PLATE TYPE HEAT EXCHANGER, GAS GAS HEAT EXCHANGER, AIRPREHEATER, EXHAUST GAS HEAT EXCHANGER

HEAT EXCHANGER, PLATE TYPE, AIRPREHEATER. HEAT RECOVERY, DIOXINS PROTECTION IN TOWN SCALE INCINERATOR

OKURA INTEX CO., LTD.

2-19-3-503 HIGASHI-GOTANDA SHINAGAWA-KU, TOKYO 141-0022, JAPAN

TEL:81-3-3445-3988 FAX: 81-3-3445-6657 E-MAIL:okuraintex@aol.com

　SPANISH

HEAT EXCHANGER, PLATE TYPE, AIRPREHEATER, HEAT RECOVERY,

COOLING TOWER FOR PROTECTION FOR DIOXINＳ

GENERAL

HEAT EXCHANGER FOR GAS AND GAS: MAX TEMP. 900 DEG C AT PRESSURE:500 mmAq, 600 DEG C AT 1,000 mmAq

DUE TO A LIGHT AND COMPACT UNIT STRUCTURE, CAPAACITY EXPANSION IS SIMPLE AND A LARGE VOLUME OF GAS CAN BE

HANDLED. THE GAS PATCH STRUCTURE IS FREELY SELECTABLE FOR EASY INSTALLATION.

THE ULTRA THIN BOARD STRUCTURE OFFERS A HIGH EFFICINCEY ( 0.8 OR 1.0 MM STANDARDTHICKNESS)

THERMAL STRESS CONCENTRATION UPON THE STRUCTURE, HIGH TEMP. AND HIGH PRESSURE GASES CAN BE HANDLED.

THE WHOLE-WELDING AND AIR-TIGHT STRUCTURE PREVENT THE LEAKAGE OF EXHAUST GAS AND ORDER MIXING.

THE STRUCTURE FACILITATES MAINTENACE AND CLEANING, DAMAGED ELEMENTS CAN REPAIRED CAN BE REPAIRED AND

THE UNIT CAN BE REPLACED ON THE SPOT LIKE 1/4 UNIT ONLY..

MATERIALS

TEH MAIN MATERIALS OF HEAT EXCHANGING ELEMENT: S.S. 304, SS310S, S.S. 302B. S.S.316, S.S.316L, S.S.400,

NAS 155N( SPECIAL MATERILAL FOR ANTI-CORROSIVE FOR SOX GAS/H2SO3), HATELLOY, ETC.

THICKNESS: 0.8 OR 1 mm - 7 mm

SUPPLY RECORDS

-AIRPREHEATER FOR FURNACE- REFINERY COMPANIES, CHEMICAL COMPANIES ( MAINLY

THROUGH ENGINEERING COMPANIES)

-EXHAUSE GAS COOLING TOWER, PROTECTION FOR OCCURING DIOXINS IN: VARIOUS TOWN SCALE INCINERATORS

-HEAT RECOVERY AND DEORDORIZATION OF DIRECT FIRING FOR ASPHALTE RECYCLING PLANT

-HEAT RECOVERY OF VAPOUR FOR PAPER INDUSTRIES

-HEAT RECOVERY OF VAPOUR KETTLE AS ULTRABAN CONDENSER FOR BEER INDUSTIRES.

-HEAT RECOVERY AND PROTECTION FOR OCCURING WHITE SMOKE FOR DE-NOX AND DE-SOX

PLANT

-HEAT RECOVERY & AIRPREHEATER FOR BOILER

-HEAT RECOVERY AND MAKING HOT WATER , ENGINE COOLING FOR CO-GENERATION PLANT OF

DIESEL GENERATOR

CHARACTERISTICS

MANY SUPPLY RECORDS OF OVER 500 UNITS FOR MORE THAN 20 YEARS

COMPACT EQUIPMENT WITH SMALL INSTALLATION SPACE

MANY EXPERIENCE FOR HEAT EXCHANGIN OF HIGH CORROSIVE GAS ( SOX, ETC)

MANY EXPERIENCE FOR HIGH DUST(ASH) GAS , WITH EQUIPMENT FOR RAKING OUT DUST ( ASH)

PLEASE CONTACT TO FOLLOWINGS

OKURA INTEX CO., LTD.

2-19-3-503, HIGASHI-GOTANDA, SHINAGAWA-KU, TOKYO 141-0022

JAPAN

TEL: 81-3-3445-3988, FAX: 81-3-3445-6657, E:MAIL : okuraintex@aol.com

PERSON IN CHARGE: T. ONUMA

PLEASE INFORM FOLLOWING SPEC FOR OUR OFFERING OUR QUOTATION. IN CASE THAT YOU GIVE US YOUR ENQUIRY

FOR THE GAS GAS HEAT EXCHANGER

HIGH TEMP. EXHAUST GAS :: FLOW VOLUME( ? M3/MIN OR M3/HR. OR KG/HR.). INLET TEMP.( ? DEG C), OUTLET TEMP.( ? DEG C).

CHEMICAL COMPOSITION OF THE GAS, CONTENT OF DUST ( ? PPM)

LOW TEMP GAS OR AIR:: FLOW VOLUME ( ? M3/MIN. OR M3/HR, OR KG/HR.), INLET TEMP.( ? DEG C), OUTLET TEMP( ? DEG C)

CHEMICAL COMPOSITION, CONTENT OF DUST ( ? PPM)

ALLOWABLE PRESSURE LOSS (DELTA P.) IN GASES OR AIR , IF ANY. .

NAXIMUM AND MINIMUM GAS FLOW

DETAILED EXPLANATION

THERE ARE FOLLOWING FOUR TYPES OF OUR HEAT EXCHANGER

N-TYPE( NORMAL TYPE)

AS A MATERIAL, SURFACE-TREATED COLD COLD ROLED STEEL OR PLANE COLD ROLLED STEEL IS USED. AIR-TIGHTNESS IS NOT AS GOOD AS THAT OBTAINABLE WITH -T-TYPE, BUT THIS TYPE OFFER THE LOWEST PRICE.

T-TYPE(TIGHT TYPE)

COLD ROLLED STEEL, STAINLESS STEEL, COPPER ALLOY SHEET OR ALUMINIUM ALLOY SHEET IS USED. ITS WHOLE-WELDING STRUCTURE OFFERS PERFECT AIR-TIGHTNESS FOR APPLICATION FOR ANY KIND OF GAS.

C-TYPE( CONTROLLABLE TYPE)

A SPECIAL PATH IS PROVIDED TO CONTROL THE TEMPERATURE OF A GAS COMING OUT OF THEAT EXCHANGER WITHOUT CHANGING GAS FLOW. HOWEVER, AS STANDARD UNITS, ONLY T-TYPE IS PROVIDED WITH THIS FEATURE.

S-TYPE(SEPARABLE TYPE)

THIS TYPE IS CAPABLE OF SIMULTANOUSLY HANDLING MANY TYPE OF GASES WITHOUT MIXING THEM. HOWEVER, AS DTANDARD UNITS, ONLY T-TYPE IS PROVIDED.

BASIC STRUCTURE

NOTE: ARROW INDICATE GAS FLOWDIRECTION, X: HIGH TEMP. GAS, Y:FRESH AIR

HEAT RESISTANCE STRUCTURE

IN GENERAL, VERY COMPLEX THERMAL STRESS ARE APPLIED ON VARIOUS PARTS OF A HEAT EXCHANGER. OUR HEAT EXCHANGER IS SO DESIGINED TO ABSORB THERMAL STRESS, UNIT BY UNIT, INTO THE INSIDE OF THE UNIT. THE CHARACTERISTIC OF ULTRA THIN SHEETS WITH ARE WEAK TO STRETCHING STRESS, IS VERY EFFECTIVELY USED.

THERMAL STRESS ON THE ELEMENT IS DISPERSED THROUGH THE DEFORMATION OF THE ELEMENT SPAN AS SHOWN IN ABOVE A . THERMAL STRESS ON THE ELEMENT END IS RELIEVED THROUGH THE DEFORMATION OF THE UNIT CONNECTING PARTS AS SHOWN IN ABOVE B. IN THE FLOW PATH, COLD WIND FLOWS THROUGH THE GAP BETWEEN THE SIDE WALL AND THE ELEMENT AS ABOVE C.THUS, THE SIDE WALL TEMP. IS MAINTEINED LOW AND A HEAT-KEEPING EFFECT IS OBTAINED. ABOVE B-1 LOOKS AT THE ENTIRE UNIT FROM THE HOT WIND SIDE. WHEN HOT WIND PASES, TWO OR THREE ELEMENTS CLOSE TO THE SIDE WALL ARE DEFORMED, AS SHOWN ABOVE D-2, TO DISPERSE THERMAL STRESS CAUSED BY TEMP. DIFFERENCE BETWEEN THE SIDE WALL AND THE ELEMENTS. ON THE OTHER ELEMENT, THE DEFORMATION SHOWN IN ABOVE B OCCURS TO CUASE ALMOST NO DEFORMATION ON THE ELEMENTS THEMSELVES.

WEAR-RESISTANCE AND CORROSION-RESISTANCE STRUCTURE

ELEMENT ANDS ARE WELDED WITH 60 DEG VERTICAL ANGLE AS SHOWN IN ABOVE. AS THE RESULT, WEAR-RESISTING CHARACTERISTIC HAS BEEN CONSIDERABLY IMPROVED AGAINST DUST, ETC. THERE ARE OPTIONAL GUARDS FOR APPLICATIONS WITH AN ESPECIALLY LARGE AMOUNT OF WEAR-CAUSING DUST. THE GUARDS ARE ALOS EFFECTIVE TO PREVENT CORROSION.

EXAPLE OF OUR HEAT EXCHANGER COMBINATION

AS SHOWN IN UNDER, VARIOUS COMBINATIONS ARE POSSIBLE.

CONCRETE APPLICATIONS

HEAT COLLECTION FROM EXHAUST GAS CONTAINING ORDER AND/OR HARMFUL GAS

HEAT COLLECTION IN VARIOUS INDUSTRIAL PROCESSES IN FOOD, CHEMICAL, TEXILE, PLASTICS, PAPER, PILP, METAL INDUSTRIES,

AIR PREHEATING FOR INDUSTRIAL FURNACE AND ASPHALT RECYCLING PLANT.

HOT-AIR DRYING FACILITIES

ORDER-REMOVING FACILITIES, INCINARATOR, OTHER POLLUTION PREVENTING FACILITIES

AIR-CONDITIONING SYSTEM, BIO-CLEANING SYSTEM.

OUR STANDARD HEAT EXCHANGER

STANDARD BASIC UNIT IS AS FOLLOW. OTHER UNITS ARE OFFERED UPON REQUEST.

ELEMENT STANDARD SHEET THICKNESS: 1 MM

MATERIAL USED: COLD ROLLED STEEL, SURFACE-TREATED COLD ROLLED STEEL, STAINLESS STEEL, ALUMINIUM ALLOY SHEET,

TITANIUM SHEET, HASTELLOY SHEET, ETC.