SU615234A1 - Frothing device - Google Patents

Description

(54) DEVICE FOR OBTAINING FOAM

The invention relates to the mining industry and can be used to extinguish earthfire fires at atmospheric temperatures.

A foam generator is known, consisting of a housing with a guide pipe, a compressed air distributor equipped with perforated fl tubes.

However, such a foam foam generator design does not have special devices, which exclude frosting of the foam-generating grid during the generation of foam in negative temperatures.

A known foamer installation includes a housing, a fan, a spray gun, a foam generator and heating elements and a container for a frother 2.

The disadvantage of this installation is the low efficiency of extinguishing fires with foam under conditions of denial of temperatures.

The aim of the invention is to increase the efficiency of extinguishing fires with foam in conditions of different temperatures,

For this, the tank is equipped with a recirculation pump and piping, the coping element is made in the form of a tubular lattice, and the heating element is installed in the tank for the foam, while the foam generating element is connected via one pipe to the heating element and through another - to a recirculation pump.

In the drawing, a device is illustrated, the common view.

The device is mounted on the chassis of the mine trolley 1, the capacity of which is divided into three compartments: -Grueovo 2 for installation and equipment in the transport position, compartment 3 of the foaming agent tank and heating compartment 4. The device includes a pegenerator case 5, J sprayer 6, which generates a cold element 7 that serves simultaneously. C: Thermal heating device for heating the foaming mixture of the mixture and in KGGV of the foamed-in air Elamesga valve 5ggor 8, mixer 9, heating element 10, recirculation pump 11, batch switch s 12 connecting with sleeve 13. Compartment 3 foaming agent container connected to a heating compartment 4 via the channels 14 and 15 with recirculation kranamts 1b and 17 control them. The heating fluid is pumped and pumped through 11 through the foam element 7 through pipelines 18 and 19. The device is operated as follows. To perform the work on the foam generation under conditions of temperature, the installation is simulated in the foam foam (ventilation column) and the air pressure sensor fan cm 8, at any distance from it, then the foaming agent in compartment 4 is heated by turning on the heating element 10 and then switching on the recirculator {rotary pump 11 to heat the foam generator 7. By that dostyzhenkn zayashyuy tempersh-ury kvgreva tubular lattice penogvkvriruyuschego alvmenta oviovremvnno chayut including The fan 8 and pop & chu penoobraaukk necks mixture. At t (M Hanq from the fire-fighting pipeline piping system, pre-supply the foam intake from the compartment 3 to cm "to the swiveler 9 n sa; shalter &Q; b, the ventilation 8 to suck the air from the air into the chamber at 10 cm. bilobed, where the mixture, tip the flow of the junctional tubular |} foam foaming into the luminaire 8 is heated and forms to the left. At the exit of the device the mixture with a positive temperature. At a lower temperature of the mouth, the heat sink in the compartment 3 is also heated, al which turn cranes 16 and 17 open The channels 14 are reincircated in 15. In this case, the foaming agent, which is used to generate foam, will also be warmed up. The use of a tubular foam generator (} of the shrinking element under conditions of generating foam at negative temperatures allows: to ensure the reliability and safety of work during a fire in mines that are hazardous for gas and sh, (lsch increase the multiplicity of foam and reduce the frother consumption to eliminate the possibility of frosting of the generating element, as well as heating the entire volume of water used. FORMULA 3 ABB RATTF A device for producing foam, including a casing, a fan, a dispenser, foaming at alemegca and a foam container, differing from the fact that, with an aelement of heightening effect, a steaming liquid rises under conditions of freezing temperatures, it is equipped with a recirculation of fuel and pipe fittings, the foam element is made of a tubular lattice, the heating element is installed in a foam generator, the foam atom is connected. About pipe 4 of the heat exchanger with heater alemeng, and by means of another - with a PM1 pump with an ion pump. {Sources of information, accepted in external nfw Akspertney: 1. Avtfskoe svndet1vlstvo) 294945, “l. E 21 G S / 00, 1970. 2. Author's certificate h 329323, ow. E 21 F 5 / GS, 1970. y power supplies