The invention relates to heat
engineering,
power engineering and the field of
electric heating of liquids, water for instance; it can be used in circulation
water heating systems and
hot water supply, and as a universal device for diverse electric heaters. An object of the invention are to enhance the ease of fabrication, fabricability, and
operability for block electrodes and
electrode heating boilers on the whole, to increase the reliability of device both in static and dynamic
modes ones. The invention meets an object of extended performance capabilities, versatility and flexibility of the device, potential diversification and enhancement of adaptability in solving particular problems. Moreover, the invention allows improvement of
convection in
water heating boilers and reduction of uniformity of
sludge and
rust deposition on electrodes thus increasing the heater effective performance time. The invention object comprises an improvement of protection against breakdowns between the electrodes as well, phase
current load imbalance reduction,
electrode protection against non-uniform deformation during operation in dynamic conditions. It is also an object of the invention to extend i the range of constructional
capacity control without design and dimensional changes. FIG. 2 provides a
schematic of electrodes (1) arrangement on the basis (3) located on the inner case (2) side with electrodes (1) slightly deviating from the longitudinal
symmetric axis of the case (2) and irregularly spaced on the basis,
electrode longitudinal axes deviating from each other at small angles. (4)—outer electrode terminals (1).