Marine horizontal desulfurization device

Abstract

The utility model is applicable to the technical field of ship waste gas treatment, and provides a marine horizontal desulfurization device which comprises a horizontal reaction bin, a cooling mechanism, a settling mechanism and a filtering mechanism are sequentially arranged in the horizontal reaction bin, and a gas inlet pipe is arranged at one end of the horizontal reaction bin and close to the cooling mechanism. An exhaust pipe is arranged at the other end of the horizontal reaction bin and far away from the cooling mechanism; and a flow blocking mechanism is movably arranged in the horizontal reaction bin and between the cooling mechanism and the settling mechanism. By adopting the horizontal reaction bin which is transversely arranged, the gravity center of the ship can be lowered, and the stability of the ship is good; a cooling mechanism, a settling mechanism and a filtering mechanism are sequentially arranged in the horizontal reaction bin; the flue gas entering from the gas inlet pipe is cooled, sparks in waste gas are eliminated, the flue gas is settled, and fine sediment particles are filtered out in sequence; the flow choking mechanism is arranged between the cooling mechanism and the settling mechanism and is used for carrying out flow choking and speed reduction on the flue gas, so that the absorption reaction time of the flue gas and water mist is prolonged, and the desulfurization effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship exhaust gas treatment, and in particular relates to a ship-used horizontal desulfurization device. Background Art

[0002] Ship smoke emissions refer to the exhaust gas and particulate matter emissions generated by ships when burning fuel. These emissions include carbon dioxide, sulfur oxides, particulate matter, etc. Factors such as the type and quality of ship fuel, engine technology, speed and load will affect the ship's emissions and emission components. Ship smoke emissions have a negative impact on the air and marine ecological environment, so the International Maritime Organization (IMO) and other organizations have formulated a series of pollution control measures to reduce pollution emissions from ships at sea.

[0003] The desulfurization devices that are widely popular on the market are usually vertical structures, which require the construction of a new tower room or the modification and enlargement of the original ship chimney structure. In addition, because the vertical desulfurization tower is relatively high, generally more than 10 meters, the overall center of gravity is increased and the engineering workload is large; the exhaust gas inlet and outlet flow rate is fast, the reaction time is short, and the desulfurization effect is poor. Utility Model Content

[0004] The utility model provides a marine horizontal desulfurization device, which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A marine horizontal desulfurization device comprises a horizontal reaction chamber, in which a cooling mechanism, a sedimentation mechanism and a filtering mechanism are sequentially arranged; an air inlet pipe is arranged at one end of the horizontal reaction chamber and close to the cooling mechanism, and an exhaust pipe is arranged at the other end of the horizontal reaction chamber and away from the cooling mechanism; a flow blocking mechanism is movably arranged in the horizontal reaction chamber and between the cooling mechanism and the sedimentation mechanism.

[0007] As a further improvement, the cooling mechanism includes a first spray assembly and a second spray assembly arranged in the horizontal reaction chamber.

[0008] As a further improvement, the horizontal reaction chamber includes a reaction chamber body and a first conical mouth and a second conical mouth respectively arranged at both ends of the reaction chamber body, the movable end of the first conical mouth is connected to the air inlet pipe through a first flange, and the movable end of the second conical mouth is connected to the exhaust pipe through a second flange.

[0009] As a further improvement, a pressure testing device and a temperature testing device are provided on the inner side of the first tapered opening and the inner side of the second tapered opening.

[0010] As a further improvement, the flow blocking mechanism includes a smoke impact prevention plate movably arranged in the horizontal reaction chamber.

[0011] As a further improvement, a first cleaning mechanism is provided in the reaction chamber body and located on one side of the smoke impact protection plate; a second cleaning mechanism is provided in the reaction chamber body and located on one side of the sedimentation mechanism; and a third cleaning mechanism is provided in the reaction chamber body and located on one side of the filtering mechanism.

[0012] As a further improvement, a liquid level detection device is also provided in the horizontal reaction chamber.

[0013] As a further improvement, the angle formed between the bottom of the horizontal reaction chamber and the horizontal plane downward along the air inlet direction is a, 0°<a≤30°.

[0014] As a further improvement, a water outlet is provided at the bottom of the horizontal reaction bin.

[0015] As a further improvement, the horizontal reaction chamber is provided with a plurality of inspection windows.

[0016] The beneficial effects of the utility model are as follows: the utility model can lower the center of gravity of the ship and improve the stability of the ship by adopting a horizontally arranged horizontal reaction chamber; a cooling mechanism, a sedimentation mechanism and a filtering mechanism are arranged in sequence in the horizontal reaction chamber; the flue gas entering from the air intake pipe is cooled in sequence, sparks in the exhaust gas are eliminated, the flue gas is settled, and fine precipitation particles are filtered out; a flow blocking mechanism is arranged between the cooling mechanism and the sedimentation mechanism, which is used to block and slow down the flue gas, increase the absorption reaction time of the flue gas and the water mist, and enhance the dissolution effect of the sulfide in the flue gas and the seawater, thereby achieving a good desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a marine horizontal desulfurization device provided by an embodiment of the utility model;

[0019] Figure 2 It is a top view of a marine horizontal desulfurization device provided by an embodiment of the utility model;

[0020] Figure 3 It is a relative schematic diagram of the smoke impact protection plate and the first cleaning mechanism provided in an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1-horizontal reaction chamber; 2-cooling mechanism; 3-sedimentation mechanism; 4-filtering mechanism; 5-inlet pipe; 6-exhaust pipe; 7-blocking mechanism; 21-first spray assembly; 22-second spray assembly; 11-reaction chamber body; 12-first conical mouth; 13-second conical mouth; 14-first flange; 15-second flange; 8-pressure testing device; 9-temperature testing device; 71-anti-smoke impact plate; 101-first cleaning mechanism; 102-second cleaning mechanism; 103-third cleaning mechanism; 104-liquid level detection device; 105-water outlet; 106-inlet butterfly valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0024] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Reference Figure 1-3As shown, a marine horizontal desulfurization device comprises a horizontal reaction chamber 1, wherein a cooling mechanism 2, a settling mechanism 3 and a filtering mechanism 4 are sequentially arranged in the horizontal reaction chamber 1, an air intake pipe 5 is arranged at one end of the horizontal reaction chamber 1 and close to the cooling mechanism 2, and an exhaust pipe 6 is arranged at the other end of the horizontal reaction chamber 1 and away from the cooling mechanism 2; a flow blocking mechanism 7 is movably arranged in the horizontal reaction chamber 1 and between the cooling mechanism 2 and the settling mechanism 3. In this embodiment, a flue gas butterfly valve is also additionally arranged at the front end of the air intake pipe 5, and the air intake pipe 5 is connected to the horizontal reaction chamber 1 through the first flange 14; the main structure of the horizontal reaction chamber 1 is a rectangular box-type acid-resistant stainless steel reactor, and the first spray assembly 21 is arranged at the inlet position of the horizontal reaction chamber 1 to initially eliminate sparks and reduce the temperature of the high-temperature and high-heat flue gas; a second spray assembly 22 is arranged in the horizontal reaction chamber 1 and away from the inlet position for secondary spraying treatment to further cool the exhaust gas temperature. The flue gas is discharged into the atmosphere through the exhaust pipe 6 after being cooled and extinguished by the cooling mechanism 2, decelerated by the flow blocking mechanism 7, reacted and precipitated by the settling mechanism 3, and filtered by the filtering mechanism 4 for smoke particles.

[0026] The utility model adopts a horizontal reaction chamber 1 arranged horizontally, which can reduce the center of gravity of the ship and improve the stability of the ship; a cooling mechanism 2, a settling mechanism 3 and a filtering mechanism 4 are arranged in sequence in the horizontal reaction chamber 1; the flue gas entering from the air intake pipe 5 is cooled down in sequence, sparks in the exhaust gas are eliminated, the flue gas is settled and fine precipitation particles are filtered out; a flow blocking mechanism 7 is arranged between the cooling mechanism 2 and the settling mechanism 3, which is used to block and decelerate the flue gas, increase the absorption reaction time of the flue gas and the water mist, and improve the dissolution effect of the sulfide in the flue gas and the seawater, so as to achieve a good desulfurization effect. Compared with the desulfurization device with a vertical structure, its structure is simpler, the operator does not need to climb the straight ladder platform, the installation and maintenance are convenient, and the construction cost is reduced.

[0027] Furthermore, the cooling mechanism 2 includes a first spray assembly 21 and a second spray assembly 22 disposed in the horizontal reaction chamber 1. In this embodiment, the flue gas first passes through the first spray assembly 21 on the horizontal reaction chamber 1 to eliminate a small amount of sparks contained in the flue gas. After the sparks are eliminated, the flue gas is processed by the second spray assembly 22 to achieve secondary cooling of the flue gas.

[0028] Further, the horizontal reaction chamber 1 includes a reaction chamber body 11 and a first conical opening 12 and a second conical opening 13 respectively arranged at both ends of the reaction chamber body 11, the movable end of the first conical opening 12 is connected to the air inlet pipe 5 through a first flange 14, and the movable end of the second conical opening 13 is connected to the exhaust pipe 6 through a second flange 15. In this embodiment, the first conical opening 12 and the second conical opening 13 are both integrally formed with the reaction chamber body 11. The reaction chamber body 11 is a multi-prism structure, which is simpler to manufacture and install than a cylindrical structure, and is convenient for disassembling or assembling the spray assembly from the outside through an inspection window, and is convenient for later maintenance.

[0029] Further, a pressure test device 8 and a temperature test device 9 are provided inside the first conical opening 12 and inside the second conical opening 13. In this embodiment, the pressure test device 8 and the temperature test device 9 are arranged inside the first conical opening 12, respectively for monitoring the pressure and temperature before the flue gas reaction; the pressure test device 8 and the temperature test device 9 are arranged inside the second conical opening 13, respectively for monitoring the pressure and temperature after the flue gas reaction.

[0030] Furthermore, the flow blocking mechanism 7 includes a smoke impact prevention plate 71 movably disposed in the horizontal reaction chamber 1. In this embodiment, the smoke impact prevention plate 71 has a flow blocking effect, reduces the flue gas flow rate, increases the absorption reaction time of the flue gas and the water mist, and improves the dissolution effect of sulfide and seawater.

[0031] Furthermore, a first cleaning mechanism 101 is provided in the reaction chamber body 11 and located on one side of the smoke impact prevention plate 71; a second cleaning mechanism 102 is provided in the reaction chamber body 11 and located on one side of the settling mechanism 3; and a third cleaning mechanism 103 is provided in the reaction chamber body 11 and located on one side of the filtering mechanism 4. In this embodiment, the first cleaning mechanism 101, the second cleaning mechanism 102 and the third cleaning mechanism 103 can respectively perform water spraying and flushing on the smoke impact prevention plate 71, the settling mechanism 3 and the filtering mechanism 4 to ensure the cleanliness of the internal mechanisms and improve the service life.

[0032] Furthermore, a liquid level detection device 104 is also provided in the horizontal reaction bin 1. In this embodiment, the liquid level detection device 104 includes a plurality of liquid level gauges provided in the horizontal reaction bin 1, which are used to monitor the liquid level in the horizontal reaction bin 1 and determine whether the water outlet 105 is blocked.

[0033] Furthermore, the angle formed between the bottom of the horizontal reaction bin 1 and the horizontal plane downward along the air inlet direction is a, 0°<a≤30°; and a water outlet 105 is provided at the bottom of the horizontal reaction bin 1. In this embodiment, in order to completely discharge the washing water and reduce the accumulation of water, a stainless steel plate with an inclination is designed at the bottom of the horizontal reaction bin 1, and the inclination is the angle formed between the bottom of the horizontal reaction bin 1 and the horizontal plane downward along the air inlet direction, and a water outlet 105 is provided at the lowest position of the horizontal reaction bin 1, and gravity is used to completely discharge the washing water through the water outlet 105; preferably, 10°≤a≤20°.

[0034] Furthermore, a plurality of inspection windows are provided on the horizontal reaction bin 1. In this embodiment, a plurality of inspection windows are provided on the horizontal reaction bin 1, so that all the spray components inside the horizontal reaction bin 1 can be removed and maintained from the outside of the horizontal reaction bin 1, thereby reducing the inspection cost and labor intensity.

[0035] Working principle:

[0036] First, the seawater from outside the ship passes through the seawater filter, and the seawater supply pump pumps the water into the main seawater manifold of the marine horizontal desulfurization device. The seawater is connected to the cooling mechanism 2, the sedimentation mechanism 3, the filtering mechanism 4, the first cleaning mechanism 101, the second cleaning mechanism 102 and the spray assembly in the third cleaning mechanism 103 on the marine horizontal desulfurization device through the branch pipes on the manifold. The seawater is sprayed out by the nozzle arranged on the spray assembly, and water mist is formed in the reaction chamber body 11. After the main and auxiliary diesel engines of the ship are started, the fuel oil or heavy oil is burned to form a high-temperature and high-heat mixed gas mainly containing sulfur dioxide, carbon dioxide, etc. At this time, the air intake butterfly valve 106 arranged on the air intake pipe 5 is opened, and the high-temperature flue gas enters the horizontal desulfurization device through the air intake pipe 5. The air intake pipe 5 is connected to the horizontal reaction chamber 1 through the first flange 14; the flue gas is first treated by the first spray assembly 21 on the desulfurization device, the purpose is to eliminate a small amount of sparks contained in the flue gas, and after the sparks are eliminated, it is treated by the second spray assembly 22 to achieve secondary cooling of the flue gas; the gas after the secondary cooling passes through the smoke impact protection plate 71 to slow down the flow rate of the mixed gas. At this time, the low-temperature and low-speed flue gas mixed gas enters the sedimentation mechanism 3 for reaction. Because the flow rate of the mixed gas is slowed down, the dissolution time of the flue gas and the water mist in the reaction device is increased, and the action of the flue gas and the water mist is more sufficient; finally, the exhaust gas after washing passes through the last filtering mechanism 4 and is discharged to the atmosphere through the exhaust pipe 6. The horizontal desulfurization device is provided with a first cleaning mechanism 101, a second cleaning mechanism 102 and a third cleaning mechanism 103, which respectively spray and rinse the first cleaning mechanism 101, the settling mechanism 3 and the filtering mechanism 4; the smoke washing water, the washing water and the particulate impurities of the settling mechanism 3 converge to the bottom of the horizontal reaction bin 1, and through the inclined stainless steel bottom plate, the washing sewage can flow from high to low by gravity, and is connected to the outboard pipe through the water outlet 105 set at the lowest point for discharge. In order to ensure the reliable operation and safe use of the desulfurization device, a pressure test device 8, a temperature test device 9 and a liquid level detection device 104 are installed at both ends of the horizontal reaction bin 1 to facilitate monitoring of the initial pressure, initial temperature and liquid level state of the scrubbed flue gas; in addition, several inspection windows are provided to facilitate the inspection and cleaning of the internal components of the desulfurization device.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A marine horizontal desulfurization device, characterized in that: The invention comprises a horizontal reaction chamber (1), wherein a cooling mechanism (2), a sedimentation mechanism (3) and a filtering mechanism (4) are sequentially arranged in the horizontal reaction chamber (1); an air inlet pipe (5) is arranged at one end of the horizontal reaction chamber (1) and close to the cooling mechanism (2); and an exhaust pipe (6) is arranged at the other end of the horizontal reaction chamber (1) and away from the cooling mechanism (2); and a flow blocking mechanism (7) is movably arranged in the horizontal reaction chamber (1) and between the cooling mechanism (2) and the sedimentation mechanism (3).

2. The marine horizontal desulfurization device according to claim 1, characterized in that: The cooling mechanism (2) comprises a first spray assembly (21) and a second spray assembly (22) which are arranged in the horizontal reaction chamber (1).

3. The marine horizontal desulfurization device according to claim 1, characterized in that: The horizontal reaction chamber (1) comprises a reaction chamber body (11) and a first conical opening (12) and a second conical opening (13) respectively arranged at two ends of the reaction chamber body (11); the movable end of the first conical opening (12) is connected to the air inlet pipe (5) via a first flange (14); and the movable end of the second conical opening (13) is connected to the exhaust pipe (6) via a second flange (15).

4. The marine horizontal desulfurization device according to claim 3, characterized in that: A pressure testing device (8) and a temperature testing device (9) are provided on the inner side of the first conical opening (12) and the inner side of the second conical opening (13).

5. The marine horizontal desulfurization device according to claim 3, characterized in that: The flow blocking mechanism (7) comprises a smoke impact prevention plate (71) movably arranged in the horizontal reaction chamber (1).

6. The marine horizontal desulfurization device according to claim 5, characterized in that: A first cleaning mechanism (101) is provided in the reaction chamber body (11) and located on one side of the smoke impact prevention plate (71); a second cleaning mechanism (102) is provided in the reaction chamber body (11) and located on one side of the sedimentation mechanism (3); and a third cleaning mechanism (103) is provided in the reaction chamber body (11) and located on one side of the filtering mechanism (4).

7. The marine horizontal desulfurization device according to claim 1, characterized in that: A liquid level detection device (104) is also provided in the horizontal reaction chamber (1).

8. The marine horizontal desulfurization device according to claim 1, characterized in that: The bottom of the horizontal reaction chamber (1) forms an angle a with the horizontal plane downward along the air inlet direction, 0°<a≤30°.

9. The marine horizontal desulfurization device according to claim 1, characterized in that: The bottom of the horizontal reaction bin (1) is provided with a water outlet (105).

10. The marine horizontal desulfurization device according to claim 1, characterized in that: The horizontal reaction chamber (1) is provided with a plurality of inspection windows.

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