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Store cherries in a controlled atmosphere

The article presents a way of offering containing state-of-the-art equipment, all bearing the CE mark, with a low impact on the environment and technologies for achieving a process with great savings of electricity: Dynamic Active Cooling .

– >delivery, assembly and PIF refrigeration equipment + controlled atmosphere for: refrigerated warehouses ( temperature control + humidity + realization of UYO conditions) + industrial air conditioning technological Hall and processing area. Supply of chilled water cooling system (Hydro Cooler)

1. The central refrigeration plant (multicompressor refrigeration plant + remote air-cooled condesnator) and will supply all refrigeration equipment – refrigeration refrigeration Circuit-industrial air conditioning.

Cold room No. 1 [functions : refrigerated storage in the range -1 / + 2°C ]

Cold room No. 2 [functions : refrigerated storage in the range -1 / + 2°C ]

Cold room No. 3 [functions : refrigerated storage in the range -1 / + 2°C ]

“Blow-thru” type evaporator installation (arrangement of fans behind the cooling battery to ensure minimum dehumidification during the storage process)

Indoor unit: blown vaporizer Termokey production (industrial range dedicated fruit warehouses).

– refrigerating capacity: 16.0 kW / + 1°C T Room .

– equipment: 4 fans x 400 mm [flow rate provided = 12800 mc / h; air current distance = 28 ml], electric defrost [in battery and tray], electronic thermostatic valve [including driver].

– realization: RAL 9002 painted steel housing + battery with + aluminum sheets, vibration-free operation.

– gauge dimensions / weight: 3470 x 711 x 609[Lxwxh] [mm] / 180.0 kg.

Electrical panel:

– made of PVC box in the range RAL 9002 IP 64 [location at the entrance to the refrigerating space].

– equipped with: electronic temperature – humidity controller [possibility of setting the 42 operating parameters]; temperature and humidity probes; displays in real time the temperature / humidity in the space as well as the mode of operation of [cold, humidification, defrosting, muller [and / or any faults that occur. Possibility of monitoring and recording parameters according to HACCP .

– electric date: fans [400V / 0.8 kW / 5.60 a] – defrosting [400V / 8.4 kW].

Centrifugal humidifier:

– the equipment is of the type of water spraying by centrifugal force .

– it can work with: drinking water or demineralized water [not for the purpose of this offer].

– operation: it is coordinated by an electronic circuit of care besides the cycles of operation-controlled by the humidity sensor – realizes automatic cycles of washing a water tank thus leading to the reduction of the possibility of bactericidal development at the level of the pool-tank .

– capacity: 6.5 kg / hour at + 1°C T Room .

– power supply / consumption: 220 V / 230W.

– accessories: humidity probe + electronic controller integrated in the electrical panel of the refrigerating room.

Mounting Kit : refrigerated route + electric [isolation valve in; dehydrator filter; liquid visor; solenoid valve; electronic thermostatic valve, isolation valve OUT ].

1.02:

Technological Hall installation: double-flow vaporizer [arrangement of fans in the middle of the battery with cooled air discharge on the sides parallel to the ceiling of the air-conditioned space]

Indoor unit: Rivacold production blown vaporizer.

– refrigerating capacity: 13.8 kW / + 12°C T Room.

– equipment: 5 fans x 350 mm [flow rate provided = 6550-8228 mc / h; air current distance = 10 ml], air defrosting, complete thermostatic valve.

– realization: aluminum housing + battery with + aluminum sheet, vibration-free operation .

– gauge dimensions / weight: 2716 x 756 x 256[Lxwxh] [mm] / 38.5 kg.

Electrical panel :

– made of PVC box in the range RAL 9002 IP 64 [location at the entrance to the refrigerating space].

– equipped with: electronic temperature controller [possibility of setting the 42 operating parameters]; temperature probes; displays in real time the temperature in space as well as the mode of operation of [cold, defrosting, muller and / or any faults that occur ]. Possibility of monitoring and recording parameters according to HACCP .

– electric date: fans [220v / 0.765 kW / 3.40 a] – defrosting [with air].

Mounting Kit: refrigerated route + electric [ziolare valve in; dehydrator filter; liquid visor; solenoid valve; thermostatic valve, constant pressure valve, isolation valve OUT].

1.03.

Processing area [functions: industrial air conditioning+10/+14°C].

Interior dimensions: 361.94 sqm x [5.3 – 7.0 ] mh.Volume = about 2220 mc.

Installation: cubik type vaporizer [with front discharge] provided with flexible tubing.

Indoor unit: Rivacold production blown vaporizer [required 2 pieces] .

– refrigerating capacity: 2 x 34.60 kW / + 12°C T Room.

– equipment: 2 fans x 500 mm [flow rate provided = 2 x 14402 mc / h; air current distance = 25 ml], air defrosting, complete thermostatic valve.

– realization: aluminum housing + battery with + aluminum sheet, vibration-free operation.

– gauge dimensions / weight: 2029 x 596 [740] x 830[896] [Lxwxh] [mm] / 2 x 136.8 kg.

Electrical panel:

– made of PVC box in the range RAL 9002 IP 64 [location at the entrance to the refrigerating space ].

– equipped with: electronic temperature – humidity controller [possibility to set the 42 operating parameters]; temperature and humidity probes; displays in real time the temperature / humidity in the space as well as the mode of operation of [cold, humidification , defrosting, muller [and / or any faults that occur. Possibility of monitoring and recording parameters according to HACCP .

– electric date: fans [400V / 2 x 0.98 kW / 2 x 1.68 a] – defrosting [with air].

Mounting Kit : refrigeration route + electric [isolation valve in ; dehydrator filter; liquid visor; solenoid valve; thermostatic valve, constant pressure valve, isolation valve out]

1.04

Hydrocooler [functions :cooling fruits using chilled water in the field +2/+4°C ].

Execution:

– water basin: placed in the lower part of an equipment having inlet-outlet made of pipe. Insulation is made using polyurethane panels [60 mm thick]. Together with the equipment that accompanies it is made of stainless steel AISI 304.

– cooling coil: placed in the cooling basin, made of CU for high heat exchange. A serpentine support systems are made of AISI 304 stainless steel with plastic collars.

– passage tunnel: made of polyurethane panels 60 mm thick [high density foam 42 kg / mc] with AISI 304 stainless steel finish on the inside and galvanized sheet painted in electrostatic field on the outside.

– water-air barriers: made at the entrance and exit of the tunnel from silicone PVC strips with a thickness of 2 mm. The support and mounting accessories of a PVC strip are made of AISI 304 stainless steel .

– support structure: it is made of rectangular profiles galvanized in thermal bath and painted in electrostatic field.

– conveyor belt: housing, chain mechanism shaft and chain conveyor chain made of stainless steel Aisi 304. The conveyor belt preparation mechanism is made of POLYASSETAL steel.

The conveyor belt is provided at the inlet and at the outlet with the role of stainless steel AISI 304 to facilitate the loading and unloading of shuttles with fruits to be processed.

– water circulation pump: standard series SNM / 1450 rpm / 400V / 50 Hz – 2 pieces. Water pumps with mechanical seal, provided with stainless steel shaft. Ensures the circulation of cooled water between the cooled water basin [placed at the bottom] and the water distribution system [placed at the top]. The inlet of the pumps is provided with a stainless steel filter for mechanical filtration of cooling water.

– intermediate filtration system: made of stainless steel Aisi 304, equipped with stainless steel filter-sieve to prevent leaf fall in cooling water [mounted between the conveyor belt and the water basin-clean manually after each step of use].

– cooled water distribution system: made of stainless steel pipe AISI 304 and provided with PVC distribution nozzles extradur [on request as optional pot Mount metal nozzles].

– refrigerating capacity: 95.50 kW / -6°C T vaporization / +45°C t condensation.

– dimensions of gauge / weight: 6000 x 1500 x 4000 [Lxwxh] [mm] / 3680.0 kg [provisional date].

[input-output navate size: 1500-1800 mm]

Sizing date:

– quantity Cherries subjected to cooling process: 1800-2200 kg / hour.

– initial / final product temperature: [+25°C…+2°C] or [+28°C….+ 4°C].

Electrical panel:

– made of cold-drawn metal box, RAL 9002 range painting [inside location].

– equipped with: electronic temperature controller [possibility to gain setting operating parameters]; water temperature probe [input-output–; displays in real time the status of the equipment and / or any faults that have occurred. Possibility of monitoring and recording parameters according to HACCP.

– size: 800 x 600 x 220 [Lxwxh] [mm] – provisional date.

– electric date: 400V / 2x 2.2 kW.

Mounting Kit : refrigerated route + electric [isolation valve in; filter dehydrator; liquid visor; solenoid valve; thermostatic valve, isolation valve OUT].

1.05

External refrigerating unit [ multicompressor refrigerating unit for external installation].

– cooling capacity: 156.60 kW / -6°C T vaporization / +45C t condensation / R404A.

Air-cooled condenser [6 x 800 mm] horizontal location.

– cooling capacity: 314.0 kW / DT 15 or 209.30 kW / DT 10 [function up to + 48°C ambient temp]

– gauge dimensions: 3960 x 2325 x 1426 [Lxwxh] [mm] / Weight = 891.30 kg.

– electrical data: 400V / 11.64 kW / 23.40 A.

1.07

C / material value + Assembly + PIF + delivery to the beneficiary [refrigerated routes-pipe with + kFlex insulation, internal electrical wiring refrigerated equipment, positioning internal units, R404A loading + refrigerated oil].

Beneficiary training + exploitation assistance [5 days x 8 hours].

2. Equipment production and maintenance controlled atmosphere [provided for the 3 refrigerated warehouses for storage under conditions of temperature, humidity and O2 reduction].

For dimensioning, the 3 cold stores with approximate volumes of 300 – 320 mc [about 80 tons Cherries / warehouse] were taken into account .

The capacity of the scrubber / CO2 absorber is determined by the nature of the stored product, the quantity of this product and the storage conditions.

SIZING CO2 ABSORBER

NITROGEN GENERATOR SIZING

2.01

Cold storage sealing.

The realization of the Controlled Atmosphere – ULTRA LOW oxygen-is the operation by which the concentration of O2 in the cold store is reduced and maintained at a low level. This operation is possible only if the construction of the cold store is correct and complies with the gas tightness condition. Moreover, a properly built and gas-sealed cold storage will require less energy consumed to achieve and maintain the required conditions.

During the construction of the cold store, maximum attention should be paid to the following:

– sealing in all corners [floor – wall; wall – wall; wall – ceiling] including connections and fasteners of the refrigeration and humidification system [fixing rods; passing pipes and electrical wiring, passing water pipes and condensate leaks].

– sealing in front of the access refrigerating door [joining Wall – door and door – floor].

– the sealing between the joints of polyurethane panels [mother-father or crenellated type] the sealing of these joints represents the definitive elimination of losses generated by the unevenness of the joints between the panels.

Achieving a good tightness of the cold store leads to significant gains during the operation of the equipment as follows:

– quickly ensure temperature / humidity and gas concentration conditions.

– savings terminated by judicious exploitation of equipment and implicitly increase the life of castor equipment.

– important savings achieved with the judicious use of electricity necessary to restore the unbalanced technological conditions through the losses suffered by non-tensioning of cold stores.

Technology:

Defoliation of polyurethane panels from which the cold store was made [operation in charge of the construction company].

Cleaning and degreasing joints between panels and between panels and floor.

Application of the primary primer [quick-drying base layer] with good adhesion to different surfaces. It also ensures – after drying-a good adhesion for the next layer.

Apply protective tape over the primary primer.

Application of the final primer.

Final verification of the application mode, application of the presented system to the various pipe / cable / etc. crossings.

Any necessary repairs before the PIF operations of refrigeration equipment / ATC / humidification / ULO.

Verification of works :

The airtightness test of refrigerated warehouses with controlled atmosphere can fit into the following levels:

-1.0 – 1.5% O2 concentration and 0.1-2.0% CO2 concentration-acceptable result, storage in ACT Grade 3

[ULO , very low O2 level ].

– 2.0 – 2.5% O2 concentration and 1.0-3.0% CO2 concentration-acceptable result, storage in ACT Grade 2

[O2 level low ].

– 3.0 – 4.0% O2 concentration and 3.0-5.0% CO2 concentration-acceptable result, storage in ACT Grade 1

[normal O2 level).

– >4.0% O2 concentration and > 52.0% CO2 concentration – unacceptable result, the samples are resumed after restoring the tightness of the deposits [restoring the tightness of panels, refrigerated doors, passages through walls-ceilings etc]

Materials used:

Primer-base coat with quick drying – 260 kg .

Primer layer type DL – 20 liters .

Primer coat type PA [A + B] – 4 liters.

Sealing tape joints [100 mm width ] – 1300 ml [estimated quantities].

2.02

Delivery + installation of refrigerated doors for warehouses with controlled atmosphere.

Sliding refrigerating door [manual operation / production without threshold].

Dedicated to warehouses with temperature and controlled atmosphere / 2200 x 2500 [wxh][mm] – passage gap / 100 mm thick heat – insulated top / frame countertop with anodized aluminum profile / top covered with RAL steel sheet / equipped with visiting window 580 x 810-outer frame 370 x 600 [wxh][mm] / equipped with air-pressurizable balloon type gasket to ensure a smooth operation perfect tightness / anodized aluminum slide system mounting with 100 mm Polyurethane Panel chopping system / manual operation / opening.

2.03

Protection and accessories cold stores provided with ATC and UI.

Due to the change in air pressure resulting from atmospheric changes and temperature differences, the air volume in the cold store is continuously under pressure and over pressure. A flexible air buffer-buffer tampón-is installed to compensate for these pressure differences. The excess air from the cold store is captured in this [over-pressure phase] and if necessary [under-pressure phase] is retransmitted to the warehouse. This process prevents the unwanted penetration of oxygen-rich air [in case of non-fatigue].

– buffer buffer 3 mc [recommended to install on warehouses with volume, 450 mc] – 3 pcs. Made of flexible PU. Dimensions: 2700 x 1150 [lxØ] [mm] – will be positioned above the cold stores. Provided with Manson Ø = 135 mm for coupling to PVC pipe Ø = 125 mm.

– flange [diameter = Ø 125mm]: provides a gas tight closure. The connection is made at 90 degrees for easy installation. An outer and an inner flange of the cold store is mounted.

– overpressure valve [diameter = Ø 160mm]: overpressure protection role. The increased diameter of 160mm allows the transit of a greater amount of air in a small unit of time which leads to increased protection even in the case of large and rapid pressure variations. It is set to 10mm column H2O.

The coupling flange of the overpressure valve [diameter = Ø 160mm] is of the sealed closure type with 90 degree connection. An outer and an inner flange of the cold store is mounted.

– flange for connection provided with threaded cap [diameter = Ø 50mm]: mainly used for tightness tests, additional temperature measurements gas sampling. An outer and an inner flange of the cold store is mounted.

– pressure indicator [provided with sample valve]: role in measuring overpressure or under pressure [mm column H2O] in the cold store during the storage process. It is also used to perform measurements during cold storage watertightness tests. The connection with the sample valves is also used for periodic sampling of control samples or samples relating to existing deposit conditions [gas concentration]. An outer and an inner flange of the cold store is mounted. Connection Ø = 12 mm

2.04

O2 Control in cold stores provided with ATC-UA.

The decrease in oxygen content inhibits the respiration of fruits. And yet, when the oxygen content is too low, the fruits will choke and the entire load of the cold store will be lost.

Therefore, oxygen supply [aeration] is necessary to maintain the optimum oxygen level in the cold store.

Aeration fan with sub-pressure valve.

The aeration fan introduces dosed oxygen-rich fresh air into the cold store using a switch, timer or external gas measuring device [ACS measuring station].

We offer a separate aeration fan combined with a sub-pressure valve for each cold store.

The advantages of aerating with an external fan are:

energy efficient aeration during cold storage loading when the oxygen content is too low or the CO2 content is too high.

– aeration of each cold store separately;

– maintaining the optimal capacity of the CO2 adsorber.

– the optimal [simple and precise] introduction of oxygen during storage.

– before opening the ATC storage the safe oxygen level is ensured by the aeration fan.

– so that the controlled environment can be accessed without any danger.

The aeration fan has an integrated sub-pressure valve with a diameter of 160 mm that allows the transport of a larger amount of air than in the case of using a sub-pressure valve with a diameter of 125 or 110 mm.

– connection Ø 160 mm / surface 200 cm2

– power 230 V, 75 watts

– capacity 370 m3 per hour at 100 Pa

– pressure gauge set to the pressure of 10 mm water column

Flange Ø 160 mm.

The flanges provide sealing and a 90 degree connection to the cold room. We recommend a flange outside and a flange inside the refrigerating chamber.

2.05

CO2 Control in cold stores provided with ATC-UA .

During breathing fruits and vegetables convert O2 into CO2. An important effect of increasing CO2 content is inhibition of breathing. And yet, if the CO2 level is too high, it can lead to damage to your valuable product and as a result it [CO2] will have to be replaced.

The CO2 Adsorber.

A CO2 adsorber removes excess CO2 without altering the low O2 content in the cold store. During adsorption the air with a low content of O2 is removed from the chamber by the adsorber and through this process the CO2 molecules bind with the activated carbon in the adsorber. The air purified of CO2 returns to the cold store. When activated charcoal is fully or partially saturated ,it will be regenerated [cleaned] with the help of fresh air. Prolonging the regeneration time will limit the transfer of ethylene between cold rooms to a minimum.

After regeneration the adsorber container is filled with fresh air, rich in oxygen that can be returned to the cold storage at the next adsorption process. However, the lung of the supplied adsorber replaces oxygen-rich air with low-oxygen air. The most important advantages of this equipment are:

– introduction of a minimum amount of oxygen during the entire process,

– the air in the cold room is not used to reduce the oxygen content by the adsorber. [this could cause an under-pressure and implicitly the entry of an amount of oxygen from the external environment].

The CO2 Adsorber works according to some” recipes ” through which various processes can be set. A separate recipe can be set for each cold store so that each product can be treated differently, in an optimal way.

An integrated timer can ensure that the adsorber ensures the Daily resumption of treatment a predetermined number of times. In addition, the adsorber can be controlled completely automatically by a gas measuring station of the ACS type.

The proposed system combines an existing pressure fan [frequency controlled] with the diameter of the correctly chosen PVC pipe. Reduce energy consumption to a minimum. This is a significant advantage becausethat the CO2 adsorber works most of the day.

For your application we recommend a CO2 model USC 255 :

– capacity 125 kg net CO2 in 24 hours

– power 0,5-1,1 kW [230 V / 1 ph / 50 Hz].

– average consumption 0,8 kW

– connection diameter of PVC pipes and double valves = 90 mm

– lung volume of the adsorber 4 mc; made of flexible PU.

– dimensions 1700 X 1325 X 1840 mm.

– equipment weight: 520 kg

Double valve CO2 Adsorber: the CO2 adsorber is connected to cold stores with a PVC pipe system. For a tight connection between each warehouse and adsorber a double valve is provided that opens and closes automatically during the process. The double valve is electronically controlled by the adsorber and is actuated by a pneumatic powered rotary actuator.The double valve is characterized by high level operating safety and long service life. Achievement:

– stamped aluminum housing.

– EBRO Rotary actuator, manufactured for intensive use in extreme conditions.

– butterfly valve specially designed for ATC application.

– EPDM rubber developed specifically for sealing butterfly valve.

The diameter of the double valve is adapted to the capacity of the CO2 adsorber. If the diameter is too small, air friction will introduce too much heat into the ATC cold store. On the other hand, a double valve too large would be unnecessarily expensive. Technical data:

– diameter 110 mm

– including 4 flanges for airtight mounting.

– pneumatic air supply with 8 bar.

-control unit on CO2 adsorber powered at 24 V.

Air compressor

The CO2 Adsorber is supplied with a robust piston compressor with cast iron cylinders that provides compressed air for both the double valves and the pneumatic valves of the CO2 adsorber.

– capacity of 204 l per minute at 10 bar.

– pressure switch with pressure gauge included.

– 100 l buffer tank.

– power 1.5 kW (400 V, 3 ph)

– dimensions 1000 x 420 x 800 (width * depth*height)

– weight 50 kg

Automatic leakage Control on the air compressor.

Automatic control of leakage from the buffer tank using a timer. Water resulting from condensation can be collected in a vessel or removed directly.

CO2 injection valve.

Some fresh products, such as berries, are stored at an “extreme” high content of CO2. When the fruit breath does not produce the required amount of carbon dioxide quickly enough, we can give nature a helping hand.Each cold store will be equipped with a CO2 injection valve for high control of the CO2 level in one or more stores at once. At the same time, after the injection, a slight overpressure can be created that can compensate for small losses. The injector valve can be connected to CO2 containers through a hose or pipe. Dosing can be done using a switch, timer or ACS gas measuring station. Technical data:

– magnetic valve 230 V

– 12mm hose connector

– connection to 7 diameter chamber”

– including 2 flanges for hermetic mounting

* CO2 containers are not included in the offer [will be insured by the beneficiary].

2.06

N2 Control in cold stores provided with ATC-UA.

The decrease in the content of O2 leads to inhibition of fruit respiration. When this happens naturally it can last more than 3 weeks in the normal process of fruit breathing. This period requires a large amount of energy from the fruit, which can lead to loss in quality and a reduction in shelf life. So we recommend that the reduction of O2 in the cold store be done in a controlled way using the injection of N2.

PSA N2 [nitrogen] generator.

PSA [oscillating pressure adsorber] produces pure nitrogen from atmospheric air. The PSA equipment contains two containers in which the high purity molecular carbon site is located, an air compressor, the compressed air tank and the necessary filters.

Pressure: molecular carbon sieves work more efficiently at high pressure than at low pressure. As a result PSA can produce nitrogen of higher purity than low pressure or vacuum systems.

Oscillating: while in the first container nitrogen is produced under pressure in the second one regeneration / cleaning takes place. After a certain time the processes in the two containers are reversed [automatic regeneration].

Adsorption: molecular carbon sieves adsorb oxygen molecules under pressure. When the pressure is released from the container the adsorbed oxygen molecules are released and sent out of the container.

The advantages of the PSA nitrogen generator system are:

– easy to use because the air in the room is not used in the production process.

– effective due to nitrogen production under high pressure conditions.

– effective because large amounts of pure nitrogen can be produced by using a VSA or VPSA membrane

– energy efficient by using a single compressor, without other moving components.

– reliable due to the simplicity in operation and the low risk of failure compared to other nitrogen generators; the PSA nitrogen generator is equipped as standard with filters and automatic condensate removal device so that no amount of oil, moisture or dust can enter the CMS.

For your application we recommend a PSA model up 1-12 nitrogen generator:

– production capacity of 12 Nm3 per hour with a purity of 1% residual oxygen.

– equipped with an integrated dehydrator .

– selector that switches between two pre-programmed levels of purity.

– compressor with rotary valve, with protection of the direction of rotation and air cooling.

– compressor power 4 kW [400/3/50 v / pH / Hz]

– PLC control power 25 Watt [230V].

– pressure switch for automatic switching on / off of PSA .

– oil / moisture filters, grade 1U and grade 0.01 u.

– PED authorized containers with certified protection .

– dimensions 1400 x 1200 x 1750 [Lxwxh] [mm].

– weight 620 kg

Temperature protection

This safety device ensures the automatic shutdown of the nitrogen generator when the ambient temperature drops below the freezing point.

The nitrogen buffer vessel.

The PSA equipment can be connected to a nitrogen buffer vessel. Pressure storage can be done for a limited amount of nitrogen so that nitrogen is immediately available on request. The PSA system pressure switch ensures its automatic shutdown when the pressure rises above a so-called specific level. In addition, the PSA system starts when the pressure drops below a specific level.

– nitrogen buffer vessel of 270 l authorized PED with certified protection.

– 3 m hose for the connection between the PSA and the nitrogen buffer vessel.

– pressure switch with pressure gauge included.

– sampling valve for periodic purity test measurements.

– dimensions / weight: 1600 x 500 [height*diameter] [mm] / 100 kg.

Nitrogen injection valve.

Each cold store must be equipped with an injection valve for the controlled lowering of O2 content in one or more stores at once. At the same time the injection may cause a slight overpressure in the warehouse which may compensate for small losses , if any. The injection valve can be connected to the nitrogen buffer vessel with a hose or pipe. Dosing is done by means of a switch, a timer and an external gas measuring station type ACS.

– magnetic valve 230 V

– 12mm hose connector

– connection to 7 ” diameter storage chamber [including 2 flanges for hermetic mounting].

2.07

Measurement and control technology.

The ATC control station will allow full automatic control of the atomosphere in cold stores. You just have to enter the desired target values and the system measures, checks, regulates and maintains the parameters of the chosen atmosphere. Each storage cold store has its own set of connections for measurement that is connected directly to the ACS. The gas samples are taken successively from each warehouse using a diaphragm pump. As a result, the CO2 adsorber and all other installed equipment can continue to work normally while the measurements are made. Then the ACS system compares the measured values with the target values after which the system will automatically take the appropriate action. The operation is done by ordering on a numeric touch-pad using a simple menu.

All components of the measurement and control system are mounted in a control cabinet. The order cabinet is made according to customer specifications. For your application we recommend a combine system: ACS is integrated into the control cabinet of the CO2 adsorber.

Measurements carried out on each cold store:

– O2 and CO2 in 3 warehouses.

– O2 and CO2 in the engine room [technical assembly space].

– O2 value in the lung of adsorption.

Alarms on each cold store:

– when deviating from the target value [relative or absolute].

– if the measurement is blocked [flow alarm].

– faulty sensor

– unstable measurement [signal fluctuation measured] .

Ordering the CO2 adsorber based on the target values on each cold store :

– adsorption of CO2 from the storage time [CO2 *].

A zirconia ceramic sensor will be used to measure the O2 concentration. Zirconium has a faster response and unlike other chemical cells, it does not diminish its function at the change of temperature and atmospheric pressure. Other properties are:

– measuring range 0 to 25%

– resolution 0.01%.

– accuracy 0.1% [calibrated to 5 factory points].

– lifetime more than 5 years

The CO2 sensor is of the dual infrared beam type.The sensor uses this technology to self-check and deviations in the sensor are automatically corrected. This sensor does not diminish its function at the change of temperature and atmospheric pressure.Other properties are :

– measuring range 0 to 10%.

– resolution 0.01%

– accuracy 0.1% (calibrated to 5 factory points).

– lifetime more than 5 years.

Control of the 3 aeration fans.

For ease of control, an output switch / relay is installed on each aeration fan in the ACS control cabinet. This Switch has three positions: off / continuous / automatic.

In the automatic position the aeration fan is activated based on the TPA [time Per Action] parameter control. Unique to TPA control is that the difference between the measured value and the target value is automatically converted to a longer or shorter aeration period. As a result, large deviations from the target value are avoided and therefore stress-free storage conditions are obtained for sensitive but valuable products .

– TPA control is carried out independently on each cold store as follows:

– aeration with oxygen during the storage period [O2 *].

– maintaining the level of O2 and CO2 during the introduction of products into the cold room [O2 * / CO2*].

– rapid increase of O2 in a short time before the opening of the refrigerating chamber [O2 *].

Control of the 3 CO2 injection valves.

For ease of control, an output switch / relay is installed on each CO2 injection valve in the ACS control cabinet. This Switch has three positions: off / continuous / automatic

In the automatic position the connected CO2 injection Valve is activated based on the control of the TPA Prameter [time Per Action].

TPA control is carried out independently on each refrigerating chamber as follows:

– lowering using carbon dioxide [O2 *].

– maintaining the CO2 level during the storage period [CO2 *].

Control of the 3 nitrogen injection valves

For ease of control, an output switch / relay is installed on each CO2 injection valve in the ACS control cabinet. This Switch has three positions: off / continuous / automatic.

TPA control is carried out independently on each cold store as follows :

– decrease using nitrogen [O2 *].

– maintaining the O2 level during the storage period (O2 *) measuring the purity of nitrogen in the buffer tank.

A pressure switch with a pressure gauge is installed in the ACS system to check and optimize the N2 supply settings. This module gives information about the purity of N2 product.

2.07

Operating system and registration

All interconnected equipment can be easily controlled with the software developed specifically for this purpose.

Batnetwin ™ software [including license].

BatNetWin ™ software allows you to see at a glance, at each cold store, the measured values and what actions are carried out. BatNetWin ™ is based on a database so that you can find measurements that have been made in the past. These data can be compared with others for each cold store in graphic and tabular format. In addition, this data can be exported to another program [ex. Excel].

The most important features of BatNetWin ™ software are:

– overview of measured values on the main screen .

– several subdivisions of significant parameters and measured values in each cold store.

– real-time control and operation of all remotely connected equipment.

– memorization and printing of all data as measured values, operating hours, injection times, alarms, etc.

– operation at different levels of authorization.

– different views freely adjustable in graphic and tabular format.

In addition, there are many other features of BatNetWin ™ software that allow easy optimization of the composition of gases in cold rooms. If the software is installed on a PC with internet access, the provider can examine the entire system and provide you with any guidance requested.

The advantages of BatNetWin ™ software are in brief:

– all the important data at a glance.

– user friendly operation.

– remote control and operation via the internet.

– immediate display of various alarms on the screen.

– hotkeys for the most used functions.

Communication mode

The communication module is required to create a network between AC / UA and PC equipment with BatNetWin ™ software. This module has integrated an industrial Ethernet switch with RJ45 ports for connecting with CAT5 or CAT6 cable. It is also possible to connect the AC / UA equipment to an existing network for the control of machines located virtually anywhere.

PC and printer

This PC has at least one free RS 232 / USB port for connecting the ADAM communication module to the official Microsoft 7 operating software. Other specifications are: keyboard, optical mouse, 17 inch TFT monitor, network card, DVD player, internal modem and an HP color Inkjet Printer. We can provide support anytime as long as this PC is permanently connected to the internet via network or modem. In addition, you can access your pc with BatNetWin software from any other PC that is connected to the internet and operates a needle equipment.

Portable O2 and CO2 analyzer.

A particularly safe portable analyzer with a zirconia ceramic O2 sensor and double infrared CO2 sensor [display, integrated battery and charger] will be provided for periodic checking of O2 and CO2 values. The sensors in the portable analyzer have the same specifics as those in the ACS system .

Other properties are: measuring range 0 to 25% / resolution 0.01% / accuracy 0.1% [calibrated at 2 factory points] / lifetime more than 5 years .

The CO2 sensor is of the dual infrared beam type.

The sensor uses this technology to self-check and deviations in the sensor are automatically corrected. This sensor does not diminish its function at the change of temperature and atmospheric pressure. Other properties are :

– measuring range 0 to 30%

– resolution 0.01%

– accuracy 0.1% [calibrated to 2 factory points].

– lifetime more than 5 years.

Calibration vial N2.

The accuracy of the ACS system sensors and the portable analyzer must be checked regularly using the certified calibration gas.

– the composition of the calibration gas is 0% O2 and 0% CO2.

– contents 10 l .

– other compositions are valid on request

Gas calibration vial 1 – 20

The accuracy of the ACS system sensors and the portable analyzer must be checked regularly using the certified calibration gas.

– the composition of the calibration gas is 10% O2 and 20% CO2.

– content 10 l

– other compositions are valid on request

Pressure switch for gas ampoule calibration

The pressure switch ensures proper use of the gas calibration ampoule and will be delivered with :

– main valve .

– flow meter .

– pressure switch .

– pressure gauge .

PG7 hermetic connector.

PG7 ensures that the measuring hose on the atmosphere control station can have a hermetic connection to the cold store. The connection to deppzit has two flanges for sealing and an IPON cable.

– standard length = 250 mm.

– 0 12 mm connector warehouse.

– internal 0 7 mm.

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