Heat recovery type heat storage apparatus

Abstract

The invention provides a heat recovery type heat storage apparatus which makes an apparatus small-sized and compact and has a high reliability and an improved efficiency. In a heat recovery type heat storage apparatus transferring an exhaust heat contained in an exhaust gas supplied from a heat discharge apparatus so as to accumulate heat, there are provided a heat exchanger provided within an exhaust duct for discharging the exhaust gas, a compression gas source connected to the heat exchanger via an inlet pipe, and an injection portion provided at an end portion of an outlet pipe of the heat exchanger and inserted within a liquid received within a tank, and a gas is introduced to the heat exchanger from the compression gas source so as to be blown within the liquid from the injection portion.

What is claimed is:  
     
         1 . A heat recovery type heat storage apparatus transferring an exhaust heat contained in an exhaust gas supplied from a heat discharge apparatus so as to accumulate heat, comprising: 
 a heat exchanger provided within an exhaust duct for discharging said exhaust gas;    a compression gas source connected to said heat exchanger via an inlet pipe; and    an injection portion provided at an end portion of an outlet pipe of said heat exchanger and inserted within a liquid received within a tank,    wherein a gas is introduced to said heat exchanger from said compression gas source so as to be blown within said liquid from said injection portion.    
     
     
         2 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein a nozzle having a small hole is provided in said injection portion.  
     
     
         3 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein a negative pressure portion is provided by a stream of the gas passing through said injection portion, and a suction pipe is provided in said negative pressure portion.  
     
     
         4 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein an inner wall having a lower hole and an upper hole is provided inside said tank, and the gas injected out from the injection portion is introduced to the liquid between the wall of said tank and said inner wall.  
     
     
         5 . A heat recovery type heat storage apparatus accumulating heat by utilizing a heat within an exhaust duct, comprising: 
 a heat exchanger provided within said exhaust duct;    a compression gas source connected to said heat exchanger via an inlet pipe; and    an injection portion provided at an end portion of an outlet pipe of said heat exchanger and provided near an upper portion of a liquid received within a tank,    wherein a gas is introduced to said heat exchanger from said compression gas source and said gas injected out from said injection portion is blown to said liquid.    
     
     
         6 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein the liquid is agitated by driving an agitator provided in said liquid due to a compression air supplied from said compression gas source.  
     
     
         7 . A heat recovery type heat storage apparatus as claimed in  claim 5 , wherein the liquid is agitated by driving an agitator provided in said liquid due to a compression air supplied from said compression gas source.  
     
     
         8 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein the compression gas supplied from said compression gas source is an overheated vapor a gas containing or mists or a vapor.  
     
     
         9 . A heat recovery type heat storage apparatus as claimed in  claim 5 , wherein the compression gas supplied from said compression gas source is an overheated vapor or a gas containing mists or a vapor.  
     
     
         10 . A heat recovery type heat storage apparatus utilizing an exhaust heat contained in an exhaust gas, wherein a heat exchanger is provided within an exhaust duct discharging said exhaust gas, a gas is introduced to said heat exchanger so as to be temperature increased, and a heat of the gas increased temperature is accumulated so as to be supplied to a heat utilization equipment.  
     
     
         11 . A heat recovery type heat storage apparatus as claimed in  claim 1 , wherein said heat recovery heat exchanger is provided in an exhaust heat generating portion of a heat treatment furnace executing a heat treatment of a part.