Steam Box Having An Energy-Saving Function

Abstract

A steam box includes a container having an inner portion provided with a receiving chamber which has a bottom provided with a water tank. The container has a lower portion provided with a receiving space located under the water tank to receive a burner. The container is provided with an inner water storage conduit, an outer water storage conduit and an air draining channel located between the inner water storage conduit and the outer water storage conduit. Thus, waste air produced by the burner during the heating process is disposed at a higher temperature and can be reused to heat the water in the inner water storage conduit and the outer water storage conduit and to increase the temperature of the water in the water tank so as to shorten the heating time of the steam box.

1 . A steam box, comprising:
 a container having an inner portion provided with a hollow receiving chamber;   the receiving chamber of the container having a bottom provided with a water tank connected to the receiving chamber;   the container having a lower portion provided with a receiving space located under the water tank to receive a burner;   the water tank having a bottom provided with a receiving recess located above the burner and a water storage channel connected to the water tank.   
   
   
       2 . The steam box of  claim 1 , wherein
 the container is provided with an inner water storage conduit and an outer water storage conduit;   the container is provided with an air draining channel located between the inner water storage conduit and the outer water storage conduit;   the air draining channel of the container has a bottom connected to the receiving space and the receiving recess.   
   
   
       3 . The steam box of  claim 1 , wherein the water storage channel extends downward from two opposite sides and a front side of the water tank. 
   
   
       4 . The steam box of  claim 3 , wherein the water storage channel has a substantially U-shaped profile. 
   
   
       5 . The steam box of  claim 2 , wherein the container has a top wall having a surface provided with a plurality of steam outlet holes each connected to the receiving chamber. 
   
   
       6 . The steam box of  claim 2 , wherein the inner water storage conduit of the container is connected to the outer water storage conduit. 
   
   
       7 . The steam box of  claim 2 , wherein the bottom of the air draining channel is provided with a guide ramp facing the burner. 
   
   
       8 . The steam box of  claim 1 , wherein the receiving recess of the water tank is connected to the receiving space. 
   
   
       9 . The steam box of  claim 2 , wherein the inner water storage conduit and the outer water storage conduit are located between the receiving chamber and a rear wall of the container. 
   
   
       10 . The steam box of  claim 5 , wherein the air draining channel of the container has a top provided with an elongate air draining port exposed outwardly from the top wall of the container. 
   
   
       11 . The steam box of  claim 1 , wherein the receiving recess of the water tank is encompassed by the water storage channel. 
   
   
       12 . The steam box of  claim 1 , wherein the water storage channel extends downward from two sidewalls and a front wall of the container. 
   
   
       13 . The steam box of  claim 2 , wherein the inner water storage conduit and the outer water storage conduit of the container form a loop to encompass the air draining channel completely. 
   
   
       14 . The steam box of  claim 6 , wherein
 the container is provided with a water inlet hole;   the outer water storage conduit of the container is connected to the water inlet hole of the container.   
   
   
       15 . The steam box of  claim 14 , wherein the container is provided with a passage located and connected between the receiving chamber and the inner water storage conduit. 
   
   
       16 . The steam box of  claim 15 , wherein the passage of the container has a bottom connected to the water tank and has a top provided with an overflow hole connected to a top of the inner water storage conduit.