CN111821804A

CN111821804A - Ship flue gas purification device

Info

Publication number: CN111821804A
Application number: CN202010638750.7A
Authority: CN
Inventors: 陈鹏; 李刚; 严兴春
Original assignee: Chengxi Shipyard Co Ltd
Current assignee: Chengxi Shipyard Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-27

Abstract

The invention discloses a ship flue gas purification device which comprises a first treatment chamber, a combustion chamber, a second treatment chamber and a flue gas pipe, wherein the first treatment chamber is communicated with a ship host through the flue gas pipe, the first treatment chamber is communicated with the second treatment chamber through the flue gas pipe, the first treatment chamber is communicated with the combustion chamber, an adsorption mechanism is arranged on the first treatment chamber, a combustion mechanism is arranged in the combustion chamber, and a purification mechanism is arranged in the second treatment chamber; this boats and ships gas cleaning device through adsorption apparatus structure, not only can filter the fixed granule in the boats and ships waste gas, can also adsorb liquid composition such as oil mist in the boats and ships waste gas, through burning the mechanism, will adsorb saturated active carbon and through abundant burning, both can practice thrift limited space on the boats and ships, can thoroughly get rid of absorbent harmful gas and oil mist in the active carbon again, save subsequent processing expense.

Description

Ship flue gas purification device

Technical Field

The invention relates to the field of ships, in particular to a ship smoke purification device for a 70000-ton sawdust ship.

Background

The 70000 ton sawdust ship and other ocean-going ships generally adopt a large-sized low-speed two-stroke diesel engine as a main propulsion device, and because solid particles existing in fuel and fuel are not combusted sufficiently, a large amount of harmful substances such as oil mist, solid particles, carbon monoxide, nitrogen oxide and sulfur oxide exist in discharged gas, wherein the purification treatment technology for the nitrogen oxide and the sulfur oxide is very complete, and the treatment of the oil mist, the solid particles and the carbon monoxide is still not complete;

therefore, it is necessary to provide a new flue gas purification device for ships to solve the above problems.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a ship flue gas purification device which can effectively purify oil mist, solid particles and carbon monoxide in ship exhaust gas for a long time.

In order to achieve the above object, the technical solution of the present invention is to provide a flue gas purification device for a ship, which is arranged on a marine main engine and comprises a first treatment chamber, a combustion chamber, a second treatment chamber and a flue gas pipe, wherein the first treatment chamber is communicated with the marine main engine through the flue gas pipe, the first treatment chamber is communicated with the second treatment chamber through the flue gas pipe, the first treatment chamber is communicated with the combustion chamber, the first treatment chamber is provided with an adsorption mechanism, the combustion chamber is internally provided with a combustion mechanism, and the second treatment chamber is internally provided with a purification mechanism.

Further preferred technical scheme is, be equipped with main valve on the flue gas pipe, first process chamber has at least two, adsorption apparatus constructs including setting up runner, drive runner pivoted motor, setting in first process chamber bottom the exhaust conveyer belt and setting in first process chamber and with the handling pipe of flue gas pipe intercommunication, be equipped with 3 adsorption tubes on the runner, the intraductal active carbon that is filled with of adsorption.

Further preferred technical scheme still, it has regeneration unit still to communicate on the processing pipe, regeneration unit includes that two set up respectively at processing pipe both ends and with the dust exhaust pipe of processing pipe intercommunication, with the air-blower of dust exhaust pipe intercommunication and set up the secondary valve on the dust exhaust pipe.

Further preferred technical scheme still, handle the both ends of pipe and all be equipped with the filter screen.

Further preferred technical scheme still, combustion mechanism includes the feed inlet of being connected with the conveyer belt that wastes discharge, sets up the burning conveyer belt in the combustion chamber, set up in the combustion chamber and be located the burning spout of burning conveyer belt below, set up the air spout in the combustion chamber bottom, set up at the combustion chamber top and with the blast pipe of combustion chamber intercommunication, set up the boiler at the combustion chamber top and set up the dust fall pipe in combustion chamber bottom one side.

Further preferably, a filter plate is arranged in the exhaust pipe.

Further preferred technical scheme is, purify the mechanism including vertical setting in a plurality of purification chambeies in the second treatment chamber, with purify the chamber correspond and with purify the branch pipe of chamber intercommunication, communicate the flowmeter of branch pipe and flue gas pipe, set up the spacing unit at purification chamber top, be equipped with controlling means and the solenoid valve of being connected with the flowmeter electricity on the branch pipe, purify the chamber including purifying position and cooling position, purify the intracavity and be equipped with the catalysis pipe and set up the mobile unit on the catalysis pipe, spacing unit and catalysis pipe cooperation, the both ends of cooling position all communicate there is the cooling tube, it all communicates there is the flue gas pipe to purify position both ends.

Further preferred technical scheme still, spacing unit includes the fixture block of cooperating with the purification chamber and the cylinder that drives the fixture block and remove.

Further preferred technical scheme still, the mobile unit includes the closing plate of vertical setting, the cover is established on the catalysis pipe and with the fixed sleeve pipe of closing plate, set up the handle on the closing plate, fix the backup pad in the closing plate below and inject the guide rail that the backup pad removed.

The invention has the advantages and beneficial effects that:

1. by the adsorption mechanism, not only can fixed particles in the ship exhaust gas be filtered, but also liquid components such as oil mist in the ship exhaust gas can be adsorbed.

2. Through the cooperation of motor and runner, can realize the quick replacement of active carbon, save the change time.

3. Through regeneration unit, can carry out the reverse gas filling to the flue gas pipe, wash away the solid particle thing of piling up on the filter screen, realize the clean regeneration to the filter screen, two at least regeneration units mutually support moreover, can be on the normal not interval treatment of boats and ships waste gas purifies the basis, realize the clean regeneration to the filter screen in single first treatment chamber.

4. Through burning the mechanism, will adsorb saturated active carbon through abundant burning, both can practice thrift limited space on the boats and ships, can thoroughly get rid of absorbent harmful gas and oil mist in the active carbon again, save the subsequent processing expense.

5. Through purification mechanism, can be further carry out catalytic purification to nitric oxide, hydrocarbon in the boats and ships waste gas, and the purification chamber of a plurality of settings both can confirm the use number of purifying the chamber according to boats and ships waste gas flow, promote boats and ships waste gas's purifying effect and purification efficiency, when realizing again that the catalysis pipe changes, the incessant normal processing of boats and ships waste gas.

Drawings

FIG. 1 is a schematic structural diagram of a flue gas purification device for a ship according to the present invention;

FIG. 2 is a schematic structural diagram of an adsorption mechanism of the marine flue gas purification device of the present invention;

FIG. 3 is a schematic structural view of a rotating wheel of the flue gas purification device for a ship of the present invention;

FIG. 4 is a schematic structural diagram of a combustion mechanism of the marine flue gas purification apparatus of the present invention;

FIG. 5 is a schematic structural view of a second treatment chamber of the marine flue gas purification apparatus of the present invention;

FIG. 6 is a schematic structural view of a purifying mechanism of the flue gas purifying apparatus for a ship of the present invention;

in the figure: 1. the marine main engine comprises a marine main engine, 2, a first treatment chamber, 21, a motor, 22, a rotating wheel, 23, a filter screen, 24, a waste discharge conveying belt, 25, an adsorption position, 26, a feeding position, 27, a discharge position, 28, a treatment pipe, 3, a combustion chamber, 31, a feeding hole, 32, a combustion conveying belt, 33, a combustion nozzle, 34, an air nozzle, 35, an exhaust pipe, 36, a boiler, 37, a dust falling pipe, 4, a second treatment chamber, 41, a flowmeter, 42, a branch pipe, 43, an electromagnetic valve, 44, a purification cavity, 45, an air cylinder, 46, a fixture block, 47, a purification position, 48, a cooling position, 49, a cooling pipe, 50, a sleeve pipe, 51, a sealing plate, 52, a handle, 53, a supporting plate, 54, a guide rail, 55, a catalytic pipe, 5, a flue gas pipe, 6, a main valve, 7, a blower, 8, a dust discharge pipe and.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, a flue gas purification device for a ship is arranged on a marine main engine 1, and comprises a first treatment chamber 2, a combustion chamber 3, a second treatment chamber 4 and a flue gas pipe 5, wherein the first treatment chamber 2 is communicated with the marine main engine 1 through the flue gas pipe 5, the first treatment chamber 2 is communicated with the second treatment chamber 4 through the flue gas pipe 5, the first treatment chamber 2 is communicated with the combustion chamber 3, an adsorption mechanism is arranged on the first treatment chamber 2, a combustion mechanism is arranged in the combustion chamber 3, and a purification mechanism is arranged in the second treatment chamber 4.

As shown in fig. 2-3, be equipped with main valve 6 on the flue gas pipe 5, first treatment chamber 2 has at least two, adsorption mechanism is including setting up runner 22, drive runner 22 pivoted motor 21 in first treatment chamber 2, setting up the exhaust conveyer belt 24 in first treatment chamber 2 bottom and setting up in first treatment chamber 2 and the treatment pipe 28 that communicates with flue gas pipe 5, be equipped with 3 adsorption tubes on the runner 22, activated carbon is filled in the adsorption tube.

An air pump is arranged between the first treatment chamber 2 and the second treatment chamber 4, and provides negative pressure for the treatment pipe 28 in the first treatment chamber 2, so that the ship exhaust gas can normally pass through the adsorption pipe filled with the activated carbon.

An adsorption position 25, a feeding position 26 and a discharging position 27 are sequentially arranged in the first processing chamber 2, the adsorption position 25 is communicated with a processing pipe 28, the discharging position 27 is positioned above a waste discharging

conveying belt

24, 3 adsorption pipes are sequentially switched in the adsorption position 25, the feeding position 26 and the discharging position 27 under the drive of a motor 21, filter screens 23 are respectively arranged above and below the adsorption position 25, an opening is formed in the upper portion of the feeding position 26 to facilitate feeding, the lower portion of the feeding position 26 abuts against the bottom of the first processing chamber 2 to prevent active carbon in the feeding position 26 from falling off, a through hole is formed below a discharging opening 27 and is arranged above the waste discharging conveying belt 24, firstly, the adsorption pipe is connected with the active carbon at the feeding position 26, the motor 21 drives a rotating wheel 22 to rotate, so that the adsorption pipe provided with the active carbon moves to the adsorption position 25 to be communicated with the processing pipe 28, the processing pipe 28 can be communicated with ship waste gas, and the active carbon adsorbs a part of, after that motor 21 drive runner 22 rotates, and the adsorption tube removes to row material position 27, will adsorb on saturated active carbon discharges the waste discharge conveyer belt 24 to realize active carbon's quick replacement, promote adsorption efficiency.

In addition, according to a further preferred technical scheme, the processing pipe 28 is further communicated with a regeneration unit, and the regeneration unit comprises two dust exhaust pipes 8 which are respectively arranged at two ends of the processing pipe 28 and are communicated with the processing pipe 28, a blower 7 communicated with the dust exhaust pipes 8 and an auxiliary valve 9 arranged on the dust exhaust pipes 8.

The main valve 6 is closed, the auxiliary valve 9 is opened, the adsorption mechanism is disconnected with the flue gas pipe 5, the cleaning and regeneration process starts, the air blower 7 supplies air to the dust exhaust pipe 8, the filter screen 23 is enabled to receive reverse airflow, accumulated solid particles on the filter screen 23 are ejected from the dust exhaust pipe 8 to be removed, after the cleaning process is finished, the auxiliary valve 9 is closed, the main valve 6 is opened, and the adsorption mechanism is connected with the flue gas pipe 5 again.

In a further preferred technical scheme, both ends of the treatment pipe 28 are provided with filter screens 23.

Filter the effect that the filter screen 23 that is in handling 28 below mainly played the large granule solid particle in filtering boats and ships waste gas and prevent that the active carbon in the adsorption tube from spilling, the filter screen 23 that is in handling 28 top mainly plays and prevents that the active carbon in the adsorption tube from being taken out of the adsorption tube by the air current, avoids increasing the particulate matter content in the boats and ships waste gas.

As shown in fig. 4, the combustion mechanism includes a feed inlet 31 connected to the waste conveyor 24, a combustion conveyor 32 disposed in the combustion chamber 3, a combustion nozzle 33 disposed in the combustion chamber 3 and below the combustion conveyor 32, an air nozzle 34 disposed at the bottom of the combustion chamber 3, an exhaust pipe 35 disposed at the top of the combustion chamber 3 and communicating with the combustion chamber 3, a boiler 36 disposed at the top of the combustion chamber 3, and a dust falling pipe 37 disposed at one side of the bottom of the combustion chamber 3.

The active carbon with saturated adsorption enters the combustion conveying belt 32 through the feeding hole 31, the combustion nozzle 33 burns by using natural gas, and meanwhile, the air nozzle 34 sprays sufficient air into the combustion chamber 3, so that the harmful gas and the oil mist adsorbed by the active carbon and the active carbon are fully combusted, the limited space on a ship is saved, the harmful gas and the oil mist adsorbed by the active carbon can be thoroughly removed, the subsequent treatment cost is saved, heat can be supplied to the boiler 36, and the energy consumption is saved.

Further preferably, a filter plate is disposed in the exhaust pipe 35. The filter plate can block residual dust after the activated carbon is burnt.

As shown in fig. 5-6, the purification mechanism includes a plurality of purification cavities 44 vertically disposed in the second processing chamber 4, branch pipes 42 corresponding to the purification cavities 44 and communicating with the purification cavities 44, a flow meter 41 communicating the branch pipes 42 with the flue gas pipe 5, and a limit unit disposed at the top of the purification cavities 44, the branch pipes 42 are provided with a control device and an electromagnetic valve 43 electrically connected with the flow meter 41, the purification cavities 44 include a purification position 47 and a cooling position 48, the purification cavities 44 are provided with a catalytic pipe 55 and a moving unit disposed on the catalytic pipe 55, the limit unit is matched with the catalytic pipe 55, both ends of the cooling position 48 are both communicated with the cooling pipe 49, and both ends of the purification position 47 are both communicated with the flue gas pipe 5.

The catalyst pipe 55 is a DOC catalyst, i.e., an oxidation catalyst (DOC), and is a device installed in an exhaust line to convert carbon monoxide (CO) and Hydrocarbons (HC) in exhaust gas into harmless water and carbon dioxide through oxidation reaction.

The flowmeter 41 monitors the waste gas flow in the flue gas pipe 5 in real time, and sends information to the control device, the control device determines the opening number of the electromagnetic valves 43 according to the waste flow, and the purification cavities 44 arranged in a plurality of ways can determine the using number of the purification cavities 44 according to the waste gas flow of the ship, so that the purification effect and the purification efficiency of the waste gas of the ship are improved. When the catalytic tube 55 is saturated, and the catalytic tube 55 needs to be replaced, the electromagnetic valve 43 is closed, the limiting unit works, the catalytic tube 55 is loosened, a worker pulls the moving unit by using a tool, so that the catalytic tube 55 moves to the cooling position 48 to be cooled, and after the catalytic tube 55 is cooled for a period of time, the worker moves the moving unit, takes out the catalytic tube 55 and replaces with a new catalytic tube 55.

In addition, the limiting unit comprises a fixture 46 matched with the purifying cavity 44 and an air cylinder 45 driving the fixture 46 to move. The cylinder 45 drives the clamping block 46 to press downwards to clamp the catalytic tube 55.

Further preferably, the moving unit includes a sealing plate 51 vertically disposed, a sleeve 50 sleeved on the catalyst tube 55 and fixed to the sealing plate 51, a handle 52 disposed on the sealing plate 51, a support plate 53 fixed below the sealing plate 51, and a guide rail 54 for limiting the movement of the support plate 53. The support plate 53 is used to support the catalyst tube 55, the sleeve 50 is used to further define the position of the catalyst tube 55, and the sealing plate 51 is used to seal the purification chamber 44.

The working principle of the ship flue gas purification device is as follows: the marine main engine 1 works, the generated marine waste gas is introduced into the first treatment chamber 2 through the flue gas pipe 5, firstly, the adsorption mechanism works, the adsorption pipe is connected with the activated carbon at the feeding position 26, the motor 21 drives the rotating wheel 22 to rotate, so that the adsorption pipe filled with the activated carbon is moved to the adsorption position 25 to be communicated with the treatment chamber, the marine waste gas can be introduced into the treatment chamber, the activated carbon adsorbs a part of harmful gas and a large amount of oil mist in the flue gas, then, the motor 21 drives the rotating wheel 22 to rotate, the adsorption pipe is moved to the discharging position 27 to discharge the activated carbon with saturated adsorption onto the waste discharge conveyer belt 24, thereby realizing the quick replacement of the activated carbon and improving the adsorption efficiency, then, the combustion mechanism works, the waste discharge conveyer belt 24 sends the activated carbon with saturated adsorption onto the combustion conveyer belt 32 through the feeding hole 31, the combustion nozzle 33 burns by using natural gas, and meanwhile, the, make active carbon and the abundant burning of active carbon adsorbed harmful gas and oil mist, practice thrift limited space on the boats and ships, can thoroughly get rid of adsorbed harmful gas and oil mist in the active carbon again, save subsequent processing expense, still can be for boiler 36 heat supply, energy consumption is saved, then boats and ships waste gas passes through flue gas pipe 5 and gets into second treatment chamber 4, purification mechanism works, the waste gas flow in flue gas pipe 5 is monitored in real time to flowmeter 41, and give controlling means with information transmission, controlling means confirms the quantity of opening of solenoid valve 43 according to abandonment flow, the use number of purification chamber 44 has both been confirmed according to boats and ships waste gas flow to a plurality of purification chambers 44 that set up, the purifying effect and the purification efficiency of boats and ships waste gas are promoted. When the catalytic tube 55 is saturated, and the catalytic tube 55 needs to be replaced, the electromagnetic valve 43 is closed, the limiting unit works, the catalytic tube 55 is loosened, a worker pulls the moving unit by using a tool, so that the catalytic tube 55 moves to the cooling position 48 to be cooled, and after the catalytic tube 55 is cooled for a period of time, the worker moves the moving unit, takes out the catalytic tube 55 and replaces with a new catalytic tube 55.

This boats and ships gas cleaning device's advantage and beneficial effect lie in:

2. Through the cooperation of motor 21 and runner 22, can realize the quick replacement of active carbon, save the change time.

3. Through regeneration unit, can carry out reverse inflation to flue gas pipe 5, will pile up the solid particle thing on filter screen 23 and wash away, realize the clean regeneration to filter screen 23, two at least regeneration units mutually support moreover, can normally not interval treatment on the basis of purifying in the ship waste gas, realize the clean regeneration to filter screen 23 in single first treatment chamber 2.

5. Through purification mechanism, can be further carry out catalytic purification to nitric oxide, hydrocarbon in the boats and ships waste gas, and the purifying chamber 44 of a plurality of settings both can confirm the use number of purifying chamber 44 according to boats and ships waste gas flow, promote boats and ships waste gas's purifying effect and purification efficiency, when realizing again that catalytic tube 55 changes, boats and ships waste gas's incessant normal processing.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a boats and ships gas cleaning device, sets up on marine host computer, its characterized in that, including first process chamber, combustion chamber, second process chamber and flue gas pipe, first process chamber passes through flue gas pipe intercommunication, first process chamber and second process chamber with marine host computer and passes through flue gas pipe intercommunication, first process chamber and combustion chamber intercommunication, be equipped with adsorption apparatus structure on the first process chamber, be equipped with combustion mechanism in the combustion chamber, be equipped with purification mechanism in the second process chamber.

2. The ship flue gas purification device according to claim 1, wherein the flue gas pipe is provided with a main valve, the number of the first treatment chambers is at least two, the adsorption mechanism comprises a rotating wheel arranged in the first treatment chamber, a motor for driving the rotating wheel to rotate, a waste discharge conveyer belt arranged at the bottom of the first treatment chamber, and a treatment pipe arranged in the first treatment chamber and communicated with the flue gas pipe, the rotating wheel is provided with 3 adsorption pipes, and the adsorption pipes are filled with activated carbon.

3. The flue gas purification device of claim 2, wherein the treatment pipe is further communicated with a regeneration unit, and the regeneration unit comprises two dust exhaust pipes which are respectively arranged at two ends of the treatment pipe and are communicated with the treatment pipe, a blower which is communicated with the dust exhaust pipes, and an auxiliary valve which is arranged on the dust exhaust pipes.

4. The flue gas purification device of claim 2, wherein both ends of the treatment pipe are provided with a filter screen.

5. The flue gas purification device of claim 2, wherein the combustion mechanism comprises a feed inlet connected with the waste discharge conveyor belt, a combustion conveyor belt arranged in the combustion chamber, a combustion nozzle arranged in the combustion chamber and positioned below the combustion conveyor belt, an air nozzle arranged at the bottom of the combustion chamber, an exhaust pipe arranged at the top of the combustion chamber and communicated with the combustion chamber, a boiler arranged at the top of the combustion chamber, and a dust falling pipe arranged at one side of the bottom of the combustion chamber.

6. The marine flue gas purification device of claim 5, wherein a filter plate is arranged in the exhaust pipe.

7. The ship flue gas purification device according to claim 1, wherein the purification mechanism comprises a plurality of purification chambers vertically arranged in the second treatment chamber, branch pipes corresponding to the purification chambers and communicated with the purification chambers, flowmeters communicating the branch pipes with the flue gas pipes, and a limiting unit arranged at the tops of the purification chambers, wherein a control device and an electromagnetic valve electrically connected with the flowmeters are arranged on the branch pipes, the purification chambers comprise purification positions and cooling positions, catalytic pipes and moving units arranged on the catalytic pipes are arranged in the purification chambers, the limiting units are matched with the catalytic pipes, the cooling pipes are communicated with two ends of the cooling positions, and the flue gas pipes are communicated with two ends of the purification positions.

8. The marine flue gas cleaning device according to claim 7, wherein the limiting unit comprises a clamping block matched with the cleaning cavity and a cylinder driving the clamping block to move.

9. The flue gas purification device of claim 7, wherein the moving unit comprises a sealing plate vertically disposed, a sleeve pipe sleeved on the catalytic tube and fixed with the sealing plate, a handle disposed on the sealing plate, a support plate fixed below the sealing plate, and a guide rail for limiting the movement of the support plate.