WO2020024450A1 - 一种粉尘净化辅助装置、粉尘净化系统及其方法 - Google Patents

一种粉尘净化辅助装置、粉尘净化系统及其方法 Download PDF

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Publication number
WO2020024450A1
WO2020024450A1 PCT/CN2018/111229 CN2018111229W WO2020024450A1 WO 2020024450 A1 WO2020024450 A1 WO 2020024450A1 CN 2018111229 W CN2018111229 W CN 2018111229W WO 2020024450 A1 WO2020024450 A1 WO 2020024450A1
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Prior art keywords
dust
adsorbent
purifier
pipe
purification
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PCT/CN2018/111229
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English (en)
French (fr)
Inventor
林鹏
周文炎
包立强
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华夏易能（广东）新能源科技有限公司
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Publication of WO2020024450A1 publication Critical patent/WO2020024450A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
    • B01D51/02—Amassing the particles, e.g. by flocculation
    • B01D51/04—Amassing the particles, e.g. by flocculation by seeding, e.g. by adding particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates

Definitions

  • the present disclosure belongs to the technical field of dust removal devices, and relates to a dust purification device, a dust purification system, and a method thereof.
  • thin-film solar technology has risen. Because thin-film solar cells have the advantages of light weight, low cost, and easy installation, they have developed rapidly once proposed. Due to the advantages of higher photoelectric conversion efficiency, better stability, and radiation resistance, copper indium gallium selenium thin film solar cells have become the most promising thin film photovoltaic devices.
  • Common dust purifiers in related technologies usually consist of a fan, a filtering device and a dust collecting device.
  • the dust purifier mainly blows the dust on the surface of the substrate again through a fan or an auxiliary blowing mechanism to help the dust hood or Filtration system adsorption, its structure and control system are more complicated.
  • the filter element or filter device can effectively filter most of the fine dust, there are still fine particles with a small particle size that block the filter holes or adhere to the filter element and are not easy to fall, resulting in frequent replacement of the filter element, which increases the cost.
  • Fine dust can easily float in the air and pollute the workshop environment and air.
  • the present disclosure provides a dust purification assisting device, including: a receiving cavity adapted to communicate with the dust purifier, for receiving an adsorbent; and an air supply device communicating with the receiving cavity, provided to The receiving cavity provides a gas flow; wherein the adsorbent can be mixed with the dust-containing gas to be purified under the driving of the gas flow.
  • the dust-containing gas is transported by a dust-containing gas delivery pipe; the accommodation cavity is in communication with the dust-containing gas delivery pipe, and a space is provided between the accommodation cavity and the dust-containing gas delivery pipe
  • a gas mixing unit the dust-containing gas and an adsorbent-containing gas stream are mixed in the gas mixing unit.
  • the gas supply device communicates with the receiving cavity through an air pipe; a valve assembly for controlling a gas flow rate is provided on the air pipe.
  • One end of the trachea is located in the receiving cavity and extends into the adsorbent.
  • the adsorbent is a powdery or granular adsorbent, for example, it may be a nano-particle adsorbent.
  • the adsorbent may be selected from any one of amorphous silica, composite silica nano-adsorbent, and activated alumina.
  • the adsorbent may be a powdery amorphous silica powder.
  • the present disclosure provides a dust purification assisting method, which includes: starting an air supply device; the air flow of the air supply device blows the adsorbent to deliver the adsorbent to a dust-containing gas to be purified; Adsorbents combine to form large particle size dust particles.
  • the present disclosure provides a dust purification system including a dust purifier and the dust purification assisting device, wherein the dust purification assisting device is in communication with the dust purifier; a dust-containing gas is mixed with an airflow containing an adsorbent After purification by a dust purifier.
  • the adsorbent in the dust purification system, can be diffused into the dust purifier and the dust-containing gas to be purified in the dust purifier driven by the air flow of the air supply device. Mix.
  • the gas mixing unit When a gas mixing unit is provided between the accommodating cavity and the dust-containing gas conveying pipe, the gas mixing unit is connected to the accommodating cavity, the dust-containing gas conveying pipe, and the dust purifier. Tee structure.
  • the dust purifier includes a filter element, and a backflush pulse valve for backflushing the filter element.
  • the dust purifier includes: a fan, which provides a negative pressure required for the filter element to work; and a dust collector, which is configured to collect dust particles falling off the filter element.
  • the dust purification system further includes a controller and a sensing component electrically connected to the controller.
  • the sensor assembly includes at least a first airflow sensor and a differential pressure detection module.
  • the first airflow sensor is configured to detect a flow rate of the airflow containing the adsorbent, and the controller controls the valve assembly based on the electrical signal of the first airflow sensor to adjust the input airflow of the accommodating cavity.
  • the pressure difference detection module is configured to detect the working pressure difference of the dust purifier. When the working pressure difference of the dust purifier exceeds a threshold value, the controller controls the backflushing pulse valve to the air purifier based on an electrical signal of the pressure difference detection module.
  • the filter element performs back blow cleaning.
  • the sensing component further includes a second airflow sensor configured to detect a flow of airflow at the fan, and the controller controls the speed of the fan based on an electrical signal of the second airflow sensor.
  • the present disclosure also provides a dust removal method, which includes: starting a dust purification system and a dust purification auxiliary device; the dust purification auxiliary device mixes an airflow containing an adsorbent with a dusty gas to be purified, and dust and adsorption Agents are combined to form large-sized dust particles; the dust purifier performs adsorption purification on large-sized dust particles.
  • the controller controls a fan and a valve assembly, respectively, and adjusts an air flow rate containing an adsorbent and an air flow rate at the fan.
  • the controller controls the backflush pulse valve to backflush the filter element.
  • the auxiliary device may further include a through pipe, and the receiving cavity and the gas mixing unit are respectively separated from the through pipe. The two ends are connected so as to provide a larger area for mixing the adsorbent particles with the dust-containing gas.
  • the gas mixing unit may use a three-way structure; and the dust-containing gas delivery pipe may use a conventional dust removal pipe.
  • One end of the through pipe is connected to the dust removing pipe of the dust purifier through the three-way structure.
  • the gas supply device may be selected from a conventional gas power source in the art, for example, a compressed air source; an arrangement manner in which the other end of the gas pipe extends into the adsorbent includes: the gas pipe passes through the accommodation The side walls and / or bottom and / or top of the cavity are connected to the receiving cavity and extend into the adsorbent of the receiving cavity.
  • the trachea is connected to the accommodating cavity through the bottom of the accommodating cavity, and extends into the powdery adsorbent of the accommodating cavity; the trachea is connected to the accommodating cavity through a side wall of the accommodating cavity.
  • the accommodating cavity extends into the powdery adsorbent of the accommodating cavity.
  • the tube wall of a part of the trachea extending to the inside of the receiving cavity is provided as a porous tube wall.
  • one end of a part of the pipe extending to the inside of the receiving cavity may also be provided as a porous spherical device.
  • a porous sponge ball device may be attached to one end of a part of the pipe extending to the inside of the receiving cavity.
  • the valve assembly may use a solenoid valve and a valve core.
  • the air pipe may also be provided as a pipe connecting two parts of a first pipe and a second pipe, wherein the first pipe is provided as a part of a pipe having a reserved port, and the second pipe A portion of the pipe is provided to extend to the receiving cavity.
  • the first pipe is provided as a part of a pipe connected to the air supply device
  • the second pipe is provided as a part of a pipe extending to the accommodation chamber.
  • a part of the pipe wall of the second pipe may be provided as a porous pipe wall.
  • the adsorbent in the containing cavity is a powdery or granular adsorbent, for example, it may be a nano-particle adsorbent.
  • the adsorbent may be selected from any one of amorphous silica, composite silica nano-adsorbent, and activated alumina.
  • the adsorbent is powdery amorphous silica.
  • the dust purification system fee includes the auxiliary device and the dust purifier, and the auxiliary device is independently provided outside the dust purifier. And connected to the dust purifier.
  • the auxiliary device may also be provided as a front part upstream of the filter component of the dust purifier, connected to the auxiliary device through a straight pipe through a dust-containing gas pipe, and integrated with the dust purifier. Dust purification system.
  • the airflow value passing through the air pipe and entering the accommodating cavity may be greater than or equal to the airflow value formed by the fan; optionally, it is equal to the airflow value formed by the fan and entering the filtering component (for example, the filter element).
  • the adsorbent may be selected from any one of amorphous silica, composite silica nano-adsorbent, and activated alumina.
  • the adsorbent is powdery amorphous silica.
  • the dust purifier includes a fan, a dust suction port, a filtering component, a back blowing pulse valve, and a dust collector.
  • the filter element includes a filter element, and the pore diameter of the filter element is about 5 ⁇ m to 10 ⁇ m.
  • the method includes:
  • the dust purification auxiliary device mixes the airflow containing the adsorbent with the dust-containing gas to be purified, and the dust is combined with the adsorbent to form large-sized dust particles;
  • the dust purifier performs adsorption purification on dust particles with large particle sizes.
  • the sensor component separately detects the air flow rate containing the adsorbent and the air flow rate generated by the fan of the dust purifier to the dust-containing gas, so as to adjust the operating parameters of the air supply device, so that the adsorbent powder or particles are dispersed by the air flow. Or diffusion; and the pressure difference detection module is configured to detect the working pressure difference of the dust purifier, and when the working pressure difference of the dust purifier exceeds a threshold value, the controller controls the back blowing pulse valve to the filter element based on the electrical signal of the pressure difference detection module. Perform backflushing.
  • the dust removal method includes:
  • Step 1 Start the fan of the dust purifier and suck fine dust into the dust removal pipe through the dust suction port;
  • Step 2 Simultaneously or subsequently, the auxiliary device is activated, and the airflow from the gas power source diffuses the adsorbent powder or particles in the accommodation cavity through the air pipe, and is caused to be blown into the straight pipe, tee structure and dust removal pipe with the air flow. , Adsorb the fine dust entering the dust removal pipe from the dust suction port, and form larger dust particles with it;
  • Step 3 When the larger dust particles flow to the filter part of the dust purifier, the dust particles are trapped to one side of the filter part;
  • Step 4 When the amount of dust particles trapped on one side reaches a certain amount, and the resistance of the filter component exceeds a set value, a backflush pulse valve in the dust purifier is activated to perform a backflush dust removal operation;
  • Step 5 The back-blown dust removal operation collects the filtered powder particles into a dust collector, and a dust removal process ends;
  • the value of the airflow blowing into the accommodating cavity may be greater than or equal to the value of the airflow entering the filter member formed by the fan. In one embodiment, the value of the airflow blown into the accommodating cavity is equal to the value of the airflow formed by the fan and entering the filter element.
  • the filtered powder in step 5 may include larger particle powder and fine powder.
  • a part of the pipe wall of the trachea may be a porous pipe wall, which helps to enhance the air flow to be blown into the adsorbent in the containing cavity, and makes the adsorbent diffusion effect better.
  • One end of a part of the pipeline in the trachea extending into the receiving cavity may further be provided with a porous spherical device, such as a sponge ball.
  • the anti-blow cleaning operation is a manual control or an electric control type, which is a force acting on the filter member in the reverse direction, so that the dust particles trapped on one side are dropped to the dust collecting cylinder.
  • the gas flow value from the gas power source may be 8-12 m / s.
  • a reverse blow pulse valve or a manually controlled reverse blow dust removal operation is adopted.
  • the sorbent may be amorphous silica.
  • the dust purification system including the auxiliary device adopts a reverse blow pulse valve or a manually controlled reverse blow dust removal operation.
  • FIG. 1 is a schematic structural diagram of a dust purification auxiliary device according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic structural diagram of a dust purification auxiliary device according to another embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a dust purification auxiliary device according to another embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a dust purification auxiliary device according to another embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a dust purification system including the dust purification auxiliary device according to an embodiment of the present disclosure.
  • a dust purification assisting device 2 provided by the present disclosure includes: a receiving cavity 22 adapted to communicate with a dust purifier for receiving an adsorbent 23; and an air supply device communicating with the receiving cavity 22, It is configured to provide an airflow to the containing cavity; wherein the adsorbent 23 can be mixed with the dust-containing gas to be purified under the driving of the airflow.
  • the accommodating cavity 22 is in communication with a dust-containing gas conveying pipe, such as the dust removing pipe 12, and a gas mixing unit is provided between the accommodating cavity and the dust-containing gas conveying pipe, and the dust-containing gas and the adsorbent-containing gas flow are mixed here.
  • a dust-containing gas conveying pipe such as the dust removing pipe 12
  • a gas mixing unit is provided between the accommodating cavity and the dust-containing gas conveying pipe, and the dust-containing gas and the adsorbent-containing gas flow are mixed here.
  • the gas supply device communicates with the receiving chamber through an air pipe; a valve assembly for controlling the gas flow is provided on the air pipe, for example, a solenoid valve and a valve core are selected as the valve assembly.
  • a valve assembly for controlling the gas flow is provided on the air pipe, for example, a solenoid valve and a valve core are selected as the valve assembly.
  • One end of the trachea is located in the receiving cavity and extends into the adsorbent
  • the accommodating chamber 22 contains an adsorbent; one end of the through pipe 21 is directly connected to the accommodating chamber 22, and the other end is connected to the dust removal pipe 12 of the dust purifier 1 through a three-way structure 4; One end of 26 is connected to the gas power source 3, and the other end passes through the bottom of the accommodating cavity 22 and extends to the inside of the accommodating cavity 22; a part of the tube wall of the gas tube 26 is provided as a porous tube wall; the solenoid valve 24 and the valve core 25 and The air pipe 26 is connected; the solenoid valve 24 and the valve core 25 are connected through the air pipe 26; the solenoid valve 24 and the valve core 25 cooperatively control whether the airflow from the gas power source 3 in the air pipe 26 enters the accommodation cavity 22 and enters the accommodation cavity 22 The gas flow rate is controlled, and the powdered adsorbent is controlled to enter the straight-through pipe 21, the three-way structure 4 or the dust removal pipe 12 in order.
  • one end of the air pipe 26 is connected to the gas power source 3, and the other end passes through the side wall of the receiving cavity 22 and extends to the inside of the receiving cavity 22;
  • the pipe wall of the pipe 26 is provided as a porous pipe wall, and a porous spherical device may be provided at one end of the trachea extending into the receiving cavity 22.
  • one end of the air pipe 26 is connected to the gas power source 3, and the other end passes through the top of the receiving cavity 22 and extends to the inside of the receiving cavity 22.
  • the air pipe 26 may be provided as a pipe formed by connecting the first pipe 261 and the second pipe 262, wherein the first pipe 261 is provided to connect gas power A part of the pipe of the source 3, and the second pipe 262 is provided as a part of the pipe extending to the receiving cavity.
  • the second pipe 262 may be a hose, so that the airflow from the pressurized air source 3 is blown by an overshoot diffused by blowing the powdery adsorbent.
  • the hose may vibrate or swing to play a certain role. Stirring action is beneficial to the diffusion of the adsorbent.
  • a dust purification system including an auxiliary device 2 includes a dust purifier and a dust purification auxiliary device, wherein the dust purification auxiliary device is in communication with the dust purifier; After the air flow of the adsorbent is mixed, it is purified by a dust purifier.
  • the adsorbent can be diffused into the dust purifier and mixed with the dust-containing gas to be purified in the dust purifier under the drive of the air supply device.
  • a gas mixing unit is provided between the containing cavity and the dust-containing gas delivery pipe, the gas mixing unit has a three-way structure that communicates between the containing cavity, the dust-containing gas delivery pipe, and the dust purifier.
  • the dust purifier includes: a fan to provide the negative pressure required for the filter element to work; a dust collecting cylinder configured to collect dust particles falling off the filter element; a filter element; and a reverse blow pulse valve for back blowing and cleaning the filter element.
  • the dust purification system further includes a controller and a sensing component electrically connected to the controller;
  • the sensor assembly includes at least: a first airflow sensor configured to detect a flow rate of the airflow containing the adsorbent, and the controller controls the valve assembly based on the electrical signal of the first airflow sensor to adjust the input airflow of the accommodation chamber; and a pressure difference detection module, It is set to detect the working pressure difference of the dust purifier.
  • the controller controls the backflushing pulse valve for backflushing the filter element based on the electric signal of the pressure difference detection module.
  • the sensing component further includes a second airflow sensor configured to detect the airflow at the fan, and the controller controls the fan speed based on the electrical signal of the second airflow sensor.
  • the auxiliary device 2 is independently provided on the outside of the dust purifier 1 and is connected to the dust purifier 1.
  • the receiving cavity 22 contains an adsorbent, such as a powdery or nano-sized particulate adsorbent; One end is directly connected to the receiving cavity 22, and the other end is connected to the dust removal pipe 12 through the tee structure 4.
  • One end of the air pipe 26 is connected to the gas power source 3, and the other end passes through the bottom of the receiving cavity 22 and extends to the receiving cavity 22 Inside; part of the pipe wall of the air pipe 26 is provided as a porous pipe wall; the solenoid valve 24 and the valve core 25 are connected to the air pipe 26; the solenoid valve 24 and the valve core 25 are connected through the air pipe 26; the solenoid valve 24 and the valve core 25 cooperate It is controlled whether the airflow from the gas power source 3 in the air pipe 26 enters the containing cavity 22 and the air flow rate into the containing cavity 22, and then controls the powdery adsorbent to enter the straight pipe 21, the three-way structure 4 or the dust removal pipe 12 in order.
  • a dust purification system including an auxiliary device 2 may be provided as a front part upstream of a filter member 13 (for example, a filter element) of the dust purifier 1.
  • the dust removal duct 12 is connected to the through duct 21 of the auxiliary device 2.
  • the auxiliary device 2 and the dust purifier 1 are provided as an integrated dust purification system.
  • auxiliary device 2 The components included in the auxiliary device 2 may be the same as those shown in FIGS. 1-5 and the connection manner.
  • the accommodating cavity 22 is used to store the adsorbent 23; valve components, such as the solenoid valve 24 and the valve core 25, cooperate to control the air flow from the gas power source; the air flow of compressed air makes the accommodation
  • the adsorbent powder or particles in the cavity 22 diffuse and are blown into the straight pipe 21, the three-way structure 4 and the dust removal pipe 12 in order with the airflow, so that the adsorbent powder or particles (for example, silica powder) can be made.
  • the airflow and fine dust-laden airflow sucked into the dust-removal duct 12 through the dust suction port 11 meet at the straight-through duct 21 or tee structure 4 or the dust-removal duct 12.
  • the two airflows are mixed, so that the adsorbent powder and fine dust are fully adsorbed.
  • Large particles of dust are formed, and then pass through the dust removal pipe 12 to the filter member 13 in the dust purifier 1, and are trapped on the side of the filter member.
  • the resistance of the filter member 13 exceeds the setting
  • the backflush pulse valve in the dust purifier 1 is started, and the backflushing and dust removal operation is automatically performed, and the large-particle dust that has been adsorbed with the adsorbent powder or particles is blown back to the dust collection.
  • the frequency of dust removal can be set according to the actual ash value; the process of back blowing dust removal can also be performed manually.
  • a threshold value such as 800Pa
  • the device shown in FIG. 1 or FIG. 5 adopts a dust removal method including the auxiliary device shown in FIG. 1 or 5 or the dust purification system shown in the method.
  • the method includes: starting the dust purification system and the dust purification auxiliary device;
  • the air stream containing the adsorbent is mixed with the dust-containing gas to be purified, and the dust is combined with the adsorbent to form large-sized dust particles;
  • the dust purifier performs adsorption purification on the large-sized dust particles.
  • the controller controls the fan and the valve assembly respectively, and adjusts the air flow rate containing the adsorbent and the air flow rate at the fan.
  • the controller controls the backflushing pulse valve to backflush the filter element.
  • the method may include the following steps:
  • Step 1 Start the fan of the dust purifier 1 and suck fine dust into the dust removal pipe 12 through the dust suction port 11;
  • Step 2 Simultaneously or subsequently, the auxiliary device 2 is started, and the airflow from the gas power source 3 passes through the air pipe 26 to diffuse the adsorbent powder or particles in the accommodation chamber 22 and is blown into the straight pipe 21 and tee structure with the airflow. 4 and the dust removal pipe 12, which adsorbs the fine dust entering the dust removal pipe 12 from the dust suction port 11 and forms larger dust particles therewith;
  • Step 3 When the larger dust particles flow to the filter member 13 of the dust purifier 1, the dust particles are trapped to the filter member 13 side;
  • Step 4 When the amount of dust particles trapped on one side reaches a certain amount, and the resistance of the filter member 13 exceeds a set value, the backflush pulse valve in the dust purifier 1 starts to perform the backflushing operation;
  • Step 5 The back-purge ash cleaning operation collects the filtered powder particles into the dust collecting drum 14, and a dust removal process ends;
  • the value of the airflow blown into the accommodating cavity may be greater than or equal to the value of the airflow into the filter element formed by the fan. In one embodiment, the value of the airflow blown into the accommodating cavity is equal to the value of the airflow into the filter member formed by the fan.
  • the powder filtered in step 5 may include larger particle powder and fine powder.
  • a part of the pipe wall of the air pipe 26 may be a porous pipe wall, which helps to enhance the air flow to be blown into the adsorbent in the containing cavity, and makes the adsorbent diffusion effect better.
  • a part of a pipe in the trachea extending into the receiving cavity may further be provided with a porous spherical device, such as a sponge ball.
  • the anti-blow cleaning operation is a manual control or an electric control type, which is a force acting on the filtering member 13 in a reverse direction, so that the dust particles trapped on one side fall to the dust collecting cylinder 14.
  • the airflow value from the aerodynamic source can be 8-12m / s.
  • the adsorbent is amorphous silica.
  • the dust purification system including the auxiliary device 2 adopts a reverse blow pulse valve or a manually controlled reverse blow dust removal operation.
  • the set value of the pressure difference can be adjusted or changed according to the actual application.
  • the sensor is installed on the inner and outer surfaces of the filter member (for example, the filter element) of the dust purifier, and is used to measure the inner and outer pressure value.
  • an integrated purifier panel in the related art may also be used, and the panel includes a control device, a pressure display device, and a sensor.
  • the auxiliary device provided by any one of the embodiments described in the present disclosure is adopted.
  • the suction force of the dust purifier is set to 250-300mbar
  • the volume flow rate V of the gas in a standard state is 800-900Nm 3 / h
  • diameter d of the suction pipe 80mm the average pressure P m is compressed 0.5-0.6Mpa
  • the average temperature T m is in the dust duct 25 °C
  • the gas density ⁇ is the dust 1831.5kg / m 3.
  • the gas velocity in the dust removal pipe is calculated to be 8-12m / s.
  • V volume flow of gas in standard state, Nm 3 / h
  • G mass flow rate of gas, kg / h
  • the advantage of using the above auxiliary device is that the auxiliary device has a simple structure and low manufacturing cost.
  • the dust purifier is well improved.
  • the filter dust removal effect of the filter element (for example, the filter element) in the medium improves the service life of the filter element (for example, the filter element), and also reduces the cost of frequent replacement of the filter element, which greatly reduces or avoids the pollution of fine dust to the environment.
  • the dust purification auxiliary device, the dust purification system, and the dust removal method using the dust purification system can be applied to the semiconductor LED panel and the solar cell manufacturing process during the scoring process.
  • Effective adsorption and removal of large amounts of dust such as fine dust generated by laser or mechanical scribing. It is especially used in the manufacture of thin-film solar cells, such as copper-indium-gallium-selenium thin-film solar cells.
  • Laser and mechanical scribing are used to divide the battery section into a dust purification system that generates a large amount of fine dust.
  • the auxiliary device allows the dust to be adsorbed before passing through the filtering component, such as the filter element, to be mixed and adsorbed with the adsorbent dispersed in the gas mixing unit, such as the tee structure and nearby, to form larger particles of dust,
  • the adsorption effect of the filter element (for example, the filter element) of the purifier is greatly improved, which helps the blowback filter element to perform the ash cleaning operation, so that it is easier to collect the dust trapped on the outside of the filter element, and improve the service life of the filter element. Save costs.
  • the auxiliary device makes the removal effect of fine dust more ideal, greatly reduces the degree of pollution of the workshop environment and air generated by the scoring operation, and is more conducive to reducing dust for the manufacture of core boards or LED panels for solar cell manufacturing. Influence of medium substrate performance.

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  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

一种粉尘净化辅助装置、粉尘净化系统及其方法。该粉尘净化辅助装置(2)包括适于与粉尘净化器(1)连通的容纳腔(22)，设置为容纳吸附剂(23)；与容纳腔(22)连通的供气装置，设置为对容纳腔（22）提供气流；其中，吸附剂（23）能够在气流的驱动下与待净化的含尘气体进行混合。该粉尘净化系统，包括粉尘净化器（1）和粉尘净化辅助装置（2），粉尘净化辅助装置（2）与粉尘净化器（1）连通；含尘气体与含吸附剂（23）的气流混合后由粉尘净化器（1）进行净化。

Description

一种粉尘净化辅助装置、粉尘净化系统及其方法
相关申请的交叉引用
本申请要求于2018年8月3日提交的申请号为201810878016.0的中国专利申请的优先权，其全部内容通过引用结合在本文中。
技术领域
本公开属于除尘装置技术领域，涉及一种粉尘净化装置、粉尘净化系统及其方法。
背景技术
近年来，薄膜太阳能技术兴起。由于薄膜太阳能电池具有重量轻、成本低、易安装等优点，一经提出便有了迅猛的发展。由于铜铟镓硒薄膜太阳电池具有较高的光电转换效率、较好的稳定性及抗辐射等诸多优势，已成为了最有发展前途的薄膜光伏器件。
然而，在铜铟镓硒薄膜太阳能电池的制造中，为了让太阳能电池在户外工作环境下具有有效的产电效率，又能避免因外来异物对电池板受光面的遮挡导致无法产生光电效应，在薄膜太阳能电池的制造中，需要对电池板进行细分电池节，以保证电池板的产电效率。通常采用激光和机械刻划这两种方式来实现细分电池节过程。但是，激光和机械刻划过程会产生大量细微的粉尘颗粒，因此除尘处理在薄膜太阳能电池制造中至关重要。
同样，在半导体行业中，对LED面板进行激光刻蚀过程也会产生大量的细微粉尘。粉尘净化装置的高效除尘对LED面板的制造也具有重要意义。
相关技术中常见的粉尘净化器通常由风机、过滤装置和集尘装置三部分组成，粉尘净化器主要通过风机或辅助吹扫机构将基片表面的粉尘再次吹扫，以助于吸尘罩或过滤系统吸附，其结构和控制系统较为复杂。虽然，其中的滤芯或过滤装置能有效地过滤大部分细微粉尘，但还存在粒径较小的细微粉尘堵塞滤孔或粘附在滤芯上不易掉落，导致滤芯需要频繁更换，以至于增加成本的问题。细微粉尘极易漂浮在空气中对车间环境和空气产生污染。
发明内容
第一方面，本公开提供了一种粉尘净化辅助装置，包括：适于与所述粉尘净化器连通的容纳腔，用于容纳吸附剂；与所述容纳腔连通的供气装置，设置为向所述容纳腔提供气流；其中，吸附剂能够在所述气流的驱动下与待净化的含尘气体进行混合。
在一个实施例中，所述含尘气体由含尘气体输送管输送；所述容纳腔与所述含尘气体输送管连通，且所述容纳腔与所述含尘气体输送管之间设有气体混合单元，所述含尘气体与含吸附剂的气流在所述气体混合单元混合。
所述供气装置与所述容纳腔之间通过气管连通；所述气管上设有控制气体流量的阀 门组件。
所述气管的一端位于所述容纳腔内并延伸至吸附剂中。
所述吸附剂为粉末状或颗粒状吸附剂，例如，可以为纳米颗粒状吸附剂。在一实施例中地，所述吸附剂可以选自无定形二氧化硅、复合型二氧化硅纳米吸附剂和活性氧化铝中的任意一种。作为例子，吸附剂可以为粉末状无定形二氧化硅粉末。
第二方面，本公开提供一种粉尘净化辅助方法，所述方法包括：启动供气装置；供气装置的气流吹动吸附剂，以将吸附剂输送至待净化的含尘气体处，粉尘与吸附剂结合形成大粒径粉尘颗粒。
第三方面，本公开提供一种粉尘净化系统，其包括粉尘净化器和所述粉尘净化辅助装置，其中，所述粉尘净化辅助装置与粉尘净化器连通；含尘气体与含吸附剂的气流混合后由粉尘净化器进行净化。
在一个实施例中，在所述粉尘净化系统中，吸附剂能够在所述供气装置的气流驱动下，扩散至所述粉尘净化器中，与所述粉尘净化器中的待净化含尘气体进行混合。
当所述容纳腔与所述含尘气体输送管之间设置气体混合单元时，所述气体混合单元为连通在所述容纳腔、所述含尘气体输送管以及所述粉尘净化器之间的三通结构。
所述粉尘净化器包括：滤芯，以及，对滤芯进行反吹清灰的反吹脉冲阀。
所述粉尘净化器包括：风机，为滤芯提供工作所需的负压；集尘筒，设置为收集从滤芯处脱落的粉尘颗粒。
所述粉尘净化系统还包括控制器以及与所述控制器电连接的传感组件。
其中，所述传感器组件至少包括：第一气流传感器和压差检测模块。
第一气流传感器设置为检测含吸附剂的气流流量，所述控制器基于所述第一气流传感器的电信号控制阀门组件，以调节容纳腔的输入气流。压差检测模块设置为检测所述粉尘净化器工作压差，当粉尘净化器工作压差超过阈值时，所述控制器基于所述压差检测模块的电信号控制所述反吹脉冲阀对所述滤芯进行反吹清灰。
当粉尘净化器包含风机时，所述传感组件还包括设置为检测风机处气流流量的第二气流传感器，所述控制器基于所述第二气流传感器的电信号控制所述风机转速。
第四方面，本公开还提供一种除尘方法，其包括：启动粉尘净化系统和粉尘净化辅助装置；所述粉尘净化辅助装置将含吸附剂的气流与待净化的含尘气体混合，粉尘与吸附剂结合形成大粒径粉尘颗粒；所述粉尘净化器对大粒径粉尘颗粒进行吸附净化。
在一个实施例中，所述粉尘净化系统和所述粉尘净化辅助装置启动后，所述控制器分别控制风机和阀门组件，调节含吸附剂的气流流量和风机处的气流流量。
所述粉尘净化器对大粒径粉尘颗粒进行吸附净化过程中，当所述粉尘净化器工作压差超过设定阈值时，所述控制器控制所述反吹脉冲阀对滤芯进行反吹清灰。
关于上文第一方面，在本公开所述粉尘净化辅助装置的一种实施方式中，所述辅助装置还可以包括直通管道，所述容纳腔和所述气体混合单元分别地与所述直通管道的两端相连通，以便于为吸附剂颗粒与含尘气体的混合提供更大的区域。
具体地，所述气体混合单元可以选用三通结构；所述含尘气体输送管可以选用常规的除尘管道。所述直通管道的一端通过所述三通结构与粉尘净化器的除尘管道相连接。
所述气道的一端与供气装置连通，另一端位于所述容纳腔内，并延伸至吸附剂中。具体地，所述供气装置可以选用本领域常规的气体动力源，例如，压力空气源；所述气管的另一端延伸至所述吸附剂中的设置方式包括：所述气管穿过所述容纳腔的侧壁和/或底部和/或顶部连接至所述容纳腔，并延伸至所述容纳腔的吸附剂中。任选地，所述气管穿过所述容纳腔的底部连接至所述容纳腔，并延伸至所述容纳腔的粉末状吸附剂中；所述气管穿过所述容纳腔的侧壁连接至所述容纳腔，并延伸至所述容纳腔的粉末状吸附剂中。
在一实施例中，所述延伸至容纳腔内部的一部分气管的管壁被设置为多孔状管壁。任选地，所述延伸至所述容纳腔内部的一部分管道的一端还可以设置为多孔球状装置。另外，任选地，所述延伸至所述容纳腔内部的一部分管道的一端可以附加一个多孔海绵球装置。
所述阀门组件可以选用电磁阀和阀芯。
可替代性地，所述气管还可以被设置为第一管道和第二管道两部分相连接的管道，其中，所述第一管道被设置为具有预留口的一部分管道，所述第二管道被设置为延伸至所述容纳腔的一部分管道。其中，所述第一管道被设置为连接所述供气装置的一部分管道，所述第二管道被设置为延伸至所述容纳腔的一部分管道。
在一实施例中，所述第二管道的一部分管道的管壁可以设置为多孔状管壁。
所述容纳腔中的吸附剂为粉末状或颗粒状吸附剂，例如，可以为纳米颗粒状吸附剂。在一实施例中，所述吸附剂可以选自无定形二氧化硅、复合型二氧化硅纳米吸附剂和活性氧化铝中的任意一种。可选地，所述吸附剂为粉末状无定形二氧化硅。
关于上文第三方面，在本公开所述粉尘净化系统的一种实施方式中，所述粉尘净化系统费包括所述辅助装置与粉尘净化器，所述辅助装置独立地设置在粉尘净化器外侧，并且与所述粉尘净化器相连接。
可替代性地，所述辅助装置还可以设置成粉尘净化器过滤部件上游的前置部件，通过含尘气体管道与所述辅助装置通过直通管道相连接，并且与粉尘净化器设置为集成一体化的粉尘净化系统。
其中，穿过所述气管进入所述容纳腔的气流值可以大于或等于风机形成的气流值；可选地，等于所述风机形成的进入过滤部件(例如，滤芯)的气流值。
在一实施例中，所述吸附剂可以选自无定形二氧化硅、复合型二氧化硅纳米吸附剂和活性氧化铝中的任意一种。可选地，所述吸附剂为粉末状无定形二氧化硅。
所述粉尘净化系统中，所述粉尘净化器包括风机、吸尘口、过滤部件、反吹脉冲阀和集尘筒。其中所述过滤部件包括滤芯，滤芯孔径大约为5μm～10μm。
关于上文第四方面，本公开所述一种采用所述包括所述辅助装置的粉尘净化系统的除尘方法的一种实施方式中，其包括：
启动粉尘净化系统和粉尘净化辅助装置；
所述粉尘净化辅助装置将含吸附剂的气流与待净化的含尘气体混合，粉尘与吸附剂结合形成大粒径粉尘颗粒；
所述粉尘净化器对大粒径粉尘颗粒进行吸附净化。
具体地，通过传感器组件分别检测含吸附剂的气流流量以及粉尘净化器的风机对所述含尘气体产生的气流流量，以调节供气装置的运行参数，使吸附剂粉末或颗粒被气流吹散或弥散；以及通过所述压差检测模块，设置为检测粉尘净化器工作压差，当粉尘净化器工作压差超过阈值时，控制器基于压差检测模块的电信号控制反吹脉冲阀对滤芯进行反吹清灰。
关于上文第四方面的另一种实施方式中，所述除尘方法包括：
步骤一、启动所述粉尘净化器的风机，通过所述吸尘口将细微粉尘吸入除尘管道；
步骤二、同时或者随后地，启动所述辅助装置，来自气体动力源的气流经过气管把容纳腔中吸附剂粉末或颗粒扩散，并使之随气流被吹进直通管道、三通结构和除尘管道，吸附自吸尘口进入除尘管道的细微粉尘，与之形成较大的粉尘颗粒；
步骤三、当所述较大的粉尘颗粒流动到所述粉尘净化器的过滤部件，所述粉尘颗粒被截留至过滤部件一侧；
步骤四、当被截留在一侧的粉尘颗粒达到一定量，所述过滤部件的阻力超过设定值时，所述粉尘净化器中的反吹脉冲阀启动，执行反吹清灰操作；
步骤五、反吹清灰操作将被过滤的粉末颗粒收集至集尘筒中，一个除尘过程结束；以及
依次循环执行步骤一至五，收集粉尘。
步骤二中，所述吹进容纳腔的气流值可以大于或等于所述风机形成的进入过滤部件气流值。在一个实施例中，所述吹进容纳腔的气流值等于所述风机形成的进入过滤部件的气流值。
步骤五中所述被过滤的粉末可以包括较大颗粒粉末和细微粉末。
所述气管的一部分管壁可以为多孔状管壁，有助于增强即将吹进容纳腔中吸附剂的气流，使吸附剂扩散效果更好。
所述气管中延伸入所述容纳腔中的一部分管道的一端还可以设置一个多孔球状装置，例如海绵球。
所述反吹清灰操作是手动控制或电控型，是反向作用至所述过滤部件的作用力，使被截留在一侧的粉尘颗粒掉落至所述集尘筒。
当所述粉尘净化器过滤部件内外两侧的压差表值达到设定值，例如800Pa时，启动反吹清灰操作。
所述来自气体动力源的气流值可以为8-12m/s。
在所述除尘方法或所述粉尘净化系统中，采用反吹脉冲阀或手动控制反吹清灰操作。
所述吸附剂可以为无定形二氧化硅。
所述包括所述辅助装置的粉尘净化系统采用反吹脉冲阀或手动控制反吹清灰操作。
附图说明
参照以下附图，将有助于理解本公开所述的设置为粉尘净化辅助装置以及包括所述辅助装置的粉尘净化系统的结构特征、目的及优点。需要说的是，附图所作的示例性说明仅仅用来解释说明本公开所述辅助装置、所述粉尘净化系统、粉尘净化辅助方法以及除尘方法，并非限制性说明。
图1为本公开一种实施方式提供的粉尘净化辅助装置的结构示意图。
图2为本公开另一种实施方式提供的粉尘净化辅助装置的结构示意图。
图3为本公开另一种实施方式提供的粉尘净化辅助装置的结构示意图。
图4为本公开另一种实施方式提供的粉尘净化辅助装置的结构示意图。
图5为本公开一种实施方式提供的包括所述粉尘净化辅助装置的粉尘净化系统的结构示意图。
具体实施方式
下面结合附图和实施例对本公开申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本公开所述的相关装置或系统，而非对本公开所做的限定。另外，还需要说明的是，为了便于描述，附图中仅示出了与本公开相关的部分。
需要说明的是，在不冲突的情况下，本公开申请中的实施例及实施例中的特征可以进行相互组合或替代性选择。下面将参考附图并结合实施例来详细说明本公开申请。
如图1所示，本公开提供的一种粉尘净化辅助装置2，其包括：适于与粉尘净化器连通的容纳腔22，用于容纳吸附剂23；与容纳腔22连通的供气装置，设置为对所述容纳腔提供气流；其中，吸附剂23能够在所述气流的驱动下与待净化的含尘气体进行混合。
容纳腔22与含尘气体输送管连通，例如除尘管道12，且容纳腔与含尘气体输送管之间设有气体混合单元，含尘气体与含吸附剂的气流于此处混合。
供气装置与容纳腔之间通过气管连通；该气管上设有控制气体流量的阀门组件，例如，选用电磁阀和阀芯作为阀门组件。气管的一端位于容纳腔内，并延伸至吸附剂中
在图1所示的实施例中，容纳腔22包含吸附剂；直通管道21的一端直接与容纳腔22相连接，另一端通过三通结构4与粉尘净化器1的除尘管道12相连接；气管26的一端与气体动力源3相连接，另一端穿过容纳腔22的底部，延伸至容纳腔22内部；一部分气管26的管壁被设置为多孔状管壁；电磁阀24和阀芯25与气管26相连接；电磁阀24与阀芯25通过气管26相连接；所述电磁阀24和阀芯25协同控制气管26中的来自气体动力源3的气流是否进入容纳腔22以及进入容纳腔22的气流量，进而控制粉末状吸附剂依次进入直通管道21、三通结构4或除尘管道12。
如图2所示，本公开提供的另一种粉尘净化辅助装置2，气管26的一端与气体动力源3相连接，另一端穿过容纳腔22的侧壁，延伸至容纳腔22内部；一部分管道26的管壁被设置为多孔状管壁，并且在延伸入容纳腔22的气管的一端还可以设置一个多孔球状装置。
如图3所示，本公开提供的另一种粉尘净化辅助装置2，气管26的一端与气体动力源3相连接，另一端穿过容纳腔22的顶部，延伸至容纳腔22内部。
如图4所示，本公开提供的另一种粉尘净化辅助装置2，气管26可以设置为第一管道261与第二管道262连接组成的管道，其中，第一管道261被设置为连接气体动力源3的一部分管道，第二管道262被设置为延伸至容纳腔的一部分管道。在一实施例中，第二管道262可以为软管，以便于来自于压力空气源3的气流在吹动粉末状吸附剂扩散的过冲中，该软管可震动或摆动，起到一定的搅动作用，有利于吸附剂的扩散。
如图1所示，本公开一种实施方式提供的包括辅助装置2的粉尘净化系统，包括粉尘净化器和粉尘净化辅助装置，其中，粉尘净化辅助装置与粉尘净化器连通；含尘气体与含吸附剂的气流混合后由粉尘净化器进行净化。粉尘净化系统中，吸附剂能够在供气装置的气流驱动下，扩散至粉尘净化器中，与粉尘净化器中的待净化含尘气体进行混合。当容纳腔与含尘气体输送管之间设置气体混合单元时，气体混合单元为连通在容纳腔、含尘气体输送管以及粉尘净化器之间的三通结构。粉尘净化器包括：风机，为滤芯提供工作所需的负压；集尘筒，设置为收集从滤芯处脱落的粉尘颗粒；滤芯；以及对滤芯进行反吹清灰的反吹脉冲阀。
粉尘净化系统还包括控制器以及与控制器电连接的传感组件；
其中，传感器组件至少包括：第一气流传感器，设置为检测含吸附剂的气流流量，控制器基于第一气流传感器的电信号控制阀门组件，以调节容纳腔的输入气流；以及压差检测模块，设置为检测粉尘净化器工作压差，当粉尘净化器工作压差超过阈值时，控制器基于压差检测模块的电信号控制反吹脉冲阀对滤芯进行反吹清灰。
当粉尘净化器包含风机时，传感组件还包括设置为检测风机处气流流量的第二气流传感器，控制器基于第二气流传感器的电信号控制风机转速。
如图1所示，辅助装置2独立地设置在粉尘净化器1外侧，并且与粉尘净化器1相连接，容纳腔22包含吸附剂，例如粉末状或纳米级颗粒状吸附剂；直通管道21的一端直接与容纳腔22相连接，另一端通过三通结构4与除尘管道12相连接；气管26的一端与气体动力源3相连接，另一端穿过容纳腔22的底部，延伸至容纳腔22内部；一部分气管26的管壁被设置为多孔状管壁；电磁阀24和阀芯25与气管26相连接；电磁阀24与阀芯25通过气管26相连接；电磁阀24和阀芯25协同控制气管26中的来自气体动力源3的气流是否进入容纳腔22以及进入容纳腔22的气流量，进而控制粉末状吸附剂依次进入直通管道21、三通结构4或除尘管道12。
如图5所示，本公开另一种实施方式提供的包括辅助装置2的粉尘净化系统，辅助装置2可以设置成粉尘净化器1的过滤部件13(例如，滤芯)上游的前置部件，通过除 尘管道12与辅助装置2的直通管道21相连接。并且辅助装置2与粉尘净化器1设置为集成一体化的粉尘净化系统。
其中，辅助装置2包括的部件与图1-5所示部件和连接方式可以相同。
为进一步阐释本公开提供的用于粉尘净化系统的辅助装置及包括该辅助装置的粉尘净化系统的优势，将在下文中进一步阐述辅助装置的工作原理。
参考如图1-4所示的结构示意图，容纳腔22用于存储吸附剂23；阀门组件，例如电磁阀24和阀芯25，协同作用控制来自气体动力源的气流；压缩空气的气流使容纳腔22中的吸附剂粉末或颗粒扩散，并随气流依次吹进直通管道21、三通结构4和除尘管道12中，由此便可以使带吸附剂粉末或颗粒(例如，二氧化硅粉末)的气流与通过吸尘口11吸入除尘管道12中的携带细微粉尘的气流在直通管道21或三通结构4或除尘管道12处会合，两股气流混合，从而便于吸附剂粉末与细微粉尘充分吸附形成大颗粒粉尘，然后经过除尘管道12到粉尘净化器1中的过滤部件13，被并截留到过滤部件一侧，在粉尘净化器1运行中过滤部件13(例如，滤芯)的阻力超过设定值时，粉尘净化器1中的反吹脉冲阀启动，自动进行反吹清灰操作，把通过与吸附剂粉末或颗粒吸附后的大颗粒粉尘反吹掉落到集尘筒14中，清灰的频率可以根据实际灰量值来设定；反吹清灰过程也可以手动进行，当观察到粉尘净化器1面板中压差值达到阈值时，例如800Pa，还可以选择手动反吹清灰，按下手动清灰按钮进行手动反吹清灰操作。
如图1或图5所示的装置，采用包括图1或5所示辅助装置或所示粉尘净化系统的除尘方法，该方法包括：启动粉尘净化系统和粉尘净化辅助装置；粉尘净化辅助装置将含吸附剂的气流与待净化的含尘气体混合，粉尘与吸附剂结合形成大粒径粉尘颗粒；粉尘净化器对大粒径粉尘颗粒进行吸附净化。
粉尘净化系统和粉尘净化辅助装置启动后，控制器分别控制风机和阀门组件，调节含吸附剂的气流流量和风机处的气流流量。
粉尘净化器对大粒径粉尘颗粒进行吸附净化过程中，当所述粉尘净化器工作压差超过设定阈值时，所述控制器控制所述反吹脉冲阀对滤芯进行反吹清灰。
在一个示例性实施例中，该方法可包括以下步骤：
步骤一、启动粉尘净化器1的风机，通过吸尘口11将细微粉尘吸入除尘管道12；
步骤二、同时或者随后地，启动辅助装置2，来自气体动力源3的气流经过气管26把容纳腔22中吸附剂粉末或颗粒扩散，并使之随气流被吹进直通管道21、三通结构4和除尘管道12，吸附自吸尘口11进入除尘管道12的细微粉尘，与之形成较大的粉尘颗粒；
步骤三、当较大的粉尘颗粒流动到粉尘净化器1的过滤部件13，粉尘颗粒被截留至过滤部件13一侧；
步骤四、当被截留在一侧的粉尘颗粒达到一定量，过滤部件13的阻力超过设定值时，粉尘净化器1中的反吹脉冲阀启动，执行反吹清灰操作；
步骤五、反吹清灰操作将被过滤的粉末颗粒收集至集尘筒14中，一个除尘过程结 束；以及
依次循环执行步骤一至五，收集粉尘。
在步骤二中，吹进容纳腔的气流值可以大于或等于风机形成的进入过滤部件气流值。在一个实施例中，吹进容纳腔的气流值等于风机形成的进入过滤部件的气流值。
步骤五中被过滤的粉末可以包括较大颗粒粉末和细微粉末。
气管26的一部分管壁可以为多孔状管壁，有助于增强即将吹进容纳腔中吸附剂的气流，使吸附剂扩散效果更好。
气管中延伸入容纳腔中的一部分管道的一端还可以设置一个多孔球状装置，例如海绵球。
反吹清灰操作是手动控制或电控型，是反向作用至过滤部件13的作用力，使被截留在一侧的粉尘颗粒掉落至集尘筒14。
当粉尘净化器过滤部件内外两侧的压差表值达到设定值，例如800Pa时，启动反吹清灰操作。
来自气体动力源的气流值可以为8-12m/s。
在所示的除尘方法或粉尘净化系统中，采用反吹脉冲阀或手动控制反吹清灰操作。
作为例子，吸附剂为无定形二氧化硅。
包括辅助装置2的粉尘净化系统采用反吹脉冲阀或手动控制反吹清灰操作。
其中，该压力差设定值是可以根据实际应用调整或改变。结合相关技术中的压力传感器装置，将传感器安装在粉尘净化器的过滤部件(例如，滤芯)的内外表面，用于测定内外压力值。此外，还可以采用相关技术中的集成式净化器面板，该面板包括控制装置、压力显示装置和传感器。
在薄膜太阳能电池制造中，采用本公开描述的任意一种实施方式所提供的辅助装置，通常设置粉尘净化器的吸力为250-300mbar，气体在标准状态下的体积流量V为800-900Nm 3/h，吸尘管道的直径d为80mm，压缩空气的平均气压P m为0.5-0.6Mpa，除尘管道内的平均气温T m为25℃，粉尘气体的密度ρ为1831.5kg/m 3。依据下文所示的气管通公式，计算得到除尘管道内的气体流速为8-12m/s。
气管通公式如下文所示：
Figure PCTCN2018111229-appb-000001
式(1)中：V——气体在标准状态下的体积流量，Nm 3/h
d——管道内径，mm
Figure PCTCN2018111229-appb-000002
由
Figure PCTCN2018111229-appb-000003
得
Figure PCTCN2018111229-appb-000004
式(2)中：ω 0——管内气体在标准状态下的体积流量，m/s
G——气体的质量流量，kg/h
ρ——气体在标准状态下的密度，kg/m 3
根据气管内的流速通用公式将公式(2)(3)进行压力和温度的修正，进一步得到实际气流的流速公式得：
Figure PCTCN2018111229-appb-000005
或
Figure PCTCN2018111229-appb-000006
式(4)-(5)中：t m——管内气体的平均温度，℃
p m——管内气体的平均压力，Mpa
ω R——气体实际流速，m/s。
与相关技术相比较，采用上述辅助装置的优势在于：该辅助装置结构简单，制造成本低，通过利用辅助装置的构造，利用粉末状或颗粒状吸附剂的特性，很好的改善了粉尘净化器中的过滤部件(例如，滤芯)的过滤除尘效果，提高过滤部件(例如，滤芯)的使用周期，也降低了频繁更换滤芯的成本，大幅度降低或避免了细微粉尘对环境的污染。
本公开的多种实施方式提供的用于粉尘净化辅助装置、所述粉尘净化系统以及采用所述粉尘净化系统的除尘方法均可以应用于半导体LED面板和太阳能电池制造行中刻划过程中产生的大量粉尘的有效吸附和清除，例如激光或机械刻划产生的细微粉尘。尤其应用于薄膜太阳能电池制造中，例如铜铟镓硒薄膜太阳能电池制造中，采用激光和机械刻划来划分电池节过程中产生大量细微粉尘的粉尘净化系统。
一方面，所述辅助装置使粉尘吸附在经过滤部件之前，例如滤芯，先与弥散在所述气体混合单元，例如三通结构及附近处的吸附剂混合、吸附，形成较大颗粒的粉尘，再经过滤芯，极大地改善了净化器过滤部件(例如，滤芯)的吸附效果，有助于反吹滤芯执行清灰操作，使更容易收集被截留在滤芯外侧的粉尘，提高滤芯的使用寿命，进而节约成本。
另一方面，所述辅助装置使细微粉尘的清除效果更理想，大幅度降低了刻划操作对车间环境和空气产生的污染程度，更有利于降低粉尘对于太阳能电池制造中芯板或LED面板制造中基板性能的影响。
以上描述仅为本公开的示例性实施方式以及对所运用技术原理的说明。本领域技术 人员应当理解，本公开申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离本公开构思的情况下，由上述技术特征或其等同特征进行任意组合或替代性选择而形成的其它技术方案。

Claims (20)

  1. 一种粉尘净化辅助装置，包括：
    适于与所述粉尘净化器连通的容纳腔，用于容纳吸附剂；
    与所述容纳腔连通的供气装置，设置为向所述容纳腔提供气流；
    其中，吸附剂能够在所述气流的驱动下与待净化的含尘气体进行混合。
  2. 根据权利要求1所述的粉尘净化辅助装置，其中，所述含尘气体由含尘气体输送管输送；
    所述容纳腔与所述含尘气体输送管连通，且所述容纳腔与所述含尘气体输送管之间设有气体混合单元，所述含尘气体与含吸附剂的气流在所述气体混合单元混合。
  3. 根据权利要求1所述的粉尘净化辅助装置，其中，所述供气装置与所述容纳腔之间通过气管连通；所述气管上设有控制气体流量的阀门组件。
  4. 根据权利要求1所述的粉尘净化辅助装置，其中，所述气管的一端位于所述容纳腔内并延伸至吸附剂中。
  5. 根据权利要求4所述的粉尘净化辅助装置，其中，所述气管的所述一端穿过所述容纳腔的底部连接至所述容纳腔，并延伸至所述容纳腔的粉末状吸附剂中；所述气管穿过所述容纳腔的侧壁连接至所述容纳腔，并延伸至所述容纳腔的粉末状吸附剂中。
  6. 根据权利要求4所述的粉尘净化辅助装置，其中，所述延伸至容纳腔内的一部分气管的管壁被设置为多孔状管壁，所述延伸至所述容纳腔内的一部分气管的一端设置为多孔球状装置，并附加一个多孔海绵球装置。
  7. 根据权利要求1-6中任一项所述的粉尘净化辅助装置，其中，所述吸附剂选自无定形二氧化硅、复合型二氧化硅纳米吸附剂和活性氧化铝中的任意一种。
  8. 一种粉尘净化辅助方法，包括：
    启动供气装置；
    供气装置的气流吹动吸附剂，以将吸附剂输送至待净化的含尘气体处，粉尘与吸附剂结合形成大粒径粉尘颗粒。
  9. 一种粉尘净化系统，其包括粉尘净化器，其中，所述粉尘净化系统还包括权利要求1-6中任意一项所述的粉尘净化辅助装置，所述粉尘净化辅助装置与粉尘净化器连通；含尘气体与含吸附剂的气流混合后由粉尘净化器进行净化。
  10. 根据权利要求9所述的粉尘净化系统，其中，所述粉尘净化系统中，吸附剂能够在所述供气装置的气流驱动下，扩散至所述粉尘净化器中，与所述粉尘净化器中的待净化含尘气体进行混合。
  11. 根据权利要求9所述的粉尘净化系统，其中，当所述容纳腔与所述含尘气体输送管之间设置气体混合单元时，所述气体混合单元为连通在所述容纳腔、所述含尘气体输送管以及所述粉尘净化器之间的三通结构。
  12. 根据权利要求9所述的粉尘净化系统，其中，所述粉尘净化器包括：滤芯，以及，对滤芯进行反吹清灰的反吹脉冲阀。
  13. 根据权利要求12所述的粉尘净化系统，其中，所述粉尘净化器包括：
    风机，为滤芯提供工作所需的负压；
    集尘筒，设置为收集从滤芯处脱落的粉尘颗粒。
  14. 根据权利要求12或13所述的粉尘净化系统，其中，所述粉尘净化系统还包括控制器以及与所述控制器电连接的传感组件；
    其中，所述传感器组件至少包括：
    第一气流传感器，设置为检测含吸附剂的气流流量，所述控制器基于所述第一气流传感器的电信号控制阀门组件，以调节容纳腔的输入气流；以及
    压差检测模块，设置为检测所述粉尘净化器工作压差，当粉尘净化器工作压差超过阈值时，所述控制器基于所述压差检测模块的电信号控制所述反吹脉冲阀对所述滤芯进行反吹清灰。
  15. 根据权利要求14所述的粉尘净化系统，其中，当粉尘净化器包含风机时，所述传感组件还包括设置为检测风机处气流流量的第二气流传感器，所述控制器基于所述第二气流传感器的电信号控制所述风机转速。
  16. 一种除尘方法，包括：
    启动粉尘净化系统和粉尘净化辅助装置；
    所述粉尘净化辅助装置将含吸附剂的气流与待净化的含尘气体混合，粉尘与吸附剂结合形成大粒径粉尘颗粒；
    所述粉尘净化器对大粒径粉尘颗粒进行吸附净化。
  17. 根据权利要求16所述的除尘方法，其中，所述粉尘净化系统和所述粉尘净化辅助装置启动后，所述控制器分别控制风机和阀门组件，调节含吸附剂的气流流量和风机处的气流流量。
  18. 根据权利要求16所述的除尘方法，其中，所述粉尘净化器对大粒径粉尘颗粒进行吸附净化过程中，当所述粉尘净化器工作压差超过设定阈值时，所述控制器控制所述反吹脉冲阀对滤芯进行反吹清灰。
  19. 根据权利要求16所述的除尘方法，还包括：
    通过传感器组件分别检测含吸附剂的气流流量以及粉尘净化器的风机对所述含尘气体产生的气流流量，以调节供气装置的运行参数，使吸附剂粉末或颗粒被气流吹散或弥散；以及
    通过所述压差检测模块，其设置为检测粉尘净化器工作压差，当所述粉尘净化器工作压差超过阈值时，所述控制器基于所述压差检测模块的电信号控制反吹脉冲阀对滤芯进行反吹清灰。
  20. 根据权利要求16所述的除尘方法，还包括：
    步骤一、启动所述粉尘净化器的风机，通过吸尘口将细微粉尘吸入除尘管道；
    步骤二、同时或者随后地，启动所述粉尘净化辅助装置，来自气体动力源的气流经过气管把容纳腔中吸附剂粉末或颗粒扩散，并使之随气流被吹进直通管道、三通结构和除尘管道，吸附自吸尘口进入除尘管道的细微粉尘，与之形成较大的粉尘颗粒；
    步骤三、当所述较大的粉尘颗粒流动到所述粉尘净化器的过滤部件，所述粉尘颗粒被截留至过滤部件一侧；
    步骤四、当被截留在一侧的粉尘颗粒达到一定量，所述过滤部件的阻力超过设定值时，所述粉尘净化器中的反吹脉冲阀启动，执行反吹清灰操作；
    步骤五、反吹清灰操作将被过滤的粉末颗粒收集至集尘筒中，一个除尘过程结束；以及
    依次循环执行所述步骤一至所述步骤五，收集粉尘。
PCT/CN2018/111229 2018-08-03 2018-10-22 一种粉尘净化辅助装置、粉尘净化系统及其方法 WO2020024450A1 (zh)

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