WO2008151507A1 - Gas-distributing means used in an electrostatic dust sepatator - Google Patents

Gas-distributing means used in an electrostatic dust sepatator Download PDF

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Publication number
WO2008151507A1
WO2008151507A1 PCT/CN2008/001060 CN2008001060W WO2008151507A1 WO 2008151507 A1 WO2008151507 A1 WO 2008151507A1 CN 2008001060 W CN2008001060 W CN 2008001060W WO 2008151507 A1 WO2008151507 A1 WO 2008151507A1
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Prior art keywords
electric field
electrostatic precipitator
gas
wind
air
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PCT/CN2008/001060
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French (fr)
Chinese (zh)
Inventor
Ye Yuan
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Ye Yuan
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Publication of WO2008151507A1 publication Critical patent/WO2008151507A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
    • B03C3/363—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located before the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/361—Controlling flow of gases or vapour by static mechanical means, e.g. deflector
    • B03C3/365—Controlling flow of gases or vapour by static mechanical means, e.g. deflector located after the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode has multiple serrated ends or parts

Definitions

  • the invention relates to a wind eliminator which is suitable for an electrostatic precipitator, which can quickly convert kinetic energy in a gas stream entering an electric eliminator into static pressure energy, in particular, can greatly reduce the dust concentration of the electric precipitator : The air blower.
  • the airflow velocity in the electrostatic precipitator is one of the key factors affecting the dust removal efficiency of the electrostatic precipitator. If the airflow velocity in the electric field is reduced from 1.4 m/s to 0.7 m/s, the efficiency of the electrostatic precipitator can be made. From 80% to over 98%, since the airflow speed is doubled, the size of the electrostatic precipitator is doubled, so that the equipment cost is doubled, and the airflow speed is sought to be reduced without increasing the size of the electrostatic precipitator.
  • the technological innovation program is of great significance, especially in China, which currently operates an electric precipitator with a cost of several hundred billion yuan; its dust concentration is above 100mg/m 3 , and its performance index is much higher than the national environmental protection requirements. 50 mg/m 3 , therefore, in order to accelerate the retrofitting of old electric dust removal, it is extremely necessary to seek to reduce the air flow speed without increasing the technical innovation of the electrostatic precipitator volume. Summary of the invention
  • the present invention provides a wind-eliminating device which can be added only one without changing the original basic structure of the electrostatic precipitator.
  • a simple air-dissipating device can quickly convert the gas flow energy into the electrostatic precipitator into a static pressure energy. Since the airflow in the electric field of the electrostatic precipitator is operated in a negative pressure, the airflow velocity [u 2 ] in the electric field is spaced from the exhaust vent [ r 2 ] square is inversely proportional. Therefore, the present invention provides an electric field of the air eliminator that can make the air flow speed much lower than the original designed air flow speed, and the air flow speed can be reduced to less than 20%.
  • the technical solution adopted by the present invention to solve the technical problem is: adding one or more installations in the gap between the air inlet and the electric field in the electrostatic precipitator case without changing the original basic structure of the electric precipitator
  • the air-dissipating device is composed of a horizontally arranged suspension of the airflow distribution plate, and the air-discharging device converts the gas flow energy entering the tank into static pressure energy, so that the airflow is stably and evenly entered into the dust-removing electric field, and the slow-flowing is the charged dust particles. Settling on the dust collecting anode plate creates extremely favorable conditions.
  • a wind-eliminating device is respectively installed between the third electric field and the fourth electric field to ensure the stability of the slow-flow through each electric field.
  • a windshield is arranged above the air-dissipating device to block the upper airflow of the two electric fields to ensure that the airflow passes through the dust-removing electric field.
  • the electrostatic precipitator with additional air-dissipating device can greatly reduce the number of electric field settings. With only one or two electric fields, the dust concentration can reach the national environmental protection requirement of 50 mg/m 3 or less, thus greatly reducing the manufacturing cost.
  • Figure 1 is a cross-sectional view showing the mounting structure of the embodiment of the electrostatic precipitator of the present invention
  • Figure 2 is a cross-sectional view of the longitudinal mounting structure of Figure 1.
  • FIG. 3 is a schematic structural view of an embodiment of a gas flow distribution plate made of a metal slat of the present invention.
  • Figure 4 is a cross-sectional view of the I-I of Figure 3 using V-shaped metal strips.
  • Figure 5 is a cross-sectional view of the I-I of the U-shaped metal strip of Figure 3.
  • Figure 6 is a schematic view showing the structure of an embodiment of a gas flow distribution plate made of a metal plate.
  • Figure 7 is a cross-sectional view taken along line I-I of Figure 6.
  • 1 is a wind-dissipating device composed of a gas-dissipating panel; 2. a gas distribution plate; 3. a gas distribution plate; 4. a dust collecting anode plate; 5. a corona cathode wire; 6. a wind inlet box; , ventilating box; 8, ash hopper; 9, fixed pin; 10, metal slats; 1.1., ventilation holes; 12, windshield;
  • the dust-containing airflow enters the air inlet box (6) is adjusted by the air distribution plate (3) in the air inlet box, and the dust-containing air stream is blown to the air distribution plate (2)
  • a dust collecting electric field composed of a combination of a corona cathode wire (5) and a dust collecting anode plate (4).
  • a wind-dissipating device (1) that is assembled by a suspension of airflow distribution plates is again attenuated to enter the second electric field.
  • the slow-flow gas in the middle is more stable.
  • a windshield (12) is arranged above the air-dissipating device to block the upper airflow of the two electric fields to ensure that the airflow passes through the dust-removing electric field.
  • the residual soot particles in the gas are removed in the second electric field of the electrostatic precipitator.
  • the dust-removed gas is cleaned and discharged from the exhaust box (7) via the air distribution plate (3).
  • Fig. 2 is a longitudinal cross-sectional view of Fig. 1, the dust-containing airflow enters the air inlet box (6) the dust-containing airflow is blown to the three air-dissipating devices (1) suspended by the airflow distribution plate, and the airflow speed is three.
  • the air eliminator (1) attenuates and absorbs, and its kinetic energy is converted into static pressure energy, so that the gas entering the electric field becomes a slow flow, and the alternating intervals of the electric field are arranged, by the corona cathode line (5) and the dust collecting anode plate ( 4) A combined dust collecting electric field.
  • the slow-flowing dust particles settled on the dust-collecting anode plate (4), creating a very favorable condition.
  • the two electric fields are A wind-dissipating device consisting of a combination of airflow and air-damping plates ; (1) attenuating again, making the slow-flowing gas entering the second electric field more stable, and at the same time, above the air-dissipating device: setting a windshield ( 12), the upper airflow of the two electric fields is blocked to ensure that the airflow passes through all the dust removal electric fields. The residual soot particles in the gas are removed in the second electric field of the electrostatic precipitator. Finally, the dust-removed gas is cleaned and discharged from the exhaust box (7) via the air distribution plate (3).
  • an air flow distribution plate (2) is prepared by fixing the metal strips (10) of the same shape by fixing pins (9) at equal intervals.
  • FIG. 4 is a cross-sectional view of Fig. 3 using a V-shaped metal strip, the same V-shaped metal strip (10) is fixed by a fixing pin (9) at an equal angle, and the air flow is eliminated.
  • Fig. 5 is a cross-sectional view of Fig. 3 using a U-shaped gold strip 1-1, the same U-shaped metal strip (10) is fixed by a fixing pin (9), and the equal spacing is fixed at a certain angle.
  • Fig. 6 a gas flow distribution plate (2) made of a metal plate is used. The vent hole (11) is distributed on the plate.
  • Fig. 7 is a cross-sectional view of II of Fig. 6, the air flow distribution by the metal plate.
  • the ventilating hole (11) is connected with a guide vane with a certain angle, and the guide vane attenuates and absorbs the flow energy of the dusty gas, so that the gas entering the electric field becomes a slow flow.

Abstract

A gas-distributing means (1) used in an electrostatic dust separator is provided. The electrostatic dust separator is provided with a gas-inputting box (6) and a gas-outputting box (7) on both ends of a chamber, respectively, and is provided with a hopper (8) under the chamber. Dust-collecting electric field comprises electricity cathode lines (5) and dust-collecting anode plates (4) which are suspended alternately in the chamber. The gas-distributing means (1) comprises one or more than one gas- distributing plates (2) which are arranged transversely and suspended, and is arranged between gas inlet of chamber and electric field.

Description

一种应用于电除尘器中的消风装置  Air-dissipating device applied to electric precipitator
技术领域 Technical field
本发明涉及一种应于电除尘器中的消风装置，该装置能迅速将进入电除器 中的气流中的动能转换成静压能，尤其是能使电除尘器排尘浓度大幅度降低的: 消风装置。  The invention relates to a wind eliminator which is suitable for an electrostatic precipitator, which can quickly convert kinetic energy in a gas stream entering an electric eliminator into static pressure energy, in particular, can greatly reduce the dust concentration of the electric precipitator : The air blower.
背景技术 Background technique
公知， 电除尘器中的气流速度是影响电除尘器的除尘效率关健因素之 一，如果将电场中的气流速度从 1.4m/S降为 0.7m/S时， 可以使电除尘器的 效率从 80%提高到 98%以上， 由于气流速度每降低一倍， 就要求电除尘器 的体积增大一倍， 从而设备成本加大一倍， 寻求降低气流速度， 而不增大 电除尘器体积的技术创新方案,是有着重要意义的， 尤其是我国目前工业上 运行着造价数千亿元的电除尘器； 其排尘浓度都在 100mg/m3以上， 其性能 指标远高于国家环保要求的 50 mg/m3， 因此， 为了加速老旧电除尘的改造， 寻求降低气流速度,不增加电除尘器体积技术创新方案，是极其必要的。 发明内容 It is known that the airflow velocity in the electrostatic precipitator is one of the key factors affecting the dust removal efficiency of the electrostatic precipitator. If the airflow velocity in the electric field is reduced from 1.4 m/s to 0.7 m/s, the efficiency of the electrostatic precipitator can be made. From 80% to over 98%, since the airflow speed is doubled, the size of the electrostatic precipitator is doubled, so that the equipment cost is doubled, and the airflow speed is sought to be reduced without increasing the size of the electrostatic precipitator. The technological innovation program is of great significance, especially in China, which currently operates an electric precipitator with a cost of several hundred billion yuan; its dust concentration is above 100mg/m 3 , and its performance index is much higher than the national environmental protection requirements. 50 mg/m 3 , therefore, in order to accelerate the retrofitting of old electric dust removal, it is extremely necessary to seek to reduce the air flow speed without increasing the technical innovation of the electrostatic precipitator volume. Summary of the invention
为了克服目前电除尘不能将排尘浓度降至 50 mg/m3以下的性能缺点， 本发明提供一种消风装置， 可以在不改变电除尘器的原有基本结构的条件 下,仅增设一种简单的消风装置， 可以将进入电除尘器中气流动能迅速转化 成静压能,由于电除尘器电场中气流是在负压中运行， 电场中气流速度 [ u 2 ] 与排风口距离 [ r2] 平方成反比， 因此， 本发明提供一种消风装置电场可以 使气流速度大大低于原设计的气流速度， 气流速度可以降到为 20%以下， In order to overcome the performance shortcoming that the current dust removal cannot reduce the dust emission concentration to below 50 mg/m 3 , the present invention provides a wind-eliminating device which can be added only one without changing the original basic structure of the electrostatic precipitator. A simple air-dissipating device can quickly convert the gas flow energy into the electrostatic precipitator into a static pressure energy. Since the airflow in the electric field of the electrostatic precipitator is operated in a negative pressure, the airflow velocity [u 2 ] in the electric field is spaced from the exhaust vent [ r 2 ] square is inversely proportional. Therefore, the present invention provides an electric field of the air eliminator that can make the air flow speed much lower than the original designed air flow speed, and the air flow speed can be reduced to less than 20%.
1 1
确认本 为荷电烟尘微粒从容沉降在收尘阳极板上创造了有利条件， 从而大幅度降 低电除尘器排尘浓度， 使之可以达到国标 50 mg/m3以下。 Confirmation It has created favorable conditions for the electrostatic deposition of charged soot particles on the dust collecting anode plate, thereby greatly reducing the dust concentration of the electrostatic precipitator, so that it can reach the national standard of 50 mg/m 3 or less.
本发明解决其技术问题所采用的技术方案是： 在不改变电除尘器的原有 的基本结构情况下， 在电除尘器箱体内， 进风口与电场之间的空隙,增设安 装一道或多道由气流分布板块横向排列悬挂组合而成的消风装置， 该消风 装置将进入箱体内的气流动能转换成静压能,使气流稳定匀均进入除尘电 场， 缓流为荷电后的烟尘微粒沉降在收尘阳极板上,创造了极有利的条件。 在具有多电场的电除尘器中，除了在进风口与第一电场之空隙之间加装消风 装置， 也可以在第一电场与第二电场之间， 第二电场与第三电场之间， 第 三电场与第四电场之间分别加装消风装置，以保证每个电场中通过缓流的稳 定性。 同时， 在消风装置上方设置挡风板， 将两个电场上部气流阻隔， 以 保证气流全部从除尘电场中通过。 '  The technical solution adopted by the present invention to solve the technical problem is: adding one or more installations in the gap between the air inlet and the electric field in the electrostatic precipitator case without changing the original basic structure of the electric precipitator The air-dissipating device is composed of a horizontally arranged suspension of the airflow distribution plate, and the air-discharging device converts the gas flow energy entering the tank into static pressure energy, so that the airflow is stably and evenly entered into the dust-removing electric field, and the slow-flowing is the charged dust particles. Settling on the dust collecting anode plate creates extremely favorable conditions. In an electrostatic precipitator having multiple electric fields, in addition to the addition of a wind eliminator between the air inlet and the gap of the first electric field, between the first electric field and the second electric field, between the second electric field and the third electric field A wind-eliminating device is respectively installed between the third electric field and the fourth electric field to ensure the stability of the slow-flow through each electric field. At the same time, a windshield is arranged above the air-dissipating device to block the upper airflow of the two electric fields to ensure that the airflow passes through the dust-removing electric field. '
本发明有益效果是：  The beneficial effects of the invention are:
1、 在电除尘器原基本结构不改变的条件下， 仅增设消风装置便可以使 电除尘器的排尘浓度大幅度降低， 达到国家环保要求的 50 mg/m3以下。 其 改造成果远胜于 [电改袋]的技术方案。 1. Under the condition that the original basic structure of the electrostatic precipitator does not change, only the addition of the air-dissipating device can greatly reduce the dust-extracting concentration of the electrostatic precipitator, and reach the national environmental protection requirement of 50 mg/m 3 or less. The result of its transformation is far better than the technical solution of [electrical change bag].
2、 增设消风装置的电除尘器可以大大减少电场设置数量， 仅用一至二 个电场，排尘浓度即可达到国家环保 50 mg/m3以下的要求， 因此大幅度降低 的制造成本。 2. The electrostatic precipitator with additional air-dissipating device can greatly reduce the number of electric field settings. With only one or two electric fields, the dust concentration can reach the national environmental protection requirement of 50 mg/m 3 or less, thus greatly reducing the manufacturing cost.
3、 适用改造正在运行的电除尘器， 所需费用小， 工期短， 适合普遍推 广。 4、 可大幅度提高电除器对入口含尘浓度要求限制， 增设消风装置的电除 尘器,可以取消以往所设置在电除尘器前置预处理除尘装置。 3. It is suitable for retrofitting the running electrostatic precipitator, which requires less cost and short construction period, and is suitable for general promotion. 4. It can greatly improve the requirements of the electric discharge device on the dust concentration of the inlet. The electric precipitator of the air-discharging device can be added, and the pre-treatment dust-removing device previously installed in the electrostatic precipitator can be eliminated.
附图说明 DRAWINGS
图 1 是本发明电除尘器实施例的安装结构剖面图  Figure 1 is a cross-sectional view showing the mounting structure of the embodiment of the electrostatic precipitator of the present invention
图 2 是图 1中的纵向安装结构剖视图  Figure 2 is a cross-sectional view of the longitudinal mounting structure of Figure 1.
图 3 是本发明金属板条制成的气流分布板块实施例的结构示意图。 图 4 是图 3采用 V形金属板条的 I-I剖视图。  3 is a schematic structural view of an embodiment of a gas flow distribution plate made of a metal slat of the present invention. Figure 4 is a cross-sectional view of the I-I of Figure 3 using V-shaped metal strips.
图 5 是图 3采用 U型金属板条的 I-I剖视图。  Figure 5 is a cross-sectional view of the I-I of the U-shaped metal strip of Figure 3.
图 6 是采用金属板制作的气流分布板块实施例的结构示意图。 图 7是图 6的 I-I的剖视图。 图中 1、 是由气流消风板块组合而成的消风装置； 2、 气流分布板 块； 3、 气流分佈板； 4、 收尘阳极板； 5、 电晕阴极线； 6、 进风 箱； 7、 排风箱； 8、. 灰斗； 9、 固定销； 10、 金属板条； 1.1.、 通风 孔； 12、 挡风板；  Figure 6 is a schematic view showing the structure of an embodiment of a gas flow distribution plate made of a metal plate. Figure 7 is a cross-sectional view taken along line I-I of Figure 6. In the figure, 1 is a wind-dissipating device composed of a gas-dissipating panel; 2. a gas distribution plate; 3. a gas distribution plate; 4. a dust collecting anode plate; 5. a corona cathode wire; 6. a wind inlet box; , ventilating box; 8, ash hopper; 9, fixed pin; 10, metal slats; 1.1., ventilation holes; 12, windshield;
具体实施方式 detailed description
以下结合实施例及附图， 对本发明做进一步详细叙述。 以下实施例 为本发明的非限定性实施例。  The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. The following examples are non-limiting examples of the invention.
在图 1所示的实施例中， 含尘气流进入进风箱中 （6) 经进风箱中气 流分佈板 （3 ) 调整， 含尘气流吹向由的气流分布板块 （2 ) 悬挂组合而成 的三道消风装置 （1 ) ， 气流速度被三道消风装置 （1 ) 衰减吸收， 其动能 转化成静压能， 使进入电场中的气体成为缓流， 在电场中交替间隔的悬挂 排列着， 由电晕阴极线 （5 ) 和收尘阳极板 （4) 组合而成的收尘电场。 缓 流为荷电后的烟尘微粒沉降在收尘阳极板 （4) 上,创造了极有利的条件， 清洁后的缓流气体，从第一电场进入第二电场时，又会被两电场之间由气流 分布板块悬挂组合而成的一道消风装置 （1 ) 再次衰减， 使进入第二电场 中的缓流气体更加平稳， ，同时， 在消风装置上方设置挡风板 （12) ， 将两 个电场上部气流阻隔， 以保证气流全部从除尘电场中通过。 气体中残余的 烟尘微粒会在电除尘器第二电场中被清除， 最后,清洁除尘的气体,经气流 分佈板 （3 ) 从排风箱 （7 ) 中排出。 In the embodiment shown in Fig. 1, the dust-containing airflow enters the air inlet box (6) is adjusted by the air distribution plate (3) in the air inlet box, and the dust-containing air stream is blown to the air distribution plate (2) The three-way air-dissipating device (1), the airflow speed is attenuated and absorbed by the three air-dissipating devices (1), and the kinetic energy is converted into static pressure energy, so that the gas entering the electric field becomes a slow flow, and the suspensions are alternately arranged in the electric field. , a dust collecting electric field composed of a combination of a corona cathode wire (5) and a dust collecting anode plate (4). The slow-flowing dust particles settled on the dust-collecting anode plate (4), creating a very favorable condition. When the cleaned slow-flow gas enters the second electric field from the first electric field, it is again subjected to two electric fields. A wind-dissipating device (1) that is assembled by a suspension of airflow distribution plates is again attenuated to enter the second electric field. The slow-flow gas in the middle is more stable. At the same time, a windshield (12) is arranged above the air-dissipating device to block the upper airflow of the two electric fields to ensure that the airflow passes through the dust-removing electric field. The residual soot particles in the gas are removed in the second electric field of the electrostatic precipitator. Finally, the dust-removed gas is cleaned and discharged from the exhaust box (7) via the air distribution plate (3).
在图 2中是图 1的纵向剖视图， 含尘气流进入进风箱中 （6)含尘气流 吹向由的气流分布板块悬挂组合而成的三道消风装置 （1 ) ， 气流速度被三 道消风装置 （1 ) 衰减吸收， 其动能转化成静压能， 使进入电场中的气体成 为缓流， 电场中交替间隔的悬挂排列着， 由电暈阴极线 （5 )和收尘阳极板 (4)组合而成的收尘电场。缓流为荷电后的烟尘微粒沉降在收尘阳极板（4 ) 上,创造了极有利的条件， 清洁后的缓流气体， 从第一电场迸入第二电场时, 又会被两电场之间由的气流消风板块悬挂组合而成的一道消风装置 ;（1 ) 再 次衰减， 使进入第二电场中的缓流气体更加平稳， 同时， 在消风装置上方 ：设置挡风板 （12 ) ， 将两个电场上部气流阻隔， 以保证气流全部 除尘电 场中通过。 气体中残余的烟尘微粒会在电除尘器第二电场中被清除， 最后， 清洁除尘的气体,经气流分布板 （3 ) 从排风箱 （7 ) 中排出。 In Fig. 2 is a longitudinal cross-sectional view of Fig. 1, the dust-containing airflow enters the air inlet box (6) the dust-containing airflow is blown to the three air-dissipating devices (1) suspended by the airflow distribution plate, and the airflow speed is three. The air eliminator (1) attenuates and absorbs, and its kinetic energy is converted into static pressure energy, so that the gas entering the electric field becomes a slow flow, and the alternating intervals of the electric field are arranged, by the corona cathode line (5) and the dust collecting anode plate ( 4) A combined dust collecting electric field. The slow-flowing dust particles settled on the dust-collecting anode plate (4), creating a very favorable condition. After the cleaned slow-flow gas, when the second electric field is broken into the second electric field, the two electric fields are A wind-dissipating device consisting of a combination of airflow and air-damping plates ; (1) attenuating again, making the slow-flowing gas entering the second electric field more stable, and at the same time, above the air-dissipating device: setting a windshield ( 12), the upper airflow of the two electric fields is blocked to ensure that the airflow passes through all the dust removal electric fields. The residual soot particles in the gas are removed in the second electric field of the electrostatic precipitator. Finally, the dust-removed gas is cleaned and discharged from the exhaust box (7) via the air distribution plate (3).
图 3中是由固定销 （9)将相同形状的金属板条 （10) ， 等间距按一定 角度排列固定， 制成的的气流分布板块 （2) 实施例。 In Fig. 3, an air flow distribution plate (2) is prepared by fixing the metal strips (10) of the same shape by fixing pins (9) at equal intervals.
在图 4中是图 3采用 V形金属板条的 I-I的剖视图， 由固定销 （9) 将 相同 V形的金属板条 （10) ， 等间距按一定角度排列固定， 制成的气流消 风板块 （2 ) 实施例。 在图 5中是图 3采用 U型金厲板条的 1-1的剖视图， 由固定销 （9) 将 相同 U型的金属板条（10) ， 等间距按一定角度排列固定， 制成的气流分布 板块 （2) 实施例。 在图 6中是采用金属板制作的的气流分布板块 （2) 实施例， 在板块上 分佈着通风孔 （11) 在图 7中是图 6的 I-I的剖视图， 采用金属板制作的的气流分布板块实 施例 （2) ， 通风孔（11)上连带有一定角度的导流叶片,导流叶片衰减吸收 含尘气流动能，使进入电场中的气体成为缓流。 In Fig. 4 is a cross-sectional view of Fig. 3 using a V-shaped metal strip, the same V-shaped metal strip (10) is fixed by a fixing pin (9) at an equal angle, and the air flow is eliminated. Section (2) Example. In Fig. 5 is a cross-sectional view of Fig. 3 using a U-shaped gold strip 1-1, the same U-shaped metal strip (10) is fixed by a fixing pin (9), and the equal spacing is fixed at a certain angle. Airflow distribution plate (2) Example. In Fig. 6, a gas flow distribution plate (2) made of a metal plate is used. The vent hole (11) is distributed on the plate. Fig. 7 is a cross-sectional view of II of Fig. 6, the air flow distribution by the metal plate. In the plate embodiment (2), the ventilating hole (11) is connected with a guide vane with a certain angle, and the guide vane attenuates and absorbs the flow energy of the dusty gas, so that the gas entering the electric field becomes a slow flow.

Claims

权利要求书 Claim
1.一种应用在电除尘器中的消风装置，在电除尘器的箱体两端分别安装 进风箱 （6) 和排风箱 （7) ， 在箱体下部安装有灰斗 （8) ， 在箱体内交替 间隔的悬挂排列着， 由电晕阴极线 （5) 和收尘阳极板 （4) 组合而成的收 尘电场，其特征是：在箱体内进风口与电场之间安装有一至多道由的气流消 风板块 （2) 横向排列悬挂组合而成的消风装置 （1) 。 1. A wind eliminator used in an electrostatic precipitator, wherein a wind inlet box (6) and a ventilating box (7) are respectively installed at two ends of the box of the electrostatic precipitator, and a ash hopper (8) is installed at a lower part of the box body. A dust collecting electric field composed of a combination of a corona cathode wire (5) and a dust collecting anode plate (4) arranged in an alternately spaced suspension in the casing, characterized in that: a space is installed between the air inlet and the electric field in the casing At most, the airflow damper (2) is arranged horizontally and suspended to form a wind damper (1).
2.根据权利要求 1所述的一种应用在电除尘器中的消风装置， 其特征 是：气流消风板块（2)可由金属板制成，金属板块上分佈有导流通风孔（11)， 导流通风孔 （11) 有连带导流叶片。  2. A wind damper for use in an electrostatic precipitator according to claim 1, wherein the airflow damper (2) is made of a metal plate, and a ventilating hole is distributed on the metal plate (11) ), the guide vent (11) has associated guide vanes.
3.根据权利要求 1所述的一种应用在电除尘器中的消风装置， 其特征 是： 气流消风板块可由相同形状板条 （10) ， 等间距排列组合而成。  3. A wind damper for use in an electrostatic precipitator according to claim 1, wherein: the airflow damper panel is formed by arranging the same shape slats (10) at equal intervals.
4.根据权利要求 1所述的一种应用在电除尘器中的消风装置， 其特征 是： 在具有多个电场的电除尘器中， 可同.时在各电场与电场之间安装一至 多道消风装置 （1) ， 同时， 在消风装置 （1) 上方设置挡风板 （12) 。  4. A wind-eliminating device for use in an electrostatic precipitator according to claim 1, wherein: in an electrostatic precipitator having a plurality of electric fields, a mutual installation between the electric field and the electric field is performed at the same time. A multi-channel air-dissipating device (1) is provided, and at the same time, a windshield (12) is arranged above the air-dissipating device (1).
PCT/CN2008/001060 2007-06-08 2008-05-30 Gas-distributing means used in an electrostatic dust sepatator WO2008151507A1 (en)

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