CN2412900Y

CN2412900Y - Booster aerator

Info

Publication number: CN2412900Y
Application number: CN00206949U
Authority: CN
Inventors: 王元超; 刘启宇
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2000-03-22
Filing date: 2000-03-22
Publication date: 2001-01-03
Anticipated expiration: 2010-03-22

Abstract

The utility model relates to a booster aerator for sewage treatment. A blowing impeller is additionally installed at one end of a hollow driving shaft of a sucking type aerator with a high oxygen transfer coefficient to ensure that sufficient air is provided for a propeller to stir, so that the dynamic efficiency and the oxygen transfer coefficient of the aerator are raised. When the booster aerator is used, a plurality of the booster aerators can be used together and are inserted into water for a proper depth side by side in the same direction by means of a special supporting frame to form 35 DEG-40 DEG angles with the water surface. The utility model has a high flow pushing speed, the tank depth can reach five to six meters, when the utility model is used in winters, the water temperature falls a little. Due to the direct driving of a motor, the mechanical efficiency is high, and the noise is low.

Description

The pressure charged aerator

A kind of sewage disposal pressure charged aerator is specially adapted to by aeration organic waste water be handled in the circulating water pool.

The existing aerator that is used for sewage disposal roughly has following several: blowing-type, rotary brush type, rotating disc type, jetting type and inhaling type; Its mechanism is with various means the sky G﹠W to be mixed nothing more than, and is in air and process that water contacts that oxygen is soluble in water.Its shortcoming or not fierce because of its stirring causes the oxygen transfer ratio low, generally is no more than 18%; Because of the air capacity deficiency of its generation, cause dynamic efficiency not high.

The purpose of this utility model provides a kind of pressure charged aerator, it installs a cover supercharging air-blast device additional in the tubular shaft ingress of the inhaling type aerator of oxygen transfer ratio higher (can reach 50%), thereby Mi has mended the deficiency of existing aerator, is greatly improved simultaneously on dynamic efficiency and two indexs of oxygen transfer ratio.

Main composition of the present utility model comprises motor [1], coupling sleeve [2], flexible coupling [3], thrust block [4], thrust metal [5], end cap [6], bead cover(ing) [7], blasting vane wheel [8], coupling spindle [9], hollow drive shaft [10], sleeve pipe [11], bearing support [12], bearing [13], water screw [14], nozzle [15] and protecting wire net [16].The bearing support [12] of coupling sleeve [2], thrust block [4], thrust metal [5], end cap [6], bead cover(ing) [7], sleeve pipe [11] and buried bearing [13] is assembled into supporting and the protector of one as rotatable parts in turn coaxial line; Wherein the ring flange of coupling sleeve [2] both sides by the rim of the mouth with bolt respectively with the ring flange of motor [1] spindle nose end and end cap [6] coaxial line link together.Process several openings that protecting wire net [16] is housed on the end cap [6] and be connected a side that blocks bead cover(ing) [7] as air inlet port and by outer rim with bolt; And its opposite side is plugged on the sleeve pipe [11] with certain-length, and is screwed; The other end of sleeve pipe [11] is sleeved on the bearing support [12] that studs with bearing [13], also is screwed.Flexible coupling [3], coupling spindle [9], blasting vane wheel [8], hollow drive shaft [10], water screw [14] and nozzle [15] are assembled into one in turn coaxial line and are bearing in thrust block [4] and bearing [13] as rotatable parts and go up and driven by motor [1] through flexible coupling [3].The exposed end that hollow drive shaft [10] is in bearing [13] outside links to each other with nozzle [15] by the left-hand thread on the endoporus (opposite with sense of rotation), and fixes the water screw [14] on it in the process that nozzle [15] screws; Have several air inlet ports on the other end sidewall in the bead cover(ing) [7] and peg graft screw retention with coupling spindle [9] and extend to; The principal piece of coupling spindle [9] is positioned at the space that bead cover(ing) [7] and end cap [6] seal out, be fixed with blasting vane wheel [8] on it, and extension passes the thrust metal [5] that is contained on the coupling sleeve [2] and links to each other with motor [1] axle with thrust block [4] and by a pair of flexible coupling [3].Whole rotatable parts speed with 2840～2970 rev/mins under the driving of motor [1] is rotated, blasting vane wheel on it [8] sucks a large amount of air from the inlet mouth on the end cap [6], supercharging after hollow drive shaft [10] at the air inlet port of this end, along its hollow high speed ejection of sentencing 8～9 meter per seconds by nozzle [15], and the water screw [14] on nozzle [15] stirs intensely and the water thorough mixing, even also can form a large amount of tiny bubbles at the deep water place in nozzle [15] the place ahead.When using, aerator needs to fix by erecting frame.Erecting frame comprises support [17], tripod [18], anchor [19], protective shield [20] and pole [21].During use, will side by side, equidirectionally be fixed on by several aerators [22] that above-mentioned mode of connection is formed on the support [17] across the sewage disposal pond.Support [17] is the integrated steel welded construction, is fixed on wall screw on the cement flooring of pool side.Aerator [22] is connected suitable the insertion by means of tripod [18] and becomes 35 °～40 ° angles in the water and with the water surface with bolt.Anti-suction device is made up of anchor [19], protective shield [20] and pole [21].Protective shield [20] is suspended on water screw [14] top of aerator by anchor [19] on the cement flooring that is fixed on support [17] appropriate location, the place ahead and pole [21], and the bolt on the available pole [21] is adjusted to correct position, causes negative pressure and sucks air to prevent water screw [14] the blade back side.

Fig. 1 pressure charged aerator structural representation

Scheme of installation during Fig. 2 pressure charged aerator (front view and vertical view)

Fig. 3 pressure charged aerator individual host is installed sectional schematic diagram

Fig. 4 pressure charged aerator protective shield scheme of installation

Be most preferred embodiment of the present utility model below:

Pressure charged aerator as shown in Figure 1, it comprises motor [1], coupling sleeve [2], flexible coupling [3], thrust block [4], thrust metal [5], end cap [6], bead cover(ing) [7], blasting vane wheel [8], coupling spindle [9], hollow drive shaft [10], sleeve pipe [11], bearing support [12], bearing [13], water screw [14], nozzle [15] and protecting wire net [16].Wherein the ring flange of coupling sleeve [2] both sides by the rim of the mouth with bolt respectively with the ring flange of motor [1] spindle nose end and end cap [6] coaxial line link together.Process several openings that protecting wire net [16] is housed on the end cap [6] and be connected a side that blocks bead cover(ing) [7] as air inlet port and by outer rim with bolt; And its opposite side is plugged on the sleeve pipe [11] with certain-length and is screwed; The other end of sleeve pipe [11] is sleeved on the bearing support [12] that studs with bearing [13], also is screwed it.The exposed end that hollow drive shaft [10] is in bearing [13] outside links to each other with nozzle [15] by the left-hand thread on the endoporus, and fixes the water screw [14] on it in the process that nozzle [15] screws; Have several air inlet ports and this end and coupling spindle [9] grafting on the other end sidewall in the bead cover(ing) [7] and extend to, screw retention.Coupling spindle [9] is gone up and to be fixed with blasting vane wheel [8] with key, and the spindle nose that passes thrust block [4] endoporus that is packed on the thrust metal [5] spool links to each other by a pair of flexible coupling [3] and motor [1].Fig. 2, Fig. 3 and Fig. 4 have provided the use scheme of installation of pressure charged aerator.During use, several are equidirectional, pressure charged aerator [22] side by side by means of tripod [18] be bolted to that steel welding support [17] is gone up and become 35 °～40 ° angles with the water surface, support [17] is fixed on the pool side cement flooring across the sewage disposal pond and with wall screw.Another group anchor [19] is fixed on the cement flooring in support [17] the place ahead with wall screw, and with the bolt on the pole [21] protective shield [20] is suspended on the suitable height of pressure charged aerator water screw [14] top.

Because the more existing aerator of the utility model has increased by a cover supercharging air-blast device, thereby is greatly improved simultaneously on dynamic efficiency and two indexs of oxygen transfer ratio.Its plug-flow speed height, the pond can reach 5～6 meters deeply, and water temperature descended few when used winter.Again because of motor direct-drive, mechanical efficiency height, noise are little.It is an ideal organic sewage treatment unit comparatively at present.

Claims

1. a pressure charged aerator is characterized in that it comprises motor [1], coupling band [2], shaft coupling [3], thrust block [4], thrust metal [5], end cap [6], bead cover(ing) [7], blasting vane wheel [8], coupling spindle [9], hollow drive shaft [10], sleeve pipe [11], bearing support [12], bearing [13], water screw [14], nozzle [15] and protecting wire net [16]; Wherein the ring flange of coupling sleeve [2] both sides by the rim of the mouth with bolt respectively with the ring flange of motor [1] spindle nose end and end cap [6] coaxial line link together, process several openings that protecting wire net [16] is housed on the end cap [6] and by a side of outer rim and bolt shutoff bead cover(ing) [7], and its opposite side is plugged on the sleeve pipe [11] with certain-length and is screwed, the other end of sleeve pipe [11] is sleeved on the bearing support [12] that studs with bearing [13], also consolidate it with screw, the exposed end that hollow drive shaft [10] is in bearing [13] outside links to each other with nozzle [15] by the left-hand thread on the endoporus, and in the process that nozzle [15] screws, fix the water screw [14] on it, have several air inlet ports and extend on the other end sidewall in the bead cover(ing) [7], and in this end and coupling spindle [9] grafting, screw retention, coupling spindle [9] is gone up and to be fixed with blasting vane wheel [8] with key, and the spindle nose that passes thrust block [4] endoporus that is packed on the thrust metal [5] spool links to each other by a pair of flexible coupling [3] and motor [1].