SU992986A1

SU992986A1 - Contact-type water heater

Info

Publication number: SU992986A1
Application number: SU813332160A
Authority: SU
Inventors: Петр Николаевич Асанов; Борис Сергеевич Дроздов
Priority date: 1981-06-19
Filing date: 1981-06-19
Publication date: 1983-01-30

Description

(54) КОНТАКТНЫЙ ВОДОНАГРЕВАТЕЛЬ(54) CONTACT WATER HEATER

Изобретение относитс к энергетике и может (быть применено в металлургической , нефт ной, нефтеперерабатывающей и химической промышленности.The invention relates to the energy sector and can (be applied in the metallurgical, petroleum, oil refining and chemical industries.

Известен теплообменник, содержащий корпус с патрубками дл подвода и отвода теплообменивающихс сред, внутри которого размещена центральна труба с винтовыми поверхност ми, теплообмена, имеющими внутренние каналы дл теплоносител l3Недостатком известного теплообменника вл етс то, что теплообмен между средами осуществл етс только через теплопередающую поверхность.A heat exchanger is known, comprising a housing with nozzles for supplying and discharging heat-exchanging media, inside of which a central tube with helical surfaces is placed, heat exchange, having internal channels for heat carrier l3.

Известен тлкже контактный водонагреватель , содержащий корпус с патрубками подвода и отвода контактирующих сред, центральный стержень с винтовой перегородкой и винтовую перегородку, укрепленную на внутренней поверхности корпуса Г2.Known only contact water heater, comprising a housing with connections for supplying and discharging contacting media, a central rod with a screw partition and a screw partition fixed on the inner surface of the housing G2.

В данном водоподогревателе осуществл етс недостаточно полный контакт теплообменных сред ввиду того, что переток жидкости в нижнюю часть корпуса происходит в виде струй.In this water heater, there is an insufficiently complete contact of heat exchange media due to the fact that the flow of fluid into the lower part of the body occurs in the form of jets.

Известно устройство дл регенерации тепла из отход щих газов, содержащее корпус с патрубками подвода иA device for recovering heat from waste gases is known, comprising a housing with inlets and

отвода теплообменных сред с размещенньм в нем винтовой поверхностью с перфорированными участками.дл аэрации перемещаемого пр пустотелой винтовой поверхности сыпучего материала f 3 .removal of heat exchange media with a screw surface with perforated sections placed in it. for aeration of a floating right hollow screw surface of friable material f 3.

Недостаток этого устройства заключаетс в том, что плохо организован контакт теплообменивающих сред, The disadvantage of this device is that the contact of the heat exchanging media is poorly organized

10 причем сыпучий материал передвигаетс сверху вниз по винтовому коробу пр моугольного сечени и теплообмен осуществл етс через стенку винтовой поверхности.10 wherein the bulk material moves from top to bottom along a rectangular screw box and heat exchange takes place through the wall of the screw surface.

1515

Наиболее близким техническим решением к предлагаемому вл етс контактный водонагреватель, содержащий вертикальный корпус с расположенны20 ми в верхней части водораздающим и газоотвод щим патрубками, а в нижней водосборником, снабженным барбатером дл отвода гор чего газа, и соосно установленный в корпусе много25 винтовой шнек 4.The closest technical solution to the present invention is a contact water heater, containing a vertical case with water distributing and gas outlet pipes located in the upper part, and a multi screw screw 4 in the lower water collector equipped with a barbater for removing hot gas.

Claims

The disadvantage of this device is the low intensification of heat exchange, since heat exchange occurs only with a film of water moving along the auger. The purpose of the invention is to increase reliability by the intensification of heat exchange. This goal is achieved by the fact that half of each turn of the screw is made perforated, the perforated halves in adjacent turns are located relative to the axis of the screw with diametrically opposite sides. Figure 1 shows the contact water heater, a longitudinal section; Fig. 2 shows a section L-A in Fig. 1; The contact water heater contains a vertical casing 1 with a water distributing and flue gas outlet pipe 2 located in the upper part and a barbater 5 for introducing hot gas to the lower collector 4, and coaxially mounted in case 1 multiple screw auger 6. Half for 7 each turn of auger b is perforated, and perforated half 7 in adjacent turns are located relative to the axis of auger 6 with diametrically opposite sides. Contact water heater works as follows. Hot water is supplied through barbater 5, which heats the water during the bubble bath in the sump 4, and then through screw 6, washing its surface, the gas is discharged through the gas outlet pipe 3. Feed water is supplied through the water outlet pipe 2 to the auger 6 where it comes into contact with hot gases flows into the sump 4. Passage through the perforated half 7 of each turn of the screw 6, water partially flows in the form of jets or drops to the next turn. Thus, in addition to film-based contact of water with gas, additional heat exchange occurs due to the irrigation of hot gases, which intensifies heat exchange. Performing half of each screw aperture perforated and arranging the perforated halves in adjacent turns relative to the screw axis from diametrically opposite sides allows more efficient use of a contact water heater. The invention includes a contact water heater comprising a vertical housing with water distribution and gas outlet pipes located in the upper part, and a multi-turn auger coaxially mounted in the housing that, in order to improve reliability, intensification of heat exchange, half of each turn of the screw is made perforated, perforated halves in adjacent turns are located relative to the axis of the screw with diametrically opposite of the parties, the sources of information taken into account in the examination of 1, USSR Author's Certificate 151985, class, G 08 C 9/04, 1962. 2, US Patent 3419252, class 261-79, published, 1970. 3, German Patent 1070657 , cl. 17 f 10/03, published, I960, 4, US Patent No. 3582051, cl. 261-79, published, 1971.