SU901755A1

SU901755A1 - Contact-surface gaseous water heater

Info

Publication number: SU901755A1
Application number: SU802907945A
Authority: SU
Inventors: Александр Александрович Кожевников
Original assignee: Пензенский Инженерно-Строительный Институт
Priority date: 1980-04-11
Filing date: 1980-04-11
Publication date: 1982-01-30

Description

(54) КОНТАКТНО-ПОВЕРХНОСТНЫЙ ГАЗОВЫЙ ВОДОНАГРЕВАТЕЛЬ(54) CONTACT-SURFACE GAS WATER HEATER

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изобретение относитс к энергетике и может быть использовано в установках дл нагрева воды.The invention relates to energy and can be used in installations for heating water.

Наиболее близким к предлагаемому вл етс контактно-поверхностный газовый нагреватель, содержащий корпус с установленными в его верхней части оросительной насадкой, а в нижней - блоком размещенных в вод ной рубашке теплообменных элементов, отделенных от насадки наклонной перегородкой и подключенных нижними участками к источнику гор чих газов, а верхними - к полости корпуса 1.Closest to the present invention is a contact-surface gas heater, comprising a housing with an irrigation nozzle installed in its upper part, and a lower part with a block of heat exchanging elements placed in a water jacket, separated from the nozzle by an inclined partition and connected to the source of hot gases , and the upper - to the cavity of the housing 1.

Недостатком известного водонагревател вл етс - низка эффективность из-за слабо развитой конвективной поверхности нагрева.A disadvantage of the known water heater is the low efficiency due to the poorly developed convective heating surface.

Цель изобретени - повышение эффективности нагрева.The purpose of the invention is to increase the heating efficiency.

Указанна цель достигаетс тем, что оросительна насадка снабжена обводным газовым каналом с клапаном, а каждый теплообменный элемент образован соосно установленными трубами, образующими кольцевые каналы дл прохода газов, причем внутренние трубы теплообменных элементов последовательно соединены между собой и образуют с упом нутой вод ной рубашкой контур циркул ции.This goal is achieved by the fact that the irrigation nozzle is equipped with a bypass gas channel with a valve, and each heat exchange element is formed by coaxially installed tubes forming annular channels for the passage of gases, the inner tubes of the heat exchange elements are sequentially interconnected to form the circulating circuit with the water jacket. of

На чертеже изображен контактно-поверхностный газовый нагреватель, общий вид, 5 разрез.The drawing shows a contact-surface gas heater, general view, 5 section.

Контактно-поверхностный газовый водонагреватель содержит корпус 1, в верхней части которого расположена оросительна насадка 2, а в нижней - вод на рубашка 3, в которой размещен блок теплообменных элементов 4, отделенных от насадки 2 наклонной перегородкой 5 и подключенных нижни.ми участками к источнику 6 гор чих газов, а верхними - к полости корпуса 1, насадка 2 снабжена обводным газовым каналом 7 с клапаном 8, а каждый теплообменный элемент 4 образован соосно установленными трубами 9, образующие кольцевые каналы 10, в которых внутренние трубы соединены последовательно между собой и образуют с вод ной рубашкой 3 контур 11 циркул ции, к которому подключено водораспределительное устройство 12, расположенное над оросительной насадкой 2. С вод ной рубашкойThe contact-surface gas water heater includes a housing 1, in the upper part of which an irrigation nozzle 2 is located, and in the lower part - water on a shirt 3, in which a block of heat exchanging elements 4 is placed, separated from the nozzle 2 by an inclined partition 5 and connected to the source 6 hot gases, and the upper gases to the cavity of the housing 1, the nozzle 2 is equipped with a bypass gas channel 7 with a valve 8, and each heat exchanging element 4 is formed by coaxially installed pipes 9, which form annular channels 10 in which internal pipes s connected in series with each other and form a water-jacketed 3 circulating circuit 11 that is connected to water distribution device 12 is disposed above the irrigation nozzle 2. With water jacket

Claims

The claims are connected by a pipe (fitting) 13 for draining water.

The water heater operates as follows.

Water from the water distribution device 12 enters the irrigation nozzle 2, is heated in it to the temperature of the wet thermometer and is accumulated in the lower part of the housing 1, from where it is fed through the circulation line 11 to the water jacket 3, where it is heated by the flue gases coming from the source of hot gases 6, through the walls of the pipes 9 both from the inner and the outer sides of the annular channels 10 of the heat exchange elements 4, and then again enters the water distribution device 12. The water is taken through the nozzle 13.

The temperature of the water heating and the heat output of the irrigation nozzle 2 are controlled by changing the volume of flue gases through the nozzle 2 with the help of the bypass channel 7 and valve 8.

The proposed design of a contact-surface gas water heater can improve its efficiency.

A contact-surface gas water heater containing a housing with an irrigation nozzle installed in its upper part and a block of heat-exchange elements located in the water jacket separated from the nozzle by an inclined partition and connected by the lower sections to the source of hot gases and the upper ones to the cavity of the body, in the lower part, characterized in that, in order to increase the heating efficiency, the irrigation nozzle is equipped with a gas bypass channel with a valve, and each heat exchange element is formed by coaxially mounted pipes They form annular channels for the passage of gases, moreover, the internal pipes of the heat exchange elements are connected in series with each other and form a circulation loop with said water jacket.