SU1474430A1 - Heat-exchanger/degaser - Google Patents

Abstract

Invention m. used in ground schemes of geothermal installations. The purpose of the invention is to reduce heat loss and reduce the material intensity of the heat exchanger. On the upper bottom 2 of the cylindrical body 1, a cylindrical shell 8 is fixed, forming an annular gap 9 with the case. At the inlet to the nozzle 5 of the gas-containing heat carrier (TH), a coil 10 is placed inside the shell 8 and communicated at the outlet with an annular perforated collector 11 installed under shell in the area of the annular gap. Nozzles 4 and 5 respectively. supplying liquid and discharging gas-bearing TG is connected to gap 9, and nozzle 7 for discharging vapor-phase TH to the internal cavity of shell 8. Heat losses are reduced due to the organization of interaction of the supplied gas-containing heat pump through the walls of the coil 10 with exhaust steam of the pump, vaporized HP through the walls of the shell 8 - with exhaust gas-containing TN, and the latter - with a coolant. The reduction of m-differences between the interacting HPs makes it possible to reduce the number of thermal insulation on the sidewall 8. 1 sludge.

Description

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The invention relates to a power system and industrial heat engineering, namely to the field of mixing heat and mass transfer apparatus, and can be used in ground-based geothermal installations.

The purpose of the invention is to reduce heat loss and reduce material consumption.

The drawing schematically shows the proposed heat exchanger-degasser longitudinal section.

The heat exchanger-degasser contains a cylindrical body 1 with an upper 2 and lower 3 bottoms, equipped with nozzles 4-7 for supplying liquid and gas-containing coolants, discharging gas-containing and vaporous coolants, respectively. Inside the housing 1, a cylindrical shell 8 fixed to its upper bottom 2 is formed, which forms an annular gap 9 with the side walls of the housing 1. A branch pipe 4 for supplying a heat transfer fluid is connected to an annular gap 9, and its output section is located below the liquid level in the housing 1. A branch pipe 5 for supply the gas-containing coolant is connected to the coil 10, the output section of which is connected to an annular, for example, toroid-shaped perforated collector 11, located in the zone of the annular gap 9 below the liquid level. The housing 1, the bottoms 2 and 3, and the shell 8 are provided with thermal insulation 12 and 13. In the annular gap 9 there are transverse partitions 14 made in the form of rings. The lower edge of the shell 8 is located below the level of the liquid in the housing 1 and the grid 15 is fixed on it.

The heat exchanger-degasser works as follows.

The gas-containing coolant is supplied to the heat exchanger-degasser casing 1 through the gas-containing heat-transfer pipe 5, enters through the coil 10 into the collector 11 and comes out through the perforations in the form of bubbles, interacting with the liquid, while the condensable components of the gas-containing heat carrier partially condense. The gas-containing coolant is released in the annular gap 9 and is discharged through the pipe 6. To prevent the formation of bubbles inside the shell 8

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A grid of 1 5 in the form of a cylinder without bottom is attached to its lower end. Heat transfer fluid is fed through

g nozzle 4, is heated and mixed with the heated liquid of the heat-containing coolant. Due to the heating of the liquid by the gas-containing coolant, the liquid

10, which contains the partially condensed components of the gas-containing coolant, evaporates inside the shell 8, thereby forming a vapor-like coolant, which leaves 15 through the nozzle 7.

The lower end of the shell 8 is immersed in liquid, therefore, it is impossible for the gas-containing heat carrier enriched in gas components to interact, discharged through the nozzle 6, with the vapor-like heat carrier discharged through the nozzle 7, as a result of which the heat carrier is cleared of gas. The organization of the interaction of the supplied gas-containing coolant through the walls of the coil 10 with the evaporating vaporous coolant, the vaporous coolant through the walls of the shell 8 with the exhaust gas-containing coolant, and the latter with the cooling fluid reduces the heat loss. Reducing the temperature differences between the interacting heat transfer fluids makes it possible to reduce the amount of heat35

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shell insulation 8.

Thus, the proposed heat exchanger-degasser helps reduce heat loss and reduce material consumption.

Claims (1)

Invention Formula Exchanger degassing, comprising a cylindrical housing with pipes for supplying liquid and gas-containing coolants and outlet gas-containing and vaporized coolant, a cylindrical sleeve is fixed on the upper bottom housing and forming with the housing an annular gap, and a coil, use it with your inlet to the conduit for supplying gas-containing heat transfer fluid, characterized schiys By the fact that, in order to reduce heat losses and reduce material consumption, the heat exchanger is additionally equipped with an annular perforated ring. The lecturer installed under the shell-gas-containing coolants is scooped in the zone of the annular gap, and connected to the annular gap, and the pumper is placed inside the shell and the vapor heat source at the outlet to the collector, and 5 the internal cavity of the two pipes for the supply of liquid and gull removal.