Tsurumi TRN 400V Hz Submersible aerator Auto-suction submersible aerator for communal and industrial waste water clearance and treatment.
TRN-submersible aerator The Tsurumi TRN-submersible aerator is a submersible motor, mixer and compressor in one unit. The rotor of the submersible aerator is directly connected with the motor shaft. As shown in the illustration below, the rotation of the rotor causes a circular movement of the water, creating negative pressure around the rotor. Air is then automatically suctioned from above through the suction line. At the same time water flows in from below into the area around the rotor - this is then intensively mixed with air due to the rotation of the rotor. A fine air-water mixture is formed that is spun radially outwards at high speeds through the channels of the guide ring. The flow that this creates ensures that every part of the tank is reached and that the water is uniformly oxygenated. Suction pipe Flow generated by air bubbles Air Submersible motor Water and air are mixed here Features High oxygen intake optimum distribution and high oxygen yield thanks to high level of microscopic, air bubbles. Perfect mixing within the tank a strong flow of water mixed with air ensures that every part of the tank is aerated and that no sediment is formed. Simple, robust and compact The bearings and the oil bath around the shaft seal are oversized. The air suctioned from above presses the water away from the rotor and forms an air cushion, preventing the shaft seal from touching water. This ensures fault-free 24 hour operation and ensures long product life. Flow generated by centrifuged water Guide vane Water FLOW SAMPLE round tank square tank rectangular tank Ratio of tank length to width: :.5 or less Ratio of tank length to width: :2 2
ADVANTAGES - thorough mixing of the waste water, thereby preventing sediments - tiny air bubbles provide aeration with high oxygen utilisation - completely insensitive to frost - low noise level - no spray formed - simple installation and servicing thanks to simple construction - low risk of blockage - large oil chamber - Casing made of solid cast iron - seal is protected from water during operation - A proven track record, with tens of thousands produced over more than 20 years To prevent blockage caused by fibres and solid particles the TRN-series has a special rotor and a specially designed suction plate. Uses in waste water clearance and treatment are as follows: Mixing and equaliser tanks: Standardising of waste water sludge loads and quantities and preventing odours developing SBR reactions and sludge activation tanks: Breakdown of organic substances Sludge stabilisation: Preventing development of odour and further oxidation of the organic components in the waste water Neutralisation: Neutralisation of alkaline waste water with fumes or CO 2 Flotation: Flotation of oils and greases Pond aeration: Improves the aeration in natural waters such as in eutrophication
Standard accessories: Sound absorber and valve The open rotor of the TRN series suctions a large volume of water for the motor power through the pump basket. This water is then mixed with air and distributed horizontally in all directions through the channels of the guide ring. The top of the rotor is hollow and allows the air that has been suctioned in to fill the area around the shaft seal so that it can mix with the water at the rotor. One consequence of this is that a layer of air is formed separating the shaft seal from the medium and thereby substantially increasing the life of the shaft seal. Another effect is that the water that is suctioned in is oxygenated with tiny air bubbles, effectively aerating the waste water. To prevent blockage caused by fibres and solid particles the TRN series has a special rotor and a specially designed suction plate. The long life and low maintenance of the TRN submersible aerator is due specifically to the specially selected materials. Only cast iron and stainless steel comes into contact with the water. Parts that are subject to particular wear such as the shaft, screws, the rotor and suction plates are made of stainless steel. The dual mechanical seal (SiC/SiC) is a particular feature of the TRN aerator; this is cooled by an oil bath of at least 0.5l per kw motor output. Model 2TRN2.75 2TRN2.5 TRN42.2 TRN4.7 TRN45.5 80TRN47.5 80TRN42 80TRN47 0TRN424 TRN440 Motor output kw 0,75,5 2,2,7 5,5 7,5 2 7 24 40 Nominal current A 2,4,5 5, 8, 2, 5,9,7 5,2,0 8,0 Phases Rpm 28 28 Start method direct direct direct direct direct direct s.-d. s.-d. s.-d. s.-d. Diameter Airpipe mm 2 2 80 80 80 0 max. rotor depth m.5 m.5 m. m 4.0 m 4.0 m 4.5 m.0 m.0 m.0 m.0 m Number Outlets 8 8 Air volume m /h 7 20 9 78 24 57 202 88 528 * Dry weight of the pump without cables * Sound emissions measured at max. installation depth at m distance from the sound absorber (mean of four measurements) * Air volume and oxygen intake rate measured at max. installation depth (for motor output of 2kW or over: at 5m) Dry weight kg 40 70 0 200 0 40 5 length m 20 20 20 Flow picture: Main flow: direct oxygen intake thanks to air bubbles Subsidiary flow: indirect oxygen intake by mixing mixing by centrifuged water Subsidiary flow Primary flow: mixing by rising air bubbles Model 2TRN2.75 2TRN2.5 TRN42.2 TRN4.7 TRN45.5 80TRN47.5 80TRN42 80TRN47 0TRN424 TRN440 Guide ring Depth.5 m.5 m. m 4.0 m 4.0 m 4.5 m.0 m.0 m.0 m.0 m Cross section Primary flow.4 m.8 m 2.4 m.0 m.8 m 4.4 m 5.2 m 5. m. m 7. m Cross section Subsidiary flow Round tank.5 m 4.5 m.0 m 7.0 m 9.0 m.0 m 2.0 m.0 m 4.5 m 7.0 m Cross section Subsidiary flow Square tank.0 m 4.0 m 5.5 m.5 m 8.0 m 9.0 m.0 m.5 m.0 m 5.0 m Primary and subsidiary flow measured at max. installation depth 4
The motor is a conventional squirrel cage motor with the following features: The bearings are over-sized (see illustrations on pages and 2). The stripped cable ends in the packing box are sealed in synthetic resin so as to prevent water from penetrating the motor. The directly started motors have a thermoswitch (motor protection) that resets automatically. Within the cable wraps star delta motors have a thermoswitch for each phase. The double end face seal (SiC/SiC) is lubricated and cooled by an oil bath, that is much larger than in other pumps with a comparable motor performance. Installation types: The free-standing installation is the most common type of installation. The submersible aerator is placed on the floor of the tank without further anchorage. Its weight prevents the device from moving. The submersible aerator can be lifted out of the tank with a crane for servicing without having to empty the tank. For free-standing installation a simple metal stand can be used to increase the maximum tank depth in which the submersible aerator can be installed by 0.5m without primary pressure. The inlet opening can also be extended with a pipe; the water is taken from close to the base and the air above is centrifuged. This allows the maximum tank depth to be increased by max..5m. Stationary installation is generally used for fitting in deep tanks (also in combination with aeration with primary pressure, etc.) or if assembly or disassembly is not possible with a mobile crane. In this case the submersible aerators are fitted between guide pipes or on a bridge. Lifting equipment is required to lift it out of the tank. Floating installation is used, for instance, to aerate unsecured tanks, ponds, lakes or rivers. The submersible aerator can also be secured oscillating on ropes or can be firmly anchored in position. Hanging installation with suitable floats is also an option. A mobile crane is generally used to lift the aerator in and out of the tank. 5
Air volume - water depth - curve in clear water under normal conditions the air volume can deviate ±5% Air volume m /h Air volume m /h Water depth m Water depth m
AERATION UNDER PRE-APPLIED PRESSURE: The aeration system consists of a compressor and a TRN-series TSURUMI submersible aerator. A tank, for example is 9m, with m for the primary pressure of the compactor and m for the aerator. This system substantially reduces the necessary power input and consumption and requires much less space. The oxygen transfer rate is also increased thanks to the higher potential installation depth. This increases the time the air bubbles take to reach the surface of the water in the aeration tanks. Compactor overall submersion depth Primary pressure of the compactor Pressure of the aerator Aerator 7
EXAMPLES OF ACTIVATED SLUDGE PROCESS Contact activated sludge process Fine rake Control tank Sludge absorption equipment Disinfection tank Influx Outflow Rake Redirecting tank with rake Equaliser tank (primary aeration) Replacement pump Stand-by pump Pump operational Contact activated sludge tank Flotation tank Defoaming pump Waste tank Sludge deposit tank Sludge thickening Extended activated sludge process Control tank for sludge return Rake Control tank Sludge return Sludge absorption equipment Disinfection tank Fine rake Influx Sieve/rake Outflow Rake Waste tank Redirecting tank with rake Primary clarification tank (primary aeration) Equaliser tank (primary aeration) Sludge activation tank Pump operational Stand-by pump Replacement pump Flotation tank Defoaming pump Sludge deposit tank Sludge thickening Conventional activated sludge process Sand container Rake Control tank Control tank for sludge return Sludge return Disinfection tank Influx Fine rake Sludge absorption equipment Outflow Sieve/rake Grit trap Inflow via rake Primary clarification tank (primary aeration) Equalising reservoir (primary aeration) Sludge activation tank Flotation tank Defoaming pump Waste tank Replacement pump Stand-by pump Pump operational Sludge deposit tank Sludge thickening 8
INSTALLATION EXAMPLE 2TRN2.75 INSTALLATION EXAMPLE 80TRN47 9
DIMENSIONS in mm Silencer and valve 2TRN2.75 / 2TRN2.5 TRN42.2 / TRN4.7 Air pipe ø2 ø ø80 ø0 ø A 0 20 245 45 4 øb 0 70 C 275 70 - - 740 D - - 585 70 8 Values in ( ) for TRN4.7 TRN45.5 80TRN47.5 / 80TRN42 Values in ( ) for 80TRN42 80TRN47 0TRN424 TRN440
COMPONENTS AND 2TRN2.75 / 2TRN2.5 TRN42.2 2 2A 2B 0 5 Suction Cover Spacer Oil seal Oil Lifter Oil Plug Threaded Flange Carbon Steel ISO VG2 5 5 0 4 Eye Bolt EN-X0Cr 2 2A 2B 28 0 5 Suction Cover Spacer Oil Seal Middle Plate Oil Lifter Oil Plug Carbon Steel EN-X2Cr ISO VG2 5 5 0 4 Threaded Flange Eye Bolt EN-X0Cr TRN4.7 TRN45.5 / 80TRN47.5 2 2A 2B 28 0 5 Suction Coaver Spacer Oil Seal Middle Cover Oil Lifter Oil Plug Carbon Steel EN-X2Cr ISO VG2 5 5 0 4 Threaded Flange Eye Bolt EN-X0Cr 2 2A 2B 28 0 5 Stuffing Box Suction Cover Spacer Oil Seal Middle Plate Oil Lifter Oil Plug Carbon Steel EN-X2Cr 5 5 0 4 Threaded Flange Motor Bracket Eye Bolt ISO VG2 EN-X0Cr
80TRN42 / 80TRN47 0TRN424 2 2A 2B 28 0 5 Stuffing Box Impeller Suction Cover Spacer Oil Seal Middle Plate Oil Lifter Oil Plug Carbon Steel EN-X2Cr 5 5 0 4 Threaded Flange Motor Bracket Eye bolt ISO VG2 EN-X0Cr 2 2 2A 2B 28 0 5 Stuffing Box Suction Cover Strainer Spacer Oil Seal Middle Plate Oil Lifter Oil Plug DIN.0040+ DIN.0040 5 5 0 4 Threaded Flange Motor Bracket Eye Bolt ISO VG2 EN-X0Cr TRN440 2 2 2 28 0 5A 5B Gland Stuffing Box Suction Cover Strainer Oil seal Middle plate Oil distributor Oil screw Oil screw DIN.0040+ DIN.4008 5 5 0 4 7 Threaded flange Motor Bracket Sleeve Eye Bolt ISO VG2 EN-X0Cr We reserve the right to change specifications and designs herein for improvement without prior notice. Our pumps are for professional use only. In the event that Tsurumi (Europe) GmbH have, in exceptional cases taken over, a manufacturer s warranty, this entitles the end-user to assert remedy free of charge against Tsurumi (Europe) GmbH due to any defect to the product occurring during the guarantee period (see below), also then when the warranty claims against the seller do not or no longer exist. In the event of malfunction, which is attributable to the improper handling by the enduser, no guarantee claim shall arise. Further claims shall not result from the warranty, unless if something to the contrary has explicitly been determined. The decision as to whether remedy is effected by way of replacement or repair shall be at the choice of Tsurumi (Europe) GmbH. The claims shall be time barred after a period of three months after expiry of the guarantee period, however, not before expiry of the warranty period which is valid towards the seller. In the event of doubt, the warranty period shall correspond with the warranty period which is valid between the end-user and his seller. Tsurumi (Europe) GmbH Heltorfer Straße 4 D-404 Düsseldorf Tel.: +49 (0)2-4797 Fax: +49 (0)2-479429 Email: vertrieb@tsurumi-europe.com www.tsurumi-europe.com Your supplier Cat. no. TRN-E-0/08