Fracturing Device, Engine and Exhaust Apparatus Thereof

Abstract

This application discloses a fracturing device, an engine and an exhaust apparatus thereof, which belongs to the field of turbine fracturing technologies. The engine is provided with a first exhaust outlet, and the exhaust apparatus of the engine includes an exhaust muffler, a shroud plate and a cover plate, where the exhaust muffler is provided at a first exhaust outlet, the exhaust muffler is provided with a second exhaust outlet, and the shroud plate is provided at the second exhaust outlet, the shroud plate is movably connected to the exhaust muffler, the shroud plate can move between a first position and a second position relative to the exhaust muffler, and the cover plate is rotationally connected to the exhaust muffler to close or open the second exhaust outlet. In a case that the shroud plate moves to the first position relative to the exhaust muffler and the cover plate opens the second exhaust outlet, the shroud plate and cover plate form a heightening tube. The heightening tube communicates with the second exhaust outlet, and the position of an upper port of the heightening tube is higher than the position of the second exhaust outlet. The engine includes the exhaust apparatus mentioned above, and the fracturing device includes the engine mentioned above. As such, reducing the number of components is facilitated, and the structure is simplified.

1 . An exhaust apparatus of an engine, the engine being provided with a first exhaust outlet, wherein the exhaust apparatus comprises an exhaust muffler, a shroud plate and a cover plate, wherein:
 the exhaust muffler is provided at the first exhaust outlet, and the exhaust muffler is provided with a second exhaust outlet, the shroud plate is provided at the second exhaust outlet, and the shroud plate is movably connected to the exhaust muffler, the shroud plate is movable between a first position and a second position relative to the exhaust muffler, and the cover plate is movably connected to the shroud plate or the exhaust muffler to close or open the second exhaust outlet; and   when the shroud plate moves to the first position relative to the exhaust muffler and the cover plate opens the second exhaust outlet, the shroud plate and the cover plate forming a heightening tube, the heightening tube communicating with the second exhaust outlet, and an upper port of the heightening tube being positionally higher than the second exhaust outlet.   
     
     
         2 . The exhaust apparatus according to  claim 1 , wherein the cover plate is rotationally connected to the exhaust muffler to close or open the second exhaust outlet. 
     
     
         3 . The exhaust apparatus according to  claim 2 , wherein:
 the cover plate is movably connected to the shroud plate, and when the shroud plate moves, the cover plate is driven to rotate relative to the second exhaust outlet;   when the shroud plate moves to the first position relative to the exhaust muffler, the cover plate opens the second exhaust outlet; and   when the shroud plate moves relative to the exhaust muffler to the second position, the cover plate closes the second exhaust outlet.   
     
     
         4 . The exhaust apparatus according to  claim 3 , wherein the shroud plate is connected to the exhaust muffler in a sliding manner. 
     
     
         5 . The exhaust apparatus according to  claim 4 , wherein the shroud plate is configured to sleeve over a duct of the exhaust muffler as it moves relative to the exhaust muffler. 
     
     
         6 . The exhaust apparatus according to  claim 5 , wherein:
 the exhaust apparatus further comprises at least one connecting rod, a first end of the at least one connecting rod being hinged with the cover plate, a second end of the at least one connecting rod being hinged with the shroud plate; and   when the shroud plate slides relative to the exhaust muffler, the cover plate is driven by the at least one connecting rod to rotate relative to the second exhaust outlet.   
     
     
         7 . The exhaust apparatus according to  claim 6 , wherein:
 the shroud plate is a bent plate comprising a first enclosure portion, a second enclosure portion, and a third enclosure portion,   the first enclosure portion, the second enclosure portion, the third enclosure portion, and the cover plate form four sides of the the heightening tube;   side edges of the cover plate comprise a left side edge and a right-side edge;   a number of the at least one connecting rod is at least two;   the first ends of two of the at least one connecting rod are hinged with the left side edge and the right-side edge; and   the second ends of the two of the at least one connecting rods are hinged with frames of the first enclosure portion and the third enclosure portion.   
     
     
         8 . The exhaust apparatus according to  claim 1 , wherein:
 the exhaust apparatus further comprises a limit sensor and an induction piece, one of the limit sensor and the induction piece being provided on the exhaust muffler, and the other one of the limit sensor and the induction piece being provided on the cover plate, and   when the limit sensor detects that the induction piece moves to a preset position relative to the limit sensor, the engine is controlled to stop operation and/or the exhaust muffler is controlled to generate an alarm signal.   
     
     
         9 . The exhaust apparatus according to  claim 1 , wherein:
 the exhaust apparatus further comprises a guide mechanism, the guide mechanism comprising a guide rail and a sliding piece, one of the guide rail and the sliding piece being provided on the exhaust muffler, the other one of the guide rail and the sliding piece being provided on the shroud plate, and the guide rail being in sliding fit with the sliding piece; and   a number of the guide mechanisms is at least two, and at least two of the guide mechanisms are provided on opposite sides of the exhaust muffler.   
     
     
         10 . The exhaust apparatus according to  claim 1 , wherein the exhaust apparatus further comprises a drive mechanism, and the drive mechanism is connected to the shroud plate to drive the shroud plate to move relative to the exhaust muffler. 
     
     
         11 . An engine, comprising the exhaust apparatus according to  claim 1 . 
     
     
         12 . A fracturing device, comprising the engine and the exhaust apparatus of  claim 1 .