Fireplace Flame-Extinguishing Method and Fireplace

Abstract

The present invention provides a fireplace flame-extinguishing method, including the following steps: S 1 : when a shutdown command is received, stopping a heating element from heating a liquid fuel in a vaporization chamber of a vaporization device; and S 2 : injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber of the vaporization device, to decrease a temperature of the liquid fuel in the vaporization chamber below the boiling point of the liquid fuel. According to the present invention, the liquid fuel having the temperature lower than the boiling point of the liquid fuel is injected into the vaporization chamber during a flame-extinguishing stage to quickly decrease the temperature of the liquid fuel in the vaporization chamber, reducing an amount of a vaporized fuel outputted to the burner, thereby realizing quick flame extinguishment. The present invention further provides a fireplace.

What is claimed is: 
     
         1 . A fireplace flame-extinguishing method, operating in a fireplace, characterized by comprising the following steps:
 S 1 : when a shutdown command is received, stopping a heating element ( 103 ) from heating a liquid fuel in a vaporization chamber ( 101 ) of a vaporization device ( 1 ); and   S 2 : injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease a temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel.   
     
     
         2 . The fireplace flame-extinguishing method according to  claim 1 , characterized in that step S 2  comprises:
 S 21 A: determining whether a time t 1  has passed; if yes, executing S 22 A; if no, waiting and executing S 21 A; and 
 S 22 A: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease a temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel; 
 or step S 2  comprises: 
 S 21 B: determining whether a temperature of the burner ( 2 ), the heating element ( 103 ), or the liquid fuel in the vaporization chamber ( 101 ) has been decreased to a first preset temperature; if yes, executing S 22 B; if no, waiting and executing S 21 B; and 
 S 22 B: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease a temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel; 
 or step S 2  comprises: 
 S 21 C: determining whether a time t 2  has passed; if yes, executing S 22 C; if no, waiting and executing S 21 C; 
 S 22 C: determining whether a temperature of a burner ( 2 ), the heating element ( 103 ), or the liquid fuel in the vaporization chamber ( 101 ) has been decreased to a second preset temperature; if yes, executing S 23 C; if no, waiting and executing S 22 C; and 
 S 23 C: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease a temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel; 
 or step S 2  comprises: 
 S 21 D: determining whether, upon injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ), a maximum heat absorption capacity of the liquid fuel injected into the vaporization chamber ( 101 ) is greater than heat required to be released for decreasing the temperature of the liquid fuel in the current vaporization chamber ( 101 ) below its boiling point; if yes, executing S 22 D; if no, waiting and executing S 21 D; and 
 S 22 D: injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease the temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel. 
 
     
     
         3 . The fireplace flame-extinguishing method according to  claim 2 , characterized in that, in step S 21 D, the step of acquiring, upon injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ), a maximum heat absorption capacity of the liquid fuel injected into the vaporization chamber ( 101 ) comprises:
 S 21 D-A 1 : acquiring a maximum capacity of the liquid fuel capable of being injected into the vaporization chamber ( 101 ) and a temperature of the liquid fuel to be injected into the vaporization chamber ( 101 ); and   S 21 D-A 2 : obtaining, upon injecting a liquid fuel having a temperature lower than the boiling point of the liquid fuel into the vaporization chamber ( 101 ), a maximum heat absorption capacity of the liquid fuel injected into the vaporization chamber ( 101 ), based on the maximum capacity of the liquid fuel capable of being injected into the vaporization chamber ( 101 ) and the temperature of the liquid fuel to be injected into the vaporization chamber ( 101 ); and   in step S 21 D, the step of acquiring the heat required to be released for decreasing the temperature of the liquid fuel in the current vaporization chamber ( 101 ) below its boiling point comprises:   S 21 D-B 1 : acquiring a temperature of the liquid fuel in the current vaporization chamber ( 101 ) and a capacity of the liquid fuel in the current vaporization chamber ( 101 ); and   S 21 D-B 2 : acquiring the heat required to be released for decreasing the temperature of the liquid fuel in the current vaporization chamber ( 101 ) below its boiling point, based on the temperature of the liquid fuel in the current vaporization chamber ( 101 ) and the capacity of the liquid fuel in the current vaporization chamber ( 101 );   wherein in step S 21 D-A 1 , the step of acquiring a maximum capacity C 1  of the liquid fuel capable of being injected into the vaporization chamber ( 101 ) comprises:   S 21 D-A 11 : acquiring a current capacity C 1  of the liquid fuel in the vaporization chamber ( 101 ) and a maximum capacity C 2  of the liquid fuel capable of being accommodated in the vaporization chamber ( 101 ); and   S 21 D-A 12 : obtaining a maximum capacity C 3  of the liquid fuel capable of being injected into the vaporization chamber ( 101 ) currently based on the current capacity C 1  of the liquid fuel in the vaporization chamber ( 101 ) and the maximum capacity C 2  of the liquid fuel capable of being accommodated in the vaporization chamber ( 101 ), wherein   
       
         
           
           
               
               
           
         
         in step S 2 , a stage of injecting the liquid fuel into the vaporization chamber ( 101 ) refers to injecting the liquid fuel into the vaporization chamber ( 101 ) until a maximum capacity of the vaporization chamber ( 101 ) is reached. 
       
     
     
         4 . The fireplace flame-extinguishing method according to  claim 2 , characterized in that a value of the time t 1  in step S 21 A is any one from 20 seconds to 180 seconds; and a value of the time t 2  in step S 21 C is any one from 20 seconds to 180 seconds. 
     
     
         5 . The fireplace flame-extinguishing method according to  claim 1 , characterized in that, in step S 1 , after the heating element ( 103 ) stops heating the liquid fuel in the vaporization chamber ( 101 ), a first heat dissipation device ( 7 ) is started immediately or after waiting for a time t 3  to dissipate heat from the vaporization chamber ( 101 ). 
     
     
         6 . The fireplace flame-extinguishing method according to  claim 1 , characterized by comprising:
 S 3 : determining whether the temperature of the liquid fuel in the vaporization chamber ( 101 ) of the vaporization device ( 1 ) has been decreased to a third preset temperature; if yes, executing S 4 ; if no, waiting and executing S 3 ; and   S 4 : extracting and delivering the liquid fuel in the vaporization device ( 1 ) back to a liquid storage device ( 3 ) until a liquid level of the liquid fuel in the vaporization chamber ( 101 ) reaches a preset safe level or falls below the preset safe level.   
     
     
         7 . The fireplace flame-extinguishing method according to  claim 6 , characterized in that, in step S 3 , during the waiting process, a second heat dissipation device ( 12 ) is started to dissipate heat from the vaporization chamber ( 101 );
 in step S 2 , the liquid fuel injected into the vaporization chamber ( 101 ) originates from the liquid storage device ( 3 );   the liquid storage device ( 3 ) delivers the liquid fuel to the vaporization device ( 1 ) via a liquid supply device ( 4 ), and the liquid storage device ( 3 ) extracts the liquid fuel from the vaporization device ( 1 ) via a liquid return device ( 8 );   the liquid supply device ( 4 ) has a one-way cutoff function for preventing the liquid fuel in the vaporization device ( 1 ) from flowing back to the liquid storage device ( 3 ), and the liquid return device ( 8 ) has a one-way cutoff function for preventing the liquid fuel in the liquid storage device ( 3 ) from flowing back to the vaporization device ( 1 );   the liquid supply device ( 4 ) is capable of delivering the liquid fuel in the liquid storage device ( 3 ) to the vaporization device ( 1 ) at a stable flow rate, and the flow rate at which the liquid supply device ( 4 ) delivers the liquid fuel is adjustable within a range; and   in step S 2 , during the process of injecting the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), the liquid fuel is injected into the vaporization chamber ( 101 ) at a maximum achievable injection speed for injecting the liquid fuel into the vaporization chamber ( 101 ).   
     
     
         8 . The fireplace flame-extinguishing method according to  claim 1 , characterized in that the vaporization chamber ( 101 ) of the vaporization device ( 1 ) comprises a first injection port ( 1011 ) for injecting the liquid fuel into the vaporization chamber ( 101 );
 the first injection port ( 1011 ) is located at a bottom of the vaporization chamber ( 101 ) or on a side wall close to the bottom;   the vaporization device ( 1 ) comprises a liquid level control chamber ( 102 ); the liquid level control chamber ( 102 ) comprises a second injection port ( 1021 ) for injecting the liquid fuel into the liquid level control chamber ( 102 ), and a liquid fuel outlet ( 1022 ) for outputting the liquid fuel in the liquid level control chamber ( 102 ); the liquid fuel outlet ( 1022 ) is in communication with the first injection port ( 1011 ); the liquid fuel outlet ( 1022 ) is located at a bottom of the liquid level control chamber ( 102 ) or on a side wall close to the bottom; and the second injection port ( 1021 ) is located at the bottom of the liquid level control chamber ( 102 ) or on the side wall close to the bottom;   in step S 2 , the liquid fuel is injected into the liquid level control chamber ( 102 ) via the second injection port ( 1021 ), and the liquid fuel in the liquid level control chamber ( 102 ) is injected into the vaporization chamber ( 101 ) through the liquid fuel outlet ( 1022 ) and the first injection port ( 1011 ) that are in communication with each other;   the liquid fuel injected into the vaporization chamber ( 101 ) of the vaporization device ( 1 ) is a liquid fuel at room temperature; and   the fireplace is an alcohol fireplace, and accordingly, the liquid fuel is alcohol.   
     
     
         9 . A fireplace, comprising:
 a burner ( 2 ), configured to combust a liquid fuel after the liquid fuel is vaporized;   a vaporization device ( 1 ), provided with a vaporization chamber ( 101 ), wherein the vaporization chamber ( 101 ) is connected to the burner ( 2 ), and the vaporization device ( 1 ) is configured to vaporize the liquid fuel in the vaporization chamber ( 101 ) and deliver the vaporized liquid fuel to the burner ( 2 ) for combustion;   a liquid storage device ( 3 ), configured to store the liquid fuel;   a liquid supply device ( 4 ), connecting the liquid storage device ( 3 ) and the vaporization device ( 1 ) to deliver the liquid fuel in the liquid storage device ( 3 ) to the vaporization chamber ( 101 ) of the vaporization device ( 1 ); and   a control device ( 5 ), connected to the liquid supply device ( 4 ), and configured to, during a normal operating stage of the fireplace, control the liquid supply device ( 4 ) to operate so as to deliver the liquid fuel in the liquid storage device ( 3 ) to the vaporization chamber ( 101 ) of the vaporization device ( 1 ), as well as configured to, during a flame-extinguishing stage of the fireplace, control the liquid supply device ( 4 ) to operate so as to deliver the liquid fuel in the liquid storage device ( 3 ) to the vaporization chamber ( 101 ) of the vaporization device ( 1 ).   
     
     
         10 . The fireplace according to  claim 9 , wherein:
 the vaporization device ( 1 ) comprises a heating element ( 103 ) for heating the liquid fuel in the vaporization chamber ( 101 ), the control device ( 5 ) is connected to the heating element ( 103 ) so as to control an operating state of the heating element ( 103 );   the vaporization device ( 1 ) comprises a liquid level control chamber ( 102 );   the vaporization chamber ( 101 ) comprises a first injection port ( 1011 ) for injecting the liquid fuel into the vaporization chamber ( 101 );   the liquid level control chamber ( 102 ) comprises a second injection port ( 1021 ) for injecting the liquid fuel into the liquid level control chamber ( 102 ), and a liquid fuel outlet ( 1022 ) for outputting the liquid fuel in the liquid level control chamber ( 102 );   the liquid fuel outlet ( 1022 ) is in communication with the first injection port ( 1011 );   the liquid supply device ( 4 ) is connected to the second injection port ( 1021 ) of the liquid level control chamber ( 102 );   the first injection port ( 1011 ) is located at a bottom of the vaporization chamber ( 101 ) or on a side wall close to the bottom of the vaporization chamber ( 101 );   the liquid fuel outlet ( 1022 ) is located at a bottom of the liquid level control chamber ( 102 ) or on a side wall close to the bottom of the liquid level control chamber ( 102 );   the second injection port ( 1021 ) is located at the bottom of the liquid level control chamber ( 102 ) or on the side wall close to the bottom of the liquid level control chamber ( 102 );   the fireplace comprises a liquid fuel amount detection structure ( 6 ) for detecting an amount of the liquid fuel in the vaporization chamber ( 101 ), and the control device ( 5 ) is connected to the liquid fuel amount detection structure ( 6 ) to acquire the amount of the liquid fuel in the vaporization chamber ( 101 );   the liquid fuel amount detection structure ( 6 ) is a liquid level detection structure comprising a low liquid level detection probe ( 601 ), a medium liquid level detection probe ( 602 ), and a high liquid level detection probe ( 603 ), wherein the low liquid level detection probe ( 601 ) is closer to a bottom surface of the vaporization chamber ( 101 ) than the medium liquid level detection probe ( 602 ), wherein the medium liquid level detection probe ( 602 ) is closer to the bottom surface of the vaporization chamber ( 101 ) than the high liquid level detection probe ( 603 );   the liquid fuel amount detection structure ( 6 ) comprises a safe liquid level detection probe ( 604 );   the heating element ( 103 ) is close to the bottom surface of the vaporization chamber ( 101 );   the low liquid level detection probe ( 601 ) is positioned higher than a side of the heating element ( 103 ) away from the bottom surface of the vaporization chamber ( 101 );   the safe liquid level detection probe ( 604 ) is positioned at a height near the heating element ( 103 );   the safe liquid level detection probe ( 604 ) is closer to the bottom surface of the vaporization chamber ( 101 ) than the low liquid level detection probe ( 601 );   the liquid fuel amount detection structure ( 6 ) is disposed in the liquid level control chamber ( 102 );   the fireplace comprises a first heat dissipation device ( 7 ) for dissipating heat from the vaporization chamber ( 101 ), the first heat dissipation device ( 7 ) employs air for heat dissipation, wherein an air outlet of the first heat dissipation device ( 7 ) is disposed toward the vaporization chamber ( 101 ), and the first heat dissipation device ( 7 ) is disposed below the vaporization chamber ( 101 );   the fireplace comprises a liquid return device ( 8 ), the liquid return device ( 8 ) connects the liquid storage device ( 3 ) and the vaporization device ( 1 ) to deliver the liquid fuel in the vaporization device ( 1 ) to the liquid storage device ( 3 );   the control device ( 5 ) is connected to the liquid return device ( 8 ), and during the flame-extinguishing stage of the fireplace, controls the liquid return device ( 8 ) to operate when a temperature of the liquid fuel in the vaporization chamber ( 101 ) falls below a preset value, so as to deliver the liquid fuel in the vaporization device ( 1 ) to the liquid storage device ( 3 );   the liquid supply device ( 4 ) has a one-way cutoff function for preventing the liquid fuel in the vaporization device ( 1 ) from flowing back to the liquid storage device ( 3 ), and the liquid return device ( 8 ) has a one-way cutoff function for preventing the liquid fuel in the liquid storage device ( 3 ) from flowing back to the vaporization device ( 1 );   the fireplace comprises a first temperature sensor ( 9 ) for detecting the temperature of the liquid fuel in the vaporization chamber ( 101 ), and a second temperature sensor ( 10 ) for detecting a temperature of the burner ( 2 ), wherein the first temperature sensor ( 9 ) and the second temperature sensor ( 10 ) are connected to the control device ( 5 ); and   the fireplace comprises a housing ( 11 ), and a second heat dissipation device ( 12 ) for dissipating heat from an interior of the housing ( 11 ), wherein the vaporization device ( 1 ), the liquid supply device ( 4 ), the control device ( 5 ), and the liquid return device ( 8 ) are disposed within the housing ( 11 ), wherein the liquid storage device ( 3 ) is inside the housing ( 11 ) or externally mounted, wherein a flame outlet, a part with a flame outlet, or the entirety of the burner ( 2 ) is exposed outside the housing ( 11 ), wherein the second heat dissipation device ( 12 ) employs air for heat dissipation, wherein an air outlet of the second heat dissipation device ( 12 ) is disposed toward the interior of the housing ( 11 ), wherein the second heat dissipation device ( 12 ) is disposed on a side wall of the housing ( 11 ).   
     
     
         11 . The fireplace according to  claim 9 , wherein the control device ( 5 ) is configured to control the fireplace during the flame-extinguishing stage by:
 based on receipt of a shutdown command, stopping a heating element ( 103 ) from heating the liquid fuel in a vaporization chamber ( 101 ) of the vaporization device ( 1 ); and   injecting a liquid fuel having a temperature lower than a boiling point of the liquid fuel into the vaporization chamber ( 101 ) of the vaporization device ( 1 ), to decrease a temperature of the liquid fuel in the vaporization chamber ( 101 ) below the boiling point of the liquid fuel.   
     
     
         12 . The fireplace according to  claim 9 , wherein the fireplace is an alcohol fireplace, and accordingly, the liquid fuel is alcohol.