GB190816892A - Improvements in or relating to Humidifying Apparatus - Google Patents

Abstract

16,892. Thompson, A. W. Aug. 13,1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Spray-producers.-In apparatus for humidifying the air in factories &c., means are provided for introducing a pressure fluid tangentially into a chamber so as to induce therein a flow of liquid. which is atomized and ejected from the chamber by the energy of the rotating fluid. The general arrangement of the apparatus is shown in Fig. 1. The water supply pipe W<x> is provided at intervals with upright nipples w<1> in which the water is kept at a normal level WL by any means such as by a tank and float valve. The water in the supply pipe is not under pressure. Each nipple w<1> is provided with a valve w<x> and is connected by a flexible pipe w<2> to a spraying-nozzle V, which is connected by a coupling f to the pipe F conveying the fluid under pressure. The atomizing-chamber is shown in Fig. 4. The fluid under pressure passes up through the bore 9 and enters the cylindrical chamber 6 through the tangential inlet 10. The chamber 6 is closed at one end by a plate 3 having a central orifice 4, and at the other end by the water-inlet member 11 screwed into the head 1. The water-inlet member shown in Fig. 4 is for use with compressed air as the atomizing-agent. The centrifugal action of the fluid admitted through the inlet 10 causes a partial vacuum in the chamber 6, thus causing the water in the nipple w<1> to flow through the pipe w<2> when the valve w<x> is opened. The energy of the rotating fluid atomizes the water as it issues from the pipe w<3>, and. the fine spray passes out from the chamber 6 through the outlet 4. The water-inlet member shown in Fig. 6 is for use with steam as the atomizing-agent. The water-discharge nozzle 26 is screwed into a plug 20 which is screwed into the head 1. The end of the nozzle 26 is coned and fits tightly against the coned end of the plug 20, and an axial outlet 22 passes through both. The tip of the plug 20 protrudes slightly through the outlet 4. An annular chamber 30, open to atmosphere, keeps the nozzle 26 cool. To collect any drainage from the condensation of steam at starting, a shield 40, Fig. 7, is fitted to the head of the nozzle, the opening in the shield being large enough to clear the jet of spray. A pipe 43 carries the condensate back to the water-supply system. The amount of water used may be regulated at one point for the whole system, or by the individual valves w<x>, and the amount of spray may be governed by regulating the pressure of the vapourizing-fluid. Shut-off valves may be fitted in the bosses f<1>, and when steam is used as the vapourizing- fluid, the plug 20 may be screwed in until the coned tip closes the outlet 4.