The stainless steel tanks or vessels we use are in fact part of our process tanks in production. For process vessels, the inappropriate choice of tank dimensions results in not only economic losses but also more likely to affect the quality of the product, leading to the unexpected quality of the final product. Therefore, the size of the device first need to be met the production process requirements. Taking the beer fermentation tanks for instance the optimum ratio of height and diameter is 2:1, the most constant quality of the wort can be achieved after fermenting under the condition of this dimension ratio. The affecting factors of the manufacturing technique to the equipment dimensions shall be specifically introduced in the next presentation. This article mainly focuses on other factors in addition to the manufacturing technique.
Other factors: restrictions of vehicle size, restrictions of container size and flat rack size, door size restrictions of the workshop in which the equipment will be installed, height restrictions of the workshop and catwalks height requirements.
Constrains of vehicle size
The common vehicles are capable for those tanks with sectional dimension less than 3500mm and with length less than 12,000mm, those tanks with sectional dimension larger than 3500mm and with length larger than 12,000mm which are the so-called oversize equipment will be transported by special vehicles which costs more than common vehicles. Therefore in order to save cost and to meet up the manufacturing technique we’d better avoid the oversize designing of equipment.
Restrictions of container size and flat rack size
Limit sectional dimension for placed equipment in 20GP/40GP is 2250mm
Limit sectional dimension for placed equipment in 40GP is 2250mm in width and 2600mm in height.
The above dimensions are in consideration of container doors and the safe margin for equipment transportation to avoid the inevitable impact.
The limit feasible dimension for flat racks is consistent with the common vehicles.
The cost of choosing containers of 20GP/40GP/40HQ is far lower than using flat racks in terms of transportation fee.
Door size restrictions of the workshop in which the equipment will be installed
Most buyers ignore this factors however this will cause big trouble if it comes true.
One business case of one of our winemakers has ordered an open-top fermenter with diameter of 1800mm and max section 2000mmm. In confirmation of door sizes of his workshop he was on business trip and asked his wife to measure, later in goods receiving came the mismatching of the door and our equipment. We have provided the right tank in dimension of 2000mmm but the door was 1980 there was 20mm deviation at the floor knob and he finally had to breach the window and its wall to carry the fermentation tank inside.
Generally the height of door is larger than 2000mm but the width is uncertain therefore the width of door is likely the restriction of equipment transporting.
Height restrictions of the workshop
For high vertical cylinder equipment, workshop height needs to be taken into account. After carrying the device into the workshop through door it shall be placed in vertical condition. Be aware there is a following relationship between equipment height and workshop height shown in Figure.
We have a buyer asking us to design the tanks as long as possible in order to place more tanks in his workshop subsequently found those tanks couldn’t be placed vertical. We finally achieved our buyer’s requirement in installation. Here shows the equipment drawing and you are welcome to communicate with us to see how we manage it if you are interested.
Catwalks height requirements
The requirement of designing catwalks is necessary in tank farm, using catwalks to connect all tanks is more economical and workable than to design ladders for each tank. Tanks with different capacities shall be designed in the same height at tops as possible as we can in order to use the catwalks, particularly in case of placing new tanks in tank farm we should try to design the new tanks in the same height as the existing tanks.
By now you will feel it complicated and there are too many factors you have to consider. Don’t worry we have prepared a list of the factors in tank dimensions and it is for free to download or you are welcome to contact us about how to design tank dimensions.
To be continued