CN87209569U

CN87209569U - Water and gas-mixed oxygen-enriched machine with revolving drum front-to-back helix

Info

Publication number: CN87209569U
Application number: CN198787209569U
Authority: CN
Inventors: 苏有源; 廖焕中; 吴宏新; 张友木; 江兴
Original assignee: Huazhong Agricultural University
Current assignee: Huazhong Agricultural University
Priority date: 1987-06-26
Filing date: 1987-06-26
Publication date: 1988-02-24

Abstract

The utility model belongs to the improvement of an oxygen increase machine and is extensively used for the oxygen increase of the water area in the breeding industry, the sewage purification of an aeration tank and the mixing aspect of general solutions. The utility model is composed of an axial flow fan (10), a hollow shaft (4), positive and negative spiral shafts (3) and an oxygen increase device (2). The positive and the negative spiral shafts (3) are provided with positive and negative spiral blades (20), (21), and gas and water are processed in a positive mixing method in the oxygen increase device (2). The utility model having the integrative oxygen increase functions, such as gas injection, water pressing, water body agitation, deep layer water lift, positive mixing, etc., has the advantages of simple structure, low noise, low cost and higher efficiency. The range of oxygen increase is wide, which is favorable for increase oxygen fixedly or movably.

Description

Water and gas-mixed oxygen-enriched machine with revolving drum front-to-back helix

The utility model belongs to a kind of fishery machinery, exactly is the improvement of fixing or be displaced into aquaculture waters oxygenating machine about a kind of.

At present existing polytype oxygenating machine (or oxygen-increasing device) is widely used in the culture fishery, and wherein the most frequently used have an impeller stirring-type oxygenating machine, and this type of facility dynamic efficiency is higher, but structure heaviness, noise is big, needs to be equipped with deceleration device, makes the maintenance trouble; Other has a kind of eddy current type oxygenating machine, this mechanomotive force efficient height, but sphere of action is less.In recent years, various new-type oxygen-increasing facility have been developed successively, existing vane type or eddy current type oxygenating machine are done some improvement, make it have multiple functions such as gas injection, setting-out or stirring water body, but these class facility have carried out water, gas mixing aspect ideal not enough to deep layer water lift and pressure.

The purpose of this utility model is to overcome the prior art deficiency, designs a kind of new-type oxygen-increasing machine with high power efficient, and this machine removes has gas injection, and setting-out and agitate water are external, also has the deep layer water lift and repeatedly forces comprehensive oxygenation function such as water, gas mixing; Another purpose of the present utility model is to develop a kind of deceleration device that do not need, make it have simple structure, manufacturing cost is lower, the dynamic efficiency height, big and the wider new-type oxygen-increasing machine of purposes of sphere of action, this machine not only is used for fixing oxygenation, also can be used for mobile oxygenation, for example replaces existing oxygen-increasing device on aerating vessel; In addition, also can be used for aeration tank sewage purification and to the aspects such as mixing of general solution.

The utility model is achieved through the following technical solutions: the utility model is made of power section, driving part, buoyancy aid 5 and the aerator that is fixed on the buoyancy aid (or hull), this aerator is made of blower fan 10, quill shaft 4 and positive and negative screw shaft 3 and aerator 2, the upper end of aerator 2 has inlet mouth to communicate with quill shaft 4 (this quill shaft 4 is by blower fan 10 air feed), and its lower end has water-in to link to each other with filter screen 1.

Aerator 2 has the equal diameters of upper and lower two

cover plates

12,13, two cover plates, and uniform some blades 15 between two cover plates, the outside diameter circle of the distribution circle of this blade are less than the diameter of described upper and lower cover plate, and their constitute mixing section and water, gas mixed solution runner.A positive and negative screw shaft 3 is housed between quill shaft, mixing section and filter screen, this screw shaft 3 has a central shaft 19, on this axle, be furnished with right-handed screw blade 20 and antispin blade 21 simultaneously, positive and negative screw-blade has an interface, this interface just in time is positioned at the mixing section 14 of aerator 2, and a described right-handed screw blade part stretches in the quill shaft, and the part of its antispin blade stretches into filter screen and is fixed in the bottom of filter screen.

Blower fan 10 is a tube axial fan, and this blower fan is positioned at the upper end of inlet flange, and this flange is communicated with quill shaft upper end, and the lower end of quill shaft links to each other with aerator, and positive and negative screw shaft is by the mixing section of this aerator, and is straight-through with water-in and inlet mouth respectively.

During the oxygenation operation, outside air is pressed in the quill shaft 4 through blower fan 10 superchargings and by means of the negative pressure that mixing section 14 is produced, along make a long driver in the quill shaft air communication under straight cross positive and negative screw shaft the right-handed screw blade guiding and continue descending, when its interface place that comes downwards to positive and negative screw-blade is subjected to the restriction of antispin blade no longer descending; On the other hand, the source, water source that the antispin blade promotes constantly is up to the interface of this positive and negative screw-blade, because it is also no longer up to be subjected to the restriction of right-handed screw blade, the two (gas, water) can only be forced to stir, mix in the mixing section of aerator, forms water, the gas mixed solution of blister mechanism.This mixed solution is owing to be subjected to action of centrifugal force, be pressurized along interlobate flow passage, when flowing to the blade outer end, be subjected to once more forcing to stir, mix, formed like this high pressure water, gas mixed solution are to throw out to its waters on every side at a high speed, thereby improved the oxygen level of water body, and enlarged the oxygenation scope.The ingress of mixing section sucks the water body lower layer of water by the suction of self continuously simultaneously, throws out from aerator continuously again, thereby makes the constantly circulation of the upper and lower layer of water body, reaches the purpose that vertical dissolved oxygen is evenly distributed.

Below in conjunction with drawings and Examples the utility model is done to describe further.

Fig. 1: be one-piece construction synoptic diagram of the present utility model.

Fig. 2: be the longitudinal section synoptic diagram of wherein a kind of aerator structure of the present utility model.

Fig. 3: the A-A face view that is Fig. 2.

Fig. 4: be the longitudinal section synoptic diagram of another kind of aerator structure of the present utility model.

Fig. 5: the B-B face view that is Fig. 4.

Fig. 6: be positive and negative screw shaft structure synoptic diagram of the present utility model.

By Fig. 1, the utility model each several part is composed as follows: namely filter screen 1, automatic aerator 2, positive and negative helical axis 3, quill shaft 4, buoyancy aid 5, bearing block 6, motor 7, shaft coupling 8, support 9, blower fan 10, inlet flange 11. Blower fan 10 is axial fan, and it is positioned at the upper end of inlet flange 11, and the inlet flange lower end has passage to link to each other with the upper end of quill shaft 4, and the lower end of quill shaft 4 is communicated with automatic aerator 2. Surface in the upper end of forward-reverse spiral axle 3, remainder is not under water. Can adopt diesel engine or gasoline engine to replace motor in the non-transformer area, this aerator can be fixed on certain waters (or pond) by means of buoyancy aid, also can be by buoyancy aid (or ship Body) in the drift of the waters of certain limit, also on the available existing aerating vessel, replaces existing oxygen-increasing device, the oxygenation of in bigger waters, flowing.

By Fig. 2 and shown in Figure 3, wherein a kind of structure of automatic aerator 2 of the present utility model is: it has upper cover plate 12 and lower cover 13, the equal diameters of upper and lower cover plate, uniform some blades 15 between the upper and lower cover plate, the outside diameter circle of the distribution circle of blade 15 is less than the diameter of upper and lower cover plate, upper and lower cover plate and blade 15 common formation mixing chambers 14 and water, gas mixed liquor runner 16, in this automatic aerator, mixing chamber and described water, gas mixed liquor runner 16 are (being to be open between blade 15 and the blade 15) that communicate with each other.

By Fig. 4 and shown in Figure 5, the structure of another kind of automatic aerator of the present utility model is: on it has, lower two

cover plates

12 and 13, on, the equal diameters of lower cover, two cover plates 12, uniform some blades 15 between 13, the outside diameter circle of the distribution circle of blade 15 is less than upper, the diameter of lower cover, have air admission hole 17 at upper cover plate 12, this air admission hole 17 communicates with quill shaft 4, air chamber 18 and water that blade 15 forms alternately, gas mixed liquor runner 16, air chamber 18 is to take " stifled road " form to consist of by two adjacent blades 15, and and water, gas mixed liquor runner alternately. This air chamber 18 communicates with air admission hole 17. Air-flow part by quill shaft 4 enters air chamber 18, and another part enters mixing chamber 14 formation gas, water mixed liquid enters water body again with after the airflow stirring that enters air chamber 18 mixes after runner 16 superchargings.

By Fig. 6, positive and negative helical axis 3 of the present utility model has central shaft 19, and right-handed screw blade 20, backpitch blade 21, the interface of positive and negative helical blade are positioned at automatic aerator 2 In the mixing chamber 14, the part of right-handed screw blade 20 stretches in the quill shaft 4, and the backpitch blade stretches in the filter screen 1, and the end of its lower end is fixed on the bottom of filter screen 1, has the inlet opening to contact with water body on the filter screen 1.

Embodiment:

The positive and negative screw-blade outer diameter D=52mm of the positive and negative screw shaft 3 of this oxygenating machine, the blade head is several 1, its helical pitch λ=52mm, the outside diameter circle of blade 15 is than the little 30mm of upper and lower cover plate external diameter, 1.5 kilowatts of of this of and blade 15 is 6.Motor machine adapted can supply, 5 mu of waters oxygenation.

The utility model compared with the prior art, has comprehensive oxygen-supplying function such as deep layer water lift and action of forced stirring, mixing etc., thereby dynamic efficiency is higher, the oxygenation scope is bigger, this machine is simple in structure simultaneously, low cost of manufacture, noise are little, are fit to the oxygenation of aquaculture waters, aeration tank sewage disposal and to the mixing aspect of general solution, and this machine underwater portion also can be used for GEOTHERMAL WATER and breeds fish after preservative treatment in addition.

Claims

1, a kind of mechanical enhancement device of fixing or being displaced into the aquaculture waters, constitute by buoyancy aid 5 and the aerator that is fixed on buoyancy aid or the hull, it is characterized in that described aerator is by blower fan 10, quill shaft 4, positive and negative screw shaft 3 and aerator 2 constitute, the upper end of described aerator 2 has inlet mouth to communicate with described quill shaft 4, and its lower end has water-in to link to each other with filter screen 1, and described quill shaft 4 communicates with blower fan 10.

2, oxygen-increasing device as claimed in claim 1, it is characterized in that, described positive and negative screw shaft 3 is by central shaft 19, right-handed screw blade 20 and antispin blade 21 constitute, the interface of positive and negative screw-blade is positioned at the mixing section 14 of described aerator 2, and the right-handed screw blade 20 of this positive and negative screw shaft 3 stretches in the described quill shaft 4, and its antispin blade 21 stretches in the filter screen 1.

3, oxygen-increasing device as claimed in claim 1, it is characterized in that described blower fan 10 is a tube axial fan, this blower fan 10 is positioned at the upper end of inlet flange 11, inlet flange 11 links to each other with the upper end of described quill shaft 4, and the lower end of quill shaft links to each other with described aerator 2.

4, as claim 1 or 2 or 3 described oxygen-increasing devices, it is characterized in that, described aerator 2 has upper cover plate 12 and lower cover 13, the equal diameters of described upper and lower cover plate, uniform some blades 15 between two cover plates 12,13, garden, the top diameter of the distribution circle of blade 15 is less than the diameter of described upper and lower cover plate, and described upper and lower cover plate 12,13 and blade 15 constitute mixing sections 14 and water, gas mixed solution runner 16.

5, oxygen-increasing device as claimed in claim 4 is characterized in that, described mixing section 14 communicates with water, gas mixed solution runner 16.

6, oxygen-increasing device as claimed in claim 4, it is characterized in that, described blade 15 is formed air chamber 18 and water, gas mixed solution runner 16 alternately, the upper cover plate 12 of air chamber 18 through having air inlet port 17 communicates with described quill shaft 4, and described water, gas mixed solution runner 16 communicate with described mixing section 14.