DDI Heat Exchangers Inc.
DDI is a well-established company (since 1980) experienced in
the design and manufacture of plate type
CUBE, NON-PLUG ABLE, Heat Exchangers specifically
suitable for Heat Recovery applications,
from liquid waste materials containing large size solids such
as municipal sludges & other processes.
Our unique Heat Exchanger & Recovery design was developed
with an input of large capital and R&D investment,
& solutions provided by several top design Engineers working
on R&D with the Government help & encouragement.
In every industry the Heat Recovery and Energy savings have
become even more critical.
DDI has designed and installed Sludge Heat Exchangers that have
been in operations for as long as 10 (Ten) years without the
need for any maintenance.
We are Seeking sales representatives
Our specialized type of HEAT EXCHANGERS destined for:
A) Recovery of Wasted Heat in Sewage Treatment Plants (or other
industries), by preheating of
Raw sludge
with the outgoing sludges.
B) Preheating of Raw Sludge with hot liquid before introduction
to the anaerobic digesters.
C) Cooling of Digested Sludge.
The cost for this innovative Heat Recovery Equipment could be
recovered within a few years, allowing for substantial
Savings to the Municipality or Industry, year after year.
With the use of DDI equipment, ENVIRONMENTAL benefits can be
realized together with Reduced Maintenance Costs.
Advantages Of DDI 'Cube', Square Non-Block
Heat Exchanger and Heat RECOVERY Systems.
1) Larger Circumference compared to Tube in Shell (round).
For the same flows area, LARGER Heat Transfer Surface.
Please see at http://www.ddi-heatexchangers.com/compts.htm
2) Smaller foot print then Tube. Less area required (about 1/3).
Please see at http://www.ddi-heatexchangers.com/compts.htm , # 3
3) More Turbulence flow then in Tube or Spiral.
I.e. better Heat Transfer due to zigzag channels.
4) Non-Block design, (no spacers or obstacles as in Spiral type
http://www.ddi-heatexchangers.com/CompSpiral.htm ).
5) Gaps of 3 Inches Minimum, i.e. No Sludge Blockage.
6) No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450,560 $, in 20 years.
http://www.ddi-heatexchangers.com/pcompare.htm
7) Both sides have doors, with full access to internals.
8) Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
10) Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
11) VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
12) Can be used in Municipal, Agriculture or Pulp & Paper.
13) Can be manufactured from different metals or alloys.
14) Modular system, Can be used for Water-to-Sludge or
Sludge-to-Sludge Heat Recovery. (Back up units, while not in use, could
Be utilized as Sludge to Sludge Heat Recovery)
15) THICKNESS of minimum 0.25 which allows for Corrosion
And ABRASIONS as well.
(Tube HX has sometimes just 1/16 or 1/8 thick inner tube from Stainless Steel,
it is OK against corrosion but NOT ENOUGH allowance against abrasive flow???)
16) HEAT RECOVERY, can have Payback within a year.
http://www.ddi-heatexchangers.com/energy_savings.htm
17) Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
Company Details
Year Established:
1980
Total Sales ($CDN):
$1,000,000 - $5,000,000
Number of Employees:
10
Company Information
Erwin Schwartz
Title:
President
Area of Responsibility:
Management Executive
Telephone:
(514) 696-7961
Fax:
(514) 696-8344
Products
Telecommunications Equipment, Nes
Heat Exchanger, Industrial, Nes
Our specialized type of HEAT EXCHANGERS destined for:
A) Recovery of Wasted Heat in Sewage Treatment Plants (or other
industries), by preheating of
Raw sludge
with the outgoing sludges.
B) Preheating of Raw Sludge with hot liquid before introduction
to the anaerobic digesters.
C) Cooling of Digested Sludge.
The cost for this innovative Heat Recovery Equipment could be
recovered within a few years, allowing for substantial
Savings to the Municipality or Industry, year after year.
With the use of DDI equipment, ENVIRONMENTAL benefits can be
realized together with Reduced Maintenance Costs.
Advantages Of DDI 'Cube', Square Non-Block
Heat Exchanger and Heat RECOVERY Systems.
1) Larger Circumference compared to Tube in Shell (round).
For the same flows area, LARGER Heat Transfer Surface.
Please see at http://www.ddi-heatexchangers.com/compts.htm
2) Smaller foot print then Tube. Less area required (about 1/3).
Please see at http://www.ddi-heatexchangers.com/compts.htm , # 3
3) More Turbulence flow then in Tube or Spiral.
I.e. better Heat Transfer due to zigzag channels.
4) Non-Block design, (no spacers or obstacles as in Spiral type
http://www.ddi-heatexchangers.com/CompSpiral.htm ).
5) Gaps of 3 Inches Minimum, i.e. No Sludge Blockage.
6) No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450,560 $, in 20 years.
http://www.ddi-heatexchangers.com/pcompare.htm
7) Both sides have doors, with full access to internals.
8) Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
10) Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
11) VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
12) Can be used in Municipal, Agriculture or Pulp & Paper.
13) Can be manufactured from different metals or alloys.
14) Modular system, Can be used for Water-to-Sludge or
Sludge-to-Sludge Heat Recovery. (Back up units, while not in use, could
Be utilized as Sludge to Sludge Heat Recovery)
15) THICKNESS of minimum 0.25 which allows for Corrosion
And ABRASIONS as well.
(Tube HX has sometimes just 1/16 or 1/8 thick inner tube from Stainless Steel,
it is OK against corrosion but NOT ENOUGH allowance against abrasive flow???)
16) HEAT RECOVERY, can have Payback within a year.
http://www.ddi-heatexchangers.com/energy_savings.htm
17) Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
Heat Exchangers
Heat Exchangers and Heat RECOVERY for liquids and
liquids containing solids for the Sewage treatment or other
industries.
See our web site at www.ddi.ca
Advantages Of DDI 'Cube', Square Non-Block
Heat Exchanger and Heat RECOVERY Systems.
1) Larger Circumference compared to Tube in Shell (round).
For the same flows area, LARGER Heat Transfer Surface.
Please see at http://www.ddi-heatexchangers.com/compts.htm
2) Smaller foot print then Tube. Less area required (about 1/3).
Please see at http://www.ddi-heatexchangers.com/compts.htm , # 3
3) More Turbulence flow then in Tube or Spiral.
I.e. better Heat Transfer due to zigzag channels.
4) Non-Block design, (no spacers or obstacles as in Spiral type
http://www.ddi-heatexchangers.com/CompSpiral.htm ).
5) Gaps of 3 Inches Minimum, i.e. No Sludge Blockage.
6) No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450,560 $, in 20 years.
http://www.ddi-heatexchangers.com/pcompare.htm
7) Both sides have doors, with full access to internals.
8) Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
10) Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
11) VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
12) Can be used in Municipal, Agriculture or Pulp & Paper.
13) Can be manufactured from different metals or alloys.
14) Modular system, Can be used for Water-to-Sludge or
Sludge-to-Sludge Heat Recovery. (Back up units, while not in use, could
Be utilized as Sludge to Sludge Heat Recovery)
15) THICKNESS of minimum 0.25 which allows for Corrosion
And ABRASIONS as well.
(Tube HX has sometimes just 1/16 or 1/8 thick inner tube from Stainless Steel,
it is OK against corrosion but NOT ENOUGH allowance against abrasive flow???)
16) HEAT RECOVERY, can have Payback within a year.
http://www.ddi-heatexchangers.com/energy_savings.htm
17) Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
Heat Exchanger / Heat Recovery
DDI is a well-established company (since 1980) experienced in
the design and manufacture of plate type
CUBE, NON-PLUG ABLE, Heat Exchangers specifically
suitable for Heat Recovery applications,
from liquid waste materials containing large size solids such
as municipal sludges & other processes.
DDI has designed and installed Sludge Heat Exchangers that have
been in operations for as long as 7 (seven) years without the
need for any maintenance.
We are Seeking sales representatives
Our specialized type of HEAT EXCHANGERS destined for:
A) Recovery of Wasted Heat in Sewage Treatment Plants (or other
industries), by preheating of
Raw sludge
with the outgoing sludges.
B) Preheating of Raw Sludge with hot liquid before introduction
to the anaerobic digesters.
C) Cooling of Digested Sludge.
The cost for this innovative Heat Recovery Equipment could be
recovered within a few years, allowing for substantial
Savings to the Municipality or Industry, year after year.
With the use of DDI equipment, ENVIRONMENTAL benefits can be
realized together with Reduced Maintenance Costs.
Advantages Of DDI 'Cube', Square Non-Block
Heat Exchanger and Heat RECOVERY Systems.
1) Larger Circumference compared to Tube in Shell (round).
For the same flows area, LARGER Heat Transfer Surface.
Please see at http://www.ddi-heatexchangers.com/compts.htm
2) Smaller foot print then Tube. Less area required (about 1/3).
Please see at http://www.ddi-heatexchangers.com/compts.htm , # 3
3) More Turbulence flow then in Tube or Spiral.
I.e. better Heat Transfer due to zigzag channels.
4) Non-Block design, (no spacers or obstacles as in Spiral type
http://www.ddi-heatexchangers.com/CompSpiral.htm ).
5) Gaps of 3 Inches Minimum, i.e. No Sludge Blockage.
6) No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450,560 $, in 20 years.
http://www.ddi-heatexchangers.com/pcompare.htm
7) Both sides have doors, with full access to internals.
8) Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
10) Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
11) VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
12) Can be used in Municipal, Agriculture or Pulp & Paper.
13) Can be manufactured from different metals or alloys.
14) Modular system, Can be used for Water-to-Sludge or
Sludge-to-Sludge Heat Recovery. (Back up units, while not in use, could
Be utilized as Sludge to Sludge Heat Recovery)
15) THICKNESS of minimum 0.25 which allows for Corrosion
And ABRASIONS as well.
(Tube HX has sometimes just 1/16 or 1/8 thick inner tube from Stainless Steel,
it is OK against corrosion but NOT ENOUGH allowance against abrasive flow???)
16) HEAT RECOVERY, can have Payback within a year.
http://www.ddi-heatexchangers.com/energy_savings.htm
17) Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
Services