WO2018176371A1 - 处理烟气的装置和系统 - Google Patents
处理烟气的装置和系统 Download PDFInfo
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- WO2018176371A1 WO2018176371A1 PCT/CN2017/078963 CN2017078963W WO2018176371A1 WO 2018176371 A1 WO2018176371 A1 WO 2018176371A1 CN 2017078963 W CN2017078963 W CN 2017078963W WO 2018176371 A1 WO2018176371 A1 WO 2018176371A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- the present invention relates to an apparatus and system for treating flue gas, and in particular to an apparatus and system for removing particulate matter contained in flue gas in a wet flue gas desulfurization system.
- particulate matter (Particulate Matters, hereinafter referred to as "PM") released from Wet Flue Gas Desulfurization (hereinafter referred to as “WFGD”) will cause air pollution.
- PM particulate Matters
- WFGD Wet Flue Gas Desulfurization
- WESP Wet Electro-Static Precipitator
- an apparatus for treating flue gas comprising particulate matter
- the apparatus being located in a wet flue gas desulfurization system
- the apparatus comprising: at least one particulate matter removal component for removing the particulate matter
- Each of the at least one particulate matter removing assembly includes: a plurality of panel units, each of the panel units being stacked one another along the flow direction of the flue gas and facing the flow direction of the flue gas relative to a horizontal plane bend; and a fluid passage defined by the plurality of panel units for flowing the flue gas and the particulate matter separated from the flue gas in the fluid passage, the flue gas And the particulate matter flows in substantially opposite directions in the fluid passage.
- a wet flue gas desulfurization system for treating flue gas comprises: means for removing sulfur in the flue gas; and means comprising the aforementioned particulate removal assembly for removing particulate matter in the flue gas.
- FIG. 1 is a schematic structural view of an apparatus for treating flue gas according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of a particulate matter removing assembly according to a first embodiment of the present invention
- Figure 3 is a plan view of Figure 2;
- FIG. 4 is a schematic structural view of a particulate matter removing assembly according to a second embodiment of the present invention.
- Figure 5 is a plan view of Figure 4.
- Figure 6 is a schematic view showing the structure of a particulate matter removing assembly according to a third embodiment of the present invention.
- Figure 7 is a schematic structural view of a particulate matter removing assembly according to a fourth embodiment of the present invention.
- Figure 8 is a schematic view showing the structure of a particulate matter removing assembly according to a fifth embodiment of the present invention.
- FIG. 9 is a schematic structural view of a particulate matter removing assembly according to a sixth embodiment of the present invention.
- Figure 10 is a side view of Figure 9;
- Figure 11 is a schematic view showing the structure of a particulate matter removing assembly according to a seventh embodiment of the present invention.
- Figure 12 is a side view of Figure 11;
- Figure 13 is a schematic structural view of an apparatus for treating flue gas according to still another embodiment of the present invention.
- Figure 14 is a plan view of Figure 13;
- Figure 15 is a schematic view showing the structure of a wet flue gas desulfurization system including the apparatus for treating flue gas shown in Figure 13 .
- the present invention relates to a device for treating flue gas, which comprises an improved structure for removing particulate matter in the flue gas, so that work efficiency is effectively improved, and the improved structure also eliminates additional equipment and simplifies processing.
- the process has resulted in an effective reduction in production and manufacturing costs.
- FIG 15 is a schematic view showing the structure of a wet flue gas desulfurization system (WFGD) 1 according to an embodiment of the present invention.
- WFGD wet flue gas desulfurization system
- the apparatus 10 for treating flue gas is installed in the main body 11 of the WFGD 1, so that the apparatus 10 for treating the flue gas and the WFGD 1 are in an integrated system.
- the apparatus 10 for treating flue gas includes at least one particulate removal assembly 100, 100' in which the apparatus 10 for treating flue gas is shown to include a particulate removal assembly 100, 100'.
- Each particulate removal assembly 100, 100' includes a plurality of panel units 101, 101'.
- the plate units 110, 110' are sequentially arranged in a row along the flow direction 21 of the flue gas 2, in which the flow direction 21 of the flue gas 2 is substantially from bottom to top.
- Each of the panel units 101, 101' which are sequentially stacked is formed into a flow passage through which the flue gas 2 flows.
- Each of the panel units 101, 101' faces the said The flow direction of the flue gas is curved relative to the horizontal plane to form an included angle 106 of approximately 120 degrees to 170 degrees.
- the plurality of stacked panel units 101, 101' are substantially parallel to each other.
- the panel unit is in the form of a pair of panels, the plurality of pairs of panels comprising a first panel subunit 111 and a second panel subunit 112, a first panel subunit 111 and The two-plate sub-units 112 are arranged side by side with respect to the horizontal direction, and are bent side by side toward the flow direction of the flue gas to form an included angle 106 of about 120 to 170 degrees.
- the pairs of panels of each stacked arrangement are generally parallel to each other.
- the first and second panel sub-units 111, 112 are each a unitary panel that traverses the body 11 of the WFGD 1. In some embodiments, the first and second panel sub-units 111, 112 are each a collection of panels. In some embodiments, each panel has substantially equal dimensions, such as size, material, and the like. In some embodiments, each of the panels may be a flat panel, a curved panel, or a combination of the two.
- the pair of panels includes a first pair of panels 110, a second pair of panels 120, and a third pair of panels 130.
- the first distance is zero or close to zero
- the second distance is greater than the first distance
- the third distance is greater than the second distance.
- the third pair of panels 130, the second pair of panels 120, and the first pair of panels 110 are sequentially stacked in a flow direction of the flue gas. As shown in FIG.
- the particulate matter removing assembly 100 may include two sets of third pair of plates 130, which are arranged in a row along the flow direction of the flue gas, that is, from bottom to top.
- the two pairs of plates 120 and the first pair of plates 110 are also arranged in the upper and lower rows along the flow direction of the flue gas.
- the particulate removal assembly 100 can also include three sets of second pair of panels 120 and first pair of panels that are arranged in a row along the flow direction of the flue gas, ie, from bottom to top. 110.
- the groups are also arranged up and down along the flow direction of the flue gas.
- Figures 4 and 5 illustrate a particulate removal assembly 100' of the second embodiment.
- each of the panel units 101' is curved with respect to the horizontal plane toward the flow direction of the flue gas to form an included angle 106 of about 120 to 170 degrees.
- several The stacked panel units 101' are substantially parallel to each other.
- each of the panel units 101' is a unitary panel.
- each monolithic panel has substantially equal gauges, such as materials and the like.
- each integral panel may be a flat panel, a curved panel, or a combination of the two.
- each integral panel includes a first panel unit 110' and a second panel unit 120'.
- the first panel unit 110' is substantially circular, including but not limited to a perfect circle
- the second panel unit 120' has a hollow annular shape
- the second panel unit 120' the first panel unit 110'
- the flow direction of the flue gas is sequentially stacked.
- the particulate removal assembly 100' includes three sets of second panel units 120' and first panel units 110' that are sequentially stacked in a flow direction along the flue gas, that is, from bottom to top, each of which The groups are also arranged up and down along the flow direction of the flue gas.
- each of the unitary panels may further include a third panel unit (not shown), the third panel unit having a hollow annular shape, wherein the empty area is approximately hollow of the second panel unit 120'
- the area, the particulate matter removing assembly 100' may include two sets of third plate units, second plate units 120' and first plates arranged in a flow direction along the flue gas, that is, stacked from bottom to top.
- the unit 110' is also arranged in an up-and-down arrangement between the groups along the flow direction of the flue gas.
- the plate unit 101, 101' may be provided with a gas flow path member 102, which is disposed through the plate unit 101, 101', so that the flue gas 2 can flow from the middle However, it is not blocked by the droplets and particulate matter contained in the flue gas 2, and the pressure on the entire apparatus 10 can be reduced.
- the gas flow path member 102 is specifically a through hole having an opening ratio of about 20% to 40%, and the diameter of each of the through holes is substantially in the range of 10 mm to 20 mm, so that the dust removal of the entire device 10 is performed. Efficiency and pressure are optimized.
- the gas flow path component 102 is specifically elongated (not shown).
- the gas flow path element 102 is specifically quadrangular (not shown).
- the plate unit 101, 101' can be provided with a first guiding element 103, which is located on the surface of the plate unit 101, 101' facing away from the flow direction 21 of the flue gas, ie Located on the upper surface of the panel unit 101, 101' shown in Fig. 6, to guide the flue gas 2 entering the fluid passage defined by the two adjacent stacked panel units to continuously flow to the next two adjacent Between the fluid channels defined by the stacked panel units, or to guide into the hollow region The flue gas in the fluid passage defined by the generally annular plate unit continuously flows into the fluid passage defined by the substantially annular plate unit having the hollow region until the entire device 10 flows out.
- a first guiding element 103 which is located on the surface of the plate unit 101, 101' facing away from the flow direction 21 of the flue gas, ie Located on the upper surface of the panel unit 101, 101' shown in Fig. 6, to guide the flue gas 2 entering the fluid passage defined by the two adjacent stacked panel units to continuously flow to the next two adjacent Between the fluid channels defined by the
- the first guiding element 103 can be located in the second pair of panels 120, the third pair of panels 130, or both the second pair of panels 120 and the third pair of panels 130 . In some embodiments, the first guiding elements 103 can be respectively located on the first and second panel subunits of the second pair of panels 120 and the first and second panels of the first pair of panels 110 On the subunit. In some embodiments, the first guiding element 103 is adjacent to an intermediate region of the first and second panel sub-units arranged side by side at an angle.
- the first guiding element 103 can be located at the second panel unit 120', the third panel unit, or both the second panel unit 120' and the third panel unit. In some embodiments, the first guiding element 103 is adjacent to the hollow region of the second panel unit 120' and the hollow region of the third panel unit.
- the first guiding element 103 may be additionally mounted on the panel unit 101, 101' or may be integrally formed with the panel unit 101, 101'.
- the first guiding element 103 is specifically a vortex-type guide such that the flue gas 2 forms a vortex to enhance the inertial collision between the PM contained in the flue gas 2 and the droplet 101 and the plate member 101.
- the plate unit 101, 101' may be provided with a second guiding element 104 located at the edge of the free end of the plate unit 101, 101', the edge facing the wet smoke
- the inner wall 111 of the main body 11 of the gas desulfurization system 1 extends, and further, a gap is left between the edge and the inner wall 111.
- the second guiding element 104 can be located in the first pair of panels 110, the second pair of panels 120, or both in the first pair of panels 110 and the second pair of panels. Item 120.
- the second guiding element 104 can be located at the first panel unit 110', the second panel unit 120', or both at the first panel unit 110' and the second panel unit 120'.
- the second guiding element 104 is shown in the first pair of plates 110, the first plate unit 110' and in a concave cavity.
- the second guiding element 104 is used to collect droplets of particulate matter generated in the device 10.
- the inner wall 111 of the main body 11 of the wet flue gas desulfurization system 1 has a plurality of third guiding members 107 extending toward the panel unit 101, 101'. Further, the third guiding member 107 Extending against the flow direction of the flue gas with respect to the horizontal plane, in this illustration, ie obliquely extending downwards with respect to the horizontal plane, for guiding the separated particles or droplets entrained with particles along the plate unit The surface of 101, 101' is dropped to prevent it from escaping on the inner wall 111 of the body 11 of the wet flue gas desulfurization system 1.
- the third guiding element 107 is a baffle.
- the plate unit 101 , 101 ′ can be provided with a spray element 105 mounted on at least one plate unit 101 , 101 ′.
- the side of the intermediate portion facing away from the flow direction 21 of the flue gas that is, is disposed below the intermediate portion of the panel unit 101, 101' shown in FIG. 9 or is mounted on the panel unit 101 shown in FIG.
- the water mist is sprayed along the flow direction of the flue gas 2, so that the particulate matter is better taken away from the flue gas 2, and at the same time, it can be washed and attached to the panel unit 101, 101. 'Particles on the '.
- the spray element 105 is mounted below or above each intermediate portion of the set including the second pair of panels 120 and the first pair of panels 110.
- the spray element 105 is specifically a rod 152 on which a plurality of spray heads 151 can be disposed along the axial direction.
- the rods 152 of the spray element 105 are disposed generally along the Z-axis direction as illustrated.
- the rods 152 of the spray element 105 can be disposed generally along the illustrated X-axis direction.
- a particulate matter removing assembly 100, 100' is a basic unit, and the apparatus 10 is specifically a collection of a plurality of said basic units.
- the base unit may be laterally and longitudinally tiled in the cross section of the body 11 of the WFGD 1, and may be covered according to the shape of the cross section of the body 11 of the WFGD 1 (in this illustration, the body 11 is shown in a circular cross section).
- FIG. 15 the figure shows the structure of a system 1 for treating flue gas according to a specific embodiment of the present invention.
- the system 1 for treating flue gas is specifically WFGD, in this embodiment, along the direction in which the flue gas 2 flows (in this illustration, the flue gas 2 flows from bottom to top), including for removing flue gas.
- the device 10 of the particulate removal assembly can also be located Above the device 20 for removing sulfur dioxide and sulfur trioxide in the flue gas.
- the flue gas 2 after the desulfurization treatment enters the apparatus 10 including the at least one particulate matter removing assembly 100, 100' at a higher flow rate, and the flue gas 2 at this time can be regarded as including The vapor of the droplets, which is at least interspersed with particulate matter.
- the flue gas 2 After the flue gas 2 enters the particulate matter removing assembly 100, 100', it is continuously changed in accordance with the different arrangement of the panel units 101, 101' in the fluid passage defined by the stacked plate units 101, 101'. Flow direction until it is discharged outward. Due to the tortuosity of the fluid passage, the flue gas 2 is flowed at a higher flow rate.
- the flue gas 2 fails to follow the meandering of the fluid passage and impinges on the panel unit 101, 101', under the action of inertial impact, the flue gas
- the particulate matter in 2 or the particulate matter carried by the droplets will be separated from the flue gas 2 phase.
- the separated particles or the droplets entrained with the particles fall downward under the force of gravity, and when they touch the plate unit 101, 101', they continue to flow down the wall of the plate unit 101, 101'.
- the edge of the free end of the inner wall 111 of the body 11 of the WFGD 1 of the panel unit 101, 101' is provided with a cavity 104, and the droplets are collected and captured for the cavity 104 to avoid Secondary entrainment.
- the apparatus and system for treating flue gas provided by the present invention, particularly the geometrical arrangement of the plate member and the space thereof designed by a specific structure, can effectively improve the work efficiency of removing particulate matter in the flue gas; meanwhile, avoid Unacceptable pressure drop in systems with completely different kinetics; in addition, the improved device eliminates the need for additional dedusting equipment, which simplifies the machining process and eliminates the need for work space, resulting in an effective reduction in production and manufacturing costs.
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Abstract
一种处理包含颗粒物的烟气的装置及处理烟气的湿式烟气脱硫系统，该装置位于湿式烟气脱硫系统中，包括：至少一个颗粒物去除组件，用于去除所述颗粒物，其中颗粒物去除组件包括：多个板件单元，板件单元沿着烟气的流动方向而相互地层叠排布，且朝着烟气的流动方向相对于水平面弯曲；以及流体通道，其由板件单元限定，用于供烟气和烟气中分离出的颗粒物在流体通道中以大致相反的方向流动。
Description
本发明涉及一种处理烟气的装置和系统，具体地，涉及一种将湿式烟气脱硫系统中的烟气所包含的颗粒物去除的装置和系统。
在化石燃料发电过程中，从湿式烟气脱硫塔(Wet Flue Gas Desulfurization，以下简称“WFGD”)释放出来的颗粒物质(Particulate Matters，以下简称“PM”)将导致空气污染。目前，发电厂对PM排放的监管变得更加严格，这要求发电厂将PM的排放量控制到非常低。为了满足此要求，通常在WFGD的下游额外地连接一湿式静电除尘设备(Wet Electro-Static Precipitator，以下简称“WESP”)，然而，该方案需要有额外的空间来安装WESP，也增加了发电成本。
由此，期望提供新的和改进的处理烟气装置和系统，用以高效率地控制WFGD所释放的烟气中的PM排放量，同时也可简化处理工艺、减少占地空间且降低运营成本。
发明内容
根据本发明的一方面，提供了一种处理包含颗粒物的烟气的装置，所述装置位于湿式烟气脱硫系统中，所述装置包括：至少一个颗粒物去除组件，用于去除所述颗粒物，其中每一所述至少一个颗粒物去除组件包括：多个板件单元，各所述板件单元沿着所述烟气的流动方向而相互地层叠排布且朝着所述烟气的流动方向相对于水平面弯曲；以及流体通道，其由所述多个板件单元限定，用于供所述烟气和从所述烟气中分离出的所述颗粒物在所述流体通道中流动，所述烟气和所述颗粒物在所述流体通道中以大致相反的方向流动。
根据本发明的另一方面，提供了一种处理烟气的湿式烟气脱硫系统，
其包括：用于去除所述烟气中的硫的装置；和包括前述的用于去除所述烟气中的颗粒物的颗粒物去除组件的装置。
参考附图阅读下面的详细描述，可以帮助理解本发明的特征、方面及优点，其中：
图1是根据本发明之一具体实施方式的处理烟气的装置的结构示意图；
图2是根据本发明之第一实施方式的颗粒物去除组件的结构示意图；
图3是图2的俯视图；
图4是根据本发明之第二实施方式的颗粒物去除组件的结构示意图；
图5是图4的俯视图；
图6是根据本发明之第三实施方式的颗粒物去除组件的结构示意图；
图7是根据本发明之第四实施方式的颗粒物去除组件的结构示意图；
图8是根据本发明之第五实施方式的颗粒物去除组件的结构示意图；
图9是根据本发明之第六实施方式的颗粒物去除组件的结构示意图；
图10是图9的侧视图；
图11是根据本发明之第七实施方式的颗粒物去除组件的结构示意图；
图12是图11的侧视图；
图13是根据本发明之又一具体实施方式的处理烟气的装置的结构示意图；
图14是图13的俯视图；以及
图15是包括图13所示的处理烟气的装置的湿式烟气脱硫系统的结构示意图。
以下将描述本发明的一个或者多个具体实施方式。首先要指出的是，在这些实施方式的具体描述过程中，为了进行简明扼要的描述，本说明书不可能对实际的实施方式的所有特征均作详尽的描述。应当可以理解的是，在任意一种实施方式的实际实施过程中，正如在任意一个工程项目或者设计项
目的过程中，为了实现开发者的具体目标，或者为了满足系统相关的或者商业相关的限制，常常会做出各种各样的具体决策，而这也会从一种实施方式到另一种实施方式之间发生改变。此外，还可以理解的是，虽然这种开发过程中所作出的努力可能是复杂并且冗长的，然而对于与本发明公开的内容相关的本领域的普通技术人员而言，在本公开揭露的技术内容的基础上进行的一些设计，制造或者生产等变更只是常规的技术手段，不应当理解为本发明公开的内容不充分。
除非另作定义，在本说明书和权利要求书中使用的技术术语或者科学术语应当为本发明所属技术领域内具有一般技能的人士所理解的通常意义。本说明书以及权利要求书中使用的“第一”或者“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“一个”或者“一”等类似词语并不表示数量限制，而是表示存在至少一个。“或者”包括所列举的项目中的任意一者或者全部。“包括”或者“包含”等类似的词语意指出现在“包括”或者“包含”前面的元件或者物件涵盖出现在“包括”或者“包含”后面列举的元件或者物件及其等同元件，并不排除其他元件或者物件。
本发明涉及的是一种处理烟气的装置，其包括改进的除去烟气中的颗粒物的结构，使得工作效率得到有效提升，同时，经改进的结构也省去了额外的装置、简化了加工工艺，使得生产与制造成本得到了有效降低。
图15示出根据本发明具体实施方式的湿式烟气脱硫系统(WFGD)1的结构示意图。如图15所示，处理烟气的装置10装设于WFGD 1之主体11中，使得处理烟气的装置10和WFGD 1呈一整体式的系统。
请同时结合图1，处理烟气的装置10包括至少一个颗粒物去除组件100，100’，在该图式中，处理烟气的装置10以包括一个颗粒物去除组件100，100’被示出。每一颗粒物去除组件100，100’包括若干板件单元101，101’。各板件单元110，110’沿着烟气2的流动方向21依次地层叠排布，在该图式中，烟气2的流动方向21大致呈由下而上。依次层叠排布的各板件单元101，101’形成了使烟气2流动于其中的流动通道。各板件单元101，101’朝着所述
烟气的流动方向相对于水平面弯曲而形成大约120度至170度的夹角106。在一些实施方式中，若干层叠排布的板件单元101，101’大致呈相互平行。
请同时结合图2和图3，图2和图3示出了第一实施方式的颗粒物去除组件100。在图2和图3中，板件单元呈成对的板件，若干成对的板件包括第一板件子单元111和第二板件子单元112，第一板件子单元111和第二板件子单元112相对于水平方向并排布置，且在并排处朝着所述烟气的流动方向弯曲而形成大约120度至170度的夹角106。在一些实施方式中，每一层叠排布的成对的板件大致呈相互平行。在一些实施方式中，第一、第二板件子单元111、112各为整体式的板件，其横贯于WFGD 1之主体11中。在一些实施方式中，第一、第二板件子单元111、112各为若干板件的集合。在一些实施方式中，各板件具有大致相等的规格，如尺寸、材料等。在一些实施方式中，各板件可以是平面板、曲面板，也可以是该两者的结合。
请继续参阅图2，成对的板件包括第一成对的板件110、第二成对的板件120和第三成对的板件130。第一成对的板件110之第一、第二板件子单元之间具有第一距离，第二成对的板件120之第一、第二板件子单元之间具有第二距离，第三成对的板件130之第一、第二板件子单元之间具有第三距离。在该图示中，第一距离为零或接近于零，第二距离大于第一距离、第三距离大于第二距离。在一些实施方式中，第三成对的板件130、第二成对的板件120和第一成对的板件110沿着烟气的流动方向依次地层叠排布。如图2所示，在该实施方式中，颗粒物去除组件100可以包括有两组沿着烟气的流动方向，即由下而上，依次层叠排布的第三成对的板件130、第二成对的板件120和第一成对的板件110，各组之间也是沿着烟气的流动方向而呈上、下排布。在一些实施方式中，颗粒物去除组件100也可以包括有三组沿着烟气的流动方向，即由下而上，依次层叠排布的第二成对的板件120和第一成对的板件110，各组之间也是沿着烟气的流动方向而呈上、下排布。
请同时结合图4和图5，图4和图5示出了第二实施方式的颗粒物去除组件100’。在该图式中，各板件单元101’朝着烟气的流动方向相对于水平面弯曲而形成大约120度至170度的夹角106。在一些实施方式中，若干
层叠排布的板件单元101’大致呈相互平行。在该图式中，各板件单元101’为一整体式板件。在一些实施方式中，各整体式板件具有大致相等的规格，如材料等。在一些实施方式中，各整体式板件可以是平面板、曲面板，也可以是该两者的结合。
请继续参阅图4和图5，各整体式板件包括第一板件单元110’和第二板件单元120’。第一板件单元110’大致呈圆形，包括但不限定为正圆形，第二板件单元120’呈中空的环形，第二板件单元120’、第一板件单元110’沿着所述烟气的流动方向依次层叠排布。在该实施方式中，颗粒物去除组件100’包括有三组沿着烟气的流动方向，即由下而上，依次层叠排布的第二板件单元120’和第一板件单元110’，各组之间也是沿着烟气的流动方向而呈上、下排布。在一些实施方式中，各整体式板件还可包括第三板件单元(图未示)，该第三板件单元呈中空的环形，其中空的面积大约第二板件单元120’之中空的面积，颗粒物去除组件100’可以包括有两组沿着烟气的流动方向，即由下而上，依次层叠排布的第三板件单元、第二板件单元120’和第一板件单元110’，各组之间也是沿着烟气的流动方向而呈上、下排布。
请同时结合图3和图5，根据该实施方式，板件单元101，101’上可设有气体流路元件102，其穿设于板件单元101，101’，可以使得烟气2从中流过但不致于为烟气2中所包含的液滴与颗粒物所堵塞，也可以使得整个装置10所承受的压力得以降低。根据该实施方式，气体流路元件102具体是通孔，开孔率大约在20％至40％的范围内，各通孔的孔径大致在10mm至20mm的范围内，以使得整个装置10的除尘效率和压力最优化。在一些实施方式中，气体流路元件102具体呈长槽型(图未示)。在一些实施方式中，气体流路元件102具体呈四边形(图未示)。
请同时结合图6，根据该实施方式，板件单元101，101’上可设有第一导向元件103，其位于板件单元101，101’之背对烟气的流动方向21的表面，即位于图6所示的板件单元101，101’的上表面，以引导进入由两相邻层叠排布的板件单元所限定的流体通道中的烟气2持续地流向下一个由两相邻层叠排布的板件单元所限定的流体通道中，或者，以引导进入具有中空区域
的大致呈环形的板件单元所限定的流体通道中的烟气持续地流向下一个具有中空区域的大致呈环形的板件单元所限定的流体通道中，直至流出整个装置10。
在一些实施方式中，第一导向元件103可位于第二成对的板件120、第三成对的板件130或者同时位于第二成对的板件120和第三成对的板件130。在一些实施方式中，第一导向元件103可分别位于第二成对的板件120之第一、第二板件子单元上以及第一成对的板件110之第一、第二板件子单元上。在一些实施方式中，第一导向元件103临近于成角度地相并排排布的第一、第二板件子单元的中间区域。
在一些实施方式中，第一导向元件103可位于第二板件单元120’、第三板件单元或者同时位于第二板件单元120’和第三板件单元。在一些实施方式中，第一导向元件103临近于第二板件单元120’之中空区域处以及第三板件单元之中空区域处。
在一些实施方式中，第一导向元件103可额外地装设在板件单元101，101’上，也可以与板件单元101，101’一体成型。在一些实施方式中，第一导向元件103具体是涡流型导向件，以使得烟气2形成涡流，而提升烟气2中所包含的PM、液滴与板件101之间的惯性碰撞作用。
请同时结合图7，根据该实施方式，板件单元101，101’上可设有第二导向元件104，其位于板件单元101，101’之自由端的边缘处，所述边缘朝着湿式烟气脱硫系统1之主体11的内壁111延伸，进一步地，所述边缘与所述内壁111之间留有间隙。在一些实施方式中，第二导向元件104可位于第一成对的板件110、第二成对的板件120或者同时位于可位于第一成对的板件110和第二成对的板件120。在一些实施方式中，第二导向元件104可位于第一板件单元110’、第二板件单元120’或者同时位于可位于第一板件单元110’和第二板件单元120’。在该图示中，第二导向元件104以位于第一成对的板件110、第一板件单元110’且以凹腔示出。第二导向元件104用于聚集在该装置10中所生成的夹带有颗粒物的液滴。
请同时结合图8，根据该实施方式，湿式烟气脱硫系统1之主体11的内壁111朝着板件单元101，101’延伸有多个第三导向元件107，进一步地，第三导向元件107相对于水平面而背对所述烟气的流动方向延伸，在该图示中，即相对于水平面向下倾斜地延伸，用于引导经分离的颗粒物或者夹带有颗粒物的液滴沿着板件单元101，101’之表面落下，而防止其在湿式烟气脱硫系统1之主体11的内壁111发生逃逸。在一些实施方式中，第三导向元件107为折流挡板。
请同时结合图9、图10、图11以及图12，根据图示的实施方式，板件单元101，101’上可设有喷雾元件105，其装设于至少一个板件单元101，101’之中间区域的背对烟气的流动方向21的一侧，即装设于图9所示的板件单元101，101’之中间区域的下方或者装设于图11所示的板件单元101，101’之中间区域的上方，以沿着烟气2之流动方向喷淋水雾，从而更好地从烟气2中带走颗粒物，同时，也可冲洗去附着在板件单元101，101’上的颗粒物。在图示的实施方式中，喷雾元件105装设在每一组包括有第二成对的板件120和第一成对的板件110的中间区域的下方或上方。在图示的实施方式中，喷雾元件105具体是一杆件152，在该杆件152上沿着轴向可设有若干喷头151。在图示的实施方式中，喷雾元件105之杆件152大致沿着图示之Z轴方向布置。在一些实施方式中，喷雾元件105之杆件152可大致沿着图示之X轴方向布置。
请同时结合图13和图14，根据该实施方式，以一个颗粒物去除组件100，100’为一基本单元，装置10具体是多个所述基本单元的集合。基本单元可在WFGD 1之主体11横截面之横向、纵向平铺，并且根据WFGD 1之主体11横截面的形状(该图示中，主体11横截面以圆形示出)而铺满之。
如图15所示，该图示出了本发明具体实施方式的处理烟气的系统1的结构。处理烟气的系统1具体是WFGD，在该实施方式中，沿着烟气2流动的方向(在该图示中，烟气2由下而上地流动)，包括用于去除烟气中的二氧化硫、三氧化硫的装置20，以及如前所述的用于去除烟气2中的颗粒物去除组件的装置10。在一些实施方式中，颗粒物去除组件的装置10也可位于
用于去除烟气中的二氧化硫、三氧化硫的装置20的上方。
请继续参考图15，根据该实施方式，经脱硫处理后的烟气2以较高的流速进入包括至少一个颗粒物去除组件100，100’的装置10，此时的烟气2可视作为包括含有液滴的蒸汽，其至少夹杂有颗粒物。烟气2进入颗粒物去除组件100，100’后，在由层叠式排布的板件单元101，101’所限定的流体通道里，根据板件单元101，101’的不同排布而不断地改变流动方向，直至向外排出。由于所述流体通道的曲折，加以烟气2以较高的流速流动，当烟气2无法遵从流体通道的曲折而撞击在板件单元101，101’上，在惯性撞击的作用下，烟气2中的颗粒物或者由液滴所夹带着的颗粒物将与烟气2相分离。经分离的颗粒物或者是夹带着颗粒物的液滴便在重力作用下向下落下，当触碰至板件单元101，101’时便会顺着板件单元101，101’之壁而继续向下流。在一些实施方式中，板件单元101，101’之靠近WFGD 1之主体11内壁111的自由端的边缘设有凹腔104，所述液滴便会为该凹腔104所收集和捕获，以避免二次夹带。
由此，通过本发明提供的处理烟气的装置与系统，特别是经特定结构设计的板件及其空间的几何排布，使得除去烟气中的颗粒物的工作效率得到有效提升；同时，避免在动力学完全不同的系统中的无法接受的压降；另外，经改进的装置无需额外的除尘设备，从而简化了加工工艺，也省去了作业空间，使得生产与制造成本得到有效降低。
虽然结合特定的具体实施方式对本发明进行了详细说明，但本领域的技术人员可以理解，对本发明可以作出许多修改和变型。因此，要认识到，权利要求书的意图在于覆盖在本发明真正构思和范围内的所有这些修改和变型。
Claims (13)
- 一种处理包含颗粒物的烟气的装置，所述装置位于湿式烟气脱硫系统中，所述装置包括：至少一个颗粒物去除组件，用于去除所述颗粒物，其中所述至少一个颗粒物去除组件中的每一个包括：多个板件单元，各所述板件单元沿着所述烟气的流动方向而相互地层叠排布，且朝着所述烟气的流动方向相对于水平面弯曲；以及流体通道，其由所述多个板件单元限定，用于供所述烟气和从所述烟气中分离出的所述颗粒物在所述流体通道中流动，所述烟气和所述颗粒物在所述流体通道中以大致相反的方向流动。
- 根据权利要求1所述的处理烟气的装置，其特征在于，各所述板件单元呈成对的板件，所述成对的板件相对于水平面并排布置。
- 根据权利要求2所述的处理烟气的装置，其特征在于，所述成对的板件包括：第一成对的板件，每一所述第一成对的板件之间以第一距离并排布置，所述第一距离大致为零；第二成对的板件，每一所述第二成对的板件之间以第二距离并排布置，所述第二距离大于所述第一距离；其中，所述第二成对的板件与第一成对的板件沿着所述烟气的流动方向依次层叠排布。
- 根据权利要求3所述的处理烟气的装置，其特征在于，所述成对的板件还包括：第三成对的板件，每一所述第三成对的板件之间以第三距离并排布置，所述第三距离大于所述第二距离；其中，所述第三成对的板件、第二成对的板件与第一成对的板件沿着所述烟气的流动方向依次层叠排布。
- 根据权利要求1所述的处理烟气的装置，其特征在于，所述板件单元包括：第一板件单元，其大致呈圆形；第二板件单元，其呈中空的环形；其中，所述第二板件单元与第一板件单元沿着所述烟气的流动方向依次层叠排布。
- 根据权利要求5所述的处理烟气的装置，其特征在于，所述板件单元还包括：第三板件单元，其呈中空的环形，所述第三板件单元之中空的面积大于所述第二板件单元之中空的面积；其中，所述第三板件单元、第二板件单元与第一板件单元沿着所述烟气的流动方向依次层叠排布。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，至少一个所述板件单元包括多个穿设于其中的气体流路元件。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，至少一个所述板件单元包括多个第一导向元件，其位于所述板件单元之背对所述烟气的流动方向的表面。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，至少一个所述板件单元包括多个第二导向元件，其位于所述板件单元的边缘处，所述边缘朝着所述湿式烟气脱硫系统之主体的内壁延伸且与所述内壁之间具有间隙。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，还包括多个第三导向元件，其朝着所述板件单元而延伸于所述湿式烟气脱硫系统之主体的内壁。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，所述颗粒物去除组件还包括：多个喷雾元件，其装设于至少一个所述板件单元之中间区域的背对所述烟气的流动方向的一侧。
- 根据权利要求1至6任一项所述的处理烟气的装置，其特征在于，多个层叠排布的板件单元大致呈相互平行。
- 一种处理烟气的湿式烟气脱硫系统，包括：用于去除所述烟气中的二氧化硫、三氧化硫的装置；以及包括如权利要求1至12任一项所述的装置。
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