Nantong Fareast Chemical Equipment Co. LTD
Graphite Heat Exchanger
Product Description
Heat transfer takes place in solid graphite blocks with a crosswise arrangement of drilled flow passages for the process and service side. The size of the graphite blocks and the passage diameters vary according to the application and type of graphite chemical equipment concerned. Several graphite blocks are assembled to form a graphite column, which provides the required heat transfer area in a single unit. The graphite blocks are arranged in such a way that the product passages aligns with one another. As a result, corrosive medium flows through the axial passages. The service medium in the steel or graphite shell space passes through the horizontal passages. A flexible baffle cage produces forced flow deflection on the service side.
Specification of Block Graphite Heat Exchangers:
- Heat Transfer Area: 0.3 ~ 5 Sq. M
- Design Pressure: < 0.5 MPa
Block Graphite Heat Exchangers - YK series:
The main reason for employing block type graphite heat exchangers is their great flexibility. Block Graphite Heat Exchangers can be used for all heat transfer and mass transfer process involving corrosive media. We offer system-based, multi kind of block graphite heat exchangers with convincing advantages:
- Rapid replacement of damaged graphite blocks due to compact modular design
- Graphite high thermal efficiency
- Easy maintenance (easy cleaning and graphite block replacement) allowing simple dismantling and assembly
- Suitability for corrosive media on both process and service sides, depending on design
Structure Characteristic of Block Graphite Heat Exchangers:
- Rapid replacement of damaged graphite blocks due to compact modular design
- Graphite high thermal efficiency
- Easy maintenance (easy cleaning and graphite block replacement) allowing simple dismantling and assembly
- Suitability for corrosive media on both process and service sides, depending on design
Structure Characteristic of Block Graphite Heat Exchangers:
Heat transfer takes place in solid graphite blocks with a crosswise arrangement of drilled flow passages for the process and service side. The size of the graphite blocks and the passage diameters vary according to the application and type of graphite chemical equipment concerned. Several graphite blocks are assembled to form a graphite column, which provides the required heat transfer area in a single unit. The graphite blocks are arranged in such a way that the product passages aligns with one another. As a result, corrosive medium flows through the axial passages. The service medium in the steel or graphite shell space passes through the horizontal passages. A flexible baffle cage produces forced flow deflection on the service side.
Specification of Block Graphite Heat Exchangers:
- Max. heat transfer area of block graphite heat exchangers: 400 Sq. M
- Design temperature: -25 ~ 165 oC
- Design pressure: 0.4 MPa
- Tailor-made is available on request
Application of Block Graphite Heat Exchangers:
- Design temperature: -25 ~ 165 oC
- Design pressure: 0.4 MPa
- Tailor-made is available on request
Application of Block Graphite Heat Exchangers:
Since block graphite heat exchangers are compact and very adaptable, Block graphite heat exchangers are mainly used as:
- Overhead graphite condensers and graphite coolers, e.g. on absorption and separation columns
- Steel pickling line heaters
- Reactor coolers
- Ventilation graphite condensers and graphite coolers on agitators and reaction vessels
- Circulation coolers for quenchers
- Preheater for evaporators
- Overhead graphite condensers and graphite coolers, e.g. on absorption and separation columns
- Steel pickling line heaters
- Reactor coolers
- Ventilation graphite condensers and graphite coolers on agitators and reaction vessels
- Circulation coolers for quenchers
- Preheater for evaporators
Shell and Tube Graphite Heat Exchangers - GH series:
The standard shell and tube graphite heat exchangers comprises a steel shell enclosing a graphite tube bundle fitted with end covers. Because of the differences in their coefficients of thermal expansion, (steel expands 2-3 times as much as graphite) the differential expansion between the steel shell and the graphite tube bundle is taken up by the externally packed floating tube sheet. This compensate expansion and contraction of the shell over the graphite tube bundle.
The graphite tube bundle is held in the shell by the stud holding the fixed tube sheet to the fixed end shell flange. These bolts remain in place to ensure that the graphite tube bundle is restrained whenever the graphite heat exchangers is in service, or subjected to pressure testing, or whenever the graphite heat exchangers is moved. The fixed end cover is fixed to the fixed tube sheet by the stud between the pressure plate and the fixed end shell flange.
The floating end cover is held against the floating tube sheet by the stud between the pressure plate and the floating tube sheet flange. This flange holds a split ring, which is located in the groove in the floating tube sheet. Floating Head Sliding Gland seals the shell and floating tube sheet employing a stuffing box.
The floating end cover is held against the floating tube sheet by the stud between the pressure plate and the floating tube sheet flange. This flange holds a split ring, which is located in the groove in the floating tube sheet. Floating Head Sliding Gland seals the shell and floating tube sheet employing a stuffing box.
Shell and Tube Graphite Heat Exchangers Specification:
Shell-and-tube graphite heat exchangers are constructed from the following components:
- Graphite tube in standard dimensions of 22/32, 25/37 and 36/50 mm
- Standard graphite tube lengths up to 6 M
- Two graphite tube sheets--one fixed and the other floating, relative to the shell
- Large heat transfer areas of Shell and Tube Graphite Heat Exchanger (over 1,000 m2)
- Standard graphite tube lengths up to 6 M
- Two graphite tube sheets--one fixed and the other floating, relative to the shell
- Large heat transfer areas of Shell and Tube Graphite Heat Exchanger (over 1,000 m2)
On this basis, shell and tube graphite heat exchangers are used as graphite heaters, graphite coolers, graphite condensers, graphite falling film absorbers and graphite evaporators.
Cubic Block Graphite Heat Exchangers - JK series:
The Block Model is a cubic & rectangle graphite block with alternate rows of holes passing perpendicular to one another through the block as a stack structure. The graphite block is held between two clamp plates and two graphite block process headers complete with backing plates, pressure pads, studs and gaskets under a pre-set compressive load. Cubic Block Graphite Heat Exchangers have extensive use as condensers and liquid to liquid heat transfer equipments. Cubic Block Graphite Heat Exchangers advantage results from the rapid assembly and disassembly in plants. In addition, this version is very service friendly and is particularly easy to maintain.
Specification of Cubic Block Graphite Heat Exchangers:
Specification of Cubic Block Graphite Heat Exchangers:
- Design temperature: -20 ~ 150 oC
- Design pressure: 0.3 MPa
- Design pressure: 0.3 MPa
Squirrel-cage Graphite Heat Exchanger:
Except normal type graphite heat exchangers, other type graphite heat exchangers for special application is also available, include:
- Immersion Graphite Heat Exchangers (Squirrel-cage Graphite Heat Exchanger)
- Immersion Graphite Heat Exchangers (Squirrel-cage Graphite Heat Exchanger)
Immersion Graphite Heat Exchangers can be acted as a heating or cooling part in other chemical equipment such as reactor, vessel, tank etc, which need to heat or cool the corrosive media. Immersion Graphite Heat Exchangers are often used in metal cleaning, immersion, etching, electroplating industry.
- Spray Graphite Heat Exchangers
- Double-Pipe Graphite Heat Exchangers
- Spray Graphite Heat Exchangers
- Double-Pipe Graphite Heat Exchangers
Compact Graphite Heat Exchangers:
Compact type graphite heat exchangers is made out of single cubic block with characteristic of robust, compact, more thermally efficient than glass coil heat exchangers, which is often used in laboratory of fine chemicals and pharmaceuticals as graphite condensers, graphite evaporators, graphite reboiler on reactors.
- Heat Transfer Area: 0.3 ~ 5 Sq. M
- Design Pressure: < 0.5 MPa
- Design Temperature: < 200 oC
Introduction To Fareast Graphite Equipment:
Because of its excellent thermal stability, chemical resistance and easy machining, Graphite chemical equipments have been employed in the field of chlor-alkali, chemical, petrochemical, pharmaceutical, agrochemical, steel pickling and
environmental protection industry including heat exchanger, HCl synthesis unit, dilution plant, absorbers, evaporator, gas scrubber, quencher, column etc. The customer has gotten the following excellent feature and benefits :
- Excellent Corrosion Resistant
- Outstanding Heat Transfer Properties
- Non-Contaminating
- Reasonable Price compared to other material with similar quality
- Simple Joining
- Light weight
As an expert supplier of graphite chemical equipments, Nantong Fareast Graphite Chemical Equipment Co. LTD continually develop and provide quality-stable graphite equipment to solve the problem of considering the need of both corrosion resistant and thermal stabling facing in process engineers. Typical chemical process units include:-
As an expert supplier of graphite chemical equipments, Nantong Fareast Graphite Chemical Equipment Co. LTD continually develop and provide quality-stable graphite equipment to solve the problem of considering the need of both corrosion resistant and thermal stabling facing in process engineers. Typical chemical process units include:-
- - graphite heat exchangers
- - hydrochloric acid (HCl) synthesis unit
- - graphite sulfuric acid (H2SO4) dilution plant
- - graphite falling film absorbers
- - graphite quencher
- - graphite column
- - graphite lined vessel
- - graphite pump
- - graphite spare parts
- - graphite piping
which act as a normal unit servicing various industries. The staff of high-trained technical personnel is willing to provide practical, low cost solution for most process problems.
Moreover, our entire experience is put to good use in offering Know-How systems from individual equipment to complete systems, which are:-
- Graphite Hydrochloric Acid(HCl Acid) Synthesis Units
- Zirconium Oxychloride Outside Circulation Graphite Evaporator/System
- Exhaust Hydrogen Chloride(HCl) Gas Absorption Unit
- Production of hydrogen chloride(HCl) gas from hydrochloric acid absorption
- Dilute Sulfuric Acid Concentration / Nitric Acid Concentration System
- Hydrochloric Acid(HCl) Recovery From Steel Metal Pickling
- Zirconium Oxychloride Outside Circulation Graphite Evaporator/System
- Exhaust Hydrogen Chloride(HCl) Gas Absorption Unit
- Production of hydrogen chloride(HCl) gas from hydrochloric acid absorption
- Dilute Sulfuric Acid Concentration / Nitric Acid Concentration System
- Hydrochloric Acid(HCl) Recovery From Steel Metal Pickling
Quality Control:
We are delighted to announce that we successfully achieved registration to the BS EN ISO 9001:2000 standard, following an assessment by BM TRADA Certification in June 2007. BM TRADA Certification is a leading multi-sector certification body accredited by UKAS (United Kingdom Accreditation Service).
Ours commitment to quality is based on the belief that the effective and consistent implementation of operational systems, which reflect both customer and business requirements, will result in the continuous satisfaction of customer needs.
