Suction cleanersSuction cleanersSelectives & fundamentalsSelectives & fundamentals

SUCTION CLEANERSSUCTION CLEANERS

(Also popularly known as vacuum Cleaners)(Also popularly known as vacuum Cleaners)

WHAT IS VACUUM ??WHAT IS VACUUM ??

Vacuum is space which has no matter in it, ie any space Vacuum is space which has no matter in it, ie any space in which pressure is lower than atmosphere pressurein which pressure is lower than atmosphere pressureAtmospheric pressure is –Atmospheric pressure is –

1 kg/sq.cm1 kg/sq.cm :1 bar :760 nun of mercury:1 bar :760 nun of mercury :10,000 mm of water :1,01.350 pascal:10,000 mm of water :1,01.350 pascal

Principle utilized by Vacuum CleanerPrinciple utilized by Vacuum Cleaner__________________________________________________________________________________________________________________________

All liquids & gases flow from high All liquids & gases flow from high pressure pressure area to low pressure area.area to low pressure area.

Common Example Common Example : : Drinking thru a strawDrinking thru a straw

Volume of airVolume of airIt is the quantity of air in liters for a given unit of time, which enters the vacuum It is the quantity of air in liters for a given unit of time, which enters the vacuum cleaner or which the fans exhaust.cleaner or which the fans exhaust.1000 liters1000 liters : : 1 cu.m.1 cu.m.3600 seconds :3600 seconds : 1 hour1 houre.g. 35 liters/s = 126 cu.m/lh = 0.277 liters/se.g. 35 liters/s = 126 cu.m/lh = 0.277 liters/s

OUR PRODUCTS RANGEOUR PRODUCTS RANGE

Single Phase – commercial & Industrial

Three Phase-Industrial

Centra-Vac Solutions

Features to understand in a Suction CleanerFeatures to understand in a Suction Cleaner__________________________________________________________________________________________________________________________

MOTOR

FILTER

BODY

ACCESSORY

MOBILITY

WEIGHT

CONTAINER CAPACITY

SOUND LEVEL

AIRFLOW

Vacuum Cleaner from inside

Container

Dust bag

Main filter

Motor pre-filterFine exhaust filterExhaust diffuser

Motor Top Float System HEPA Solution

TYPES OF SUCTION CLEANERTYPES OF SUCTION CLEANER__________________________________________________________________________________________________________________________

BY CAPABILITY DRY TYPE

WET & DRY TYPE

BY CAPACITY COMMERCIAL (Mobile)

INDUSTRIAL (Mobile)

FIXED INSTALLATION

BY POWER SINGLE PHASE (230 V)

THREE PHASE (440 V)

BY DESIGN CANNISTER TYPE

UPRIGHT TYPE

Explanation of Parameters

MOTOR

COOLING DIRECT - MOTOR COOLED BY THE MAIN AIR FLOW

BYPASS - MOTOR COOLED BY A SEPARATE COOLING AIR FLOW ISOLATED FROM WORKING AIR

AIR FLOW AMOUNT OF AIR PASSING THROUGH THE MACHINE IN LITERS PER

SECOND MEASURED. AT STANDARD MEAN SEA LEVEL CONDITIONS

SUCTION

POWER THE POWER -CALCULATED FROM AIR FLOW RATE AND SUCTION OR VACUUM CREATED BY THE MACHINE. THIS INDICATES THE REAL POWER BEING YIELDED BY THE MACHINE FOR VACUUM CLEANING.

VACUUM THE AMOUNT OF NEGATIVE ATMOSPHERIC PRESSURE PRODUCED BY THE MACHINE. THIS IS MEASURED IN mm OF W\TER GAUGE AND IS MAXIMUM AT CLOSED AIR INTAKE

SOUND LEVEL THIS IS A MEASURE OF ANNOYING SOUND GIVEN BY MACHINE. THIS lS MEASURED BY SOUND LEVEL METER IN DECIBELS. THE WEIGHTAGE CURVE 8A. GIVES \ALUES CLOSEST TO THE HUMAN EAR. HENCE IT IS GENERALLY GIVEN IN dB(A). IT IS

MEASURED AT 1m AWAY FROM THE MACHINE.

DUST CAPACITY IT IS THE VOLUME OF DUST RECEPTACLE OF THE VACUUM CLEANER MEASURED AS PER ASTM-F-888

MOTOR PROTECTION CLASS

ELECTRICAL INSULATION CLASS AS PER IEC-335-1

CLASS I : GROUNDED

CLASS II : DOUBLE INSULATED

VOLTAGE, V SUPPY VOLTAGE APPLIED TO THE VACUUM CLEANER. THE PERMISSIBLE FLUCTUATIONS ARE +/- 10%

FREQUENCY, Hz SINGLE PHASE MOTORS RUN EQUALLY WELL ON

BOTH 50 Hz: AND 60 Hz: POWER SUPPLY.

FOR 3 -PHASE MOTORS, MOTOR SPEED CHANGES WITH FREQUENCY. HENCE THEY MUST BE

DESIGNED FOR EITHER 50 Hz:' OR 60 Hz

RATED POWER, W AN INTERNATIONALLY ACCEPTED AVERAGE VALUE FOR POWER CONSUMPTION UNDER NORMAL OPERATION AS DEFINED IN IEC-335-2-2

MAX. POWER, W THE MAXIMUM POWER CONSUMPTION WHICH OCCURS WITH FULL OPEN AIR INLET AS DEFINED IN IEC-335-2-2

MOTOR PROTECTION GRADE

MECHANICAL/DUST AND HUMIDITY /WA.TER PROTECTION ACCORDING TO IP SYSTEM AS DEFINED IN IEC-529. IP STANDS

FOR INGRESS PROTECTION

Transport velocity and capture: Velocity is the number of meters a particle travels in a unit of time. In suction,

it is decided by the volume of air and the diameter of the hose a') velocity is volume of air divided by the area of hose.

Capture velocity: This is the velocity of the air that is needed at the inlet or at the nozzle, to capture the product and carry it away. It will depend on:

the size of particle the specific gravity the charge the particle catties e.g. III grinders or mills, the loose particles have a speed. The capture

velocity at the nozzle has to be greater in order to suck them in. Selection of insufficient velocity will cause the product to settle out on the

interior of the piping system and clog it.

For ordinary dust, we shall use 20-21 meters/second and for heavy dust (Cement, Metal shavings) up to 35 meters/second.

Calculating hose size :

How to calculate the hose size:- e.g.: The machine has the air flow rate of 68 liters/second we know that Velocity = Volume / Area. Therefore, Area = Volume / Velocity = 0.0019 sq. meter. Area of a circle = 3.14 x sq. of radius Therefore, radius = sq. root of (Area x 3.14) = 0.0248 meter = 24.87 mm We multiply the radius by 2 to get the diameter Hence, the diameter is 49.7mm i.e.50mm Hence, the machine to use will be GS 83 or GB 733 or any

higher machine.

Industrial Vacuum Cleaners

Selection of Vacuum Cleaners

Single-phase for flexible and in-expensive cleaning The single-phase motor driven machines are designed for flexibility and are easy to maneuver. They are primarily used for occasional cleaning of manufacturing areas

or for overhead cleaning. The single-phase motors are normally fitted with carbon brushes. Single-phase

motors are also available in a brushless version for durability and explosion-proof applications.

Three-phase for continuous operation The three-phase machines are designed for continuous use e.g. for process-

integrated cleaning or fixed installations with several inlets in use at the same time.

The three-phase machines can be subdivided into side-channel blowers where the vacuum fan is mounted directly on the motor, and turbine motors where the motor

and the fan units are connected via a drive belt.

Side-channel blower or turbine machine?

Choosing a machine equipped with side-channel blower or turbine depends on the cleaning task at hand.

A side-channel blower has a direct relation between vacuum/airflow and rated power (kW)

A turbine solution provides you with the ability to change the ratio between vacuum and airflow independent from the rated power by changing the

combination of turbine and motor.  

Example 1: light dust requires high airflow and less vacuum with a turbine solution - 4,0 kW rated power (197 l/sec 14,7 Kpa)

with a side-channel solution - 7,5 kW rated power (205 l/sec 27,5 Kpa)  

Example 2: heavy debris requires less airflow and high vacuum  with a turbine solution - 3,0 kW rated power (87 l/sec 22,5 Kpa)

with a side-channel solution - 4,0 kW rated power (100 l/sec 27,0 Kpa)

ADVANTAGES OF USING SUCTION CLEANER

____________________________________________ Ease of cleaning One time cleaning with no displacement of dust

from one place to another Removal of fine & embedded dust particles.

Friendly towards the operator

Enhanced company image.

Can be utilized for material retrieval & save wastages

LOTS OF KNOWLEDGE

WITH LOTS MORE TO LEARN

THESE ARE THE TOOLSTHESE ARE THE TOOLS

WHICH WILL HELP US EARNWHICH WILL HELP US EARN

BEST WAY TO GET STARTED

IS TO REVISE,

PRACTISE,

DEMONSTRATE