What factors should be considered when choosing a heat exchanger?
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Our company is planning to purchase a unit that allows for plate replacement and brazing. We approached a trader, who recommended both domestic models as well as imported Alfa Laval models; the price difference between them is quite significant. Therefore, we would like to ask the experts here: what aspects should we pay attention to during the procurement process in order to avoid being deceived? Thank you!
Construction principle and characteristics of plate heat exchangers: Plate heat exchangers are composed of highly efficient heat-transfer corrugated plates and a frame. The plates are clamped by bolts between a fixed compression plate and a movable compression plate, thereby creating numerous flow channels inside the heat exchanger; the gaps between the plates are sealed with rubber. The compression plate has connectors for the connection of this device to the outside. The plate is made by pressing high-quality corrosion-resistant metal sheets; it has corner holes at the four corners for the medium to enter and exit, as well as hanging holes on the top and bottom. Herringbone ripples can increase perturbations in the fluid, enabling it to reach a turbulent state at low speeds and thus achieving high heat transfer efficiency. It also features a special structure to ensure that the two fluid media do not leak into each other. 1. It is sufficient to fully understand the structure, features, disadvantages, and material of the equipment; after that, compare different options and purchase one with a reasonable price