Applied Scientific Instruments Co., Ltd.

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เครื่องมือจำลองการฆ่าเชื้อในผลิตภัณฑ์อาหารด้วยอุณหภูมิสูง HTST(High Temperature/Short time) /UHT (Ultra-High Temperature) Pasteurization System

หมวดหมู่สินค้า: INDUSTRIAL FOOD TECHNOLOGY
รหัส : FT74XA
The FT74XA is a highly flexible, miniature-scale HTST/UHT processing system which makes it ideal for new liquid product development. It has a wide range of options to suit all needs and can be operated independently or as part of a continuous operation process with other Armfield equipment.

28 มีนาคม 2566

ผู้ชม 1962 ผู้ชม

SUMMARY.

FT74XA HTST/UHT service unit.

       The FT74XA is compact, mobile and easy to install. It has an integral pressurized hot water generator and requires only electricity and cooling water to operate making it ideal for confined spaces with limited services available in some laboratories.

      Operation with either plate or tubular heat exchangers means a wide range of product viscosities can be handled. A progressive cavity feed pump ensures that flow rates are independent of viscosity/backpressure changes and allow a maximum operating pressure of 10 bar. Typical processing flow rates are 10-20 L/h with holding temperatures up to 150°C. At pasteurization temperatures flow rates of up to 60 L/h are achievable.

      Cleaning is in place (CIP) utilizes the feed pump in high flow rate mode and there is a centrifugal pump CIP option (FT74XA-52) which generates very high cleaning velocities to deal with products that
are particularly difficult to clean.


      Sterilization (SIP) of the system is controlled from the touchscreen. System sterilization time and temperature are defined and key temperature sensors are monitored to ensure the entire system satisfactorily completes the SIP cycle.

      Automatic pre-heat control (FT74XA-46) offers an independent hot water circuit and the product pre-heat temperature is set via the touchscreen. The system is well instrumented for both process and services with all sensors displayed on the touchscreen and recorded values can be seen graphically and saved to USB datastick for further analysis. 

      1. The FT74XA service unit provides the heating and cooling services, controls and instrumentation to run the Armfield miniature-scale heat exchangers as described below. The heat exchangers fit on top of the service unit and can be interchanged easily in just a few minutes.

      2. The service unit comprises a feed tank, a product pump, instrumentation for the heat exchangers and an electrically powered hot water boiler (4kw standard with 6 kW with FT74XA-46 controllable pre-heat option) with a recirculation pump. It is controlled by an integral programmable logic controller (PLC) with a 15” high resolution (1366×768) full colour touchscreen panel interface for the operator.

      3. Control is via a 15” touch screen (resolution: 1366×768).

      4. Operating modes include Processing, CIP and SIP. There is also a Maintenance mode for service and set-up.

      5. All sensor values and set points are shown and input on the screen. Sensor values can be recorded to a datafile to be downloaded by USB stick and then imported in Ms Excel. Sensor values can be observed in a graphical format on the touchscreen. The variables displayed and timescales of interest can be adjusted by the operator.

      6. Operating parameters for a particular product can be saved as a recipe to be called up for easy equipment set-up.

      7. The holding time is calculated from the measured flow rate and displayed on the touchscreen. As is the Fo value calculated from the holding time and temperature.

 

Options to enhance the functionality of the FT74XA base unit include:

     1. Suction feed (FT74XA-41/53) – These two options allow the unit to be connected to a feed tank instead of using the hopper (-41). An automated valve can also be used to add water when product runs out (-53).

     2. Electromagnetic product flow meter (FT74XA-40) with readings datalogged

     3. Pneumatic pinch valve (FT74XA-42) – this replaces the standard sprung backpressure valve when processing with particulate-containing products (requires a compressed air supply).

     4. Sterilization link (FT74XA-45) – this enables the FT74XA to provide sufficient heat to sterilise the Armfield FT83 sterile filler.

      5. Variable holding tube (FT74XA-65) – This comprises three separate holding tubes mounted inside an insulated stainless steel housing. The coils, used independently or in conjunction, provide seven different holding times between 30s and 120s at 10 L/h. Intermediate holding times are possible by varying the product flow rate. It can be used with both the tubular and plate heat exchanger. It is supplied with a temperature sensor so that the temperatures in and out of the holding tube are monitored and recorded. Other holding tubes are available on request.

 

FEATURES / BENEFITS

      1. Touchscreen control of all operations (15 inch, 1366x768).

      2. Tubular and or plate heat exchanger options.

      3. Low product hold-up means that tests can be made with a few litres of product.

      4. Variable holding tube option (FT74XA-65).

      5. Platinum resistance (PT100) temperature sensors for high accuracy.

      6. Fully instrumented: product pressure and flowrate (electromagnetic flow meter – FT74XA-40) and temperatures throughout the process and hot water/cold water service temperatures.

      7. Seamless homogenization integration (FT74XA-91) upstream or downstream with automatic speed control through the FT74XA touchscreen.

      8. Independent operation or within a continuous process in both aseptic and non-aseptic modes.

      9. Automated SIP capability (FT74XA-45) for system sterilization prior to aseptic operation.

      10. On-screen calculation of holding times from flow meter reading and display of Fo value based on holding time and temperature.

      11. Controlled cooling (FT74XA-51) – product outlet temperature from the secondary cooling stage is automatically controlled to the value chosen by the operator.

      12. Recipes saved in the system for instant set-up of operating parameters for particular products.

      13. Two-stage cooling capability for plate and tubular heat exchangers (eg towns water then glycol – Armfield FT63) – optional.

      14. Rapid switch-over between heat exchanger types.

      15. Backpressure control using a sprung diaphragm valve or pinch valve (FT74XA-42) for products containing solids.

      16. Suction feed capability (FT74XA-41 or FT74XA-53) to operate in conjunction with an external feed tank. Independent pre-heat hot water loop and product temperature control (FT74XA-46).

      17. Inclined tubular arrangement for FT74XA-20 for self-draining

 

APPLICATION

  • Baby foods
  • Beer
  • Beverages
  • Condiments
  • Confectionery
  • Milk
  • Cream
  • Ice-cream
  • Yogurt
  • Desserts and puddings
  • Fruit and vegetable purées
  • Fruit juices and cordials
  • Sauces and soups
  • Gravies
  • Gelatine products
  • Pet food
  • Health and nutritional products
  • Culture media
  • Protein drinks
  • Pharmaceuticals

 

TECHNICAL SPECIFICATIONS.


FT74XA Heat Exchanger Service Unit
Feed pump:                   Progressing cavity variable-speed pump, with standard and high flow modes.
Particulate handling:   0.8mm.
Fibre handling:            25mm.
Standard flow:             10-30 l/hr.
High flow:                     Up to 120 l/hr.


Pressurized water circulator
Water capacity:               4.0 liters
Pump circulation rate:   Variable up to 6 l/m
Water temperature:       165˚C maximum
Safety cutouts:                Low level
                                         High pressure
                                         The mechanical pressure relief valve
Heating duty:                 4 or 6 kW

Miniature plate heat exchanger FT74XA-30.

      The standard FT74XA-30 has a regeneration section that uses heat from hot products to heat incoming products. There is also a main heat and cooling stage. A number of options can be added:

      1. FT74XA-31/32 Homogeniser plate upstream (-31) of main heat and downstream (-32) of the main heat.

      2. FT74XA-33 Dual stage cooling gives an extra cooling stage (can be serviced by Armfield FT63 recirculating glycol chiller) to enable very low (< 5°C) product outlet temperatures.

      3. FT74XA-34 provides extra plates in the pre-heat and main heat sections which can be beneficial when operating at higher product flow rates for pasteurisations.

      4. When FT74XA is fitted with controllable pre-heat (-46) then the plate heat exchanger does not have regeneration and instead initial heating of the product is by the pre-heat hot water loop and the desired product pre-heat temperature is set using thetouchscreen

Plate Heat Exchangers.

Plate overall dimensions: 75 x 115mm
Effective diameter:           3.0mm
Plate thickness:                 0.5mm
Wetted perimeter:            153.0mm

Materials.

Plates:                                316 stainless steel
Gaskets:                             Food-grade silicone
Working pressure:            10 bar (max)
Standard holding tubes:   2s and 15s

 

Tubular heat exchangers FT74XA-20.

      1. Consists of a series of industrial standard 316 stainless steel concentric tubes split into product pre-heat, main heat and cooling stages. With the standard tubular heat exchanger (5 tubes) the product pre-heat temperature is controlled manually using a needle valve to control hot water flow.

      2. Product flows down the middle of the inner tube and the heating or cooling medium flows counter-currently through the annulus.
      3. The surface area for cooling can be doubled (2 extra tubes) by specifying the -24 option.

      4. A double area heat exchanger (FT74XA-20-DUAL, 10 tubes) is available (Requires FT74XA-46 option)

Tube Diameter

Product side:                       8.1mm
Overall diameter:               15.8mm
Length (heated):                 800mm
Material:                             316 stainless steel
Assembled test pressure:  15 bar
Working pressure:            10 bar (maximum)
Standard holding tubes:   2s and 15s

Associated equipment (see separate data sheets).
      A wide range of equipment is available for use in conjunction with the FT74XA system to enhance the overall processing capability.
     1. FT90/91 Homogenisation Subsystems.
     2. FT83 Sterile Filling System.
     3. FT63 Process Chiller.
     4. FT140 Mixing Vessels.
     5. Integrated systems
     In addition to our standard offering, Armfield offer a service to design and build complete bespoke integrated processing lines optimized to your specific requirements

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