CN2740600Y

CN2740600Y - Double-acting immersed jetting aerating machine

Info

Publication number: CN2740600Y
Application number: CNU2004200574648U
Authority: CN
Inventors: 路金喜; 杜贵荣; 路达
Original assignee: Hebei Agricultural University
Current assignee: Hebei Agricultural University
Priority date: 2004-11-29
Filing date: 2004-11-29
Publication date: 2005-11-16
Anticipated expiration: 2014-11-29

Abstract

The utility model relates to an aerating device used for biological sewage treatment. Through the improvement and assembly of a double-acting reciprocating water pump and a jetting device, when the double-acting reciprocating water pump is in operation, not only a great deal of air can be sucked into the pump and dissolved in the water, and the gas-liquid interface with large area is generated, but also gas water solution with high concentration can be sprayed and stirred into an aerating pool.

Description

Two moving diving jet flow aerators

Technical field

The utility model relates to a kind of aerating apparatus that is used for biological sewage treatment.

Background technology

In sewage disposal, the bio-aeration treatment process is a kind of the commonly used of organic waste water and processing method efficiently handled.In this processing method, aeration is the important topic of studying in this technical field as core content for many years always.Although aeration method and aerating apparatus are varied at present, but its aerator commonly used generally all is gas blowers, because some inherent characteristicses that gas blower itself exists, it is big to cause the aeration system that generally adopts at present to be difficult to overcome noise, shortcomings such as accessory is more, and dissolved oxygen is abundant inadequately.

The purpose of utility model

The purpose of this utility model provides a kind of two moving jet flow aerator, to substitute gas blower and aeration head organic sewage is carried out the dissolved oxygen aeration.

Technical scheme

The utility model is achieved in that by the improvement combination to two moving fro water pumps and ejector, make two moving fro water pumps when operation, not only can a large amount of air suction pumps is interior and water-soluble, but also the air water solution that contains high density can be sprayed stirring in the aeration tank.It implements technical scheme is in two moving fro water pump suction chambers, be installed into tracheae and water inlet pipe respectively, when two moving fro water pumps move, a large amount of air and a spot of water can constantly enter suction chamber by inlet pipe and water inlet pipe, in order to guarantee that more air enters in the pump, in two moving fro water pump drip chambers, ejector is installed, suction chamber by ejector further a large amount of air is sucked and and two moving fro water pump drip chambers in high density air water solution carry out further mixed dissolution, with further increase air concentration and dissolved oxygen rate.Because this utility model can be installed under water, and the glassware for drinking water in two moving fro water pump pressure injections chamber has bigger pressure energy, like this, two moving fro water pumps outwards spray with high speed by the injection orifices that is distributed on the circumference, because jet velocity is constantly changing, thereby can produce bigger agitaion to sewage in the biological tank, to reach higher dissolved oxygen effect.

Beneficial effect

This utility model is compared with existing aerating apparatus and is had the following advantages:

(1) because this utility model is sunken in the water and turns round, and noise is little, accessory is few;

(2) the air water mixed solution physical efficiency of high density produces large-area gas-liquid interface in water, and when bubble slowly rises, air is dissolved in the water, thereby makes dissolved oxygen efficiency higher;

(3) stirring effect is better, can keep active sludge to swim, thereby reaches the purpose of carrying out the high-performance bio oxidation;

(4) not stopping up is the distinguishing feature of this utility model.

The drawing explanation

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model embodiment front view.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is parts ejector (a 28) enlarged view among Fig. 1.

Fig. 4 is parts tightness system (a 22) enlarged view among Fig. 1.

Fig. 5 is parts gland (a 43) enlarged view among Fig. 4.

Fig. 6 is parts asbestos packing (a 42) enlarged view among Fig. 4.

2. pairs of moving diving jet flow aerator suction chamber inlet pipe 3. valves 4 of 1. ejector inlet pipe among the figure, piston 5, left side chamber volume loam cake 6. water inlet pipes 7. valves 8. suction valve flaps 9. sleeve pipes 10, spring 11, casing support 12, right chamber volume loam cake 13. aerator loam cakes 14, bolt 15, pitch brace 16. slide blocks 17. connecting lever pull bars 18. connecting lever loam cakes 19. connecting levers 20, right support 21, frame 22. tightness systems 23. drag link sleeves 24. dividing plates 25. jet holes 26. chamber volume lower covers 27. aerator lower covers 28. ejectors 29. left support 30. bolts hole 31. casings 32. rotating shafts 33. shaft couplings 34. bearings 35. bolts hole 36. baffle plates 37. nozzles 38. suction chambers 39. mixing sections 40. diffusing openings 41. tightness system shells 42. asbestos packings 43. glands 44. screw holes 45. outlet valve flaps.

Realize the utility model best way

In Fig. 1, ejector inlet pipe (1) is by steel pipe manufacturing, and an end and ejector suction chamber are connected, and the other end is connected with the inlet manifold, and its effect is exactly to deliver air to ejector; Two moving diving jet flow aerator suction chamber inlet pipe (2) are by steel pipe manufacturing, and an end and aerator suction chamber are connected, and the other end is connected with the inlet manifold, and its effect is to deliver air to the aerator suction chamber; Valve (3) is installed on the inlet pipe (2), and its effect is the air input of regulating in the inlet pipe; Piston (4) and pitch brace (15) tighten together by nut, its effect is exactly to carry out move left and right by pitch brace (15) pulling, thereby set up negative pressure and malleation in left and right chamber volume, when piston (4) when being moved to the left, left side chamber volume is owing to be compressed and can produce bigger pressure, and right chamber volume is because volume expansion and can produce bigger negative pressure, when piston (4) when moving right, left side chamber volume produces big negative pressure, and right chamber volume produces big pressure; Left side chamber volume loam cake (5) is to be formed by the steel plate cutting processing, is linked together by bolt and casing (31), and its effect is and casing (31) forms left chamber volume together; Water inlet pipe (6) is by steel pipe manufacturing, and an end is a free end, and the other end is connected by screw thread and suction chamber, and its effect is that water is transported to suction chamber; Valve (7) is installed on the water inlet pipe (6), and its effect is to regulate flooding quantity; Suction valve flap (8) is to be formed by the steel plate cutting processing, its center is welded with valve rod, valve rod can move up and down in sleeve pipe (9), the other end of valve rod is equipped with spring (10), sleeve pipe (9) is welded on the casing support (11), casing support (11) is to be made into the I-shaped support and to be welded on the chamber volume loam cake (12) by round steel, its effect is exactly carrying sleeve (11), the effect of suction valve flap (8) is when being reduced to negative pressure owing to piston (4) motion chamber volume pressure, this flap (8) moves downward and compression spring (10), at this moment suction valve is opened, the air water mixed solution enters chamber volume from suction chamber, because piston (4) when motion stress is elevated to certain malleation, spring (10) pressure energy discharges and drives flap (8) and moves upward when chamber volume, under the effect of chamber volume pressure, this suction valve cuts out rapidly subsequently; The structure of outlet valve flap (43) and mode of motion and suction valve flap (8) are just the same, the effect of different is outlet valve flap (43) is when chamber volume pressure is elevated to certain malleation, this flap is opened, so that air water solution enters drip chamber from chamber volume; Right chamber volume loam cake (12) is to be formed by the steel plate cutting processing, and is the same with left chamber volume loam cake (5), links together by bolt and casing (31), and its effect is exactly and casing (31) forms right chamber volume; Aerator loam cake (13) is to be formed by the steel plate cutting processing, links together by bolt (14) and casing (31), and its effect is and casing (31) forms suction chamber; Pitch brace (15) is made by round steel, and an end links together by nut and piston (4), and hinge joint is connected the other end with connecting lever pull bar (17), in order to keep piston (4) and connecting lever pull bar (17) steady running, slide block (16) is installed at the anchor point place; Slide block (16) is to be formed and anchor point welds together by the channel-section steel cutting processing, and slide block (16) can be along the slideway move left and right; Connecting lever pull bar (17) is made of round steel, and an end and pitch brace (15) are hinged, and the other end and connecting lever (19) are hinged; Connecting lever (19) is made of round steel, connecting lever (19) the other end is fixed together by key and rotating shaft (32), like this when rotating shaft (32) is rotated, the pin joint of connecting lever (19) and connecting lever pull bar (17) moves in a circle, the circumferential motion of pin joint can make slide block (16) and pitch brace (15) do left and right sides to-and-fro movement under the effect of connecting lever pull bar (17); Connecting lever loam cake (18) is to be stamped to form by steel plate, links together by screw and frame (21), and its effect is and frame (21) forms the slideway of slide block (16) together, and connecting lever (19) etc. is partially enclosed in a space; Right support (20) is that band steel is welded, and incorporating mill frame (21) welds together, and its effect is exactly to install and fix aerator; Frame (21) is to be welded by angle steel and steel plate, and its effect is delivered to right support (20) with body sound power exactly; Tightness system (22) one ends are connected with casing (31) by bolt, and the other end is connected by bolt with frame (21), and its effect is that the gap between drag link sleeve (23) and casing (31) is sealed, and its structure is introduced in Fig. 4; Drag link sleeve (23) is to be processed by cast steel, and it is nested on the pitch brace (15) by transition fit, and its effect is that protection pitch brace (15) prevents wearing and tearing; Dividing plate (24) is to be formed by the steel plate cutting processing, and he is fixed together by bolt and casing (31), and its effect is and casing (31) forms drip chamber together and aerator lower cover (27), casing (31) form the pressure injection chamber together; Jet hole (25) is a litmus aperture, and its effect is outwards to spray at a high speed with the high pressure gas water mixed liquid of pressure injection chamber; Chamber volume lower cover (26) is to be formed by the steel plate cutting processing, links together by bolt and casing (31), and its effect is and casing (31) is formed left and right chamber volume together; Aerator lower cover (27) is to be processed by steel plate, and it links together by bolt and casing (31), and its effect is and casing (31) decomposition pressure jet chamber together; Ejector (28) is fixed by welding on the dividing plate (24), and its effect is the air concentration that increases the air water mixed solution, and air is dissolved in the water more fully, and its structure is introduced in Fig. 3; Left side support (29) is to be made by steel plate, is rectangular panel blocks, is welded on the aerator lower cover (27), and it plays the support fixation effect to aerator; Bolt hole (30) is a small sircle hole, and its effect is by wall screw aerator to be fixed on the basis; Casing (31) is a cast steel components, and it mainly contains left and right chamber volume, suction chamber, drip chamber, pressure injection chamber etc. and partly forms.

In Fig. 2, rotating shaft (32) is that the round steel machining by carbon steel material forms, and its end and shaft joint (33) are welded to connect, and the other end and connecting lever (19) are welded to connect, and its effect is that the swinging moment with engine (electric motor) passes to aerator; Shaft coupling (33) is a steel flanges dish, and rotating shaft (32) welds together, and its effect is and engine (electric motor) rotating shaft shaft coupling links together by bolt, gives rotating shaft (32) with the transmission of torque of engine; Bearing (34) is a rolling bearing, and its effect is that countershaft (32) plays support and qualification rotating shaft (32) moves radially, and reduces rotating shaft (32) pivoting friction resistance; Bolt hole (35) is a small sircle hole, and its effect is by bolt aerator to be fixed on the basis.

In Fig. 3, baffle plate (36) is to be formed by the steel plate cutting, is annular, is welded on nozzle (37) water-in, and its effect is steady when the air water mixed solution enters nozzle (37) water-in; Nozzle (37) is a cast steel components, and one section straight length that diameter is bigger is arranged in the water inlet, diminishes gradually at the nozzle exit end overflow section, and its effect is to make the air water mixed solution form high-velocity jet liquid stream; Suction chamber (38) is welded by steel pipe and steel plate, the centre is a steel pipe, two ends are Circular Plate, the upper end is nested in nozzle (37) in the suction chamber, and be welded to connect, lower end and mixing section (39) are welded to connect, and with ejector water inlet pipe (1) insertion suction chamber, weld the junction, the effect of suction chamber (38) is exactly when nozzle (37) outwards during high-velocity jet air water mixed solution, because injection stream walks the entrained air of suction chamber (38), and forms vacuum, at this moment because ejector inlet pipe (1) and suction chamber (38) are connected, air will enter suction chamber (38) by ejector inlet pipe (1) endlessly; Mixing section (39) is to be formed by steel pipe manufacturing, and an end and suction chamber (38) welding is communicated with, and the other end and diffusing opening (40) welding is communicated with, and its effect is to make air water in this further mixing; Diffusion (40) is to be made by steel plate, and its profile is the hydraucone shape, and mixing section (39) is welded to connect, and its effect is to make high speed air water mixed solution reduction of speed, makes kinetic energy be converted into pressure energy.

In Fig. 4, Fig. 5 and Fig. 6, tightness system shell (41) is to be processed by cast steel, for cylindrical, pitch brace (15) and drag link sleeve (23) are equipped with in the center, outside drag link sleeve (23), be filled with asbestos packing (42), the filler extruding is tight at asbestos packing (42) one ends by gland (43), gland (43) is connected with tightness system shell (41) by screw, and regulate gap between tightness system shell (41) and gland (43), thereby reach the purpose of regulating the filler crushing strength by governing screw; Screw hole (44) is the screw hole that screw is installed.

Claims

1. an aerating apparatus that is used for biological sewage treatment is characterized in that: inlet pipe and water inlet pipe are installed in the suction chamber of two moving fro water pumps, in the drip chamber of two moving fro water pumps ejector are installed, be provided with the pressure injection chamber below drip chamber.

2. biological sewage treatment aerating apparatus according to claim 1 is characterized in that on inlet pipe in the suction chamber and the water inlet pipe variable valve being housed all.

3. biological sewage treatment aerating apparatus according to claim 1 is characterized in that the suction chamber of ejector is equipped with inlet pipe.

4. biological sewage treatment aerating apparatus according to claim 1 is characterized in that pressure injection chamber jet hole is arranged on the disk and uniform distribution.