Cargo hold ventilation and silencing system

Abstract

The present invention discloses a cargo hold ventilation and silencing system, which relates to the technical field of ventilation and silencing of ship cargo holds, and comprises a ventilation and silencing mechanism, wherein the auxiliary mechanism comprises a shell, a first air vent, a second air vent, a first guide plate and a rectangular hole, a hollow plate is fixed inside the shell, a pulley is fixedly sleeved on the outer surface of the first rotating rod near the front surface position and the outer surface of the second rotating rod near the front surface position, and a second guide plate is fixed on the top of the inner wall of the hollow block near the air inlet end position. The present invention can increase the air outlet end of the first air inlet pipe in the ventilation and silencing system by arranging the auxiliary mechanism, thereby ensuring that the cargo hold ventilation and silencing system can quickly discharge harmful gases or odors accumulated in the cargo hold when ventilating the cargo hold, that is, the ventilation time of the cargo hold is reduced, the consumption of electric power resources is reduced, and both the use effect of the ventilation and silencing system and the use efficiency of the ventilation and silencing system are improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship cargo hold ventilation and silencing, in particular to a cargo hold ventilation and silencing system. Background Art

[0002] A ship's cargo hold is a compartment on a ship used to load cargo. However, in order to keep the air inside the hold fresh, prevent the cargo from getting damp, getting moldy or breeding bacteria, and to eliminate harmful gases or odors accumulated inside the hold and improve the environment inside the hold, the ship's cargo hold generally needs to be equipped with a ventilation and silencer system.

[0003] In the existing technology, the existing ventilation and silencing system for ship cargo holds can ensure the storage conditions inside the ship cargo hold and the quality of the cargo during actual use, but it does not have the function of increasing the air outlet volume of the fresh air inlet duct of the ventilation and silencing system, resulting in less fresh air entering the cargo hold when the cargo hold ventilation and silencing system is ventilating the cargo hold, that is, the harmful gases or odors accumulated in the cargo hold cannot be quickly discharged, which in turn causes the ventilation time of the cargo hold to become longer, increases the consumption of electricity resources, and reduces the use effect of the ventilation and silencing system, while also reducing the use efficiency of the ventilation and silencing system.

[0004] Therefore, we propose a cargo hold ventilation and silencing system to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a cargo hold ventilation and silencing system to solve the problem that the existing ship cargo hold ventilation and silencing system does not have the function of increasing the air outlet volume of the fresh air inlet duct of the ventilation and silencing system, resulting in less fresh air entering the environment inside the cargo hold when the cargo hold ventilation and silencing system ventilates the interior of the cargo hold, that is, the harmful gases or odors accumulated in the cargo hold cannot be quickly discharged, which in turn causes the ventilation time of the cargo hold to become longer, increases the consumption of electric power resources, and reduces the use effect of the ventilation and silencing system, while also reducing the use efficiency of the ventilation and silencing system.

[0006] To achieve the above object, the present invention provides the following technical solution: a cargo hold ventilation and silencing system, comprising a ventilation and silencing mechanism, wherein the ventilation and silencing mechanism is provided with an auxiliary mechanism;

[0007] The auxiliary mechanism includes a shell, a first air vent, a second air vent, a first guide plate and a rectangular hole. A hollow block is fixed on the top of the shell, a hollow plate is fixed inside the shell, the inside of the hollow plate is rotatably connected to a first rotating rod through a first bearing, a fan impeller is installed on the mounting end of the first rotating rod, a cylindrical hole is provided on the front surface of the inner wall of the hollow block and the rear surface of the inner wall of the hollow block, a second rotating rod is rotatably connected between the insides of the two cylindrical holes through a second bearing, a pulley is fixedly sleeved on the outer surface of the first rotating rod near the front surface position and the outer surface of the second rotating rod near the front surface position, two rectangular plates are equidistantly fixed on the outer surface of the second rotating rod, a guide shell is fixed on the air outlet end of the hollow block, and a second guide plate is fixed on the top of the inner wall of the hollow block near the air inlet end.

[0008] Preferably, the first air vent is opened on one side of the inner wall of the shell, the interior of the first air vent is connected to the interior of the second air vent, and the size of the first air vent is the same as the size of the second air vent, the two pulleys are connected by belt transmission, and the belt is movably sleeved inside the rectangular hole.

[0009] Preferably, the front surface of each of the rectangular plates is in contact with the front surface of the inner wall of the hollow block, and the rear surface of each of the rectangular plates is in contact with the rear surface of the inner wall of the hollow block, and the side of each of the rectangular plates away from the second rotating rod is an arc surface, wherein the arc surfaces of the two rectangular plates are in contact with the top of the inner wall of the hollow block and the bottom of the inner wall of the hollow block, respectively, the front surface of the second guide plate is fixed to the front surface of the inner wall of the hollow block, and the rear surface of the second guide plate is fixed to the rear surface of the inner wall of the hollow block.

[0010] Preferably, the ventilation and silencing mechanism includes a first pipe and a controller, an air heater is installed at the air inlet end of the first pipe, a first three-way pipe is installed at the air inlet end of the air heater, a second pipe is installed at one of the air inlet ends of the first three-way pipe, an air filter is installed at the air inlet end of the second pipe, a first air inlet pipe is installed at the air inlet end of the air filter, the first guide plate is fixed to the inner wall of the first air inlet pipe, and the first guide plate is at the outlet of the second vent, and one side of the shell is fixed to the outer wall of the first air inlet pipe.

[0011] Preferably, the second air vent is opened on the inner wall of the first air inlet pipe, the top of the shell and the top of the first air inlet pipe are on the same horizontal plane, the air inlet end of the first air inlet pipe is installed with a pipe cover, the inside of the pipe cover is installed with a first filter net, the other air inlet end of the first three-way pipe is installed with a connecting pipe, the air inlet end of the connecting pipe is installed with a second three-way pipe, and the air inlet end of the second three-way pipe is installed with a third pipe.

[0012] Preferably, a fourth pipe is installed at the outlet end of the second three-way pipe, and a fifth pipe is installed at the inlet end of the third pipe and the outlet end of the first pipe. Mounting seats are fixed inside the two fifth pipes, motors are installed on the surfaces of the two mounting seats, and fan blades are installed at the output ends of the two motors.

[0013] Preferably, the outer walls of the two fifth pipes are threaded with chucks, and the clamping ends of the two chucks are installed with fastening nuts, the air inlet end of one of the fifth pipes is installed with a second air inlet pipe, the air outlet end of the fourth pipe is installed with a first air outlet pipe, and the air outlet end of the other fifth pipe is installed with a second air outlet pipe.

[0014] Preferably, an impedance silencer is installed at the outlet end of the second outlet pipe, and a rectangular tube is installed at the outlet end of the impedance silencer. Vent covers are installed at the outlet end of the rectangular tube, the inlet end of the second inlet pipe and the outlet end of the first outlet pipe. A rectangular ring is fixedly sleeved on the inside of the rectangular tube near the outlet end, and a second filter is installed on the surface of the rectangular ring.

[0015] Preferably, the second filter net is movably sleeved inside the rectangular tube, the outer wall of the first three-way tube and the outer wall of the second three-way tube are both bonded with the first sound insulation cotton, the outer wall of the first three-way tube and the outer wall of the second three-way tube are both bonded with the second sound insulation cotton, and the surface of one of the first sound insulation cotton is in contact with the surface of one of the second sound insulation cotton.

[0016] Preferably, the surface of another first sound insulation cotton is in contact with the surface of another second sound insulation cotton, the inner wall of the second air inlet pipe on four sides near the air inlet end and the inner wall of the first air outlet pipe on four sides near the air outlet end are both bonded and connected with sound absorbing panels, the air heater is electrically connected to the controller, and the two motors are both electrically connected to the controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can increase the air volume at the outlet end of the first air inlet pipe in the ventilation and silencing system by arranging an auxiliary mechanism, thereby ensuring that the cargo hold ventilation and silencing system can quickly discharge harmful gases or odors accumulated in the cargo hold when ventilating the cargo hold, that is, reducing the ventilation time of the cargo hold, reducing the consumption of electric power resources, and improving the use effect of the ventilation and silencing system while also improving the use efficiency of the ventilation and silencing system. When the ship is traveling, with the cooperation of the flowing airflow, the hollow block, the two cylindrical holes, the second bearing, the four rectangular plates and the second guide plate, the second rotating rod can be kept rotating.

[0019] 2. The second rotating rod of the present invention that rotates subsequently will utilize the cooperation of two pulleys, belts, a first bearing, a shell, a hollow plate and a rectangular hole to realize that the fan impeller keeps rotating. At the same time, under the action of the guide shell, the airflow passing through the rectangular plate can be guided away. Then the rotating fan impeller will utilize the cooperation of the shell to draw fresh air from the environment into the interior of the shell. Thereafter, the cooperation of the first air vent, the second air vent and the first guide plate can be utilized to guide the fresh air entering the shell to the interior of the first air inlet pipe. At this time, the fresh air outlet at the outlet end of the first air inlet pipe is increased without consuming electrical energy.

[0020] 3. The present invention can ventilate the cargo hold by setting a ventilation and silencer mechanism. When the cargo hold needs to be ventilated, the gas inside the cargo hold can be extracted by first utilizing the cooperation of the controller, the motor inside the fifth pipe connected to the third pipe, the corresponding mounting seat, the corresponding fan blades, the fifth pipe, the second air inlet pipe and the corresponding vent cover. Subsequently, a part of the gas can be transported to the inside of the first three-way pipe by utilizing the cooperation of the second three-way pipe and the connecting pipe. At the same time, most of the gas can be discharged into the environment by utilizing the cooperation of the second three-way pipe, the fourth pipe, the first air outlet pipe and the corresponding vent cover.

[0021] 4. The present invention then utilizes the cooperation of the controller, the motor inside the fifth pipe connected to the first pipe, the corresponding mounting seat, the corresponding fan blades, the air heater, the first three-way pipe, the second pipe, the air filter and the corresponding fifth pipe to realize the suction and filtration of the fresh air in the environment, and then transport it to the inside of the second air outlet pipe. At the same time, a part of the gas transported from the connecting pipe to the inside of the first three-way pipe will also be transported to the inside of the second air outlet pipe together with the fresh air. Then, the second air outlet pipe, the impedance silencer, the rectangular tube, the second filter and the corresponding vent cover are used to guide the re-treated mixed gas to the inside of the cargo hold. This reciprocating process can realize the ventilation operation of the cargo hold. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the cargo hold ventilation and silencing system of the present invention;

[0023] Figure 2 It is a partial three-dimensional diagram of the cargo hold ventilation and silencing system of the present invention;

[0024] Figure 3 It is a cross-sectional stereoscopic view of a rectangular tube, a rectangular ring and a second filter screen of the cargo hold ventilation and silencing system of the present invention;

[0025] Figure 4It is a three-dimensional structural schematic diagram of the fifth pipe, mounting base, motor, fan blade and clamp of the cargo hold ventilation and silencing system of the present invention;

[0026] Figure 5 It is a partial three-dimensional diagram of the ventilation and silencer mechanism of the cargo hold ventilation and silencer system of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the pipe cover and the first filter screen of the cargo hold ventilation and silencing system of the present invention;

[0028] Figure 7 A three-dimensional view of the vent cover of the cargo hold ventilation and silencing system of the present invention;

[0029] Figure 8 A partial three-dimensional view of the cargo hold ventilation and silencing system of the present invention from another angle;

[0030] Fig. 9 It is a partially cutaway perspective view of the auxiliary mechanism of the cargo hold ventilation and silencing system of the present invention;

[0031] Fig.10 It is a partial three-dimensional diagram of the auxiliary mechanism of the cargo hold ventilation and silencing system of the present invention;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the first air outlet pipe and the sound absorbing panel of the cargo hold ventilation and silencing system of the present invention;

[0033] Fig.12 The cargo hold ventilation and silencing system of the present invention Figure 8 Enlarged stereogram of point A in the middle.

[0034] In the figure: 1, ventilation and silencer mechanism; 101, first pipe; 102, air heater; 103, first three-way pipe; 104, second pipe; 105, air filter; 106, first air inlet pipe; 107, pipe cover; 108, first filter screen; 109, connecting pipe; 110, second three-way pipe; 111, third pipe; 112, fourth pipe; 113, fifth pipe; 114, mounting base; 115, motor; 116, fan blade; 117, chuck; 118, fastening nut; 119, second air inlet pipe; 120, first air outlet pipe; 121, second air outlet pipe; 122, impedance silencer ; 123, rectangular tube; 124, vent cover; 125, rectangular ring; 126, second filter; 127, controller; 128, first sound insulation cotton; 129, second sound insulation cotton; 130, sound absorbing board; 2, auxiliary mechanism; 201, shell; 202, hollow block; 203, first air vent; 204, second air vent; 205, first guide plate; 206, hollow plate; 207, first rotating rod; 208, fan impeller; 209, rectangular hole; 210, cylindrical hole; 211, second rotating rod; 212, pulley; 213, rectangular plate; 214, guide shell; 215, second guide plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 12 As shown, the present invention provides a technical solution: a cargo hold ventilation and silencing system, comprising a ventilation and silencing mechanism 1, on which an auxiliary mechanism 2 is arranged;

[0037] The auxiliary mechanism 2 includes a shell 201, a first vent hole 203, a second vent hole 204, a first guide plate 205 and a rectangular hole 209. A hollow block 202 is fixed on the top of the shell 201, a hollow plate 206 is fixed inside the shell 201, a first rotating rod 207 is rotatably connected to the inside of the hollow plate 206 through a first bearing, a fan impeller 208 is installed on the mounting end of the first rotating rod 207, and a cylindrical inner wall front surface and an inner wall rear surface of the hollow block 202 are provided. Hole 210, a second rotating rod 211 is rotatably connected between the two cylindrical holes 210 through a second bearing, a pulley 212 is fixedly sleeved on the outer surface of the first rotating rod 207 near the front surface position and the outer surface of the second rotating rod 211 near the front surface position, two rectangular plates 213 are fixedly arranged on the outer surface of the second rotating rod 211 at equal intervals, a guide shell 214 is fixed at the air outlet end of the hollow block 202, and a second guide plate 215 is fixed on the top of the inner wall of the hollow block 202 near the air inlet end.

[0038] according to Figure 1 , Figure 8-Figure 10 and Fig.12 As shown, the first air hole 203 is opened on one side of the inner wall of the shell 201, the interior of the first air hole 203 is connected to the interior of the second air hole 204, and the size of the first air hole 203 is the same as the size of the second air hole 204. The two pulleys 212 are connected by belt transmission, and the belt is movably sleeved inside the rectangular hole 209, so that the belt can perform normal transmission operation under the action of the rectangular hole 209.

[0039] according to Figure 1 , Figure 8-Figure 10 and Fig.12 As shown, the front surface of each rectangular plate 213 is in contact with the front surface of the inner wall of the hollow block 202, and the rear surface of each rectangular plate 213 is in contact with the rear surface of the inner wall of the hollow block 202. The side of each rectangular plate 213 away from the second rotating rod 211 is an arc surface, wherein the arc surfaces of the two rectangular plates 213 are in contact with the top of the inner wall of the hollow block 202 and the bottom of the inner wall of the hollow block 202, respectively. The front surface of the second guide plate 215 is fixed to the front surface of the inner wall of the hollow block 202, and the rear surface of the second guide plate 215 is fixed to the rear surface of the inner wall of the hollow block 202. With the cooperation of the flowing airflow, the hollow block 202, the two cylindrical holes 210, the second bearing, the four rectangular plates 213 and the second guide plate 215, the second rotating rod 211 can be kept rotating.

[0040] according to Figure 1 , Figure 2 , Figure 8 and Fig. 9As shown, the ventilation and silencing mechanism 1 includes a first pipe 101 and a controller 127, an air heater 102 is installed at the air inlet end of the first pipe 101, a first three-way pipe 103 is installed at the air inlet end of the air heater 102, a second pipe 104 is installed at one of the air inlet ends of the first three-way pipe 103, an air filter 105 is installed at the air inlet end of the second pipe 104, a first air inlet pipe 106 is installed at the air inlet end of the air filter 105, a first guide plate 205 is fixed to the inner wall of the first air inlet pipe 106, and the first guide plate 205 is at the outlet of the second vent 204, and one side of the shell 201 is fixed to the outer wall of the first air inlet pipe 106, so that under the action of the first air inlet pipe 106, a mounting position can be provided for the shell 201.

[0041] according to Figure 1 , Figure 2 , Figure 6 , Figure 8 , Fig. 9 and Fig.12 As shown, the second air vent 204 is opened on the inner wall of the first air inlet pipe 106, the top of the shell 201 and the top of the first air inlet pipe 106 are on the same horizontal plane, the air inlet end of the first air inlet pipe 106 is installed with a pipe cover 107, the interior of the pipe cover 107 is installed with a first filter screen 108, the other air inlet end of the first three-way pipe 103 is installed with a connecting pipe 109, the air inlet end of the connecting pipe 109 is installed with a second three-way pipe 110, and the air inlet end of the second three-way pipe 110 is installed with a third pipe 111, and under the action of the third pipe 111, the gas delivered by the fifth pipe 113 connected thereto can be delivered to the interior of the second three-way pipe 110.

[0042] according to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a fourth pipe 112 is installed at the air outlet end of the second three-way pipe 110, a fifth pipe 113 is installed at the air inlet end of the third pipe 111 and the air outlet end of the first pipe 101, mounting seats 114 are fixed inside the two fifth pipes 113, motors 115 are installed on the surfaces of the two mounting seats 114, and fan blades 116 are installed at the output ends of the two motors 115, so that the air inlet end of the fifth pipe 113 can obtain suction with the cooperation of the fan blades 116, the mounting seat 114 and the motor 115.

[0043] according to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Fig.11As shown, the outer walls of the two fifth pipes 113 are threaded with a clamp 117, and the clamping ends of the two clamps 117 are installed with a fastening nut 118. The air inlet end of one of the fifth pipes 113 is installed with a second air inlet pipe 119, the air outlet end of the fourth pipe 112 is installed with a first air outlet pipe 120, and the air outlet end of the other fifth pipe 113 is installed with a second air outlet pipe 121. Under the action of the second air outlet pipe 121, the mixed gas delivered from the fifth pipe 113 connected thereto can be delivered to the interior of the impedance silencer 122. With the cooperation of the clamp 117 and the fastening nut 118, the power cord of the motor 115 passing through the inside of the clamp 117 can be fixed.

[0044] according to Figure 1-Figure 3 , Figure 5 , Figure 7 and Fig.11 As shown, an impedance muffler 122 is installed at the outlet end of the second outlet pipe 121, and a rectangular tube 123 is installed at the outlet end of the impedance muffler 122. The outlet end of the rectangular tube 123, the inlet end of the second inlet pipe 119 and the outlet end of the first outlet pipe 120 are all installed with a vent cover 124. A rectangular ring 125 is fixedly sleeved on the inside of the rectangular tube 123 near the outlet end, and a second filter screen 126 is installed on the surface of the rectangular ring 125. Under the action of the second filter screen 126, dust or other foreign matter can be prevented from being carried in the mixed gas entering the inside of the rectangular tube 123.

[0045] according to Figure 1-Figure 3 and Figure 5 As shown, the second filter screen 126 is movably sleeved inside the rectangular tube 123, the outer wall of the first three-way pipe 103 and the outer wall of the second three-way pipe 110 are both bonded with the first sound insulation cotton 128, the outer wall of the first three-way pipe 103 and the outer wall of the second three-way pipe 110 are both bonded with the second sound insulation cotton 129, and the surface of one of the first sound insulation cotton 128 is in contact with the surface of one of the second sound insulation cotton 129. With the cooperation of the first sound insulation cotton 128 and the second sound insulation cotton 129, the noise generated at the first three-way pipe 103 and the second three-way pipe 110 can be absorbed, thereby achieving a sound insulation effect.

[0046] according to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Fig.11As shown, the surface of another first sound insulation cotton 128 is in contact with the surface of another second sound insulation cotton 129, and the four sides of the inner wall of the second air inlet pipe 119 near the air inlet end and the four sides of the inner wall of the first air outlet pipe 120 near the air outlet end are bonded with sound absorbing panels 130, the air heater 102 is electrically connected to the controller 127, and the two motors 115 are electrically connected to the controller 127, so that with the cooperation of the motor 115 and the fan blades 116, the gas flow inside the ventilation and silencing system pipe can be realized.

[0047] The effect achieved by the entire mechanism is: when the ship's cargo hold needs to use the ventilation and silencing system, the components of the ventilation and silencing system are first installed on the outside of the cargo hold using a special mounting frame for the ventilation and silencing system, and then the rectangular tube 123 is installed at the air inlet of the cargo hold, and then the second air inlet pipe 119 is installed at the air outlet of the cargo hold. When the ventilation and silencing system is installed, the hollow block 202 is just located on one side of the ship. At this time, the controller 127 is installed in the control room of the ship, and then the controller 127 is connected to the power supply in the monitoring room. When the interior of the cargo hold needs to be ventilated, the controller 127 is directly used to start the two motors 115 at the same time. At this time, the motor 115 started inside the fifth pipe 113 connected to the third pipe 111 will be With the cooperation of the connected mounting seat 114, the fan blades 116 connected thereto are driven to rotate, and then the rotating fan blades 116 will, with the cooperation of the corresponding fifth pipe 113, allow the air inlet end of the second air inlet pipe 119 to obtain suction, and then the air inlet end of the second air inlet pipe 119 that obtains suction will, with the cooperation of the vent cover 124 connected thereto, extract the air inside the cargo hold, and then transport it to the inside of the third pipe 111, and then to the inside of the second three-way pipe 110. When the extracted gas is transported to the inside of the second three-way pipe 110, a part of the gas will be transported to the inside of the connecting pipe 109, and then to the inside of the first three-way pipe 103, and most of the gas will be directly transported to the inside of the fourth pipe 112, and then The air is transported to the interior of the first air outlet pipe 120, and then discharged into the environment with the cooperation of the vent cover 124 connected to the first air outlet pipe 120. At the same time, the motor 115 started inside the fifth pipe 113 connected to the first pipe 101 will also drive the fan blades 116 connected thereto to rotate with the cooperation of the mounting base 114 connected thereto. Subsequently, the rotating fan blades 116 will, with the cooperation of the air heater 102, the first three-way pipe 103, the second pipe 104, the air filter 105 and the corresponding fifth pipe 113, allow the air inlet end of the first air inlet pipe 106 to obtain suction. Then, the first air inlet pipe 106 that has obtained suction will, with the cooperation of the pipe cover 107 and the first filter net 108, suck the filtered fresh air in the environment into the first The inside of the air intake pipe 106 is then transported to the inside of the air filter 105. When the fresh air passes through the inside of the air filter 105, the air filter 105 will filter the fresh air again. Then, the fresh air after the second filtration will be directly transported to the inside of the second pipe 104, and then transported to the inside of the first three-way pipe 103. When the fresh air treated twice enters the inside of the first three-way pipe 103, part of the gas transported from the connecting pipe 109 is also transported to the inside of the first three-way pipe 103. At this time, the two gases will be directly mixed together and then transported to the inside of the air heater 102, and then transported to the inside of the first pipe 101, and then pass through the inside of the fifth pipe 113.It is transported to the inside of the second air outlet pipe 121, and then to the inside of the impedance silencer 122. When the mixed gas enters the inside of the impedance silencer 122, the noise refracted or scattered to the inside of the impedance silencer 122 when the mixed gas collides with the second air outlet pipe 121 can be absorbed by the action of the impedance silencer 122. Then the mixed gas will enter the inside of the rectangular tube 123. When the gas passes through the second filter 126 inside the rectangular tube 123, the second filter 126 will filter out the dust or other foreign matter carried in the mixed gas, and the treated mixed gas will be directly transported to the inside of the cargo hold with the cooperation of the vent cover 124 connected to the rectangular tube 123, and so on. Ventilation operation is performed inside the cargo hold, that is, harmful gases or odors accumulated inside the cargo hold can be discharged. When the gas extracted from the cargo hold reaches the inside of the second three-way pipe 110, the corresponding first sound insulation cotton 128 and the corresponding second sound insulation cotton 129 can cooperate to reduce the noise generated when the airflow reaches the second three-way pipe 110 (when the airflow and the pipe wall of the second three-way pipe 110 produce violent impact and friction, it will cause airflow turbulence and generate noise). Similarly, when the gas from the connecting pipe 109 and the fresh air gas that has been processed twice converge inside the first three-way pipe 103, the airflow (mixed gas) at the time of convergence will be turbulent and generate noise. At this time, the corresponding first sound insulation cotton 128 and the corresponding second sound insulation cotton 129 With the cooperation of the hollow block 202, the two cylindrical holes 210, the second bearing, the four rectangular plates 213 and the second guide plate 215, the second rotating rod 211 is rotated continuously, and the airflow passing through the rectangular plate 213 directly enters the interior of the guide shell 214, and then is discharged from the air outlet end of the guide shell 214. At the same time, the second rotating rod 211 which is rotating continuously is directly on the two pulleys 212, the belt, the first bearing, the housing, and the like. 201, the hollow plate 206 and the rectangular hole 209 cooperate to drive the fan impeller 208 to rotate, and the rotating fan impeller 208 will, with the cooperation of the shell 201, draw the fresh air in the environment into the interior of the shell 201, and then, with the cooperation of the first air vent 203, the second air vent 204 and the first guide plate 205, be guided to the interior of the first air inlet pipe 106, and then together with the fresh air entering from the air inlet end of the first air inlet pipe 106, be transported to the interior of the air filter 105. At this time, the amount of fresh air discharged from the air outlet end of the first air inlet pipe 106 will increase. Then, the above-mentioned operation steps are used to ventilate the interior of the cargo hold, which will greatly increase the speed at which harmful gases or foreign matter accumulated in the cargo hold are discharged.That is, the ventilation time of the cargo hold is reduced, the consumption of electric power resources is reduced, and the use effect and efficiency of the ventilation and silencing system are improved. At the same time, when the two motors 115 are not started and the ship is moving, the auxiliary mechanism 2 can also ventilate the ship's cargo hold through the cooperation of some structures in the ventilation and silencing mechanism 1. When ventilation is needed to increase the temperature inside the cargo hold, when using the ventilation and silencing system, it is only necessary to start the air heater 102 again to heat the fresh air passing through the air heater 102.

[0048] Among them, the air heater 102, the air filter 105, the first filter 108, the motor 115, the chuck 117, the impedance silencer 122, the second filter 126, the controller 127 (PLC controller), the first sound insulation cotton 128, the second sound insulation cotton 129 and the sound absorbing panel 130 are all existing technologies, and their working principles are all public technologies. Their models can be selected according to actual conditions and no excessive explanation will be given here.

[0049] The output end of the motor 115 inside the fifth pipe 113 connected to the third pipe 111 is aligned with the direction of the second air inlet pipe 119 , and the output end of the motor 115 inside the fifth pipe 113 connected to the first pipe 101 is aligned with the direction of the second air outlet pipe 121 .

[0050] Among them, the first bearing, the second bearing and the belt are all commonly used parts in real life.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cargo hold ventilation and silencing system, comprising a ventilation and silencing mechanism (1), characterized in that: The ventilation and silencer mechanism (1) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises a shell (201), a first vent hole (203), a second vent hole (204), a first guide plate (205) and a rectangular hole (209); a hollow block (202) is fixed on the top of the shell (201); a hollow plate (206) is fixed inside the shell (201); a first rotating rod (207) is rotatably connected to the inside of the hollow plate (206) via a first bearing; a fan impeller (208) is mounted on the mounting end of the first rotating rod (207); and both the inner wall front surface of the hollow block (202) and the inner wall rear surface of the hollow block (202) are A cylindrical hole (210) is provided, a second rotating rod (211) is rotatably connected between the insides of the two cylindrical holes (210) via a second bearing, a pulley (212) is fixedly sleeved on the outer surface of the first rotating rod (207) near the front surface and the outer surface of the second rotating rod (211) near the front surface, two rectangular plates (213) are fixedly arranged on the outer surface of the second rotating rod (211) at equal intervals, a guide shell (214) is fixed on the air outlet end of the hollow block (202), and a second guide plate (215) is fixed on the top of the inner wall of the hollow block (202) near the air inlet end; The ventilation and silencing mechanism (1) comprises a first pipe (101) and a controller (127); an air heater (102) is installed at the air inlet end of the first pipe (101); a first three-way pipe (103) is installed at the air inlet end of the air heater (102); a second pipe (104) is installed at one of the air inlet ends of the first three-way pipe (103); an air filter (105) is installed at the air inlet end of the second pipe (104); a first air inlet pipe (106) is installed at the air inlet end of the air filter (105); the first guide plate (205) is fixed to the inner wall of the first air inlet pipe (106), and the first guide plate (205) is located at the outlet of the second vent hole (204); the housing (20 One side of the housing (201) is fixed to the outer wall of the first air inlet pipe (106), the second air vent (204) is opened on the inner wall of the first air inlet pipe (106), the top of the housing (201) and the top of the first air inlet pipe (106) are on the same horizontal plane, a pipe cover (107) is installed at the air inlet end of the first air inlet pipe (106), a first filter screen (108) is installed inside the pipe cover (107), a connecting pipe (109) is installed at the other air inlet end of the first three-way pipe (103), a second three-way pipe (110) is installed at the air inlet end of the connecting pipe (109), a third pipe (111) is installed at the air inlet end of the second three-way pipe (110), and a third pipe (111) is installed at the air outlet end of the second three-way pipe (110). a fourth pipe (112), the air inlet end of the third pipe (111) and the air outlet end of the first pipe (101) are both installed with a fifth pipe (113), the interiors of the two fifth pipes (113) are both fixed with a mounting seat (114), the surfaces of the two mounting seats (114) are both installed with motors (115), the output ends of the two motors (115) are both installed with fan blades (116), the outer walls of the two fifth pipes (113) are both threaded with a clamp (117), the clamping ends of the two clamps (117) are both installed with a fastening nut (118), the air inlet end of one of the fifth pipes (113) is installed with a second air inlet pipe (119), the air outlet end of the fourth pipe (112) is installed with a first motor (115), and the second motor (116) is installed with a second motor (117). an air outlet pipe (120), a second air outlet pipe (121) is installed at the air outlet end of the other fifth pipe (113), an impedance silencer (122) is installed at the air outlet end of the second air outlet pipe (121), a rectangular pipe (123) is installed at the air outlet end of the impedance silencer (122), a vent cover (124) is installed at the air outlet end of the rectangular pipe (123), a second air inlet pipe (119) and the air outlet end of the first air outlet pipe (120), a rectangular ring (125) is fixedly sleeved at a position near the outlet end of the rectangular pipe (123), a second filter screen (126) is installed on the surface of the rectangular ring (125), and the second filter screen (126) is movably sleeved inside the rectangular pipe (123),The outer wall of the first three-way pipe (103) and the outer wall of the second three-way pipe (110) are both bonded with first sound insulation cotton (128), the outer wall of the first three-way pipe (103) and the outer wall of the second three-way pipe (110) are both bonded with second sound insulation cotton (129), the surface of one of the first sound insulation cotton (128) is in contact with the surface of one of the second sound insulation cotton (129), and the surface of another of the first sound insulation cotton (128) is in contact with the surface of another of the second sound insulation cotton (129), the inner wall of the second air inlet pipe (119) near the air inlet end and the inner wall of the first air outlet pipe (120) near the air outlet end are both bonded with sound absorbing panels (130), the air heater (102) is electrically connected to the controller (127), and the two motors (115) are both electrically connected to the controller (127); When the mixed gas enters the interior of the impedance silencer (122), the noise refracted or scattered into the interior of the impedance silencer (122) when the mixed gas collides with the second outlet pipe (121) can be absorbed by the impedance silencer (122). Then, the mixed gas enters the interior of the rectangular tube (123). When the gas passes through the second filter (126) inside the rectangular tube (123), the second filter (126) will filter out the dust or other foreign matter carried in the mixed gas, and the treated mixed gas will be directly transported to the interior of the cargo hold with the cooperation of the vent cover (124) connected to the rectangular tube (123). In this way, the interior of the cargo hold can be ventilated. The harmful gas or odor accumulated in the cargo hold can be discharged. When the gas extracted from the cargo hold reaches the inside of the second three-way pipe (110), the corresponding first sound insulation cotton (128) and the corresponding second sound insulation cotton (129) cooperate to reduce the noise generated when the airflow reaches the second three-way pipe (110). Similarly, when the gas from the connecting pipe (109) and the fresh air gas that has been processed twice converge inside the first three-way pipe (103), the airflow at the time of convergence will become turbulent and generate noise. At this time, the corresponding first sound insulation cotton (128) and the corresponding second sound insulation cotton (129) cooperate to reduce the noise generated when the airflow reaches the first three-way pipe (103).

2. The cargo hold ventilation and silencing system according to claim 1, characterized in that: The first vent hole (203) is provided on one side of the inner wall of the housing (201); the interior of the first vent hole (203) is connected to the interior of the second vent hole (204); the size of the first vent hole (203) is the same as the size of the second vent hole (204); the two pulleys (212) are connected via a belt transmission, and the belt is movably sleeved inside the rectangular hole (209).

3. The cargo hold ventilation and silencing system according to claim 1, characterized in that: The front surface of each rectangular plate (213) is in contact with the front surface of the inner wall of the hollow block (202), and the rear surface of each rectangular plate (213) is in contact with the rear surface of the inner wall of the hollow block (202). The side of each rectangular plate (213) away from the second rotating rod (211) is an arc surface, wherein the arc surfaces of the two rectangular plates (213) are in contact with the top of the inner wall of the hollow block (202) and the bottom of the inner wall of the hollow block (202), respectively. The front surface of the second guide plate (215) is fixed to the front surface of the inner wall of the hollow block (202), and the rear surface of the second guide plate (215) is fixed to the rear surface of the inner wall of the hollow block (202).

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