SU885783A1

SU885783A1 - Heat exchanger

Info

Publication number: SU885783A1
Application number: SU792852273A
Authority: SU
Inventors: Михаил Алексеевич Верещагин; Георгий Петрович Долотов; Евгений Александрович Кондаков; Владимир Иванович Окунев; Борис Дмитриевич Притоманов
Original assignee: Московский Автомобильный Завод Им.И.А.Лихачева (Производственное Объединение Зил)
Priority date: 1979-11-15
Filing date: 1979-11-15
Publication date: 1981-11-30

Description

II

Изобретение относитс к теплообменным устройствам, в частности к охладител м газа или жидкости, и может быть использовано в термических цехах дл охлаждени закалочной жидкости , например масла, в котором происходит закалка деталей.The invention relates to heat exchangers, in particular gas or liquid coolers, and can be used in thermal workshops for cooling a quenching fluid, such as oil, in which parts are hardened.

Известны теплообменники, содержащие кожух с установленными в нем трубами .Фильда, подключенными внутренними и тупиковыми трубками соответственно к подвод щей и отвод щей коллекторным камерам Cl3.Heat exchangers are known that contain a casing with pipes installed therein. Field, connected by internal and dead-end pipes, respectively, to the supply and discharge collector chambers Cl3.

Эти теплообменники обладают недостаточной надежностью по следующим причинам. В данных теплообменниках давление охлаждаемой среды меньше давлени охлаждающей, так как патрубки подачи и слива охла одающей среды имеют oдинakoвыe диаметры. При разрыве охлаждающих элементов, происход щем в результате воздействи разности температур, охлаждающа среда (имеюща большее давлеиие ) смешиваетс с охлаждаемой средой и попадает в закалочную емкость, при этом, когда охлаждаема среда гор чее (при температуре выше 100°С масло, а охлаждающа - вода, то попадание воды в гор чее масло приводит к выбросу масла из закалочной емкости и загоранию его.These heat exchangers have insufficient reliability for the following reasons. In these heat exchangers, the pressure of the medium to be cooled is less than the pressure of the cooling medium, since the supply and discharge connections of the cooling medium have one diameter. When the cooling elements rupture resulting from the effect of the temperature difference, the cooling medium (having a higher pressure) mixes with the cooled medium and enters the quenching tank, while the coolant is hot (at a temperature above 100 ° C oil and coolant). water, then the ingress of water into hot oil leads to the release of oil from the quenching vessel and its ignition.

Цель изобретени - повышение надежности путем исключени попадани The purpose of the invention is to increase reliability by eliminating

10 охлаждающей среды в охлаждаемую.10 cooling medium in the cooled.

Указанна цель достигаетс тем, что в известном теплообменнике, содержащем кожух с установленными в This goal is achieved by the fact that in a known heat exchanger comprising a casing with

15 нем трубами Фильда, подключенными внутренними и тупиковыми трубками соответственно, к подвод щей и отвод щей коллекторным камерам, подвод ща коллекторна камера сообщен 15, the Field tubes, connected by internal and dead-end pipes, respectively, to the supply and discharge collector chambers, the supply collector chamber communicates

10 с атмосферой.10 with the atmosphere.

Claims

FIG. The proposed heat exchanger is shown; FIG. 2 the same in terms of. The heat exchanger contains a casing 1, Field 2 tubes with internal tubes 3 and dead-end tubes 4 connected respectively to the inlet chamber 5 and the outlet chamber 6, tube plates 7 and 8, branch pipe 9 for supplying a cooling medium to tubes 3, branch pipe 10 for its removal, the pipe 1 1 for supplying a cooling medium and the pipe 12. for its removal, as well as transverse partitions 13. The heat exchanger works as follows. Cooling medium, for example, water is supplied to the supply manifold chamber 5, and is distributed through the internal tubes 3, from where it enters the dead-end tubes 4 and then is drained into the discharge chamber 6 and is removed through a branch pipe 10. Coolant, for example, oil, nozzles 1I are fed into the housing 1, passes between the baffles 13, washing the dead-end tubes 4, and are discharged through the nozzle 12. The circulation of the cooled medium is performed by a pump. By communicating the ends of the dead end pipes with 4 atmospheres through the collector chamber, the pressure of the cooling medium is always lower than the pressure cooled and in the event of a malfunction, for example, when leaving the dead end of the dead end tubes, the cooled medium is drained together with the cooling, thus preventing cold water from entering and ensures safe operation of the heat exchanger. Claims of the invention A heat exchanger comprising a casing with Field's tubes installed therein, connected by internal and dead-end pipes, respectively, to inlet and outlet collector chambers, characterized in that, in order to increase reliability, the outlet collector chamber is in communication with the atmosphere. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 479444, cl. Р28 D 7/10, 1971.

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