JPH0446661U

JPH0446661U -

Info

Publication number: JPH0446661U
Application number: JP8719290U
Authority: JP
Priority date: 1990-08-20
Filing date: 1990-08-20
Publication date: 1992-04-21

Description

[Brief explanation of drawings]

第１図は本考案の実施例に係る排熱利用式ボイ
ラー装置の全体構成図、第２図は実施例装置に用
いる二管式熱交換器を一部を破断にして示す断面
図、第３図は第２図中の−矢示方向断面図、
第４図は熱媒の温度変化を示す線図である。１……ボイラー本体、１Ａ……排気筒、２……
熱交換器、７……通水コイル、２１……予熱給水
タンク、２３……低温水供給管、２４……給水ポ
ンプ、２５……高温水戻し管、２６……高温水供
給管、３１……サーモスタツト、Ａ……熱媒。 Fig. 1 is an overall configuration diagram of a waste heat utilization type boiler device according to an embodiment of the present invention, Fig. 2 is a partially cutaway sectional view showing a two-tube heat exchanger used in the embodiment device, and Fig. 3 The figure is a cross-sectional view in the direction of the − arrow in FIG.
FIG. 4 is a diagram showing the temperature change of the heating medium. 1...boiler body, 1A...exhaust pipe, 2...
Heat exchanger, 7...Water coil, 21...Preheating water supply tank, 23...Low temperature water supply pipe, 24...Water supply pump, 25...High temperature water return pipe, 26...High temperature water supply pipe, 31... ...Thermostat, A...heating medium.

Claims

[Scope of utility model registration request]

a boiler body; a heat exchanger that is connected to the exhaust pipe of the boiler body and has a water coil inside that contacts a heat medium; and a preheating water supply tank for supplying water to the heat exchanger and the boiler body. , a water supply pump installed in the middle of a low temperature water supply pipe connected between the low temperature side of the preheated water supply tank and the water flow coil inlet of the heat exchanger, and a water supply pump that is heated by the heat exchanger. In order to supply high temperature water to the preheating water supply tank side, a high temperature water return pipe is connected between the water flow coil outlet of the heat exchanger and the high temperature side of the preheating water supply tank, and the high temperature water return pipe is connected to the high temperature water return pipe. In order to supply the high temperature water supplied in the preheating water supply tank to the boiler main body side, a high temperature water supply pipe connected between the high temperature side of the preheating water supply tank and the boiler main body, and a high temperature water supply pipe in the heat exchanger a temperature switch that stops the operation of the water supply pump when the temperature of the heating medium falls to a predetermined lower limit temperature, and starts the operation of the water supply pump when the temperature of the heating medium rises to a predetermined upper limit temperature; A waste heat utilization type boiler device consisting of.