摘要:
The invention provides a method of using a water heater arranged for heating an aqueous liquid wherein the water heater comprises a heating element to heat aqueous liquid in the water heater. The method comprising (a) heating aqueous liquid in the water heater with the heating element, wherein the heating element is in contact with the aqueous liquid; and (b) applying a first AC voltage between the heating element and a counter electrode and applying a second AC voltage between the heating element and the counter electrode, wherein the second AC voltage has a second AC frequency selected from the range of 0.02 Hz - 5 Hz and wherein the ratio between the first AC frequency and the second AC frequency is 2 or more.
摘要:
The present invention relates to an accumulator water heater (1) fitted with impressed current corrosion protection devices (5, 6, SC). The present invention also describes a method to regularly measure the value of the impressed current (Id) to be applied. Said accumulator water heater (1) can be additionally fitted with a cathodic protection device with sacrificing anode (4). The invention relates also to the alternative operating methods for the protection of the sacrificing anode (4) or of the impressed current, and to the methods designed to control the presence and degree of wear of said sacrificing anode (4).
摘要:
The present invention relates to an accumulator water heater (1) fitted with impressed current corrosion protection devices (5, 6, SC). The present invention also describes a method to regularly measure the value of the impressed current (Id) to be applied. Said accumulator water heater (1) can be additionally fitted with a cathodic protection device with sacrificing anode (4). The invention relates also to the alternative operating methods for the protection of the sacrificing anode (4) or of the impressed current, and to the methods designed to control the presence and degree of wear of said sacrificing anode (4).
摘要:
A hot water tank construction, an electrically operated heating element construction therefor and methods of making the same are provided, the electrically operated heating element construction (28, 28A) comprising a heating element (29, 29A) and an externally threaded fitting (30, 30A) for threading into an internally threaded opening (26, 80) in a wall (22, 22A) of the tank (21, 21A), the heating element (29, 29A) comprising an outer metallic tubular sheath (38, 38A) and an inner conductive heater wire (46) insulated from the sheath, the fitting (30, 30A) comprising polymeric material, the heating element construction (28, 28A) comprising an electrical resistance electrically interconnected to the sheath (38, 38A) and being adapted to electrically interconnect the sheath to the wall (22, 22A) of the tank (21, 21A), the polymeric material comprising an electrically conductive polymeric material that also comprises the resistance of the heating element construction (28, 28A).
摘要:
A magnetic filter (10) includes first and second separation chambers (10, 12). The separation chambers (10, 12) each have an inlet and an outlet, and the separation chambers (10, 12) are joined together such that the inlets of the first and second chambers are adjacent, and the outlets of the first and second chambers are adjacent. An inlet port arrangement (28) connects both inlets to a single inlet pipe, and an outlet port arrangement (30) connects both outlets to a single outlet pipe.
摘要:
A water heater tank anode support and or locator device for an anode provided in a water heater tank, the support device having an anode engaging portion to engage said anode, and a tank engaging formation for operatively engaging a base of the tank.
摘要:
The invention provides a heater arrangement and method for heating a liquid, wherein the heater comprises a heating element, wherein the method comprises (i) heating the liquid in the heater wherein the heating element is in contact with the liquid, and (ii) applying a potential difference between the heating element and a counter electrode, wherein the potential difference has an AC component whereby the potential difference varies with an AC frequency in the range of 0.01-100 Hz and wherein the potential difference is applied with a cycle time, wherein the potential difference has a sign during a first part of the cycle time that is opposite of the sign of the potential difference during a second part of the cycle time, and wherein during one or more of the first part of the cycle time and the second part of the cycle time, the potential difference temporarily changes sign.
摘要:
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).
摘要:
A multi-port adapter for a solar water heater and a solar water heater system incorporating the adapter. The multi-port adapter can be fitted to the existing geyser tank outlet at the top of the tank, simplifying the fitting greatly and leading to several other advantages.