Dimple Plate welding contours optimizing heat transfer and pressure drop
For many applications in industrial process technology, dimple plates are technically and ecomically advantageous over conventional heat exchangers. The flexible design of each pillow plate allows tempering of products during other process steps. Apart a pillow plate fulfills a better mechanical resistance according thermal cycling.
Dimple Plate welding contours in any shape
By manufacturing on CNC-controlled laser welding equipment, welding contours can be produced in any shape. On the one hand, this allows flexible shaping of the dimple plate. Thus, pillow plates in simple rectangular shape, can be produced just as easily as round plated or plates with complicated geometric outer contours. Cut-outs of any shape and size, e.g. for the feed-through of pipes or cables can be easily realized in this way. On the other hand, the flow arrangement for the medium in the pillow plate can also be flexibly designed by means of appropriate shape of weld seams. The flow arrangement can be easily adapted to the flow rate of the heating or cooling medium in the plate, thus optimizing heat transfer and pressure drop.
Core business of a dimple plate
Behind all the solutions we offer are our employees with their expertise. Mainly directed to process engineering, thermodynamics, fluid mechanics, pressure equipment and welding technology. We keep extensive know-how gained from decades of experience in the design and manufacture of heat transfer plates. As well as we know the specific requirements of the various industries, in which dimple plates are used, and our solution can meet them to complete satisfaction. We offer engineering companies, plant manufacturers and operators from wide range of industrial sectors individual advice and precise anylysis. Mainly within their heating and cooling tasks. We do focus on the aim of arriving at a solution that is optimally tailored to their needs. Both technically and economically. We support our customers in the planning, design and integration of our product into their overall system. This eliminates interfaces and the associated risks for our customers.
Single and double embossed dimple plate in use for various applications
Single or double embossed dimple plates are in use for various applications. Dimple plates profiled on one side can be used for temperature control. In general as heating or cooling of solid materials in direct contact, be it food or bulk materials. Dimple plates profiled on both sides, where two sheets of the same thickness are welded togehter, can be used in many process technology applications. For cooling or heating baths, these plates can be easily mounted directly in the bath tanks without need for complex assembly. In fluidized-bed reactors or dryers, the lower tendency to fouling and the easier cleanability proof to be advantageous. The continous heat transfer surface of the pillow plates is favorable when used as protection against thermal radiation or as flow breakers in stirred vessels. In industrial bread production in thermo-oil-heated ovens, thermal radiation from a flat heating element ensures uniform baking results.
Single embossed dimple plate in use as base plate tank wall
Individual dimple plates profiled on one side can be used in a variety of ways. Not only the mentioned above.
Dimple plates profiled on one side, in which a thinner cover plate is welded to a thicker base plate can be also used to buid walls or heads for tanks that need to be heated or cooled. The tank wall is directly formed by the thicker plate of the dimple plate.
Laser-welded or resistance welded Dimple plates and used materials
The production of any dimple plate is mainly based on laser welding, but also on resistance welding processes. The laser welding equipment used comes from the well-known manufacturers with a lot of experience in laser welding technology, such as the market leader Trumpf GmbH + Co. KG as our main component of our laser-welding process. For decades Trumpf GmbH + Co. KG sets THE standards in laser welding technology. This and the many years of expereince of our welding engineers guarantee the exceptional welding quality of our pillow plates.
In general, the materials used, are stainless steels as to be AISI 304 up to titanium. Stainless steel’s low thermal conductivity is partially counteracted with the ability to design thinner walls, because of its high strength and corrosion resistance. However carbon steel in the process fields, is mostly selected due to higher thermal conductivity.
The Dimple plate in today’s worldwide industries
Generally , the process and design execution is absolutely flexible. In focus is a very homogeneous temperature gradient, product-gentle and conciliatory tempering of products in general using liquids, refrigerant or steam as internal plate media. Even though laser welding technology is the most modern production method for dimple plate heat exchangers, there are many applications, in which resistance welding offers technical and qualitative advantages.
Hence projects of various branches in many different industries worldwide, start with an individual consultation. Decisive for the success of the project is the professional exchange about the details and requirements of the project. Of course, this always happens in close cooperation with the user in order to work out his optimal solution.