KR880000768A - Waste Heat Recovery Apparatus for Boiler Flue Gas - Google Patents

Abstract

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Description

Waste Heat Recovery Apparatus for Boiler Flue Gas

As this is a public information case, the full text was not included.

1 is an overall schematic view of an apparatus according to the invention. 2 is an excerpt of the main portion of the apparatus according to the present invention, (a) is a front view and (b) is a side view.

Claims (2)

The heat exchange part 2 formed inside the body having a plurality of vertical exhaust gas pipes and a series of channels which vertically surrounds the exhaust gas pipes are separated into upper and lower heat exchange parts 2A and 2B around a space part thereof. The exhaust gas duct 1A, 1B from which the combustion exhaust gas from the boiler combustion chamber is discharged vertically is connected and installed, and the boiler feed water supply pipe 4 is connected to the upper inlet of the internal heat exchanger 2. Water supply discharge pipes 6 and 7 are connected to the water supply end portions of the upper and lower heat exchange parts 2A and 2B, respectively, so as to communicate between the water supply discharge pipes 6 and 7 through the connection pipe 8, respectively. Among them, the distal end of the upper feedwater discharge pipe 6 is connected to the suction side of the boiler feedwater supply pump 61, and at the same time, the circulating pump on the extension of the lower feedwater discharge pipe 7 and the electric feedwater supply pipe 4 41) Between the suction side, open the water supply circulation pipe (9) with the injector (91) The automatic on / off valve 62 which is controlled by the temperature sensing rod 11 installed in the exhaust gas duct 1B on the upper water supply discharge pipe 6 is installed and on the water supply circulation pipe 9. The automatic opening / closing valve 92 which is suitably controlled from the pressure sensing rod 63 installed on the suction side of the boiler feed water supply pump 61 is installed, and a predetermined steam nozzle heater 42 is provided on the feed water supply pipe 4. The automatic on / off valve 44 on the steam supply pipe 43 is controlled by the temperature sensing rod 45 installed on the water supply pipe 4 between the steam nozzle heater 42 and the heat exchanger 2. And a boiler combustion vessel provided with a spirally wound structure (10) having alternately formed inclined portions (10A) and (10B) and a connecting portion (10C) in a manner such that stirring rotation and swinging are possible in the interior of each electric exhaust gas pipe. Waste gas recovery device for gas. The heat exchange part (2) according to claim 1, wherein the heat exchange part (2) has a plurality of circular plates (22A) (22B) (22C) (22D) in place in one outer cylinder (21) connected between the exhaust gas ducts (1A) (1B). ) Horizontally installed, but a predetermined space portion 23 is formed inside the outer cylinder 21 between the middle diaphragms 22B and 22C, and the upper diaphragm 22A and 22B centering on the space portion 23. The upper and lower exhaust gas pipes 24A and 24B of constant diameter are arranged between the lower and lower diaphragms 22C and 22D so that their respective inner ends face each other in a straight line in the space 23, and the outer ends thereof are exhaust gas ducts. (1A) (1B) A plurality of connections are provided so as to be in communication with each other, and a series of channels (25A) are formed so that a series of channels that simultaneously surround and exhaust the exhaust gas pipes (24A) and (25B) are formed inside the outer cylinder (21). (25B) (25C) (25D) (25E) alternately horizontally excrete, and the upper and lower spaces 23 of the channel formed in this way, the connecting pipe having a valve (31) 3) A device for utilizing waste heat recovery of boiler combustion exhaust gas, characterized in that the structure is connected to. ※ Note: The disclosure is based on the initial application.