SU1523871A1 - Contact-type heating apparatus - Google Patents

Abstract

The invention relates to a power system and can be used in contact-type heat exchangers. The aim of the invention is to intensify heat exchange with an increase in coolant flow beyond the calculated one, which is achieved by installing an attachment 4, made in the form of a wedge, the sloping faces of which are facing the pipe 1 installed along the plate 3 and forming a gap of a given size with the latter, which allows with an increase in the flow rate of the coolant over the calculated, maintain the required heating parameters of the coolant by increasing the contact surface of the coolant with the heating steam by separating elichennogo layer 4. The attachment of the heat medium 1 yl.

Description

one

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(22) 02.02.88

("46) 11/23/89. Bul k3 (75) V.I. Bratsev and V.I. Perkov (53) 663.63. (088.8)

(56) USSR Copyright Certificate No. (85278, Cl. F 22 D 1/30, 1U7 4.

USSR author's certificate ff 787859, cl. F 28 C 3 / 0b, 1980.

(5) CONTACT HEAT EXCHANGE DEVICE

(57) The invention relates to a power system and can be used in contact-type heat exchangers. The aim of the invention is

intensification of heat exchange when increasing the heat carrier flow rate over the calculated one, which is achieved by installing an attachment made in the form of a wedge whose sloping faces are facing the pipe 1 installed along the plate 3 and forming a gap of a given size with the latter in excess of the calculated coolant, save the required heating parameters of the coolant at the expense of; the magnitude of the surface contact of the coolant with the blue steam with the aid of the section of the enlarged layer of the coolant with the prefix 4. 1 Il.

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The invention relates to the field of heat and power engineering and can be used in contact type heat exchangers.

The aim of the invention is to intensify heat transfer with increasing flow rate of the coolant.

The drawing conventionally depicted contact heat exchanger.

The contact heat exchanger contains pipes 1 with holes 2 along the lower generatrix, mounted on the pipes of plate 3, attachments made in the form of a wedge, the sloping faces of which face the pipe 1 installed along plate 3 with which the attachment k forms a gap 5 of a given size .

Contact heat exchanger operates as follows.

The heat transfer medium entering the pipe 1 for heating, for example water, flows under pressure in small round jets through the holes 2 and on the plate 3 the jets are combined into one flat thin stream. With optimal water flow, the flat jet passes

five

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five

Claims (1)

into the gap 5 between the plate 3 and the prefix k. With a water flow above the optimum, all the water does not pass into the gap 5 and a part of the flat jet with the aid of an attachment deviates from the main jet with the formation of an additional contact surface of steam and water. As a result, the possibility of heating all the water to a higher temperature (to the saturation temperature) is increased. Invention Formula A contact heat exchanger containing pipes with openings along the lower generatrix and flat plates fixed to the pipes, characterized in that, in order to intensify heat exchange while increasing the flow rate of the coolant, it additionally contains attachments made in the form of a wedge whose sloping faces are facing the pipe installed along the plate, the attachments being placed with the formation of a predetermined size from the last gap.