Variable capacity tank

Types of variable capacity tanks

A variable capacity tank, also known as a floating lid tank, is a type of tank that features an adjustable lid designed to minimize headspace. Variable capacity wine tanks are commonly used in the wine-making process to allow for changes in volume while maintaining limited contact between the wine and oxygen. Here are some types of variable capacity tanks:

• Stainless steel variable capacity tank

Stainless steel variable capacity tanks are the most popular and versatile type. They are designed to provide the flexibility to accommodate varying wine volumes while still offering the benefits of controlled oxygen permeation and corrosion resistance. The stainless steel construction also makes these tanks easy to clean and sanitize.

• Oval variable capacity tank

Oval variable capacity tanks are a common type that closely resembles traditional oak wine barrels. The oval shape of these tanks allows for some variability in tank volume, depending on the position of the floating lid. They can provide the wine with a similar aging and flavor profile to oak without the risk of oxidation or leakage that oak barrels may experience. As a result, they are often used in the fermentation and aging of premium wines.

• Rectangular variable capacity tank

Rectangular variable capacity tanks are another popular type. They are designed to mimic the shape of traditional oak barrels. Rectangular variable capacity tanks offer winemakers the flexibility to adjust the tank's volume based on the wine's production needs. They are often used for fermentation, maturation, and storage of wine. The rectangular shape of these tanks also allows for efficient space utilization in wineries.

• Plastic variable capacity tank

Plastic variable capacity tanks are tanks with adjustable lids made of food-grade plastic materials. They are designed to provide a more economical option for winemakers who prefer the benefits of variable capacity tanks. In addition, some plastic variable capacity tanks may be equipped with an inert gas system to create a protective atmosphere above the wine surface. This feature can help prevent oxidation and spoilage of the wine.

• Concrete variable capacity tank

Concrete variable capacity tanks are designed to offer the benefits of both concrete and variable capacity tanks. They are made of high-quality concrete that is corrosion-resistant and food-safe. In addition, the floating lids are specially designed to minimize headspace, allowing winemakers to adjust the tank's volume based on their production needs. Concrete variable capacity tanks are often used for wine fermentation and aging, providing excellent stability and insulation for the wine.

Specification and maintenance of variable capacity tanks

• Specifications

Variable capacity wine tanks are available in various sizes, from small tanks suitable for home winemaking to large industrial-scale tanks. Common capacities include 300L, 500L, 1000L, 2000L, 3000L, 5000L, 10000L, and more. The exact capacity needed will depend on the scale of winemaking operations and the typical volume of wine produced. The height, diameter, and shape of the tank can also vary. For example, cylindrical-shaped tanks are popular due to their efficient use of space and wine-mixing capabilities. The weights, dimensions, and features of variable capacity wine tanks will vary according to their size and construction materials.

For example, a 1000L variable capacity wine tank may have the following specifications:

Capacity: 1000L

Material: Food-grade stainless steel

Height: 1750mm

Diameter: 1000mm

Weight: 67kg

• Maintenance

Proper maintenance is essential for ensuring the performance and longevity of variable capacity tanks.

Regular cleaning is crucial to prevent contamination and off-flavors. To start with, drain the remaining wine from the tank, and rinse the interior with warm water. Use a mild detergent or specialized tank cleaner to scrub the inside surfaces thoroughly. Pay extra attention to any residue or sediment buildup. Rinse the tank with clean water multiple times to ensure all cleaning agents are fully removed. Sanitizing the tank after cleaning is also necessary to kill off any remaining bacteria or yeast. Choose a food-grade sanitizer and follow the manufacturer's instructions carefully.

Inspect the tank for any signs of damage, such as dents, scratches, or leaks. The gaskets and seals should also be checked and replaced if they are damaged or worn out. It is important to maintain the tank's temperature control system and ensure that all components are functioning properly. Regular inspection of the cooling jacket or temperature probe can help identify any issues in a timely manner. For tanks with an airlock or vent, pay attention to its condition to ensure proper functionality.

Overall, following a regular maintenance schedule and conducting routine inspections are key to keeping variable capacity tanks in optimal condition.

Scenarios of variable capacity tanks

Variable capacity wine tanks are crucial to the winemaking process. However, they are also useful in other scenarios, as detailed below.

• Winemaking Industry

Many wineries have started using variable capacity wine tanks. These tanks are suitable for winemakers who have to work with different harvest volumes every year. The tanks are easily adjustable, making them advantageous for wineries that experience fluctuating wine production. Variable capacity wine tanks are also suitable for winemakers who want to experiment with small-batch wines or premium wine production.

• Chemical and Pharmaceutical Industry

Variable capacity tanks are used in the chemical and pharmaceutical industries to mix, store, and transport various liquids and chemicals. These tanks can adjust their capacity to meet changes in production volume, making them suitable for industries that deal with different batch sizes.

• Food and Beverage Industry

Variable capacity tanks are used in the food and beverage industry for brewing, distilling, and processing operations. They can accommodate changes in production demand and raw material properties, making them suitable for producing a wide range of food and beverage products.

• Other Industries

Variable capacity tanks are also used in other industries, such as the automotive, construction, and energy industries. They can be used for storing and processing lubricants, fuels, hydraulic fluids, and other materials that require flexible storage capacity. Additionally, variable capacity tanks can be used in water treatment and environmental protection applications to adjust to changing water treatment needs.

How to choose variable capacity tanks

Choosing the right variable capacity tank for wine starts by assessing the needs and goals of the winery. Consider the typical volume of wine produced and whether the winery plans to expand in the coming years. Select a tank that can accommodate current production needs while also having the flexibility to scale up.

Investigate the types of wine produced by the winery. Different wines require specific tank materials and features. For example, stainless steel is a common choice for its versatility and hygienic properties. However, oak is often used for fermenting red wines. If the winery produces wines that may benefit from oak aging, make sure to have some tanks made from this material.

Consider the winemaking process and the functional requirements of the tank. For example, if the winery performs fermentation on the skins, a tank with an open top might be preferable. If frequent punch downs are required, easy access to the interior is important. Some wineries prefer tanks with a small diameter and a larger height to maximize the skin-to-juice ratio.

Assess the available space in the winery. Variable capacity tanks come in a variety of sizes and shapes. Make sure the tank chosen can fit through any doorways and passageways to reach the desired location. Also, consider the height of the tank and make sure there is enough headspace for routine winery tasks and the use of equipment.

While the price is important, it is also important to consider the overall value and long-term benefits of the investment. Choose a tank that offers durability, performance, and support. It may be helpful to gain insights from other winemakers with variable capacity tank experience. Take the time to research tank manufacturers and request references from satisfied customers. A reputable manufacturer can provide valuable assistance and guidance throughout the selection and purchase process.

Variable capacity tank Q & A

Q1: What is the difference between a variable capacity tank and a fixed capacity tank?

A1: The main difference between a variable capacity tank and a fixed capacity tank is that the former is designed to change its size and volume according to the contents being stored, while the latter has a fixed size and volume. Therefore, a variable capacity tank can be used for products that may require changes in volume or size during the storage process, such as fermentation in the wine industry, while a fixed capacity tank cannot.

Q2: What are the benefits of using a variable capacity tank?

A2: A variable capacity tank offers several benefits for businesses. First and foremost, it provides flexibility in adjusting the tank's volume to suit different production needs, saving storage space and lowering costs by eliminating the necessity for multiple tanks of various sizes. Second, it allows for more accurate temperature control and even aging or fermentation of the product by utilizing an integrated cooling/heating system. Finally, it ensures product quality and consistency by allowing operators to keep a close eye on changes in volume and production processes.

Q3: What are the most common applications of variable capacity tanks?

A3: Variable capacity wine tanks are commonly used in the winemaking industry for fermentation, aging, and storage of wine. They can also be used to store other beverages or liquid products that may need to change volume during processing, such as beer, cider, spirits, or soft drinks. In addition, they have applications in industries such as food processing, chemical processing, and pharmaceuticals.