SU1143926A1 - Steam-water heat exchanger - Google Patents

Abstract

Steam-water teguoshenkov. The case having an apertkekei voya with puchxgm heat exchanging pipes fixed in bottom tube plates (Diverting and supplying chambers, and located above the last cooling compartment with a, ss1 communicated with the outlet nipple of the hull and fitted with guide baffles, and a steam supply nozzle fixed in the case from the side of the discharge chamber, characterized in that, with the whole intensification of heat exchange by separating the condensate from the heating steam, the condensate cooling compartment is located downward relative to the discharge chamber measures, and over the latter, an inclined visor and a vertical partition are installed, forming a separation compartment, communicated by openings in the upper and lower parts with the intertubular space of the housing, with the steam supply pipe located under said trump (Lcom in the area of this compartment).

Description

Oli Od CO

Yu

o The invention relates to energy, in particular to surface steam / water heat exchangers designed to heat water with heating steam. A steam-water heat exchanger is known that includes a housing with a one-pass bundle of pipes fixed in it, and a condensate cooler in the form of a CO coil. Closest to the invention is a steam / water heat exchanger, having a vertical housing with a bundle of heat exchange tubes, fixed in tube sections of the lower discharge and inlet chambers, and located above the last condensate cooling section, communicated with the discharge branch pipe of the housing and fitted with baffles, and a steam supply pipe fixed in the casing on the side of the diverting chamber 23. However, in a known steam-water heat exchanger, heat exchange is not sufficiently intensive due to the presence of separation of the entire volume of the tube bundle, which reduces the heat transfer from the heating steam and those temperatures, the exhaust heat medium. The aim of the invention is to intensify heat exchange by separating condensate from the heating steam. The goal is achieved by the fact that, in an Nom heat exchanger having a vertical casing with a bundle of heat exchanging tubes fixed in tube plates of the lower tapping and supplying chambers, and located above the last condensate cooling compartment, communicated with baffles, and a steam supply pipe fixed in the housing on the side of the discharge chamber, the condensate cooling compartment is located downward relative to the discharge chamber, and an inclined visor and Vertical, ne regorodka forming separation compartment communicated openings in the upper and lower portions of the annulus with the housing, the steam supply pipe is located under said well Tbw peak in a zone of the compartment. The drawing shows a steam heat exchanger, longitudinal section. The steam heat exchanger contains a vertical casing 1 with a bundle of heat-exchanging pipes 2, which are fixed in tube plates 3 and 4 of the lower discharge and supply chambers 5 and 6. Above the supply chamber b there is a condensate cooling compartment 7, equipped with baffles 8 and a message with a discharge pipe 9 of the housing 1. The steam supply pipe 10 is fixed in the housing 1 on the side of the exhaust chamber 5. The condensate cooling compartment 7 is located. displaced downward relative to the discharge chamber 5, above which the inclined visor 11 and the vertical partition 12 are installed, forming the separation compartment 13, provided by the openings 14 and 15 in the upper and lower parts with the annular space of the housing 1. The branch pipe 9 for supplying steam is located under the visor 11 in the compartment zone, 13. Steam heat exchanger operates as follows. The heated water is fed through the inlet chamber 6 into the bundle of heat exchange tubes 2, where it is heated and discharged through the outlet chamber 5 to the consumer. Heating steam is fed into the housing 1 through the nozzle 10 into the separation compartment 13, in which steam is cooled in the event of its supply being superheated to the saturation temperature or separation if it is supplied saturated. After separating and releasing heat in compartment 13, steam enters through annulus 14 into the annular space of housing 1, and condensate flows through opening 15 into compartment 7. On heat exchange pipes 2, the pre-separated condensation occurs (condensate through pipes 2 and visor) 11 flows into the cooling compartment 7. It changes its direction by installing in the last guide partitions 8, the condensate transfers its heat to the heat exchange pipes 2 located in it and is discharged through the outlet 9. The compartment is cooled The condensate is displaced downward relative to the outgoing chamber, the installation above the last inclined canopy and the vertical partition, forming a separation compartment, provided by openings in the upper and lower parts with j shell annular space. 1143 9264 and the location of the steam inlet pipe under the canopy to intensify heat exchange and more efficiently use the proposed steam water heat exchanger.

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Claims (1)

2. Copyright certificate of the USSR B "1052783, cl. F 22 D 1/32, 1982. ¢ 54) A STEAM-WATER HEAT EXCHANGER having a vertical casing with a bundle of heat exchange tubes fixed in the lower tube sheets (outlet and inlet chambers, and located above the last condensate cooling compartment, in communication with the outlet branch pipe of the casing and provided with guides by partitions, and a steam supply pipe, mounted in the housing from the side of the outlet chamber, characterized in that, with the whole intensification of the heat exchange by separating the condensate from the heating steam, the condensate cooling compartment is located with an offset m down relative outlet chamber and installed over the last shade and the inclined vertical partition forming the separation compartment communicated openings in the top and bottom of annulus with the housing, the inlet tube 3 PA-ra located below said peak in a zone of the compartment.