During early freeze‑drying project planning, many purchasers focus all attention on freeze‑dryer throughput, price and process parameters, but overlook plant‑site supporting‑conditions. After equipment manufacturing and delivery, they find plant conditions do not match and have to rebuild civil‑construction or power‑circuits, delaying commissioning schedule and generating extra‑cost. Plant‑site basic conditions shall be checked item‑by‑item at solution‑design phase.
First, workshop‑space conditions: not only check length & width for equipment placement, but verify door width & height for equipment access. Confirm ceiling height because some units have upper refrigeration pipelines requiring maintenance clearance. Keep sufficient maintenance‑operation clearance around unit; do not place equipment tightly against walls.
Second, power‑supply conditions: verify actual available total power‑capacity, local voltage standard and possible voltage fluctuation. Confirm cable routing distance from power‑distribution point to equipment location and evaluate whether additional transformer is needed. Note that freeze‑dryer generates inrush‑current at startup. Transformer capacity shall reserve redundancy instead of exactly matching equipment rated‑power.
Third, water supply & drainage: confirm cooling‑water flow‑rate and inlet‑water temperature; check drain‑point status. Defrosting and equipment‑cleaning produce waste‑water so drain‑pipeline shall be unobstructed. If cooling‑water tower is unavailable on‑site, air‑cooled model selection shall be confirmed in advance.
Fourth, ambient‑conditions: maximum annual workshop temperature; whether site belongs to hot‑climate, dusty or coastal salt‑spray environment; workshop ventilation status, since refrigeration units require good air circulation for heat dissipation.
Fifth, auxiliary supporting zones: layout for raw‑material pretreatment area, finished‑product temporary‑storage zone, warehouse and spare‑part storage space.
Complete collection of above‑mentioned information enables accurate solution output. If existing plant‑site has shortcomings, give renovation suggestions at early‑project phase instead of exposing problems after equipment shipment. Plant infrastructure is equally important as freeze‑dryer hardware. Only well‑matched two‑part conditions guarantee smooth project commissioning.
