|
Look for links to printable pdf
literature in equipment specifications sections, above in this column, & on
site map.
| |
Commercial Kitchen Hood Exhaust
Air Cleaners, Filters, Purifiers, Scrubbers
|
Remove Cooking Smoke, Mist, Odors
Approved for use & meets stringent
standards for New York City
Meets applicable UL & NFPA requirements
(Approved with New York City MEA
number)
MAJOR COMPONENTS
OF KITCHEN HOOD EXHAUST AIR CLEANING SYSTEM:
Generically, an air cleaning system for a
kitchen hood exhaust consists of three major components:
- Particulate filtration for smoke and
mist.
- Gas filtration for gases/odors.
- Blower to move the air into the hood,
through the air cleaning equipment, to the outdoors, usually.
Particle Filtration for smoke and
mist
This section of the air cleaning system generally consists of an electronic
air cleaner sometimes referred to as an electrostatic precipitator (ESP).
The technology used has been available for decades and it is currently in
use not only for kitchen hoods, but also welding smoke and mist collection
from machine tools in factories.
As air enters the ESP, the air passes
through a high voltage section which deliberately places an electronic
charge on any smoke or mist particles in the air stream. Then the
charged particles pass through an electric field (think of it like a
magnetic field) which is designed in such a way as to place a force on the
particles perpendicular to the direction of air flow, thus moving the
particles out of the air stream to be collected in a component of the ESP
named the collection cell(s).
As the ESP operates, the precision aligned
collection plates within the collection cell(s) become soiled with smoke and
oil mist from cooking beneath the kitchen hood. Unless the collection
plates are kept clean, the collection efficiency of the ESP is reduced.
Therefore, the collection cell(s) must be periodically cleaned for optimum
performance of the ESP.
We offer both
manually cleaned and self-cleaning versions of the ESP. Manually
cleaning the collection cells involve opening an access door to the ESP,
removing the cell(s), placing the cell(s) in a container filled with
electronic cell cleaner detergent, letting the cell(s) soak for several
minutes, rinsing the cell(s), letting the cell(s) dry, and finally,
reinserting the cell(s) into the ESP. The self-cleaning version of the
ESP automates this process and may be placed on an optional 7 day
programmable timer which will determine automatically when the wash cycle
will occur.
Gas/Odor Filtration
A form of carbon media is generally used to capture gases and odors. A
bulk refillable module containing ample media to capture gases, will follow
the ESP.
- Ample Media: There must be enough gas
adsorbing media in relation to the air flow through the air cleaning
system such that the contaminated air spends enough time in the media that
the gases/odors may be properly adsorbed with sufficiently high single
pass efficiency before the filtered air is exhausted.
- Bulk Refillable: Eventually the media
becomes saturated from the adsorpsion of
gases/odors and is unable to adsorb anymore. At that time or before,
the media must be replaced. The module is designed to be refilled in the
field by the user. It is not necessary to repurchase components
filled with media, only the media itself is needed.
Air Handler - Blower/Motor
A blower is necessary to pull the contaminated air
cooking up into the kitchen hood intake, through
the hood exhaust and ducting, into the ESP, carbon module, any
transition ducting, the blower itself, and any additional ducting on the
exhaust side of the blower.
We can provide air filtration systems with
or without a blower. The actual blower and motor selection is
dependent on the air resistance of the entire network, including the hood,
transitions, air cleaning equipment, etc. The air resistance is termed
static pressure drop. An estimate of the static pressure
drop is needed in order to properly size and select the blower/motor
for the job site. Since we know the static pressure of our air
cleaning equipment, if we are supplying the blower, we will need an estimate
of the static pressure drop external to the air cleaning equipment. If
you are working with an engineer, that information should be available.
KITCHEN HOOD
EXHAUST AIR FILTRATION SYSTEMS TO MEET YOUR BUDGET
Our air cleaning equipment for commercial
kitchen hood exhaust filtration is available in a number of configurations
depending on your budget and space limitations:
- $ BASIC
The most basic system is to purchase the ESP, carbon module, and blower
components, separately, and then have a local
mechanical contractor provide transition ducting, wiring, and installation
at the site. This is a good approach when the facility
has limited space.
- $$ MODERATE
The next step up is to order the equipment consisting
of ESP, carbon module, and possibly blower, preassembled on steel
rails with transition ducting, if required, between the ESP and Carbon
module. If a blower is also supplied by us, it will additionally be
mounted on the steel rails with a transition duct between the carbon
module exhaust and blower inlet.
- $$$
ADVANCED
In self washing ESP systems, when mounted on steel rails, we can also
completely wire the system at the factory so an electrician
at the installation site only needs to bring
appropriate electrical power to a NEMA junction box on the air cleaning
equipment. All the required detail wiring
has already been completed.
Commercial Kitchen Hood Exhaust air cleaning,
purifying, scrubbing, filtering systems are available for interior
installation or exterior/rooftop installation with factory
fabricated and assembled weather enclosures.
Note: Some of these systems mounted on
steel rails with a blower can be quite long and wide. In some cases,
construction of the restaurant may necessarily need to
be paused until the commercial kitchen hood
exhaust air filtration system can be moved into position in the
kitchen, if installed in the interior of the facility.
EQUIPMENT AND SPECIFICATIONS
We have air cleaning equipment rated for 2,000,
4,000, and 8,000 or
more cubic feet per minute (CFM) air flows with operating efficiency of 95%
and up. In other words, at these air flows, each of the systems will
operate at 95% efficiency, however, as the air flow is reduced in each
system, the efficiency increases. This is a characteristic of ESP's.
In some cases, depending on airflow and efficiency
requirements, more than one ESP and/or odor module may be necessary.
Brochure: Commercial Kitchen
Hood Exhaust Air Cleaners Filters Scrubbers
Purifiers
Electrostatic
Precipitator (ESP) Specifications & Literature
- Model F72
Manual Cleaning ESP
- Autoclean/F61
Automatic Self-Cleaning ESP
-
Webpage
- Brochure
-
Manual
- Autoclean drawings: PDF pages 4-5
- Weights: PDF page 5
- Power: PDF page 6
- Efficiency vs. Airflow: PDF page 7
- Static Pressure Drop: PDF page 7
- Hot Water Usage: PDF page 12
- Wash Cycle Sequence: PDF page 17
- Maintenance: PDF page 18
- Warranty: PDF page 27
Odor Modules Specifications & Literature
- 1,000
CFM Carbon Module
-
2,000 CFM Carbon Module
-
4,000 CFM Carbon Module (5,400 CFM Carbon module
upgrade available)
Note: This module is illustrated with 20 one inch deep
trays holding a total of 180 lbs of coconut shell carbon, however, this
module is also available with 16 two inch deep trays holding a total of
288 lbs coconut shell carbon and rated for up to 5,400 CFM. Although
the interior layout of the trays is altered, the exterior chassis
dimensions are the same. The module is shown with a 65% filter on
one side, however, an upgrade is available so that the module may be
supplied with a 65% filter on both intake and exhaust sides of the module.
-
8,000 CFM Carbon Module
CHOOSING KITCHEN HOOD EXHAUST AIRFLOW
FYI:
Fundamentals of Kitchen Hood Exhaust
Design
EXAMPLE COMMERCIAL
KITCHEN HOOD EXHAUST SCRUBBER SYSTEM
The following drawing shows an example
commercial kitchen hood exhaust air filtration system, in blue, connected to
an 18 foot long hood, red, designed to operate at 300 CFM airflow per linear
foot for a total of 5,400 CFM. Interconnecting ductwork and transition
ducts are shown in gray.
The major components of
the system consist of the following:
- Autoclean 4000 self washing ESP
connected directly to the hood via ducting and
operating at 3600 CFM, below it's rated maximum of 4,000 CFM, to achieve
efficiencies in excess of 95% on smoke and mist.
- Autoclean 2000
self washing ESP connected directly to the hood via ducting
and operating at 1800 CFM, below it's rated maximum of 2,000 CFM, to
achieve efficiencies in excess of 95% on smoke and mist.
- Odor module
containing 16 two inch deep trays holding a total of 288 lbs of coconut
shell carbon to remove gases and odors.
- An existing blower to
pull the air through the hood, ducting, ESP's, Odor Module, and transition
ducts.
 |
EXAMPLE PHOTOS
(click photo to enlarge)
 |
 |
 |
Integrated Autoclean 4000 with carbon & blower on rails for
indoor installation
(95% ASHRAE @ 4,000 CFM) |
Integrated Autoclean 8000/4000 double pass with carbon &
blower on rails for outdoor installation
(99% ASHRAE @ 12,000 CFM) |
Integrated stacked F72B double pass system with carbon on
rails for indoor installation
(99% ASHRAE @ 8,000 CFM) |
| |
|
|
 |
|
|
Integrated F72B with carbon on rails
for indoor installation
(95% ASHRAE @ 4,000 CFM) |
|
|
Our
Air Cleaners are Rugged, Reliable, Proven.
|
 |
|
Our full line of interchangeable air cleaning
modules, blowers, and accessories allows us to economically tailor equipment
to match your specific requirements. In addition, modular construction
allows easy adaptation of existing air cleaning units to changing
circumstances. |
Let us use our many years of air cleaning experience to help
solve your indoor air quality problems and improve your productivity and
profitability.
We use proven technologies and a comprehensive range of
equipment to handle harmful airborne industrial contaminants, such as, welding
smoke, coolant mist, grinding dust, laser and plasma cutting smoke, carbon dust,
and gaseous contaminants. Our industrial air cleaning equipment is easily
user-installed and is available for general background air cleaning or for
source capture applications (portable, ducted, and machine tool-mounted).
Solidly built for heavy industrial use, our air cleaning
equipment is tough, reliable, and easy to maintain.
With this
experience, we are properly positioned to provide a solution to address your
commercial kitchen hood exhaust filtration requirements.
Contact us today.
What we need from you:
When you inquire about our commercial
kitchen hood exhaust air scrubbers, cleaners, purifiers,
filters systems for cooking smoke, mist, and odors,
please have the following information available:
- Required Kitchen Hood
Exhaust Airflow, hopefully blessed by an engineer.
- Do you want us to
supply the blower?
If you want us to provide the blower, please have the static pressure drop
of the hood and associated ducting, excluding the air cleaning equipment.
This is available from your engineer.
- Please tell us if you
want an interior installation or exterior/rooftop installation.
- Do you want manually or automatically
cleaning electronic air filtration equipment?
- Available electrical
power: voltages & phases
- Space limitations
- Do you want the Basic,
Moderate, or Advanced system outlined on this page above?
- Is solid fuel used in
the cooking equipment, such as coal, charcoal, or wood for a pizza brick
oven??
Common Questions
regarding Fire Suppression:
-
Q: Do
you offer a system with a pre-piped fire protection system (ANSUL) and do
you offer a cabinet (remote) for storage of the ANSUL tanks? If you do not
offer a pre-piped fire protection system, is there an acceptable way for our
fire protection division to install our own ANSUL system with heads inside
of the cabinet?
-
A: We
do not pre-pipe for ANSUL. In general, the heads are installed in the
ductwork and/or transitions of the Kitchen Hood Exhaust Air Filtration
System commonly referred to as Pollution Control Unit (PCU), not directly
in the Electrostatic Precipitator (ESP) Autoclean/F61/F72 cabinet.
This allows the installer more freedom in locating the heads.
Click Here
for more information
|
