摘要:
In a recirculatory water system of the kind in which water is lost as water vapour, the invention provides a unit having ducting (1) through which part only of the water flows. The unit includes various components disposed in the following order along the ducting: a monitor such as a conductivity probe (9), blow-down means, consisting of an electrically- operated valve (14) and a flow regulator (15), a non-return valve (18) and dosing means (19, 20 and 21). When the monitor detects a concentration of dissolved solids greater than a predetermined concentration it causes blow-down, during which the valve is opened for a predetermined period. Thereafter, blow-down is inhibited for a further period. After a predetermined number of blow-downs, the dosing means adds such materials as biocides and chemicals to reduce corrosion and/or scale-formation, so as to replace those lost during blow-down.
摘要:
It comprises a vessel (1) defining, at the top thereof, a chamber (2) communicating with the vessel inetrior through a manually operable spring biassed check valve the body (3) thereof is formed with two radially extending holes (4), as provided upstream of the valve shut-off member (5), the vessel (1) being arranged on a base (11) including electric resistance heating means (12) and being further provided with safety and adjusting means (13, 15', 16') as well as with a generated steam outlet duct (17).
摘要:
Bei dem zu schützenden Sieder ist die Aufgabe zu lösen, in kürzester Zeit eine kleine Flüssigkeitsmenge zu erhitzen. Diese Aufgabe wird durch ein Gerät gelöst, das einen Wasserraum (10) aufweist, dem ein steuerbares vorzugswei se elektrisches Aufheizsystem zugeordnet ist. In dem Was serraum wird Dampf erzeugt und der Dampf wird über ein verstellbares Dampfrohr nach außen geleitet. Wird das Dampfrohr nun in die zu erhitzende Flüssigkeit getaucht, erhitzt der durchströmende Dampf diese Flüssigkeit.
摘要:
These improvements are directed to provide said device with two tanks, (1,4), one within the other, and both designed to be water filled (N1) without dousing the inside tank (4). Said tank (4) is top opened (5) and provided with a heating element (7) to achieve water ebulliency. The outside tank (1) has a delivery (2) wherefrom only the evaporated water (Ve) goes out while the engendered foam-water (Vp) is condensed and comes back to the outside tank (1). At the bottom of the inside tank (1) a hole (6) is provided with a section (d) which rate of water inflow (Vi) is equivalent to the evaporated water rate (Ve) plus the foam-water rate (Vp). The outside tank (1) has an inlet (3) to refill water therefrom when level reaches a minimum (N2). Applicable to any water diffusers in aesthetics and medicine.
摘要:
Chaudière électrique de production de vapeur compor tant des éléments chauffants plongés dans le liquide, lesdits éléments chauffants étant constitués par des tubes (1) ou des plaques, non isolés, électriquement conducteurs, alimentés électriquement à chacune de leurs extrémités (6, 7), les surfaces desdits éléments conducteurs étant en contact direct avec le liquide caractérisé en ce que lesdits éléments chauffants comportent des aspérités (2, 3) de manière à ce que ces surfaces ne soient pas isothermes.