not disturb mutually.Gas, water are blended in the outer formation of double-channel nozzle outlet, and the flow velocity that improves water flow passage saliva just can increase the flow of air in the flow channel, and molten oxygen amount in water body will increase.2, the design of the female pipe of gas is concentrated together originally thin one by one air intake duct, and complete machine structure improves, and has also reduced the atmidometer of flow channel.3, the even distribution of double-channel nozzle, make bring about the desired sensation, the effect of current direction each side makes a concerted effort to cancel out each other, and do not move not deflection when flowing certainly (do not consider wind-force, water) during the utility model work.4, the comprehensive layout of double-channel nozzle, make bring about the desired sensation, water to all the winds spreads, and helps the even oxygen aeration of water body.5, immersible pump in the bottom, floating drum on top, jellyfish pipe, double-channel nozzle be in the integrated design at middle part, makes the utility model become tumbler in the water.6, jellyfish is managed the value of different length, can adapt to the environment of the different depth of waters, helps the exchange of lower layer of water and upper water.7, adopt resistant material and anticorrosion submerged pump, can make the utility model expand mariculture to from freshwater aquiculture.8, the dismantled and assembled structure of immersible pump, floating drum helps maintenance, changes parts.9, the combination of the utility model duct type is simple in structure, and cost is low.

Fig. 1 is the utility model preferred embodiment schematic diagram.

Fig. 2 is the female pipe of embodiment gas, step, gas branch pipe, jellyfish pipe combination schematic diagram.

Fig. 3 is A-A cutaway view of Fig. 2.

Fig. 4 is the double-channel nozzle of eight symmetric arrangement of extension, is connected with immersible pump with flange and makes up schematic diagram.

Fig. 5 is that three double-channel nozzles of evenly arranging, jellyfish pipe are regular hexagon tube combination schematic diagram.

Fig. 6 is that the double-channel nozzle of two symmetric arrangement is combination schematic diagrames of octagon.

Fig. 7 is an embodiment floating drum schematic diagram.

Among the figure: the female pipe of 11 gas, 12 fixing holes, 21 steps, 31 gas branch pipes, 41 jellyfishes pipe, 42 nozzle bores, 43 outer sleeves, 51 submersible motors, 52 filter screens, 53 pump housings, 61 floating drums, 71 flanges, 72 flange holes.

The utility model preferred embodiment such as Fig. 1, wherein the female pipe 11 of gas, jellyfish pipe 41, gas branch pipe 31 all adopt cylindrical structure, and nozzle bore 42 is a circular hole.Gas branch pipe 31 outlets constitute double-channel nozzle with nozzle bore 42.The female pipe of the gas 11 formation flow channel that communicates with gas branch pipe 31.The outer wall of gas branch pipe 31 and nozzle bore 42 enclosed spaces constitute water flow passage.The physical dimension of 6 double-channel nozzles equates that the angle between it respectively is 60 degree.Suitable for reading the surfacing of the female pipe of gas during work, complete machine floats in the water body perpendicular to the water surface, and 6 double-channel nozzles are below the water surface.Lower layer of water enters filter screen 52, under the effect of the pump housing 53, make this part water body have certain pressure and certain flow velocity, this part water body enters jellyfish pipe 41 from delivery side of pump, evenly gives the water flow passage of 6 double-channel nozzles again, is sprayed the current with certain flow rate by the double-channel nozzle mouth.Producing vacuum therebetween when the outer water with certain flow rate of double-channel nozzle outlet flows presses, this vacuum is pressed and is directly proportional with the flow velocity of air at flow channel, the water flow velocity of water flow passage outlet is big more, and the gas velocity of flow channel outlet is also big more, but its vacuum presses absolute value less than the atmospheric pressure absolute value.Because double-channel nozzle is below the water surface, there is hydrostatic pressing, need water flow velocity to have a threshold flow velocity to overcome atmidometer under hydrostatic pressing and the flow channel design lower limit flow velocity, decide by the flow velocity that water flow passage goes out saliva entirely in this air capacity that flows into water body more than threshold flow velocity.The many more oxygenation effects of air capacity that enter water body are just good more.The high-velocity flow of 6 water flow passage outlets also pulls into air-flow vesicle and vesicle is pushed to a distant place, and the contact area that has increased air and water is finished high-quality dissolved oxygen process.Floating drum 61 is cylinders of hollow, and its buoyancy in water is enclosed within female the pipe on 11 of gas to it and fixes by fixing hole 12 usefulness pressing plates greater than the weight of complete machine.The present embodiment material is identical with the pump housing 53 materials, and the pump housing 53 and jellyfish pipe 41 are integral formation the utility model by being welded to connect.

Embodiment of the present utility model also has the various arrangements of double-channel nozzle.When the culturing pool body is cuboid and the utility model when keeping to the side to place, double-channel nozzle can be arranged one.But but two double-channel nozzle multilayers of symmetric arrangement are arranged when the pond water surface is strip.But when pond water surface double-channel nozzle symmetric arrangement when being square, rectangle, also can evenly distribute, as four double-channel nozzles of symmetric arrangement, eight, 18 double-channel nozzles, evenly distribute five double-channel nozzles, also can arrange two-layer or multilayer in case of necessity.In water, stablize the physical dimension of every group of double-channel nozzle and should equate in order to guarantee complete machine.The sum that double-channel nozzle is arranged depends on self physical dimension of the metered flow of immersible pump and double-channel nozzle.

Embodiment of the present utility model also has the shape of double-channel nozzle, can be the concentric circles that is nested, also can be the concentric regular polygon that is nested.Double-channel nozzle improves the directionality of current by increasing outer sleeve 403 and prolonging gas branch pipe.Jellyfish pipe, the female pipe of gas, gas branch pipe can be cylinders, also can be the regular polygon tube.The jellyfish pipe can directly weld when material is identical with the connected mode of submersible pump body outlet, also can pass through screw thread, flange connection.

Claims

1, a kind of nozzle-type dual-channel oxygen-enriching machine, it comprises immersible pump, it is characterized in that being made up of the female pipe of gas, step, gas branch pipe, jellyfish pipe and double-channel nozzle;

The female pipe of described gas: be tubular, be placed in a jellyfish pipe part, upper opening, bottom shutoff in the bottom, join with gas branch pipe, be connected by the bottom tube wall opening after its gas branch pipe communicate with gas mother pipe, the centre joins by step and jellyfish pipe;

Described step: enclosed the cross section by the gentle female pipe of jellyfish pipe and form;

Described gas branch pipe: be tubular, an end and the centre that the female pipe of gas is connected, the other end is contained in corresponding aperture on the jellyfish socket wall;

Described jellyfish pipe: be tubular, the top joins by the female pipe of step and gas, and middle tube wall opening, its centre, hole include gas branch pipe, its aperture barrel dliameter greater than gas branch pipe;

Described double-channel nozzle: be two runner mouths that are nested that a port and the hole on the jellyfish socket wall by gas branch pipe constitute, inner flow passage is a flow channel, and outer flow passage is a water flow passage, and they are distributed on the outer tube wall of jellyfish pipe.

2, it is characterized in that the female pipe of described gas by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, be cylinder or regular polygon tube, its top has fixing hole and floating drum is enclosed within the female pipe of gas goes up and fix with pressing plate by fixing hole.

3, it is characterized in that described step by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, allow certain slope or radian.

4, it is characterized in that described gas branch pipe by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, be cylinder or regular polygon tube.

5, it is characterized in that described jellyfish pipe by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, be cylinder or regular polygon tube, the shape in its barrel hole is consistent with the shape of gas branch pipe tube, can directly weld with the connected mode of submersible pump body outlet, by be threaded, by flange be connected, optional one.

6, it is characterized in that described immersible pump by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, form by submersible motor, filter screen, the pump housing.

7, it is characterized in that described double-channel nozzle by the described nozzle-type dual-channel oxygen-enriching machine of claim 1, but its arrangement symmetric arrangement, evenly distribute, multilayer arranges, allows double-channel nozzle to stretch out, be that internal diameter adds an outer sleeve and manages with jellyfish and be connected with the hole on the jellyfish socket wall simultaneously along the direction of gas branch pipe.