JP2014163344A - Mist elimination device for ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mist elimination device for a ship which efficiently removes mist contained in gas to be treated after an exhaust gas washing treatment.SOLUTION: A mist elimination device 100 for a ship includes: a housing 102 in which opening parts 110, 112 are disposed respectively on substantial centers of the ceiling surface side and the bottom surface side; a gas to be treated channel pipe 104 which is extended downward in the vertical direction from the ceiling surface side opening part and causes the gas to be treated to flow therethrough; a curved part 106 which is disposed opposite to the top end side of the gas to be treated channel pipe and converts the direction in which the gas to be treated flows from the upper side to the lower side in the vertical direction or from the lower side to the upper side in the vertical direction; and a drainage 108 which is disposed on a bottom part 107 of the curved part 106 and discharges drain 34 after the washing treatment contained in the gas to be treated to an external part of the housing. Therein, the gas to be treated after the washing treatment is introduced from either one side of the ceiling surface side opening part and the bottom surface side opening part and the gas to be treated after eliminating mist is exhausted from either the other side of the ceiling surface opening part and the bottom surface side opening part.

Description

  The present invention relates to a ship mist removing apparatus for removing mist contained in a gas to be treated after exhaust gas cleaning of a large diesel engine for ships.

  As a purification device that removes solid particulates such as soot and dust contained in exhaust gas, an absorbing solution is sprayed onto the exhaust gas from above and brought into gas-liquid contact, and PM (Particulate Matter) and SOx in the exhaust gas are absorbed and washed and removed. There is a scrubber to do. An exhaust gas purification apparatus for marine vessels using a scrubber has been developed as a countermeasure against exhaust gas such as SOx discharged from a large diesel engine of a marine vessel fueled with C heavy oil or the like. As the exhaust gas purifying apparatus, Patent Document 1 discloses that the angle of contact between water droplets and solid particles, the particle diameter of the water droplets, and the velocity are set within a preferable range, and the dust is efficiently removed with a small amount of water. A marine diesel engine exhaust gas purification device is disclosed.

JP 2004-197624 A

  However, as shown in FIG. 5, the conventional scrubber 12 has a mist catcher 13 on the outlet side of the gas to be treated after the exhaust gas cleaning process, but does not have a function of actively removing mist. For this reason, it is a problem that the mist 14 flows out to the rear stage side of the scrubber 12 and adversely affects various devices provided in the rear stage side. For example, when performing exhaust gas recirculation (EGR) in a marine diesel engine or the like, in addition to PM and SOx contained in the exhaust gas, mist contained in the gas to be treated has adverse effects such as corrosion and clogging. It affects the internal combustion engine on the rear stage side. The marine diesel engine exhaust gas purification device disclosed in Patent Document 1 is provided with a mist separator on the outlet pipe side of the purified gas. However, mist may pass through the mist separator, and mist removal is insufficient. there were.

  The present invention has been made in view of the above-described problems of conventional marine diesel engine exhaust gas purification devices, and can more efficiently and reliably remove mist contained in a gas to be treated after exhaust gas cleaning treatment. Another object of the present invention is to provide a new and improved ship mist removing apparatus.

  One aspect of the present invention is a ship mist removing device that removes mist contained in a gas to be treated after being cleaned by a scrubber of exhaust gas from a ship engine, and has an opening at substantially the center on the ceiling surface side and the bottom surface side. , A housing to which the gas to be processed flows downwardly from the opening on the ceiling surface side, and a gas channel pipe to which the gas to be processed flows, and a front end side of the gas channel pipe to be processed A bent portion that changes the flow direction of the gas to be processed from upward to downward or downward to upward with respect to the vertical direction, and is provided at the bottom of the bent portion, and is included in the gas to be processed. A drain outlet for draining the drain after the cleaning process to the outside of the housing, and the process target after the cleaning process from any one of the ceiling side opening and the bottom side opening. Introducing a gas, related to the marine mist removing apparatus characterized by discharging the treated gas after removing processing the mist from the other of the ceiling surface side opening portion and the bottom-side opening.

  According to one aspect of the present invention, the direction of flow of the gas to be treated after the scrubber cleaning process is changed to the opposite direction with respect to the vertical direction at the bent portion and the ceiling surface, and then drained from the bottom of the bent portion. Since the extraction is performed, the mist contained in the gas to be processed after the cleaning process can be efficiently removed.

  At this time, in one aspect of the present invention, the opening on the ceiling surface side serves as an inlet for introducing the gas to be processed after the cleaning treatment, and the opening on the bottom surface side discharges the gas to be processed after the mist removal processing. It may be a discharge outlet.

  In this way, after the cleaning target gas introduced from the opening on the ceiling surface collides with the bottom of the bent portion through the processing gas channel pipe, the gas processing channel is reversed. Since it flows upward in the vertical direction outside the tube, mist can be efficiently collected and removed at the bottom of the bent portion.

  In one embodiment of the present invention, the bottom-side opening serves as an inlet for introducing the gas to be processed after the cleaning process, and the ceiling-side opening discharges the gas to be processed after the mist removal process. It is good also as a taper surface which becomes a discharge port and the ceiling surface of the said housing falls toward the center of this ceiling surface.

  In this way, after the cleaning process gas introduced from the opening on the bottom side collides with the ceiling surface through the outside of the bent portion, the gas is reversed to the outer peripheral surface of the gas flow channel pipe to be processed. Along the vertical direction. For this reason, since the mist adhering to the ceiling surface travels along the taper surface and then travels along the outer peripheral surface of the gas channel pipe to be processed and reaches the bent portion, the mist can be efficiently removed by draining at the bent portion. it can.

  Further, in one aspect of the present invention, a retention portion in which the gas to be processed after the scrubber cleaning process is retained is provided below the bottom surface side opening, and the bottom of the retention portion is provided with the gas to be processed. It is good also as providing the drain removal which drains the drain after the said washing process contained to the exterior of the said retention part.

  In this way, since the gas to be processed after the scrubber cleaning process is first drained as it is, the mist removing process is performed by the mist removing apparatus, so that the mist can be removed more efficiently.

  In one embodiment of the present invention, the plurality of housings may be modularized, and the bottom surface side opening and the ceiling surface side opening may be combined to be vertically connectable.

  In this way, the mist removal amount by the mist removal device can be adjusted according to the displacement of the ship engine.

  As described above, according to the present invention, the gas to be treated after the cleaning treatment is changed to the opposite direction with respect to the vertical direction at the bent portion and the ceiling surface, and then drained from the bottom portion of the bent portion. Therefore, the mist contained in the gas to be processed after the cleaning process can be efficiently removed.

1 is a configuration diagram of a marine exhaust gas treatment apparatus including a marine mist removing apparatus according to a first embodiment of the present invention. It is a block diagram of the mist removal apparatus for ships of the embodiment. It is a block diagram of 2nd Embodiment of the mist removal apparatus for ships of this invention. It is a block diagram of 3rd Embodiment of the mist removal apparatus for ships of this invention. It is a schematic block diagram of the conventional scrubber.

  Hereinafter, preferred embodiments of the present invention will be described in detail. The present embodiment described below does not unduly limit the contents of the present invention described in the claims, and all the configurations described in the present embodiment are essential as means for solving the present invention. Not necessarily.

(First embodiment)
First, the configuration of a marine exhaust gas treatment apparatus including the marine mist removing apparatus of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of a marine exhaust gas treatment apparatus including a marine mist removing apparatus according to a first embodiment of the present invention.

  As shown in FIG. 1, the marine exhaust gas treatment device 10 is roughly configured by a scrubber 12 and a mist removing device 100. The scrubber 12 sprays an absorbing liquid on the exhaust gas from the marine engine from above and brings it into gas-liquid contact, absorbs PM and SOx contained in the exhaust gas, and cleans and removes them. The mist removing apparatus 100 removes mist contained in the gas 30 to be processed after the scrubber 12 performs the cleaning process. The scrubber 12 includes a cleaning tower 14 in which liquid gas contact is performed, an injection nozzle 16 disposed therein, and a receiving tank 18 that processes the gas and liquid after the liquid gas contact.

  Exhaust gas from the marine diesel engine is introduced through an exhaust gas pipe (not shown) connected to the head of the cleaning tower 14 to form a gas flow 20. The cleaning tower 14 is connected to the receiving tank 18 through the introduction pipe line 22 and is positioned so close that the lower end of the introduction pipe line 22 is not immersed in the liquid surface 24. A plurality of injection nozzles 16 (three in this example) are provided near the head of the cleaning tower 14, that is, near the entrance of the exhaust gas. On the top side of the receiving tank 18, an outlet pipe 26 through which the gas to be processed after the cleaning process flows is provided. And the outlet piping 26 is connected to the mist removal apparatus 100 which removes the mist contained in the to-be-processed gas 30 after a washing process. The receiving tank 18 is further provided with an overflow conduit (not shown) for discharging the cleaning waste liquid while maintaining a predetermined liquid level 24.

  In the marine exhaust gas treatment apparatus 10 of the present embodiment, the introduced exhaust gas flow 20 comes into contact with seawater droplets injected at a predetermined injection angle, initial velocity, and particle diameter from the injection nozzle 16, and dust particles in the exhaust gas are discharged. It is captured by the water droplet particles and falls in the cleaning tower 14. The dust particles trapped in the water droplet particles are once stored in the receiving tank 18 together with the droplets, and the waste liquid overflowing from the liquid surface 24 is discharged through the overflow conduit. On the other hand, the exhaust gas from which the dust has been removed moves from the cleaning tower 14 through the introduction pipe 22 to the receiving tank 18, moves to the outlet pipe 26 through the space of the receiving tank 18, and is introduced into the mist removing apparatus 100. And the to-be-processed gas 30 after exhaust gas processing with the scrubber 12 removes mist with the mist removal apparatus 100, and the to-be-processed gas 32 after mist removal is guide | induced outside the exhaust gas processing apparatus 10 for ships.

  Next, the structure of the ship mist removing apparatus of this embodiment is demonstrated using drawing. FIG. 2 is a configuration diagram of the marine mist removing apparatus of the present embodiment. As illustrated in FIG. 2, the marine mist removing apparatus 100 according to the present embodiment includes a housing 102, a gas flow channel pipe 104 to be processed, a bent portion 106, and a drain remover 108.

  The housing 102 is provided with openings 110 and 112 at substantially the center on the ceiling surface side and the bottom surface side, respectively. In the present embodiment, the ceiling surface side opening 110 serves as an introduction port for introducing the treated gas 30 after the cleaning process, and the bottom surface side opening 112 serves as an exhaust port for discharging the treated gas 32 after the mist removal process. . The to-be-processed gas flow path pipe 104 extends downward from the ceiling surface side opening 110 in the vertical direction of the housing 102 and serves as a conduit through which the to-be-processed gas 30 flows.

  The bent portion 106 is provided to face the distal end side 104a of the gas channel tube 104 to be processed, and changes the direction in which the gas 30 to be processed flows from downward to upward with respect to the vertical direction. That is, the bent portion 106 reverses the flow of the gas to be processed 30 introduced from the ceiling surface side opening 110 via the gas channel tube 104 to be processed, and makes a U-turn in the vertical direction.

  The drainage 108 is a pipe line in which an opening 108 a is provided in the bottom 107 of the bent portion 106 and drains the drain 34 after the cleaning process included in the gas 30 to be processed to the outside of the housing 102. In the present embodiment, in order to draw the drain 34 efficiently and smoothly, the bottom 107 has a gentle inclined surface that is somewhat inclined from the substantially horizontal direction to the portion where the opening 108a of the drain 108 is provided.

  In the present embodiment, after the gas to be processed 30 after the cleaning process in the scrubber 12 introduced from the ceiling surface side opening 110 collides with the bottom 107 of the bent portion 106 through the gas channel 104 to be processed. Inverted and flows upward in the vertical direction to the outside of the gas channel tube 104 to be processed. For this reason, since the mist contained in the gas 30 to be treated that collided with the bottom 107 of the bent portion 106 is attached to the bottom 107 and drained by the drain 108, the mist is efficiently collected and removed. Can do.

  That is, since the mist is collected by using the bent portion 106 and the drainage is performed by the drainage 108, the mist that could not be collected so far can be efficiently collected. It should be noted that the gas to be processed that flows vertically upward on the outside of the gas channel pipe 104 is reversed near the upper end portion 106a of the bent portion 106 and flows vertically downward on the outer side of the bent portion 106. It is discharged from the side opening 112.

  In addition, the marine mist removing apparatus 100 of the present embodiment is characterized in that it can be connected in the vertical direction by modularizing the housing and aligning the bottom surface side opening and the ceiling surface side opening. That is, in the present embodiment, as shown in FIG. 2, the ceiling surface side opening 130 of the (second) housing 122 having the same specifications as the housing 102 is aligned with the bottom surface side opening 112 of the (first) housing 102. Connected vertically. The second housing 122 is provided with a to-be-processed gas flow path pipe 124, a bent portion 126, and a drain outlet 128, which are similar components provided in the first housing 102. In this way, by configuring the housings 102 and 122 to be a plurality of modularized mist removal units, the mist removal amount by the mist removal device 100 can be adjusted according to the displacement of the ship engine.

  That is, as shown in FIG. 2, the gas to be processed discharged from the bottom surface side opening 112 is introduced into the ceiling surface side opening 130 of the second housing 122 and bends through the gas channel pipe 124 to be processed. It collides with the bottom 127 of the part 126. Then, the gas to be processed that has collided with the bottom 127 is reversed and flows to the upper side in the vertical direction outside the gas flow channel pipe 124 to be processed. After that, mist contained in the gas to be processed colliding with the bottom 127 of the bent portion 126 is attached to the bottom 127, and then drainage is performed by the drainage 128. It should be noted that the gas to be processed which flows upward in the vertical direction to the outside of the gas channel pipe 124 is reversed near the upper end portion 126a of the bent portion 126, and flows vertically downward on the outer side of the bent portion 126. After being discharged from the opening 132, the gas to be treated 32 after mist removal is guided to the outside of the marine exhaust gas treatment device 10 through the receiving tank 134.

  Thus, the ship mist removal apparatus 100 of this embodiment can increase the mist removal amount in waste gas by laminating | stacking as a plurality of mist removal units which modularized the housings 102 and 122. FIG. For this reason, the mist removal amount according to the displacement of the ship engine can be easily adjusted. In this embodiment, the ship mist removing apparatus 100 of this embodiment is provided by connecting two modularized housings 102 and 122 in the vertical direction, but the number of housings to be connected is two. Without limitation, the number can be changed according to the displacement of the ship engine.

(Second Embodiment)
Next, the structure of the ship mist removal apparatus of the 2nd Embodiment of this invention is demonstrated, using drawing. FIG. 3 is a configuration diagram of the marine mist removing apparatus of the present embodiment. As shown in FIG. 3, the marine mist removing apparatus 200 according to the present embodiment includes a housing 202, a gas flow channel pipe 204 to be processed, a bent portion 206, and a drain remover 208. In the present embodiment, the ceiling surface 203 of the housing 202 is a tapered surface that is lowered toward the center of the ceiling surface 203. In addition, since the to-be-processed gas flow path pipe 204, the bending part 206, and the drain removal 208 in this embodiment are the structures similar to 1st Embodiment, the description is abbreviate | omitted.

  In this embodiment, the bottom surface side opening 212 serves as an introduction port for introducing the treated gas 30 after the cleaning process, and the ceiling surface side opening 210 serves as a discharge port for discharging the treated gas 32 after the mist removal process. . That is, the flow direction of the to-be-processed gas and the ship mist removing apparatus 100 of the first embodiment is opposite to each other.

  Further, the marine mist removing apparatus 200 of the present embodiment is similar to the first embodiment in that the ceiling surface side opening 230 of the second housing 222 having the same specifications as the first housing 202 is used as the bottom surface of the first housing 202. They are connected in the vertical direction so as to match the side openings 212. In the second housing 222, similarly to the first housing 202, a gas passage tube 224 to be processed, a bent portion 226, and a drainer 228 are provided.

  By configuring the marine mist removing apparatus 200 of this embodiment in such a configuration, as shown in FIG. 3, the gas to be treated 30 introduced from the outlet pipe 26 of the scrubber 12 (see FIG. 1) is received in the receiving tank 234. Then, it is introduced from the bottom opening 232 of the second housing 222. Then, the gas 30 to be processed flows inside the second housing 222 in the vertical direction outside the bent portion 226, collides with the ceiling surface 223 of the second housing 222 and reverses, and moves inside the bent portion 226 in the vertical direction. Flows downward.

  In the present embodiment, since the ceiling surface 223 of the housing 222 is a tapered surface that goes down toward the center of the ceiling surface 223, the gas to be processed 30 adheres to the ceiling surface 223 when it collides with the ceiling surface 223. The mist flows along the ceiling surface 223 toward the center. The mist travels along the outer peripheral surface of the gas channel tube 204 to be processed and moves to the bottom portion 227 of the bent portion 226. On the other hand, the gas to be processed 30 collides with the bottom portion 227 of the bent portion 226, and the gas to be processed that collides with the bottom portion 227 is reversed and flows inside the gas passage tube 224 to be vertically upward.

  In the present embodiment, the mist that has adhered to the ceiling surface 223 and then reached the bottom 227 of the bent portion 226 through the gas channel pipe 224 to be processed collides with the bottom 227 of the bent portion 226 and is attached to the bottom 226. The mist can be removed simultaneously by draining 228. For this reason, mist can be removed efficiently.

  The gas to be processed that has flowed upward in the vertical direction into the gas channel pipe 224 to be processed is then introduced into the bottom side opening 212 of the first housing 202 after passing through the ceiling side opening 230. Then, the outside of the bent portion 206 flows upward in the vertical direction inside the first housing 202, collides with the ceiling surface 203 of the first housing 202 and reverses, and flows inside the bent portion 206 downward in the vertical direction. Thereafter, in the same manner, the gas to be processed collides with the bottom portion 207 of the bent portion 206, and the gas to be processed that collided with the bottom portion 207 is reversed and flows upward in the vertical direction inside the gas passage tube 204 to be processed. The treated gas 32 after mist removal is guided to the outside of the marine exhaust gas treatment apparatus 10 using the ceiling side opening 210 as an outlet. Similarly, the mist that adheres to the ceiling surface 203 and then reaches the bottom 207 of the bent portion 206 through the gas channel pipe 204 to be processed collides with the bottom 207 of the bent portion 206 and adheres to the bottom 207. The drained mist can be simultaneously removed by drainage 208.

  As described above, in this embodiment, after the cleaning target gas introduced from the bottom side openings 232 and 212 collides with the ceiling surfaces 223 and 203 through the outer sides of the bent portions 226 and 206, the inversion is performed. As a result, the gas flows along the outer peripheral surface of the gas flow channel pipes 224 and 204 inside the bent portions 226 and 206 in the vertical direction. For this reason, since the mist adhering to the ceiling surfaces 223 and 203 reaches the bent portions 226 and 206 from the tapered surface to the outer peripheral surface of the gas channel pipe to be processed, it drains from the bottom surfaces 227 and 207 of the bent portions 226 and 206. Mist can be efficiently removed by draining with the drains 228 and 208.

  Further, the marine mist removing apparatus 200 according to the present embodiment, like the first embodiment, stacks the housings 202 and 222 having the same components therein as a plurality of modularized mist removing units. The amount of mist removal in the exhaust gas can be increased. For this reason, the mist removal amount according to the displacement of the ship engine can be easily adjusted. In the present embodiment, the ship mist removing apparatus 200 of the present embodiment is provided by stacking two modular housings 202 and 222, but the number of stacked housings is not limited to two. The number can be changed according to the displacement of the ship engine.

(Third embodiment)
Next, the structure of the mist removal apparatus for ships of the 3rd Embodiment of this invention is demonstrated, using drawing. FIG. 4 is a configuration diagram of the marine mist removing apparatus of the present embodiment. As shown in FIG. 4, the ship mist removing apparatus 300 according to the present embodiment has a modularized first housing 302 and a second housing whose ceiling surfaces 303 and 323 are tapered as in the second embodiment. The housing 322 is connected in the vertical direction. In the first housing 302 and the second housing 322, gas flow pipes 304 and 324 having processing functions similar to those of the mist removing apparatus of the second embodiment, bent portions 306 and 326, and drains 308 and 328 are provided. Are provided respectively.

  The ship mist removing apparatus 300 according to the present embodiment is directly mounted on the opening 336 on the ceiling surface side of the receiving tank 334 of the scrubber 14. That is, as shown in FIG. 4, a receiving tank 334 is provided below the bottom surface side opening 332 of the housing 322, which serves as a retention portion where the gas to be processed after the cleaning process by the scrubber 12 is retained. A drain drain 338 is provided on the bottom 335 side of the receiving tank 334 to drain the drain after the cleaning process included in the gas to be processed to the outside of the receiving tank 334.

  With this configuration, the gas 30 to be treated after the scrubber 12 is first passed through the receiving tank 334 and drained as it is, and then the mist removing process is performed by the ship mist removing apparatus 300. Mist can be removed more efficiently. Further, in the marine mist removing apparatus 300 of the present embodiment, since it is directly mounted on the receiving tank 334 of the scrubber 12, the compact of the marine exhaust gas treatment apparatus 50 constituted by the scrubber 12 and the marine mist removing apparatus 300. Can be achieved. Furthermore, the marine mist removing apparatus 300 of the present embodiment can be changed relatively easily from the mist catcher provided in the existing marine exhaust gas treatment apparatus.

  Further, in the ship mist removing apparatus 300 of the present embodiment, the bottom side openings 332 and 312 serve as inlets for introducing the gas to be processed 30 after the cleaning process, and the ceiling side openings 330 and 310 remove mist. It becomes an outlet for discharging the gas to be processed 32 later. For this reason, the mist removing operation is the same as that of the second embodiment except for the process until the gas to be treated is introduced into the marine mist removing apparatus 300. That is, as shown in FIG. 4, the gas to be treated 30 introduced from the ceiling side opening 336 of the receiving tank 334 of the scrubber 12 is introduced from the bottom side opening 332. Then, the gas 30 to be processed flows inside the second housing 322 outside the bent portion 326 upward in the vertical direction, collides with the ceiling surface 323 of the second housing 322 and reverses, and moves inside the bent portion 326 in the vertical direction. Flows downward.

  In the present embodiment, similarly to the second embodiment, the ceiling surface 323 of the housing 322 is a tapered surface that goes down toward the center of the ceiling surface 323, so that the gas to be processed 30 collides with the ceiling surface 323. At this time, the mist adhering to the ceiling surface 323 flows toward the center along the ceiling surface 323. The mist travels through the gas channel tube 324 to be processed and moves to the bottom 327 of the bent portion 326. On the other hand, the gas 30 to be processed collides with the bottom 327 of the bent portion 326, and the gas to be processed that collides with the bottom 327 is reversed and flows upward in the vertical direction in the gas channel 324 to be processed.

  In the present embodiment, the gas to be processed collides with the ceiling surface 323, travels through the gas channel pipe 324 to be processed and reaches the bottom 328 of the bent portion 326, and collides with the bottom 327 of the bent portion 326 to cause the bottom 326. The mist adhering to can be removed at the same time by the drain 328. For this reason, mist can be removed efficiently.

  The gas to be processed that has flowed upward in the vertical direction inside the gas channel pipe 324 to be processed is then introduced into the bottom side opening 312 of the first housing 302 after passing through the ceiling side opening 330. Then, the outside of the bent portion 306 flows upward in the vertical direction inside the first housing 302, collides with the ceiling surface 303 of the first housing 302 and reverses, and flows inside the bent portion 306 downward in the vertical direction.

  Thereafter, in the same manner, the gas to be processed collides with the bottom portion 307 of the bent portion 306, and the gas to be processed that collides with the bottom portion 307 is reversed and flows inside the gas passage tube 304 to the upper side in the vertical direction. The treated gas 32 after mist removal is guided to the outside of the marine exhaust gas treatment device 50 using the ceiling side opening 310 as a discharge port. Similarly, the mist that adheres to the ceiling surface 303 and then travels through the gas flow channel pipe 304 to reach the bottom portion 307 of the bent portion 306 collides with the bottom portion 307 of the bent portion 306 and adheres to the bottom portion 307. The drained mist can be removed simultaneously by draining 308.

  Although each embodiment of the present invention has been described in detail as described above, it is easily understood by those skilled in the art that many modifications can be made without departing from the novel matters and effects of the present invention. It will be possible. Therefore, all such modifications are included in the scope of the present invention.

  For example, a term described with a different term having a broader meaning or the same meaning at least once in the specification or the drawings can be replaced with the different term in any part of the specification or the drawings. Further, the configuration and operation of the ship mist removing apparatus are not limited to those described in the embodiments of the present invention, and various modifications can be made.

10, 50 Exhaust gas treatment device 12 for scrubber 18, 134, 334 Receiving tank (storage tank)
100, 200, 300 Ship mist removing device 102, 202, 302 Housing 203, 303 Ceiling surface 104, 204, 304 Processed gas flow channel pipe 106, 206, 306 Bent portion 108, 208, 308 Drain removal 110, 210, 310 Ceiling side openings 112, 212, 312 Bottom side openings 102, 202, 302 Housing 203, 303, 223, 323 Ceiling surface

Claims (5)

A ship mist removing device that removes mist contained in a gas to be treated after cleaning with a scrubber of exhaust gas from a ship engine,
Housings each provided with an opening at substantially the center on the ceiling surface side and the bottom surface side;
A gas channel pipe to be processed which extends downward from the opening on the ceiling surface in the vertical direction of the housing and through which the gas to be processed flows;
A bent portion provided opposite to the distal end side of the gas pipe to be processed, and a direction for changing the flow direction of the gas to be processed from downward to upward or from upward to downward with respect to the vertical direction;
A drain outlet provided at the bottom of the bent portion and draining the drain after the cleaning treatment contained in the gas to be treated to the outside of the housing;
The cleaning target gas is introduced from one of the ceiling surface side opening and the bottom surface side opening, and the mist is removed from the other of the ceiling surface side opening and the bottom surface side opening. A ship mist removing device that discharges a gas to be treated after treatment.   The opening on the ceiling surface side serves as an inlet for introducing the gas to be treated after the cleaning process, and the opening on the bottom surface serves as an outlet for discharging the gas to be treated after the mist removal process. The ship mist removing apparatus according to claim 1.   The bottom surface side opening serves as an inlet for introducing the gas to be treated after the cleaning process, the ceiling surface side opening serves as a discharge port for discharging the gas to be treated after removing the mist, and the housing The ship mist removing apparatus according to claim 1, wherein the ceiling surface is a tapered surface that descends toward the center of the ceiling surface.   A retention portion in which the gas to be treated after the scrubber cleaning process stays is provided below the opening on the bottom side, and the drain after the cleaning process contained in the gas to be processed is provided at the bottom of the retention portion. The ship mist removing apparatus according to claim 3, wherein drainage for draining is provided outside the staying portion.   The plurality of housings are modularized, and can be connected in a vertical direction by combining the bottom surface side opening and the ceiling surface side opening. Mist remover for ships.

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