Technical Specifications provided by the manufacturer as a guide to describe the equipment, please verify process application.
Parts Cleaning Technologies Model ADS-300-EW Solvent Still rated @ 300 gph nominal distillation, Electric Heated / Water Cooled. This unit will be constructed per the attached specifications. The unit is designed for low emission solvent distillation application with AK-225G solvent. Unit to be factory set per customer specifications and wired for 460 volts, 3 phase, 60 hertz, NEMA 12X Panel with 120 volts controls.
Special Note: The following features are included in the base price of this distillation unit:
a) Tank: 10 gauge Type 304 stainless steel with sloped modified “vee” bottom for ease of maintenance. Tank freeboard has been increased to 125% Freeboard (45”), total freeboard distance from center of cooling coils to tank lip.
b) External Type 304 stainless steel solvent piping / valves. All piping to be welded / flanged where possible.
c) Single point manifold water piping (inlet/outlet). Customer to supply cooling water at required flow, pressure and temperature.
d) 360º finned stainless steel internal Primary and Below Freezing (-20) cooling coils with stainless steel condensate troughs and coil supports.
e) External stainless steel water separator with removable gasketed lid and internal finned stainless steel cooling coil.
f) Heating: Equipped with incoloy screw plug type electric heaters.
g) Automatic liquid level make-up device for use with stainless steel transfer pump.
h) Selector switch for use with transfer pump.
i) Overall dimensions: 73” long by 57” wide by 104” H (not including any base).
Note 125% freeboard
j) NEMA 12X type electric control panel.
k) Cleanout door located at one end of still
l) Minimum 1” thick tank wall heat insulation covered with aluminum paneling for thermal qualities, corrosion resistance, and first class appearance
m) Top mounted access door for ease of maintenance. Note: This removable door will be gasketed / sealed and provided with quick opening latches. The still and storage tank will be vented through a stainless steel “conservent” chamber which will contain desiccant material to reduce ambient moisture from entering the still or tank but allow pressure relief/vent for the system. The desiccant is a commercially available material and will require periodic replacement.
Liquid high temperature thermostat control
Low liquid level control
High liquid level sensor
High vapor level thermostat control
Water flow switch
Condenser Water Upper Limit Thermostat
Operation Note: All PCT Atmosphere Distillation Systems are designed for use with specific solvents. They are not designed for use with any flammable or combustible materials. Failure to obey these guidelines and failure to provide periodic maintenance may result in damage to the equipment or harm to personnel in the event of equipment misuse. To verify specific solvent application, please contact PCT.
Electrical Control System
The system will include an electrical panel mounted on the storage tank to house the control system to regulate and monitor the process equipment operations. The system is controlled with electrical components mounted in a NEMA 12X enclosure complete with mounted disconnect device for lock-out/tag-out. Each operational device such as pumps, heaters, auto-cycles, etc., will be controlled thru a push button station or selector switch mounted in the electrical panel door connected to an Allen Bradley Processor mounted in the electrical panel. Standard control voltage is 120 V.A.C. with all wiring (internal of panel and external to devices) installed per N.E.C / NFPA. PCT uses quality/reliable standard brand components available nationwide. Applied voltage: 460-3-60.
Processor: Allen Bradley. This unit allows future expansion if desired. In the event desired future expansion exceeds the supplied number of I/O, it may be necessary to upgrade the system or purchase another model with additional capacity/features. PCT can provide a proposal for any upsizing desired based on customer’s detailed request.
Disconnect: fusible type or circuit breaker installed in panel for lock-out / tag-out
Contactors and motor starters: AB or AD with circuit breakers and/or fuses
Alarm Indicators: Visual light beacon mounted on top of main control electrical panel and audible alarm in panel door.
Program Software: Standard – loaded into processor. PCT furnishes one initial operational program and one copy of this program on disc with one print copy of logic. Customer is responsible for any program software and programming terminal/lap top for future use.
Dual compartment /split STORAGE TANK capable of total working capacity of 3000 gallons. 1500 gallons Clean side / 1500 gallons Dirty side.
· Tank will be constructed of 10 ga Type 304 stainless steel.
· Unit will be equipped with structural base.
· Each tank is to be equipped with a sloped bottom with drain valve and 2 -22½ x 22½ access doors. One on top, and one on the side or end for ease of maintenance access. Note: each door flange will extend 3” from tank wall. Each flange will be provided with special bolt assembly for ease of maintenance.
· Each chamber to have a gauge glass / level indicator and spare couplings for piping connections. Gauge glasses will be John C. Ernst model 416 with Teflon seals.
· Tank designed for still to be mounted on top.
· Each chamber will be provided with a 3” fill pipe complete with ANSI 150# flange and blocking plate.
· Each chamber to have low and high level float switches to monitor status of the respective tank. Float switches will be A15-4E2B-BKQ model.
· Tank to have a control panel with warning lights and audible monitor signaling status.
· Fittings/couplings for venting of back to the still body condenser area.
· Unit to be shipped preassembled / pre-wired. ( Still will have to be removed from the tank for shipping and remounted on the tank by customer and interconnect wiring re-terminated. Lift rings provided on still and tank.
· Tank overall dimensions are approx.: 20’ 6” long x 4’ high x 7’6” wide
· Each chamber will be provided with a 3” drain valve complete with ANSI 150# flange.
NOTE: Control Panel- Controls for the still and the tank monitor controls etc will be located in one common electrical panel mounted on the “front” side of the storage tank.
The tank and still system as proposed can operate as a batch system or it will operate continuously as long as there is a continuous supply of “dirty” solvent to be processed. Either the dirty solvent tank low level sensor or the clean solvent tank high sensor can shut down the still. When either tank reaches a high or low level an alarm light will be activated. System must be physically restarted after the low or high level condition has been physically corrected.
Closed Loop Chilled Water System:
Process Cycle: When water is used as the cooling medium in any system such as degreasers, distillation units (stills), carbon absorbers, etc, it absorbs the heat from the process side and can only be reused if the absorbed heat is dissipated.
The chilled water system accomplishes the heat removal by exposing this heated water to a much lower temperature inside a refrigeration cooled heat exchanger (chiller barrel). The chilled water system provides the “location” for this transfer of heat from the recirculating water to the refrigerant liquid being pumped by the systems’ compressor through the chiller barrel. The recirculating refrigerant absorbs the heat from the water and then gives up this heat through the air cooled condensers of the chiller compressor system into the ambient atmosphere.
The capacity of a chilled water system operating within its gallons per minute range is dependent on two external factors. These are inlet water temperature and the efficiency of the refrigeration system removing the heat. The larger the difference between entering water temperature and capacity of the refrigeration system, the higher the exiting temperature of the chilled water returning to the process equipment will be.
The amount of water to be chilled is based on a 10 degree temperature decrease between entering and exiting water, thus the requirement for an increased flow rate. A typical chilled water system’s capacity size for heat removal is twice as much as conventional cooling tower systems. The recirculation flow rate for the process water is also generally twice as much.
Typical systems consist of an internal or external mounted air cooled compressor unit, generally located in close proximity to the indoor receiver tank. The chilled water is transferred through the process equipment by the recirculation pump, it absorbs the heat, and then is discharged into the receiver tank where the heated water mixes with the chilled water, and then is pumped through the chiller barrel by a second pump (on a dual pump system), releasing its heat, and returning to the receiver tank. The effect of the heated water being exposed to a much lower temperature of the refrigerant inside the heat exchanger causes the recirculating water temperature to drop. The mixing action of the two water streams in the reservoir tank also tends to lower the total water temperature.
During long term operation, a certain amount of the water will be evaporated or possibly seep out, and will need to be made up from an outside source.
The indoor reservoir tank is insulated and equipped with recirculation pump(s). On a dual pump system, the first pump recirculates the water from the reservoir to the chiller and back into the reservoir. The second pump transfers the water from the reservoir, through the process equipment, and back into the reservoir. The use of dual pumps, each dedicated for a specific duty, increases the efficiency of the operation as well as allows for more finite control of the process parameters.
PCT strongly recommends all recirculating water lines be insulated to maintain maximum efficiency as well as reduce ambient condensation.
This method allows for reuse of the cooling water and reduces the amount of water used through normal single pass through applications. The cost of the equipment is recovered through water conservation. The ROI will be based on the amount of water currently being used and the current price per gallon.
Each application is process specific and should be addressed by a knowledgeable party when selecting the correct method to suit the requirements. PCT is pleased to offer free technical consultation in regards to sizing a chilled water system to match your process equipment and provide an estimated ROI for the selected system based on the current local water cost.
Base System (Dual Pump Design)
One Air cooled refrigeration system having a capacity of 20 nominal tons. The chiller would be manufactured with the refrigeration circuit / compressor(s) mounted in a frame assembly. The system is rated for maximum 95 degree ambient temperature operation with vertical discharge multiple fans. Size of the condenser assembly is: 120” L x 34” W x 46” H. Unit comes pre-charged with new environmentally compliant refrigerant and pre-wired for 460-3-60 application.
One 150 gallon capacity insulated metal water reservoir tank. The tank and pump assembly would measure 6’ L x 4’ W x 5’ H and weigh 700 lbs. empty. Tank would be equipped with sight glass, drain valve, and required pump connections. Tank supported by painted mild steel frame.
One Process pump close-coupled bronze centrifugal pump designed to deliver full flow of water at low NPSH. The pump is equipped with a mechanical shaft seal and a 3450 rpm, 460-3-60 motor.
One Chiller pump close-coupled bronze centrifugal pump designed to deliver full flow of water at low NPSH. The pump is equipped with a mechanical shaft seal and a 3450 rpm, 460-3-60 motor.
Standard Electrical System
The Chilled Water System is controlled with electrical components mounted in a NEMA 1 enclosure. Each operational device such as compressors, pumps, etc., will have a push button station or selector switch mounted in the electrical panel door. Standard control voltage is 120 V.A.C. Applied voltage will be 460-3-60.
Customer/installer will be responsible for the installation of any thermostats, flow switches, or other devices in the flow circuit piping or vessels, any electrical interconnections required between the remote devices and the panel, and any power supply required.
This item is being sold “As is, where is”. No returns or exchanges. The buyer is responsible for verifying the condition and operational functions. Sale must be completed within 7 days of purchase otherwise sale is considered delinquent. If your item will remain in our warehouse for 30 days passed invoice date, a $1/ sq foot/ month warehousing fee will be applied.
Complete company information: address, contact person, phone number, fax number, destination address if different then company address already provided.
Trucking, palletizing or loading / securing into overseas container
Packaging, skidding, crating and loading could be an additional charge depending on the nature of the item and what is required for shipping. Please contact us and let us know what services you need quoted.