RU2067264C1 - Heat exchanger - Google Patents

Abstract

FIELD: heat power engineering. SUBSTANCE: heating chamber and gas duct are interconnected through heat pipes. The chamber for fluid to be heated is made up as pipes. The pipes are positioned inside the gas duct and enclose condensation zones of heat pipes to form ring passageways. The passageways are connected with the supplying and discharging manifolds. EFFECT: improved design. 1 dwg

Description

 The invention relates to a power system, can be applied in all areas of the national economy.

 The main disadvantage of all known boilers is their vulnerability to the failure of one of its constituent elements.

 A well-known boiler consisting of heat pipes (see A.S. USSR N 958793) is susceptible to severe carbon dioxide corrosion in the zones of condensation of heat pipes due to saturation of the heated water in the contact zone of the heating with carbon dioxide contained in the flue gas. Such a boiler cannot be considered reliable, since it will quickly fail.

 The aim of this invention is to remedy this drawback.

 This goal is achieved by the fact that in a boiler containing a heating chamber, a gas duct, heat pipes connecting them, a chamber of a heated liquid, an inlet and outlet pipe, a chamber of a heated liquid is made in the form of pipes located in the gas duct and covering the condensation zones of the heat pipes with the formation of ring channels connected to the inlet and outlet nozzles (collectors).

 This solution allows you to effectively use the heat of flue gases and maintain the operability (incomplete) of the chamber of the heated fluid in case of failure of the heat pipe of this chamber. The failure of one or more heat pipes allows the boiler to be operated without stopping. Thus, all boiler stops can only be planned to replace failed heat pipes.

 The drawing shows a diagram of the boiler.

 The boiler contains a heating chamber 1, passing into the gas duct 2, heat pipes 3 connecting them, the evaporation ends of which are located in the heating chamber, and condensing in the gas duct, located in the gas duct 2 and covering the condensing parts of the heat pipes 3 of the heating water chamber 4, to which the input 5 and output 6 collectors of heated water (liquid).

 The boiler works as follows: the heated fluid enters from the inlet manifold 5 into the chambers of heated water 4, where, taking heat both from the outside from the flue gases and from the condensation sections of the heat pipes 3 from the outside, passing through all the chambers in series, it enters the exhaust manifold 6. The internal coolant of the heat pipes, sensing radiant and convective heat in the furnace 1, boils and enters the gas duct 2 into the chambers of the heated fluid 4, where it condenses and returns under the influence of gravity again into the heating chamber 1 and the process resumes.

 Burning the heat pipe will cause the chamber of the heated fluid to receive heat only from an external source.

 Such a solution is capable of increasing their reliability while increasing the efficiency of the boilers. Facilitates the repair, consisting in the replacement of failed heat pipes.

Claims (1)

 A boiler containing a heating chamber, a gas duct, a chamber of a heated fluid, the first of which are interconnected by heat pipes, characterized in that the chamber of a heated fluid is made in the form of pipes located in the duct and covering the condensation zones of the heat pipes with the formation of annular channels connected to the inlet and discharge headers.