The invention relates to an inspection and repair module for an internal side wall of a vertically erected structure, with the module including a carrier for supporting at least one data recording mechanism and being securable to a hoist, and for an inspection and repair module for an internal wall of a conduit with the module including propulsion means comprising a set of driven tracked wheels controllable by a controller carried by the carrier and configured to provide, within a conduit, longitudinal forward and reverse motion.

The invention relates to an inspection and repair module for an internal side wall of a vertically erected structure, with the module including a carrier for supporting at least one data recording mechanism and being securable to a hoist, and for an inspection and repair module for an internal wall of a conduit with the module including propulsion means comprising a set of driven tracked wheels controllable by a controller carried by the carrier and configured to provide, within a conduit, longitudinal forward and reverse motion.

A fume exhaust assembly for a gas water heater. The fume exhaust assembly comprises a fume exhaust hood; the fume exhaust hood is provided with a fume exhaust pipe; the fume exhaust pipe and the fume exhaust hood are integrally formed. By means of integral formation, an assembly operation for the fume exhaust pipe and the fume exhaust hood is saved, an assembly procedure of a gas water heater product is simplified, and thus the production efficiency of the gas water heater product can be improved.

A heating apparatus for supplying heated air to a dryer for grain or other particulate materials. The apparatus features a biomass furnace with a burn chamber for combustible biomass material, a chimney having a lower end in fluid communication with the burn chamber interior, and air ducting that has a fresh air inlet, an output end connected or connectable to the dryer, and is in in fluid communication with the chimney to enable redirection of said heated exhaust air from the chimney to the dryer via the air ducting. An airflow control system is configured to both control airflow to the dryer through the air ducting, and control a temperature of said airflow by varying a ratio between the fresh ambient air and the heated exhaust air.

A heating apparatus for supplying heated air to a dryer for grain or other particulate materials. The apparatus features a biomass furnace with a burn chamber for combustible biomass material, a chimney having a lower end in fluid communication with the burn chamber interior, and air ducting that has a fresh air inlet, an output end connected or connectable to the dryer, and is in in fluid communication with the chimney to enable redirection of said heated exhaust air from the chimney to the dryer via the air ducting. An airflow control system is configured to both control airflow to the dryer through the air ducting, and control a temperature of said airflow by varying a ratio between the fresh ambient air and the heated exhaust air.

A smoke removal device includes a connecting tube, a burner, and a plurality of heat storage meshes. The connecting tube has an inlet end and an outlet end. The burner is disposed in the connecting tube and has a flame outlet. The heat storage meshes are sequentially disposed between the flame outlet and the outlet end. The heat storage meshes includes a first heat storage mesh and a second heat storage mesh. The first heat storage mesh is located between the second heat storage mesh and the flame outlet. A mesh-number of per unit area of the first heat storage mesh is larger than that of the second heat storage mesh. The first heat storage mesh and the second heat storage mesh could slow down a flow rate of flame to increase temperatures of the heat storage meshes. The smoke is burned off once touching the heat storage meshes.

A fume exhaust assembly for a gas water heater. The fume exhaust assembly comprises a fume exhaust hood; the fume exhaust hood is provided with a fume exhaust pipe; the fume exhaust pipe and the fume exhaust hood are integrally formed. By means of integral formation, an assembly operation for the fume exhaust pipe and the fume exhaust hood is saved, an assembly procedure of a gas water heater product is simplified, and thus the production efficiency of the gas water heater product can be improved.

A device for visually inspecting one or more internal side walls of a chimney to detect a defect or a deposit. The device includes a protective shell for containing a camera. The protective shell includes an observation bore and a light source bore, which are covered with a transparent shield. A cap is positioned above the protective shell and a positioning assembly is disposed on the cap to maintain a predetermined distance between the interior wall of the chimney and the protective shell. The positioning assembly includes at least three non-rigid rods that extend radially from the cap and are positioned equidistantly about the cap. A clamping mechanism is positioned beneath the housing for clamping to an elongated extension rod to enable controlled raising and lowering of the device within the chimney.

The present disclosure provides a cap and a water-heating device having the same. The cap for covering a top side of a case of the water-heating device includes a cover having a receiving space that is open at the bottom, the cover including an exhaust hole formed therein for releasing exhaust gas in the case to the outside, and an exhaust duct that is received in the receiving space and coupled to the cover and that forms an exhaust channel that connects an exhaust tube included in the case and the exhaust hole and releases the exhaust gas, in which the exhaust duct is formed of a material different from a material of the cover, and the material of the exhaust duct has higher heat resistance than the material of the cover.

The present disclosure provides a cap and a water-heating device having the same. The cap for covering a top side of a case of the water-heating device includes a cover having a receiving space that is open at the bottom, the cover including an exhaust hole formed therein for releasing exhaust gas in the case to the outside, and an exhaust duct that is received in the receiving space and coupled to the cover and that forms an exhaust channel that connects an exhaust tube included in the case and the exhaust hole and releases the exhaust gas, in which the exhaust duct is formed of a material different from a material of the cover, and the material of the exhaust duct has higher heat resistance than the material of the cover.