Operation of U+A Heat Exchangers
Our tube bundle or double-tube heat exchanger are equipped with static mixing elements, for thermal gentle heat treatment of highly viscous liquids.
This equipping of the heat exchanger results in significant advantages:
The performance of the heat transfer can be increased up to 6-fold compared to a conventional heat exchanger.
The product flow is moved from the pipe wall to the center of the pipe by the radial flow of the spiral mixing elements. In addition, each of the mixing elements divides the current and reverses the direction of rotation whereby a product-friendly heat transfer with simultaneous homogenization is achieved. Temperature and flow gradients are reduced.
A consistent quality of the end product is guaranteed in this way.
The retrofitting of existing heat exchangers with static mixers is also possible without any problems, because the mixing elements are available in welded, brazed or removable versions.
By retrofitting existing heat exchanger with static mixing elements chains, the heat exchanger capacity may be increased. Product damage on the tube inner wall can be avoided. The use of higher temperatures of the heating medium is now possible.
Advantagers of U + A Heat Exchangers
1. Up to 6-fold increase in performance of heat transfer
2. Easy cleaning thanks to removable mixing elements.
3. Mixing elements can also be adapted to sensitive media
4. Maintenance-free and low wear, because there are no moving parts
5. Easy retrofit into existing systems
Our hot water station is recommended wherever a product flow in a pipeline needs to be heated as much as possible within the shortest possible time.
U + A offers these customer-specific with a defined scope of services and complete control equipment with and without auxiliary energy.
The hot water station consists of several steam injectors, a control thermostat, a control valve with or without auxiliary energy as well as the necessary connections.
The hot water station is available as a complete unit up to a nominal diameter of 250 mm, but custom-made products are possible.
After being installed in the system, the assembly without auxiliary energy works completely independently and does not depend on an external energy supply.
Despite the designation “hot water station”, of course other suitable media can also be heated. The number and size of the steam injectors is determined individually depending on the requirements with regard to the flow rate and the temperature to be achieved.
By connecting the hot water station to the control device, the temperature to be reached can be set precisely, up to approx 220°C.
The version without auxiliary energy results in further advantages, since the control thermostat and the control valve work without auxiliary energy, there is no risk of influencing the measured values, for example through voltage peaks. There is also no need for expensive and, especially at high temperatures, susceptible cabling to control cabinets.
Cast materials and stainless steels are used for the control device. The steam injectors are made of steel or stainless steel. Other materials, such as Hasteloy, PTFE and nickel can be used if necessary. For abrasive media, the trim can be enamelled or provided with particularly suitable special coatings.
Due to the low follow-up costs, investments in steam injectors or hot water stations pay for themselves much faster than other methods.