• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This device comprises a vertical chimney (30) for flue gas (F), which passes through a bottom wall (2) of the scrubber (1) and which includes, at the bottom, a sheath (31), which is made of a material resistant to a temperature of at least 350 ° C and which is arranged outside the scrubber. To limit the salt encrustation of this device, the chimney includes, in the upper part, a conduit (32) with multiple walls. This conduit comprises both an inner wall (32.1), which is made of a material resistant to a temperature of at least 350 ° C, and an outer wall (32.2), which is separated from the inner wall by an insulator ( 32.3). In addition, this duct is at least partially arranged inside the scrubber, extending lengthwise for at least 300 mm upwards from the bottom wall of the scrubber.
    公开号:FR3051436A1
    申请号:FR1654363
    申请日:2016-05-17
    公开日:2017-11-24
    发明作者:Bernard Siret；Frank Tabaries
    申请人:LAB SA；
    IPC主号:
    专利说明:

    Device for introducing exhaust fumes from a marine vessel engine into a scrubber
    The present invention relates to a device for introducing exhaust fumes from a marine vessel engine into a scrubber.
    Marine vessels, whether ocean liners or other vessels, primarily use fuel oil as fuel for diesel engines propelling them. This fuel contains up to 5% by weight of sulfur, most often between 0.5 and 3.5% by weight. During the combustion process in the engines, this sulfur is converted into sulfur dioxide (SO2). Therefore, the exhaust fumes of these engines are acidic and harmful. It is therefore necessary that the ship incorporates means to reduce sulfur dioxide emissions from these fumes before releasing them to the atmosphere.
    The most commonly proposed technology for capturing the sulfur dioxide present in the exhaust fumes on a ship is to wash these fumes with seawater. This technique is carried out by scrubbers using alkalinity seawater to neutralize sulfur dioxide, usually without the need for additional neutralization reagent. The exhaust fumes emitted by diesel engines are, however, very hot, their temperature up to 450 ° C at the engine outlet and can be much higher than 150 ° C at the inlet of the treatment plant, in particular desulfurization , of these fumes.
    In practice, a scrubber with seawater is operated according to two main modes, both known to those skilled in the art, namely: - an open-loop mode, in which a large amount of water of sea is admitted to the scrubber from where it is evacuated without recycling, before being rejected after a post-treatment, for example by filtration or cyclonic separation; and a closed-loop mode, in which the liquids leaving the scrubber are mainly recycled and usually supplemented with an additional alkaline reagent, only a minimum purge being evacuated.
    In closed loop mode, recycled liquids become highly concentrated, with the salt concentration in the water exceeding 200 g / l. In all cases, that is to say both in closed loop mode and open loop mode, saline solutions circulate in the scrubber, in particular in the quenching device, or quench, associated with the latter , whose function is to lower the flue gas temperature up to the operating temperature of the scrubber, this quenching device being moreover often integrated into the scrubber on the marine vessels in order to reduce as much as possible the size of the installation fume treatment. It is therefore clear that, within the scrubber and its quenching device, phenomena of crystallization or encrusting may appear. More specifically, saline constructions thus occur in the areas of the scrubber where the temperature varies greatly, especially in the quenching of fumes since it passes from a temperature above 150 ° C, where at a pressure between 90 and 110 kPa, liquid water can not exist at a temperature between 30 and 70 ° C where the water is liquid. Salt constructions also occur in areas where a wet-dry transition exists, especially since liquid spatter can reach a very hot wall. These saline constructions are also liable to occur by the temperature rise in contact with a hot wall, with salts, such as gypsum or anhydrite, which have a solubility which decreases when the temperature increases. In all cases, the presence of this encrustation by salt constructions disrupts or even prevents the operation of the scrubber.
    In order to better understand this problem of prior art flue gas treatment plants, reference can be made to FIG. 1, in which is shown diagrammatically a scrubber V in which exhaust fumes F from an engine of FIG. a ship are introduced into the bottom of the scrubber V, being brought to this scrubber by a vertical chimney C centered on the bottom of the scrubber. Leaving the chimney C, the fumes F encounter, inside the washer, a protective cone P that prevents any liquid from entering the chimney and upstream upstream of the latter, for reasons of security. At the top of the scrubber, dispensing means D dispense, for example by spraying, a washing liquid, constituted or based on seawater. In contact with the washing liquid, the flue gases F flowing from bottom to top at inside the scrubber V are first quenched and then purified, the sulfur dioxide they contain solubilizing in the washing liquid flowing from top to bottom, this washing liquid being discharged from the bottom of the scrubber, the case partially recycled at the top of the scrubber, not shown in Figure 1.
    Figure 2, which details schematically the lower part of the scrubber V, helps to understand the potential problem related to salt constructions mentioned above. The fumes to be treated F, which circulate in the chimney C, have a high temperature TF, of between 150 and 450 ° C., most often between 250 and 350 ° C. The tubular wall constituting the chimney C has its inner face C1, which then has a temperature greater than 150 ° C. At the bottom of the scrubber V, a little liquid L is present and covers the bottom wall of the scrubber, since only a small portion of the washing liquid introduced to the scrubber, not more than 5%, is evaporated. This liquid L is at the equilibrium temperature of the scrubber, denoted TL, which is usually between 30 and 70 ° C. and which can moreover be calculated by thermodynamics, by knowing the temperatures and compositions of the various liquid and In the open loop, the temperature TL is low, often between 20 and 35 ° C, while in a feeder loop, because the salinity of the washing liquid is higher and that recirculation of this liquid is realized, the temperature TL is higher, usually being between 50 and 70 ° C. Of course, external heat exchangers can also influence the value of the TL temperature.
    As shown diagrammatically in Figure 2, two phenomena occur. Firstly, splashing and splashing of the liquid L touch the external face CE of the wall of the chimney C: at this external face CE of the chimney, the water of the liquid L evaporates so that crystallizations and, in the long run, encrusting salt constructions are formed. Secondly, to the extent that certain salts, such as calcium sulphate, gypsum, anhydrite and sodium sulphate which has crystallized forms more or less hydrated according to the temperature, have a total solubility which decreases with temperature, these salts which are dissolved in the liquid L at the temperature TL are supersaturated when the temperature increases in contact with or in the immediate vicinity of the external face CE of the chimney C: these salts are deposited as constructions on the part, immersed in the liquid L, of the external face CE of the chimney C, the temperature of this external face CE being less than that of the inner face Cl but greater than that of the liquid L.
    Moreover, it will be noted that, at the level of the protective cone P, the same phenomenon may exist: the wall of this cone is heated by the fumes F while the liquid dripping on the upper face of this wall is much less hot. The risk of encrusting of the upper face of the protective cone P is therefore real, while being less marked than for the outer face CE of the chimney C to the extent that the protective cone P is located too high to be worried by the majority of splashing liquid L and where the protective cone is not the place of a dry-wet interface as between the chimney C and the liquid L. On the other hand, salt constructions in candles from the top to the bottom can create itself at the periphery of the protection cone P.
    The object of the present invention is to provide a device for introducing exhaust fumes into a scrubber, which, by a simple construction arrangement, can greatly limit the risk of salty encrusting of this device. For this purpose, the subject of the invention is a device for introducing exhaust fumes from an engine of a marine vessel into a scrubber, this device comprising a vertical chimney for supplying fumes, which passes through a wall of bottom of the scrubber and which includes, in the lower part, a sheath, which is made of a material resistant to a temperature of at least 350 ° C and which is arranged outside the scrubber, characterized in that the chimney includes, in part high, a multi-walled conduit, which leads: - includes both an inner wall, which is made of a material resistant to a temperature of at least 350 ° C, and a wall e> lower, which is separated from the inner wall by an insulator, and - is at least partially arranged inside the scrubber, extending in length for at least 300 mm upwards from the bottom wall of the scrubber.
    Thanks to the constructive arrangement of the invention, the part of the chimney, which is in contact with the liquid present in the bottom of the scrubber of the exhaust fumes emitted by the engine of a marine vessel, is formed by the outer wall of the duct constituting the top of this chimney: the risk of salt encrusting of the outer wall of this duct is strongly limited because, thanks to the thermal insulation provided by the insulation separating the outer wall from the inner wall of this led, the temperature of the outer wall is much lower than that of the inner wall, subjected to the high heat of the fumes to be treated. Furthermore, a particular embodiment of the device according to the invention, which will be detailed later, advantageously makes it possible to substantially attenuate the noise and / or to prevent the reverberation of the noise upstream: the invention brings thus an alternative or complementary solution to acoustic devices, of the silent type, which are commonly used to reduce the noise generated by diesel engines.
    According to additional advantageous features of the device according to the invention, taken individually or in any technically possible combination: - The insulation of the duct separates the inner and outer walls by a distance of between 10 and 300 mm, preferably between 50 and and 300 mm. The duct delimits, between its inner and outer walls, a closed chamber inside which the insulator is arranged, this insulation being, for example, air. - The duct insulation comprises at least one layer of insulation material, such as rock wool. - The inner wall of the duct is provided with through holes that connect the inside of the chimney and the layer of insulation. The duct is also arranged outside the scrubber, extending in length for at least one meter downwards from the bottom wall of the scrubber. - The inner wall of the duct is a perforated plate or a grid, which is secured to the outer wall of the duct so as to keep in place the layer of insulation. - The device further comprises a protective cone, which: - is arranged inside the washer, being placed above the downstream outlet of the chimney, so as to protect the chimney against the introduction of liquid while passing the flue gases out of the chimney, - has an apex angle of at least 120 °, and - comprises both a bottom wall, which is made of a material resistant to a temperature of at least 350 ° C, and an upper wall which is separated from the bottom wall by an insulator. - The protective cone insulation comprises at least one layer of insulating material, such as rockwool, while the lower wall of the protective cone is provided with through holes which connect the interior of the protective cone. scrubber and the insulation layer of the protective cone. - The through orifices of the inner wall of the conduit and / or the through holes of the bottom wall of the protective cone have an equivalent diameter of between 1 and 20 mm, preferably between 1 and 8 mm, preferably between 2 and 5 mm . The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings, in which: FIG. 1 is a diagrammatic view of a flue gas treatment plant, which belongs to the prior art and which has been described above; FIG. 2 is a view on a larger scale of the circled detail II of FIG. 1; and FIGS. 3 to 5 are views similar to FIG. 2, respectively showing three different embodiments of a device according to the invention.
    FIG. 3 shows a device for introducing flue gas which belongs to a treatment plant for purifying exhaust fumes F from a diesel engine propelling a marine vessel on which this installation of treatment. The fumes F contain inter alia sulfur oxides, in particular sulfur dioxide (SO 2). The device of FIG. 3 makes it possible to introduce the fumes F into a desulfurization scrubber 1 of which only a bottom wall 2 is visible in FIG.
    The scrubber 1, the embodiment of which is not limiting of the invention, is functionally or even structurally similar to the scrubber V described above with reference to FIG. 1. The scrubber 1 is thus generally in the form of a scrubber. a tower which, in use, extends in length vertically. At its base, the scrubber 1 has the bottom wall 2, from which rises a peripheral wall of the scrubber, ending in a crest: in use, the exhaust fumes F are introduced by the device of FIG. the scrubber 1, more precisely in the bottom region of the latter, and then, once inside this scrubber, they circulate, from the bottom region of the scrubber, upwards, to its top from where the fumes are evacuated. During their circulation inside the washer 1, the fumes are brought into contact with a washing liquid, which is constituted or based on seawater and which is distributed at the top of the washer 1 by ad hoc means, such as the means D mentioned previously with reference to FIG. 1: as explained above, the sulfur oxides of the flue gases F are then captured by the washing liquid, the latter flowing progressively downwards into the bottom region washer 1, from where it is evacuated. As shown in FIG. 3, a little of the washing liquid, noted L, remains present in the bottom of the scrubber 1, covering the bottom wall 2.
    The device of FIG. 3 comprises a chimney 10 making it possible to bring the fumes F from the outside to the inside of the scrubber 1, through its bottom wall 2. The chimney 10 extends in a substantially vertical manner , being centered on a geometric axis ZZ, and passes through the bottom wall 2, being arranged on either side of the latter. As shown in Figure 3, the downstream outlet of the chimney 10 is located in the bottom region of the washer 1, above and away from the bottom wall 2, while the upstream outlet of the chimney, which is not visible in the figures, is connected to the exhaust outlet of the aforementioned diesel engine. The admission of the flue gases F into the scrubber 1 via the vertical flue 10 is advantageous for the abovementioned treatment plant, embarked on a ship, since this arrangement occupies less space than a lateral introduction of flue gases into a scrubber, such lateral introduction being common for washing columns of power plants on land.
    To give an order of magnitude, and without this being likely to limit the invention, the internal diameter of the chimney 10 is between 1000 and 3000 mm, this value depending on the size of the washer 1. In practice, this diameter is chosen so that the fumes F circulate in the chimney at a speed typically between 10 and 50 m / s.
    According to the invention, the chimney 10 has a different structure for respectively its lower part and its upper part.
    Thus, as shown in FIG. 3, the chimney 10 comprises, at the bottom, a simple sheath 11, for example tubular and with a circular base, centered on the axis 2.-7. This sheath 11 extends in its entirety. outside the scrubber 1, being arranged below the bottom wall 2, at least for the portion of this sheath, which is turned towards the bottom wall 2. The sheath 11 is made of a material resistant to a temperature of at least 350 ° C.
    In its upper part, the chimney 10 comprises a duct 12 with multiple walls. This duct 12 thus comprises: an inner wall 12.1, which is made of a material resistant to a temperature of at least 350 ° C. and which extends in the extension upwards of the wall of the sheath 11, being for example material coming with the wall of this sheath, and - an outer wall 12.2, which surrounds the inner wall 12.1 over the entire periphery of the latter, while being separated from the inner wall 12.1 by an insulator 12.3.
    As can be clearly seen in FIG. 3, the duct 12 is arranged inside the scrubber 1 and extends in length upwards from the bottom wall 2 of the scrubber, and this over a height, denoted Hinl, being at least 300 mm.
    Thus, it is understood that the portion of the duct 12, which is in contact with the flue gas F circulating inside the chimney 10, consists exclusively of its inner wall 12.1, while the duct portion, which is in contact with both the liquid L covering the bottom wall 2 of the washer 1 and the splash from this liquid L, is constituted exclusively by its outer wall 12.2. In addition, although the inner wall 12.1 of the duct 12 is carried by the flue gas F at a temperature greater than 150 ° C., the insulator 12.3 interposed between this inner louver 12.1 and the outer wall 12.2 limits the temperature of the flue gas. the outer wall 12.2, avoiding heating of the latter under the effect of flue gas flowing inside the chimney 10. The outer wall 12.2 is thus advantageously maintained at a temperature below 70 ° C. The risk of encrusting of the stack 10 by the salts contained in the liquid L is significantly reduced, the temperature of the outer wall 12.2 of the conduit 11 remaining at a value close to or substantially equal to that of the temperature of this liquid L.
    In practice, the thermal insulation effect provided by the insulator 12.3 depends, among other things, on the nature of this insulator and on the thickness E of the insulator, this thickness corresponding to the distance separating one from the other. the inner and outer walls 12 and 12.2 of the duct 12. According to a preferred characteristic of the invention, the thickness E is between 10 and 300 mm.
    As regards the nature of the insulator 12.3, it is not limiting of the invention. In the embodiment of Figure 3, the insulator 12.3 is air which is trapped in a closed chamber, defined by the conduit 12 between its inner walls 12.1 and 12.2 outer. Alternatively, rather than air, the aforementioned closed chamber may contain an insulating material, such as rockwool or the like.
    Furthermore, insofar as the outer wall 12.2 of the conduit 12 is in contact with the liquid L which is loaded with chlorides and which is sometimes acidic, this outer wall 12.2 is made of a material resistant to corrosion, in particular a metal alloy like 354SMO alloy. In practice, this alloy can be used to make both the outer 12.2 and inner 12.1 walls of the duct 12 and the sheath 11.
    The device of FIG. 4 is functionally similar to that of FIG. 3 and thus comprises a vertical chimney 20 for feeding flue gases F inside the scrubber 1. A lower part of the flue 20 consists of a sheath 21 , which is similar to the sheath 11. An upper part of the chimney 20 consists of a duct 22 with multiple walls, which passes through the bottom wall 2 of the washer 1 and which extends lengthwise upwards from this wall bottom 2 at a Hint height of at least 300 mm.
    The duct 22 comprises inner and outer walls 22 and 22.2, which are functionally similar to the walls 12.1 and 12.2 of the duct 12, the inner and outer walls 22 and 22.2 being disjointed from one another and separated by an insulator 22. the form of at least one layer of insulating material, such as rockwool or the like.
    In practice, considerations similar to those discussed above for insulation 12.3 apply to the thickness E of insulation 22.3. Furthermore, the sheath 21 and the inner 22.1 and outer walls 22.2 of the duct 22 are for example made of a metal alloy, resistant to both corrosion and at a temperature of at least 350.degree. It is not necessary for these elements 21, 22, and 22.2 to be made of the same material as long as, on the one hand, the material of the outer wall 22.2 of the conduit 22 resists corrosion and, on the other hand, the material the sheath 21 and the inner wall 22.1 of the duct 22 withstand a temperature of at least 350 ° C.
    The device of Figure 5 is functionally similar to the devices of Figures 3 and 4, while providing an additional function, namely an acoustic insulation function, and coupled to the thermal insulation function described so far.
    To do this, the device of FIG. 5 comprises a vertical chimney 30 for supplying the flue gases F inside the scrubber 1, which, at the bottom, includes a sheath 31, similar to the sheaths 11 and 21, and upper part, a conduit 32 with multiple walls.
    As shown in Figure 5, the conduit 32 passes through the bottom wall 2 of the washer 1, extending on either side of the bottom wall. The conduit 32 is thus partially arranged inside the washer 1, extending lengthwise upwards from the bottom wall 2 over a height Hint of at least 300 mm. And the conduit 32 is partially arranged outside the washer 1, extending lengthwise downward from the bottom wall 2, to a height Hext of at least 1 m. In practice, the total height of the duct 32 can reach several meters, for example 5 m.
    The duct 32 comprises an inner wall 32.1 and an outer wall 32.2, separated from each other by an insulator 32.3 comprising at least one layer of insulating material, such as rockwool or the like. It is understood that, at its terminal portion arranged inside the scrubber 1, the duct 32 avoids the salty encrustation of the chimney 30, for the reasons previously developed in connection with the ducts 12 and 22.
    As for the portion of the duct 32 arranged outside the scrubber 1, it makes it possible to attenuate the noise generated by the diesel engine from which the exhaust fumes originate. For this purpose, the acoustic absorption properties of 32.3 insulation are used, if necessary the choice of insulation material for insulation 32.3 which, in addition to providing thermal insulation between the inner 32.1 and outer 32.2, provides acoustic absorption Absorbent in particular frequencies above 160 Hz. The insulation material may advantageously be porous and / or have a thickness E between 50 and 300 mm. In addition, for the insulation 32.3 to attenuate the noise by absorbing the medium and high frequencies, the inner wall 32.1 is provided with through orifices 33 which connect the interior of the chimney 30 and the layer or layers of material. insulation constituting insulation 32.3. These through orifices 33 must not be too small, otherwise they could clog, or too big otherwise the insulation material of the insulation 32.3, often fragile or fibrous, could escape: the equivalent diameter of the orifices 33 is thus advantageously between 1 and 20 mm, preferably between 1 and 8 mm, more preferably between 2 and 5 mm. Furthermore, by extending over a meter below the bottom wall 2 of the washer 1, the duct 32 contributes significantly to the sound attenuation.
    According to a practical and economical form of construction, which is shown in FIG. 5, the inner wall 32.1 of the duct 32, which is necessarily made of a material resistant to a temperature of at least 350 ° C., consists of a plate perforated or grid, which is secured to the outer wall 32.2 of the duct 32 so as to keep in place the layer or layers of insulating material of the insulation 32.3. In addition, this outer wall 32.2, which must necessarily withstand corrosion at least for its end portion arranged inside the washer 1, provides the bulk of the mechanical strength of the conduit 32, being able, if necessary, to be performed in the extension of the sheath 31 and be integral with this sheath.
    According to an optional and advantageous arrangement, which is shown in FIG. 5, the device of this FIG. 5 comprises, in addition to the chimney 30, a protective cone 40 whose function is to protect the downstream outlet of the chimney 30 against the introduction of liquid into the chimney, while allowing the flue gases F to come out of the chimney. Thus, the protective cone 40, which is arranged inside the scrubber 1 by being placed above the downstream outlet of the chimney 30, prevents any liquid falling or dripping from the region in line with the downstream outlet of the outlet. chimney 30 to enter by gravity into the chimney, while allowing the smoke F leaving the chimney to bypass it to spread inside the washer 1. The protective cone 40 is important in the sense that, for reasons of safety, an introduction of liquid into the chimney 30, with a possible rise of liquid to the diesel engine from which fumes escape F, can not be tolerated.
    To limit the pressure drop at the protective cone 40, the latter has a large aperture embodiment, with an apex angle of at least 120 °, being arranged coaxially with the trench 30.
    In order to avoid the salty encrusting of the protective cone 40, the latter is constructed in a manner similar to the duct 32 of the chimney 30. More specifically, the protective cone 40 comprises at the same time: a lower wall 40.1, which is made of a material resistant to a temperature of at least 350 ° C so as to withstand without damage the flow of fumes F which, when leaving the chimney 30, meet this bottom wall 40.1, and - an upper wall 40.2, on which flows towards the bottom of the washing liquid falling from inside the scrubber 1 and which, to avoid the appearance of saline constructions on this upper wall 40.2, is separated from the bottom wall 40.1 by an insulator 40.3 similar, at least functionally, to the insulation 32.3.
    Moreover, in order for the protection cone 40 to prevent the reverberation of the noises downwards, coming from the motor from which the smoke F escapes, the insulator 40.3 comprises at least one layer of insulating material, such as rockwool or the like, and its bottom wall 40.1 is provided with through orifices 41 which communicate the interior of the scrubber 1 and this or these layers of insulating material. In practice, following considerations similar to those described above, the dimensioning of the orifices 41 is advantageously similar to that of the orifices 33 and the bottom wall 40.1 of the protective cone 40 can be made in the form of a perforated plate or of a grid retained against the upper wall 40.2 holding in place between them or the layers of the insulation 40.3.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1A device for introducing exhaust fumes from a marine vessel engine into a scrubber, this device comprising a vertical chimney (10; 20; 30) for flue gas (F) passing through a bottom wall ( 2) the washer (1) and which includes, in the lower part, a sheath (11; 21; 31), which is made of a material resistant to a temperature of at least 350 ° C and which is arranged outside of the scrubber, characterized in that the chimney (10; 20; 30) includes, in the upper part, a duct (12; 22; 32) with multiple walls, which duct: - comprises both an inner wall (12.1; 22.1 32.1), which is made of a material resistant to a temperature of at least 350 ° C, and an outer wall (12.2; 22.2; 32.2), which is separated from the inner wall by an insulator (12.3; 22.3; 32.3). ), and - is at least partially arranged inside the scrubber (1), extending in length over at least 300 mm to the top from the bottom wall (2) of the scrubber.
    [2" id="c-fr-0002]
    2, - Device according to claim 1, characterized in that the insulator (12.3; 22.3; 32.3) of the conduit (12; 22; 32) separates the inner walls (12.1; 22.1; 32.1) and outer (12.2; 22.2; 32.2) with a distance (E) of between 10 and 300 mm, preferably between 50 and 300 mm.
    [3" id="c-fr-0003]
    3. - Device according to one of claims 1 or 2, characterized in that the conduit (12) defines, between its inner walls (12.1) and outer (12.2), a closed chamber inside which is arranged l insulator (12.3), this insulation being for example air.
    [4" id="c-fr-0004]
    4, - Device according to any one of the preceding claims, characterized in that the insulator (12.3; 22.3; 32.3) of the conduit (12; 22; 32) comprises at least one layer of insulating material, such as rock wool.
    [5" id="c-fr-0005]
    5. - Device according to claim 4, characterized in that the inner wall (32.1) of the duct (32) is provided with through holes (33) which communicate between the inside of the chimney (30) and the layer of insulation (32.3).
    [6" id="c-fr-0006]
    6. - Device according to claim 5, characterized in that the duct (32) is also arranged outside the washer (1), extending in length over at least one meter down from the bottom wall (2) washer.
    [7" id="c-fr-0007]
    7. - Device according to one of claims 5 or 6, characterized in that the inner wall (32.1) of the duct (32) is a perforated plate or a grid, which is secured to the outer wall (32.2) of the duct. to keep in place the layer of insulation (32.3).
    [8" id="c-fr-0008]
    8. - Device according to any one of the preceding claims, characterized in that the device further comprises a protective cone (40), which: - is arranged inside the washer (1), being placed at- above the downstream outlet of the chimney (30), so as to protect the chimney against the introduction of liquid while allowing the fumes (F) leaving the chimney to pass, - has an apex angle of at least 120 °, and - comprises both a bottom wall (40.1), which is made of a material resistant to a temperature of at least 350 ° C, and an upper wall (40.2) which is separated from the bottom wall by an insulator (40.3 ).
    [9" id="c-fr-0009]
    9. - Device according to claim 8, characterized in that the insulator (40.3) of the protective cone (40) comprises at least one layer of insulating material, such as rock wool, and in that the lower wall (40.1) of the protective cone (40) is provided with through-holes (41) which connect the interior of the scrubber (1) and the layer of the insulator (40.3) of the protective cone.
    [10" id="c-fr-0010]
    10. - Device according to any one of claims 5 to 7 and 9, characterized in that the through holes (33) of the inner wall (32.1) of the duct (32) and / or the through holes (41) of the lower wall (40.1) of the protective cone (40) have an equivalent diameter of between 1 and 20 mm, preferably between 1 and 8 mm, preferably between 2 and 5 mm.
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    WO2011131917A1|2011-10-27|Container for condensing the products of bleeding a steam system and associated system for treating the products of bleeding
    同族专利:
    公开号 | 公开日
    KR20190007492A|2019-01-22|
    FR3051436B1|2018-06-22|
    CN109154222B|2021-05-11|
    WO2017198653A1|2017-11-23|
    KR102326801B1|2021-11-15|
    CN109154222A|2019-01-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5201919A|1991-12-17|1993-04-13|Inline Scrubber Corporation|Integral in-line gas scrubber|
    US20040255779A1|2001-11-30|2004-12-23|Andrew Trivett|Method and apparatus for scrubbing gases, using mixing vanes|
    US20100266472A1|2008-06-13|2010-10-21|Sigan Peng| Ship Flue Gas Scrubbing Equipment And Method|
    WO2011032275A1|2009-09-18|2011-03-24|Horizon Oilfield Solutions Inc.|Systems and methods for concentrating waste water fluids|
    FI123737B|2012-02-13|2013-10-15|Oy Langh Ship Ab|Method for treating ship-source contaminants with a scrubber|
    KR101567127B1|2012-09-17|2015-11-06|한온시스템 주식회사|Air blower for fuel cell vehicle|
    CN203363462U|2013-06-09|2013-12-25|山西太钢不锈钢股份有限公司|Gas inlet pipe connecting high-temperature gathered fuel gas and spray tower|
    KR20160049782A|2014-10-28|2016-05-10|김용섭|Scrubber|
    CN105526429A|2016-01-14|2016-04-27|中国瑞林工程技术有限公司|Air inlet sleeve and washing tower provided with air inlet sleeve|CN108974247B|2018-04-04|2021-05-04|沪东中华造船有限公司|Marine washing tower bracing fixing device and fixing method|
    FR3086188B1|2018-09-26|2020-12-18|Lab Sa|DEVICE FOR PROTECTING THE ADMISSION OF FUMES INTO A WASHER, AS WELL AS A PURIFICATION SYSTEM INCLUDING SUCH A PROTECTIVE DEVICE|
    KR20210026909A|2019-09-02|2021-03-10|양동욱|System for matching daily job and method thereof|
    法律状态:
    2017-05-17| PLFP| Fee payment|Year of fee payment: 2 |
    2017-11-24| PLSC| Publication of the preliminary search report|Effective date: 20171124 |
    2018-04-27| PLFP| Fee payment|Year of fee payment: 3 |
    2019-04-30| PLFP| Fee payment|Year of fee payment: 4 |
    2020-04-21| PLFP| Fee payment|Year of fee payment: 5 |
    2021-04-14| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1654363|2016-05-17|
    FR1654363A|FR3051436B1|2016-05-17|2016-05-17|DEVICE FOR INTRODUCING EXHAUST FUMES FROM A MARINE SHIP ENGINE IN A WASHER|FR1654363A| FR3051436B1|2016-05-17|2016-05-17|DEVICE FOR INTRODUCING EXHAUST FUMES FROM A MARINE SHIP ENGINE IN A WASHER|
    CN201780029968.9A| CN109154222B|2016-05-17|2017-05-16|Device for conveying exhaust fumes from marine vessel engines into a scrubber|
    PCT/EP2017/061707| WO2017198653A1|2016-05-17|2017-05-16|Device for feeding exhaust fumes of a marine vessel engine into a scrubber|
    KR1020187036437A| KR102326801B1|2016-05-17|2017-05-16|A device that supplies the exhaust gas of a ship engine to the scrubber|
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