DDI Heat Exchangers Inc.
Dollard-Des-Ormeaux, QC
Company Overview
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.
- 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
- Smaller foot print then Tube. Less area required (about 1/3).
Please see at http: //www. ddi-heatexchangers. com/compts. htm, # 3
- More Turbulence flow then in Tube or Spiral.
i. e. better Heat Transfer due to zigzag channels.
- Non-Block design, (no spacers or obstacles as in Spiral type
http: //www. ddi-heatexchangers. com/CompSpiral. htm ).
- Gaps of 3 Inches Minimum, i. e. No Sludge Blockage.
- No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450, 560 $, in 20 years. http: //www. ddi-heatexchangers. com/pcompare. htm
- Both sides have doors, with full access to internals.
- Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- Modular system, Can be used for Water-to-Sludge or
Sludge-to-Sludge Heat Recovery. (Back up units, while not in use, could Be utilized as Sludge to Sludge Heat Recovery)
- THICKNESS of minimum 0.25 which allows for Corrosion
And ABRASIONS as well. (Tube HX has sometimes just 1/16 or 1/8 thick inner tube from Stainless Steel, it is OK against corrosion but NOT ENOUGH allowance against abrasive flow???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
Company Information
Physical Address
305 Baffin St.
Dollard-Des-Ormeaux, QC H9A 3G4
CA
Mailing Address
305 Baffin St.
Dollard-Des-Ormeaux, QC H9A 3G4
CA
Additional Details
Legal Name: DDI Heat Exchangers Inc.
Number of Employees: 10
Total Sales ($CDN): $100,000 - $200,000
CA
Advantages Of 'Cube' Non-Plug Heat Exchanger
- Larger Circumference compared to Tube (round)
For same flow, LARGER Heat Transfer Area.
- Smaller foot print then Tube i. e. Less Area required.
- More Turbulence flow then in Tube or Spiral. i. e. better
Heat Transfer in counter flow zigzag channels
- Non-Block design, no Spacers as in Spiral type.
- Gaps of 2, 3, 4 Inches Min, no sludge blockage.
- No need for expensive Macerator + Blades to grind sludge.
- Both sides have doors with full access to internals.
- Tested for 6 years with NO need to open doors even once.
Advantages Of DDI 'Cube', Square Non-Block Heat Exchanger and Heat RECOVERY Systems.
- 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
- Smaller foot print then Tube. Less area required (about 1/3).
Please see at http: //www. ddi-heatexchangers. com/compts. htm, # 3
- More Turbulence flow then in Tube or Spiral.
i. e. better Heat Transfer due to zigzag channels.
- Non-Block design, (no spacers or obstacles as in Spiral type
http: //www. ddi-heatexchangers. com/CompSpiral. htm ).
- Gaps of 3 Inches Minimum, i. e. No Sludge Blockage.
- No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450, 560 $, in 20 years. http: //www. ddi-heatexchangers. com/pcompare. htm
- Both sides have doors, with full access to internals.
- Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
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.
We at DDI-HeatExchangers have designed an application for you to calculate the potential energy savings. It is a small (. EXE) file that you can download by clicking here.
ENERGY ECONOMIC EVALUATION OF HEAT RECOVERY EXCHANGER change to fit sample 1 sample 2 sample 3 sample 4 YOUR Own data Heat Recovery Exchanger in BTUH 1, 000, 000 2, 000, 000 2, 500, 000 3, 000, 000 1, 500, 000 g3
Electricity Gaz Gaz Electricity Gaz & Electricity Rate $ / 1, 000, 000 BTU 10.84 3.11 3.11 10.84 7 g6 (about 3 $ gaz per 1, 000, 000 BTU or 10$ electricity
Hours per day 24 24 24 24 24 g9 Days used in one year 365 365 270 240 365 g10 Boiler efficiency % (lost energy of gaz heater) 95 80 80 95 90 g11
================================================== ================================================== == ----------------------------- Total $ Dollars SAVED in ONE YEAR $ 99, 956 $ 68, 109 $ 62, 978 $ 197, 174 $ 102, 200 g13 **
Years 15 15 15 15 15 g16
Total US $ SAVED in 15 years $ 1, 499, 343 $ 1, 021, 635 $ 944, 663 $ 2, 957, 608 $ 1, 533, 000 g18
** calculations= (G6*G3/1000000)*G9*G10* (100/G11)
Natural Gaz 1 cubic meter = 35, 910 BTU Natural Gaz 1 cubic meter = 0.18 Can $ Natural Gaz 1 cubic meter = 0.11 US $
Electricity 1 KWH = 3, 413 BTU Electricity 1 KWH = 0.037 US$
Assuming cost of energy will not go up in the future? 1, 000, 000 BTU = $ 3.11 US$ If NATURAL GAZ It is more likely that it will be even more expensive 1, 000, 000 BTU = 293 KWH = $ 10.84 US$ If ELECTRICITY
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
manufacture to ASME spec
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
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.
Comparing DDI Cube or Square Heat Recovery to competition.
Since DDIs Heat Recovery System has a Minimum Gap of 2.75' on both sides (to avoid blockage) it makes no difference which side has Water or Sludge, or even both sides could have Sludge (for Heat Recovery).
We achieved our NON-PLUG design (compared to the Spiral design) via large GAPS, NO OBSTACLES and ROUND CURVES.
DDI has achieved the possibility of having THE SAME FLOW in both sides (for Heat Recovery), compared to Tube and Shell exchangers which cannot do it (see the SURFACE Heat Transfer area and FLOW area Comparisons).
DDIs overall size is SMALLER then the Tube and Shell and does not require Grinders or Macerators (adds 200, 000$ in 10 years) as the Spiral design does.
We have had 12 Engineers working for many years to come up with this design and to TEST it in real life with working units.
Antoine Laporte Division Chief - Division of Wastewater, City of Repentigny
Corporate Expertise:
----------------------- Since DDIs Heat Recovery System has a Minimum Gap of 3'
Corporate Language Capabilities:
----------------------- English, English or French, French, Hungarian,
Proj: US Heat Recovery Country: United States Contribution:
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.
Contacts
Erwin Schwartz
Title: President
Area of Responsibility: Management Executive
Phone: Show phone
Fax: Show fax
Products
-
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.
- 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
- Smaller foot print then Tube. Less area required (about 1/3).
Please see at http: //www. ddi-heatexchangers. com/compts. htm, # 3
- More Turbulence flow then in Tube or Spiral.
i. e. better Heat Transfer due to zigzag channels.
- Non-Block design, (no spacers or obstacles as in Spiral type
http: //www. ddi-heatexchangers. com/CompSpiral. htm ).
- Gaps of 3 Inches Minimum, i. e. No Sludge Blockage.
- No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450, 560 $, in 20 years. http: //www. ddi-heatexchangers. com/pcompare. htm
- Both sides have doors, with full access to internals.
- Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
-
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.
- 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
- Smaller foot print then Tube. Less area required (about 1/3).
Please see at http: //www. ddi-heatexchangers. com/compts. htm, # 3
- More Turbulence flow then in Tube or Spiral.
i. e. better Heat Transfer due to zigzag channels.
- Non-Block design, (no spacers or obstacles as in Spiral type
http: //www. ddi-heatexchangers. com/CompSpiral. htm ).
- Gaps of 3 Inches Minimum, i. e. No Sludge Blockage.
- No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450, 560 $, in 20 years. http: //www. ddi-heatexchangers. com/pcompare. htm
- Both sides have doors, with full access to internals.
- Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- 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.
- 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
- Smaller foot print then Tube. Less area required (about 1/3).
Please see at http: //www. ddi-heatexchangers. com/compts. htm, # 3
- More Turbulence flow then in Tube or Spiral.
i. e. better Heat Transfer due to zigzag channels.
- Non-Block design, (no spacers or obstacles as in Spiral type
http: //www. ddi-heatexchangers. com/CompSpiral. htm ).
- Gaps of 3 Inches Minimum, i. e. No Sludge Blockage.
- No need for expensive Macerator & Blades to grind Sludge.
Savings of about 450, 560 $, in 20 years. http: //www. ddi-heatexchangers. com/pcompare. htm
- Both sides have doors, with full access to internals.
- Designed for Optimum Height (Non Plug) for each liquid,
9)Designed for Optimum Width, best FAST flows speed, to avoid BAKING.
- Quotes with Viscosity =1 CPS as others, and with
Computerized, assumed, more realistic Viscosities 4-40 CPS.
- VERY LOW MAINTENANCE, once in a few years.
(Some competition requires back flush every shift).
- Can be used in Municipal, Agriculture or Pulp & Paper.
- Can be manufactured from different metals or alloys.
- 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)
- 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???)
- HEAT RECOVERY, can have Payback within a year.
http: //www. ddi-heatexchangers. com/energy, savings. htm
- Tested, in continues Use for 9 years in North America,
Was NO need to open doors, nor for any maintenance.
- Telecommunications Equipment, Nes
NAICS Categories
- 332410 Power Boiler and Heat Exchanger Manufacturing
- 333416 Heating Equipment and Commercial Refrigeration Equipment Manufacturing
- 417310 Computer, Computer Peripheral and Pre-Packaged Software Wholesaler-Distributors
Additional Information
332410, 333416, 417310
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