CN2594263Y

CN2594263Y - Submersible aeration machines

Info

Publication number: CN2594263Y
Application number: CN03219365U
Authority: CN
Inventors: 张建东
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-13
Filing date: 2003-01-13
Publication date: 2003-12-24
Anticipated expiration: 2013-01-13

Abstract

The utility model relates to a submersible aeration machine which comprises an air pipe, a negative pressure cover, an impeller wheel, a guiding distributor, a guide flow cylinder and a submersible electric machine, wherein, the submersible electric machine is fixed at the lower part of the guiding distributor, and a shaft of the submersible electric machine extends into a cavity of the guiding distributor upwards; or the submersible electric machine is fixed on the negative pressure cover, and the shaft of the submersible electric machine extends into the cavity of the guiding distributor downwards. The impeller wheel is a helical impeller wheel. A water inlet of the guide flow cylinder is positioned at the upper part of the guide flow cylinder, and the water inlet is 3 cm-25 cm away from a liquid level in a using state. Air bubbles, wherein, the liquid level of which is accompanied by sludge, are carried into the guide flow cylinder and are conveyed into a pool through the guiding distributor by the utility model, and therefore, the problem that aerobic formers in the sludge which is accompanied on the air bubbles are dewatered and dead can be avoided. Under the condition that no spraying device is provided, the utility model solves the problem that because the air bubbles on the liquid level float, the aerobic formers are dead.

Description

The diving aeration machines

Technical field

The utility model relates to a kind of oxygen increasing pump, especially a kind of diving aeration machines.

Technical background

At present, commonly used to aeration machines in sewage purification.Chinese patent application number is 00203984.2 to disclose a kind of diving aeration machines.This diving aeration machines comprises submersible machine, pump case and centrifugal impeller, and centrifugal impeller places in the pump case and with submersible machine power output shaft straight up and is connected, and a negative pressure cover is arranged in the pump case, and inlet pipe is connected on the negative pressure cover.During work, the centrifugal impeller rotation because action of centrifugal force produces negative pressure, is brought air in water mixing realization oxygenation.Mix with water under normal pressure because enter diving aeration machines air, so the oxygen dissolution effect is undesirable; In addition, because sewage often contains washing composition, whipping agent etc., can produce in its waterfall gas working process and be difficult for the disruptive bubble in a large number, these bubbles then can carry the water surface on the mud that contains the aerobic biochemical bacterium one floating in the pond and cause the aerobic biochemical bacterium because of the dehydration mass mortality, so often need establish spray equipment on biochemistry pool, the water spray prevents aerobic bacteria death on the biochemistry pool liquid level.

Summary of the invention

Oxygenation efficient height when the utility model purpose provides a kind of use need not use sprinkling equipment and makes the better diving aeration machines of existence of aerobic bacteria.

The utility model comprises airduct, negative pressure cover, impeller, directed dispenser, guide shell and submersible machine, guide shell is connected with directed dispenser and cavity communicates, negative pressure cover places in the chamber of guide shell and directed dispenser and with airduct and is connected, and impeller places in the chamber of guide shell and directed dispenser and is fixed on the submersible machine axle and is positioned at the bell-mouthed below of negative pressure cover; Submersible machine is connected on directed dispenser or the negative pressure cover; For achieving the above object, the utility model is taked submersible machine to be fixed on the bottom of directed dispenser and submersible machine to stretch on axially in the chamber of directed dispenser or submersible machine is fixed on the negative pressure cover and the submersible machine axially downwardly extending is gone in the chamber of directed dispenser; Impeller is a helical runner; The guide shell water inlet is in the top of guide shell, and its water-in is apart from the water-in of 3 centimetres to 25 centimetres of liquid levels under user mode.

The airduct that above-mentioned submersible machine is fixed on the diving aeration machines on the directed dispenser is a straight tube.

Above-mentioned submersible machine be fixed on the airduct of the diving aeration machines on the negative pressure cover by the branch wind pipe of superposed air main, bottom, connect air main and branch wind pipe hollow disc, be connected the combined flue pipe that the circle ring disk of branch wind pipe and negative pressure cover is formed, the space that each branch wind pipe surrounded can hold submersible machine.

Above-mentioned directed dispenser has drum shape body, and underpart side five equilibrium is drawn some thrust-augmenting nozzles, and thrust-augmenting nozzle communicates with the inner chamber of drum shape body; The thrust-augmenting nozzle medullary ray is 6 to spend to 75 degree at the orthographicprojection line of tangent line on horizontal plane at water outlet place and diameter vertical guide angle through this point of contact, and this tangent line is 20 to spend to 75 and spend at the angle through the orthographicprojection line on the diameter vertical guide at this point of contact and horizontal plane.

The thrust-augmenting nozzle medullary ray of above-mentioned directed dispenser is a straight line; Formed curved surface of thrust-augmenting nozzle internal surface and thrust-augmenting nozzle medullary ray vertical surface intersecting lens all are circular arc and the formed closed curve of straight-line segment by 270 degree, the radius of the circular arc portion of this closed curve is linear decrease at the medullary ray along its water outlet direction, and decline factor is 0.04-0.25.

The utlity model has positive effect: when (1) diving aeration machines of the present utility model uses, submersible machine drives the helical runner rotation, with the air in the negative pressure cover and water above it together toward pressing down, and air is pressurizeed in directed dispenser, mix with water, and, realize further dissolved oxygen because the contraction of thrust-augmenting nozzle is further pressurizeed the mixture of its bubble and water.When (2) working, water flows into from guide shell upper end water-in, bringing the bubble with mud of liquid level into guide shell together delivers in the pond through directed dispenser, thereby avoided attached to the dead problem of the dehydration of the aerobic bacteria in the mud on the bubble, so the utility model can solve under the situation without sprinkling equipment because of causing the floating problem that causes the aerobic bacteria mass mortality of liquid level bubble.(3) since the tangent line of thrust-augmenting nozzle internal surface medullary ray at the water outlet place be downward-sloping and angle arranged on horizontal plane with diameter line through the drum at this point of contact, so water is downward and oblique flow, water in the pond rotates with the directed dispenser center, and the water conservancy diversion mouth of pipe at directed dispenser flows out also upwards mobile a long way off downwards, the every place of water in the pond all is in flow state like this, whole Chi Shui is in a kind of running balance, do not have the oxygenation dead angle, the mud that has aerobic bacteria can or not swim on the water surface in sedimentation yet.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present utility model.

Fig. 2 is the structural representation of the airduct among Fig. 1.

Fig. 3 is the upward view of Fig. 2.

Fig. 4 is the structural representation of the negative pressure cover among Fig. 1.

Fig. 5 is the A-A sectional view of Fig. 4.

Fig. 6 is the structural representation of the directed dispenser among Fig. 1.

Fig. 7 is the vertical view of Fig. 6.

Fig. 8 is the structural representation of the helical runner among Fig. 1.

Fig. 9 is the structural representation of embodiment 2 of the present utility model.

Embodiment

(embodiment 1)

See Fig. 1 to Fig. 5 and Fig. 8, the diving aeration machines of present embodiment comprises airduct 1, negative pressure cover 2, impeller 3, directed dispenser 4, guide shell 5 and submersible machine 6.Airduct 1 is a combined flue pipe, is made up of the branch wind pipe 13 of superposed air main 11, bottom, the hollow disc 12 that connects air main 11 and branch wind pipe 13, the circle ring disk 14 that is connected branch wind pipe 13 and negative pressure cover 2.The outer ring of circle ring disk 14 is circular, and inner ring is can be by the shape of submersible machine.Airduct 1 is fixedlyed connected with equally distributed six ball floats 9 by link span 8 by the air main 11 on top, and negative pressure cover 2 is connected on the circle ring disk 14 of airduct 1, and the bottom connects directed dispenser 4.Submersible machine 6 is arranged in the space that each branch wind pipe surrounds and is fixed on the negative pressure cover 2, and its motor shaft 61 penetrates negative pressure cover 2 down.Impeller 3 is a helical runner 3, and helical runner 3 is installed on the motor shaft 61 and is positioned at the below of the hydraucone 21 of negative pressure cover 2.Guide shell 5 is installed on the directed dispenser 4, is provided with antifouling grid around the upper end water-in 51.Water when the height that guide shell 5 upper end water-ins 51 are lower than liquid level 7 during installation can make the work of diving aeration machines on the water-in 51 is in laminar flow regime.

See Fig. 6 and Fig. 7, the directed dispenser 4 of the diving aeration machines of embodiment 1 has drum shape body 41, a pod apertures is arranged at the bottom of drum shape body 41, and body 41 lower side five equilibriums are drawn six thrust-augmenting nozzles 42, and thrust-augmenting nozzle 42 communicates with the inner chamber of drum shape body 41.Because the drum medullary ray was in the plumb position substantially when directed dispenser was installed, so its plane perpendicular to medullary ray is a horizontal plane, its plane that is parallel to medullary ray is a vertical guide, and the vertical guide at its medullary ray place is the diameter vertical guide; The set of the formed point of geometric centre of thrust-augmenting nozzle internal surface and the closed curve that forms perpendicular to the Plane intersects of thrust-augmenting nozzle water outlet direction is the thrust-augmenting nozzle medullary ray.Thrust-augmenting nozzle medullary ray 43 is 11 degree at the orthographicprojection line of tangent line on horizontal plane at water outlet place and the diameter vertical guide angle a at this point of contact of process, and this tangent line is 47 degree at the angle b through orthographicprojection line on the diameter vertical guide at this point of contact and horizontal plane.The thrust-augmenting nozzle medullary ray 43 of directed dispenser 4 is a straight line; Thrust-augmenting nozzle internal surface 44 formed curved surfaces and thrust-augmenting nozzle medullary ray 43 vertical surface intersecting lenses all are circular arc and the formed closed curve of straight-line segment by 270 degree, the radius of the circular arc portion of this closed curve is linear decrease at the medullary ray along its water outlet direction, and decline factor is 0.105.

Can design the guide shell 5 and the air main 11 of different heights according to different needs, make air main 11 upper ends be higher than liquid level 7 and guide shell 5 upper end water-ins 51 are lower than liquid level 7, the water-in 51 of guide shell is lower than the height of liquid level 7 and can be calculated by the diameter of the water-in 51 of the power of submersible machine and guide shell, generally between 3-25 centimetre, make the current of water-in 51 upper ends of guide shell be in laminar flow regime.The diving aeration machines of present embodiment when mounted, when the guide shell internal diameter is 320 millimeters, motor 5.5 kilowatt-hours, the water-in 51 of guide shell is lower than liquid level 8-20 centimetre can both keep laminar flow, the best is 13 centimetres; When water-in 51 internal diameters of guide shell are 400 millimeters, motor 15 kilowatt-hours, the best is 15 centimetres; When water-in 51 internal diameters of guide shell are 500 millimeters, motor 5.5 kilowatt-hours, the best is 6 centimetres.

For reaching effect of the present utility model, the internal surface 44 of thrust-augmenting nozzle can be made different shapes such as hexagonal, circle; Also thrust-augmenting nozzle medullary ray 43 can be designed to curve, thrust-augmenting nozzle medullary ray 43 will have a very wide scope at diameter vertical guide angle a and this tangent line of tangent line at the orthographicprojection line on the horizontal plane and this point of contact of process at water outlet place through the orthographicprojection line on the diameter vertical guide at this point of contact and the angle b of horizontal plane, its scope of power loss as the flow velocity of not considering water outlet and water outlet can be between the 0-90 degree, angle a of the present utility model here chooses 6 and spends between 75 degree, and angle b chooses 20 and spends between 75 degree; The scope of shrinkage coefficient in design of the internal surface 44 of thrust-augmenting nozzle be broad also, and the utility model is selected 0.04-0.25, and the flow velocity of water outlet power loss very fast and water outlet is less in this scope.

(embodiment 2)

See Fig. 7, present embodiment comprises airduct 1, negative pressure cover 2, impeller 3, directed dispenser 4, guide shell 5 and submersible machine 6.Airduct 1 is a straight tube, fixedlys connected with equally distributed six ball floats 9 by link span 8 in the top of airduct 1.Negative pressure cover 2 is connected airduct 1 below, and directed dispenser 4 is connected on the negative pressure cover 2.Submersible machine 6 is fixed on the directed dispenser 4, and the motor shaft 61 of submersible machine 6 penetrates directed dispenser 4.Impeller 3 is a helical runner 3, and helical runner 3 is installed on the motor shaft 61 and is positioned at the below of the hydraucone 21 of negative pressure cover 2.Guide shell 5 is installed on the negative pressure cover 2, is provided with antifouling grid around the upper end water-in 51.Water when the height that guide shell 5 upper end water-ins 51 are lower than liquid level 7 during installation can make the work of diving aeration machines on the water-in 51 is in laminar flow regime.The drum shape body 41 of the directed dispenser 4 of embodiment 2 has tapering, and the bottom of drum shape body 41 is through holes that cooperate with motor shaft, and other directed dispensers with embodiment 1 are identical.

Embodiment 2 is inequality with the link position of the submersible machine of embodiment 1, and the effect that reaches in actual use is identical.Because the submersible machine of embodiment 2 is arranged on the below of directed dispenser, so embodiment 2 described diving aeration machines when mounted, submersible machine is suspended in the pond, relatively near at the bottom of the pond; And embodiment 1 submersible machine be arranged on the top of directed dispenser, embodiment 1 described diving aeration machines when mounted, submersible machine and directed dispenser are to be suspended in the pond, and a segment distance can be arranged at the bottom of the pond.

Claims

1, a kind of diving aeration machines, comprise airduct (1), negative pressure cover (2), impeller (3), directed dispenser (4), guide shell (5) and submersible machine (6), guide shell (5) is connected with directed dispenser (4) and cavity communicates, negative pressure cover (2) places in the chamber of guide shell (5) and directed dispenser (4) and with airduct (1) and is connected, and impeller (3) places in the chamber of guide shell (5) and directed dispenser (4) and is fixed on the below that the hydraucone (21) of negative pressure cover (2) was gone up and be positioned to submersible machine axle (61); It is characterized in that: submersible machine (6) is fixed in the bottom of directed dispenser (4) and the chamber that submersible machine axle (61) upwards stretches into directed dispenser (4) or submersible machine (6) is fixed on that negative pressure cover (2) is gone up and submersible machine axle (61) stretches in the chamber of directed dispenser (4) downwards; Impeller (3) is a helical runner; Guide shell water-in (51) is in the top of guide shell, and its water-in (51) is apart from the water-in of (7) 3 centimetres to 25 centimetres of liquid levels under user mode.

2, diving aeration machines according to claim 1 is characterized in that: the airduct (1) that submersible machine (6) is fixed on the diving aeration machines on the directed dispenser (4) is a straight tube.

3, diving aeration machines according to claim 1, it is characterized in that: submersible machine (6) be fixed on the airduct (1) of the diving aeration machines on the negative pressure cover (2) by the branch wind pipe (13) of superposed air main (11), bottom, connect air main and branch wind pipe hollow disc (12), be connected the combined flue pipe that the circle ring disk (14) of branch wind pipe and negative pressure cover is formed, the space that each branch wind pipe (13) is surrounded can hold submersible machine.

4, according to claim 2 or 3 described diving aeration machines, it is characterized in that: directed dispenser (4) has drum shape body (41), and body (41) lower side five equilibrium is drawn some thrust-augmenting nozzles (42), and thrust-augmenting nozzle communicates with the inner chamber of drum shape body; Thrust-augmenting nozzle medullary ray (43) is 6 to spend to 75 degree at the orthographicprojection line of tangent line on horizontal plane at water outlet place and diameter vertical guide angle (a) through this point of contact, and this tangent line is 20 to spend to 75 and spend at the angle (b) through the orthographicprojection line on the diameter vertical guide at this point of contact and horizontal plane;

5, diving aeration machines according to claim 4 is characterized in that: the thrust-augmenting nozzle medullary ray (43) of directed dispenser (4) is a straight line; Formed curved surface of thrust-augmenting nozzle internal surface (44) and thrust-augmenting nozzle medullary ray (43) vertical surface intersecting lens all are circular arc and the formed closed curve of straight-line segment by 270 degree, the radius of the circular arc portion of this closed curve is linear decrease at the medullary ray along its water outlet direction, and decline factor is 0.04-0.25.

6, arbitrary diving aeration machines according to claim 5, it is characterized in that: the top of airduct is provided with link span (8), is fixed with some equally distributed ball floats (9) on the link span (8).