Heat-storage type heat supplying apparatus and heat-storage type heat supplying system

Abstract

Provided is a heat-storage type heat supplying apparatus capable of supplying a fixed amount of heat-exchange medium to a heat-removing device, by which the heat-removing device is operated efficiently. The heat-storage type heat supplying apparatus has a heat-storage tank that houses erythritol, which stores heat depending on a state change between solid and liquid, and oil that performs heat exchange by contacting the erythritol, has a smaller specific gravity than that of the erythritol, and is separated from the erythritol, in an internal space, takes in the oil in a lower portion of the internal space, and discharges the oil from an upper portion of the internal space. Then, the apparatus has a discharge tube 6 and an intake tube, which supply the oil discharged from the heat-storage tank to a heat exchanger, and a supply tube and a removing tube, which supply the oil, from which heat has been removed in the heat exchanger, to the heat-storage tank. Further, the apparatus has a flow rate meter that detects the flow rate of the oil flowing in the discharge tube, and a pump that is provided on the discharge tube and controls the flow rate of the oil flowing in the discharge tube based on a detection result from a flow rate control section.

1 . A heat-storage type heat supplying apparatus where stored heat is supplied to a heat-exchange medium and said heat-exchange medium is supplied to a heat-removing device that takes out heat from said heat-exchange medium to which heat has been supplied, said apparatus comprising: 
 a heat-storage tank that houses a heat storage, which stores heat depending on a state change between solid and liquid, and a heat-exchange medium that performs heat exchange by contacting said heat storage, has a smaller specific gravity than that of said heat storage, and is separated from said heat storage, in an internal space, takes in said heat-exchange medium in a lower portion of said internal space, and discharges said heat-exchange medium from an upper portion of said internal space;    a first supply tube that supplies the heat-exchange medium discharged from said heat-storage tank to said heat-removing device;    a second supply tube that supplies the heat-exchange medium, from which heat has been removed in said heat-removing device, to said heat-storage tank;    a flow rate detector that detects the flow rate of the heat-exchange medium flowing in said first supply tube; and    a first flow rate control section that is provided on said first supply tube and controls the flow rate of the heat-exchange medium flowing in said first supply tube based on a detection result from said flow rate detector.    
   
   
       2 . The heat-storage type heat supplying apparatus according to  claim 1 , wherein 
 under a condition after a state of said heat storage is changed to solid and paths for flowing said heat-exchange medium are formed in the heat storage, said apparatus further comprising:    a second flow rate control section that controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said heat-removing device by switching the case of stopping the flow of said heat-exchange medium in said first supply tube and the case of allowing said heat-exchange medium to flow in said first supply tube.    
   
   
       3 . The heat-storage type heat supplying apparatus according to  claim 1 , said apparatus comprising: 
 a third supply tube that supplies the heat-exchange medium flowing in said first supply tube directly to said second supply tube; and    a third flow rate control section that controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device by controlling the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube.    
   
   
       4 . The heat-storage type heat supplying apparatus according to  claim 3 , wherein 
 said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said heat-removing device by switching the case of stopping the supply of said heat-exchange medium from said first supply tube to said heat-removing device and supplying the medium to said third supply tube and the case of stopping the supply of said heat-exchange medium from said first supply tube to said third supply tube and supplying the medium to said heat-removing device.    
   
   
       5 . The heat-storage type heat supplying apparatus according to  claim 3 , said apparatus further comprising: 
 a first heat quantity detector that detects a first thermal parameter being a state variable regarding a heat quantity taken out from said heat-exchange medium by said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said first heat quantity detector.    
   
   
       6 . The heat-storage type heat supplying apparatus according to  claim 3 , said apparatus further comprising: 
 a second heat quantity detector that detects the second thermal parameter being a state variable regarding a heat quantity of said heat-exchange medium to be supplied to said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said second heat quantity detector.    
   
   
       7 . A heat-storage type heat supplying system, comprising: 
 the heat-storage type heat supplying apparatus comprising a third supply tube that supplies the heat-exchange medium flowing in said first supply tube directly to said second supply tube; a third flow rate control section that controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device by controlling the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube, and a first heat quantity detector that detects a first thermal parameter being a state variable regarding a heat quantity taken out from said heat-exchange medium by said heat-removing device, wherein said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said first heat quantity detector; and    an absorption type water cooler/heater that makes cold water by utilizing vaporization heat of water;    said heat-removing device that supplies heat taken out from said heat-exchange medium, to which heat has been supplied, to said water utilized in said absorption type water cooler/heater;    a first water supply tube that supplies said water from said absorption type water cooler/heater to said heat-removing device; and    a second water supply tube that supplies said water to which heat has been supplied, from said heat-removing device to said absorption type water cooler/heater and has said first heat quantity detector that detects the temperature of said water to which heat has been supplied, as said first thermal parameter, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device such that a temperature of said water, which is detected by said first heat quantity detector, becomes 70° C. or higher and 100° C. or lower.    
   
   
       8 . A heat-storage type heat supplying system, comprising: 
 the heat-storage type heat supplying apparatus comprising a third supply tube that supplies the heat-exchange medium flowing in said first supply tube directly to said second supply tube; a third flow rate control section that controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device by controlling the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube, and a second heat quantity detector that detects the second thermal parameter being a state variable regarding a heat quantity of said heat-exchange medium to be supplied to said heat-removing device, wherein said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said second heat quantity detector, and    said heat-removing device, wherein    said heat-removing device is an absorption type water cooler/heater that supplies heat taken out from said heat-exchange medium, to which heat has been supplied, to water and makes cold water by utilizing the vaporization heat of said water.    
   
   
       9 . The heat-storage type heat supplying apparatus according to  claim 2 , said apparatus comprising: 
 a third supply tube that supplies the heat-exchange medium flowing in said first supply tube directly to said second supply tube; and    a third flow rate control section that controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device by controlling the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube.    
   
   
       10 . The heat-storage type heat supplying apparatus according to  claim 9 , wherein 
 said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said heat-removing device by switching the case of stopping the supply of said heat-exchange medium from said first supply tube to said heat-removing device and supplying the medium to said third supply tube and the case of stopping the supply of said heat-exchange medium from said first supply tube to said third supply tube and supplying the medium to said heat-removing device.    
   
   
       11 . The heat-storage type heat supplying apparatus according to  claim 9 , said apparatus further comprising: 
 a first heat quantity detector that detects a first thermal parameter being a state variable regarding a heat quantity taken out from said heat-exchange medium by said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said first heat quantity detector.    
   
   
       12 . The heat-storage type heat supplying apparatus according to  claim 4 , said apparatus further comprising: 
 a first heat quantity detector that detects a first thermal parameter being a state variable regarding a heat quantity taken out from said heat-exchange medium by said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said first heat quantity detector.    
   
   
       13 . The heat-storage type heat supplying apparatus according to  claim 10 , said apparatus further comprising: 
 a first heat quantity detector that detects a first thermal parameter being a state variable regarding a heat quantity taken out from said heat-exchange medium by said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said first heat quantity detector.    
   
   
       14 . The heat-storage type heat supplying apparatus according to  claim 9 , said apparatus further comprising: 
 a second heat quantity detector that detects the second thermal parameter being a state variable regarding a heat quantity of said heat-exchange medium to be supplied to said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said second heat quantity detector.    
   
   
       15 . The heat-storage type heat supplying apparatus according to  claim 4 , said apparatus further comprising: 
 a second heat quantity detector that detects the second thermal parameter being a state variable regarding a heat quantity of said heat-exchange medium to be supplied to said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said second heat quantity detector.    
   
   
       16 . The heat-storage type heat supplying apparatus according to  claim 10 , said apparatus further comprising: 
 a second heat quantity detector that detects the second thermal parameter being a state variable regarding a heat quantity of said heat-exchange medium to be supplied to said heat-removing device, wherein    said third flow rate control section controls the flow rate of said heat-exchange medium to be supplied from said first supply tube to said third supply tube and controls the flow rate of the heat-exchange medium to be supplied from said first supply tube to said heat-removing device based on a detection result of said second heat quantity detector.