CN110694802B - Cleaning device and cleaning method for electrostatic oil smoke purification electric field - Google Patents
Cleaning device and cleaning method for electrostatic oil smoke purification electric field Download PDFInfo
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- CN110694802B CN110694802B CN201911038912.7A CN201911038912A CN110694802B CN 110694802 B CN110694802 B CN 110694802B CN 201911038912 A CN201911038912 A CN 201911038912A CN 110694802 B CN110694802 B CN 110694802B
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/743—Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
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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
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
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Abstract
The invention relates to a cleaning device and a cleaning method for an electrostatic oil fume purification electric field, belongs to the technical field of electrostatic oil fume purification, and solves the problems that the existing cleaning device cannot automatically clean the oil fume purification electric field, is low in purification efficiency and poor in purification effect, and wears polar plates in the cleaning process. The invention relates to a cleaning device for an electrostatic oil smoke purification electric field, which comprises a scraper, a transmission mechanism and a pipeline for injecting fluid onto a polar plate, wherein the transmission mechanism is used for controlling the scraper to move up and down, and the scraper is used for scraping dirt on the polar plate. The invention can rapidly remove the refractory substances, has high cleaning efficiency and good purification effect, reduces the damage to the polar plate in the cleaning process and prolongs the service life of the polar plate.
Description
Technical Field
The invention relates to the technical field of electrostatic oil smoke purification, in particular to a cleaning device and a cleaning method for an electrostatic oil smoke purification electric field.
Background
The cooking fume exhaust gas is a gaseous and suspended complex mixture released by a series of chemical reactions during heating of edible oil, seasonings, essence and the like, and comprises gas, suspended liquid drops, solid small particles and the like. Causing serious harm to the air, especially the indoor environment and the health of people. Among them, volatile hydrocarbons, fatty acids, aldehydes, ketones, aromatic compounds and heterocyclic compounds generated by thermal oxidation and cracking have various toxic chemical components with different degrees of toxicity, and can cause cancer and mutation after long-term exposure, and reduce human immunity and reproductive capacity. A large amount of high-concentration oil smoke damages eyes and respiratory mucosa, and even causes conjunctivitis, bronchitis and the like. The Chinese food culture mainly takes frying as main material, so that the oil fume pollution is aggravated while the excellent taste feast is brought to people, the oil gas concentration is high, and the treatment difficulty is high. According to statistics, the complaint event of the oil smoke emission pollution in the complaints of the related catering industry received by government departments accounts for more than 40 percent. In the air detection of the environmental protection department, PM2.5 is an important measure of air quality and is also a main basis for people to evaluate the air quality of cities, and besides common pollution sources such as industries and the like, catering oil fume is also taken into PM2.5 pollutants, so that the PM2.5 pollutants are important attention objects. Therefore, the state has a series of relevant policies and standards to detect and control pollution, and the catering units in operation must be additionally provided with oil fume purification facilities to ensure that the oil fume discharged into the air meets the national standard
At present, most of oil fume purification equipment adopts an electrostatic adsorption method to treat oil fume particles, wherein 220V voltage is transformed to ten thousand volts through a transformer, then the voltage is converted into direct current through a rectifier, a strong electric field is formed between two polar plates, particles in smoke are charged, and the charged oil fume particles are adsorbed on the polar plates under the action of electrode attraction between the electrodes and are gathered and converged, so that purification and collection are realized. Usually, a plurality of metal polar plates which are parallel to each other and have staggered positive and negative electrodes are made into a purification electric field module. Generally, the equipment can capture even fine particles with the particle size of less than 0.1 micron, and the method is the oil fume purification method which has the highest purification efficiency and is most widely applied at present. The ionization adsorption method has strong capability of removing small particle aerosol, small equipment volume, high purification efficiency, low energy consumption and no secondary pollution.
The electrostatic adsorption method equipment can form a layer of oil stain on the surface of a dust collecting polar plate in an electric field after long-term use, so that the electric field between the polar plates is uneven, breakdown discharge can be seriously caused, the purification efficiency is greatly reduced, and the formed oil stain has high viscosity and is not easy to clean. The existing oil fume purification electric field mostly needs manual cleaning, and usually, the electric field module needs to be taken out periodically, placed in alkali liquor for treatment, then washed by clear water and cleaned of accumulated water, and then the oil fume purification electric field can be installed back to equipment for continuous use. However, this method is difficult to get rid of the caking dirt, and simple mechanical scraper blade mode carries the particulate matter in the greasy dirt easily to cause wearing and tearing to the electric field polar plate in the scraper blade motion process, reduce the life of polar plate, and traditional cleaning cycle is mostly manual judgement and trigger, the manpower maintenance cost of needs is higher, can lead to the longer time interrupt of purifying process, and the oil smoke volume of different kitchen ranges is different, it is inconvenient to judge the washing opportunity, wash too frequently and increase the cost easily, cleaning cycle is too long again will influence purification efficiency.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a cleaning device and a cleaning method for an electrostatic oil smoke purifying electric field, so as to solve the problems that the existing cleaning device cannot automatically clean the oil smoke purifying electric field, the cleaning efficiency is low, the cleaning effect is poor, and the polar plates are worn during the cleaning process.
The purpose of the invention is mainly realized by the following technical scheme:
on the one hand, the cleaning device for the electrostatic oil fume purification electric field comprises a scraper, a transmission mechanism and a pipeline for injecting fluid onto a polar plate, wherein the transmission mechanism is used for controlling the scraper to move up and down, and the scraper is used for scraping off dirt on the polar plate.
Further, the transmission mechanism comprises a scraper bracket, a transmission rod and a traction part; the scraper is connected with a scraper bracket which is arranged on the transmission rod;
the traction part is used for driving the scraper to move up and down along the transmission rod.
Furthermore, the traction part is of an I-shaped structure and comprises an upper beam, a lower beam and an upright post with a hollow structure, the upper beam is connected with the lower beam through the upright post, and the traction part is sleeved on the transmission rod through the upright post; the scraper blade passes through the rotation axis to be fixed on the scraper blade support, and the scraper blade includes scraper blade long end and scraper blade short end, and the rotation axis sets up in the junction of scraper blade long end and scraper blade short end, and the short end card of scraper blade is established in the space between upper beam and underbeam, and the scraper blade can rotate around the rotation axis under the injecing of upper beam, underbeam.
Furthermore, the pipeline is arranged on the lower surface of the scraper, and the fluid sprayed out of the pipeline can flow along the lower surface of the scraper and is sprayed at the intersection line of the scraper and the polar plate.
Furthermore, the pipeline is arranged inside the scraper, the end part of the scraper, which is close to the polar plate, is provided with a jet orifice, the jet orifice is communicated with the pipeline, and fluid in the pipeline is jetted onto the polar plate through the jet orifice.
Further, the jet orifice is of a tapered structure and is arranged on the lower surface of the scraper.
Furthermore, the pipeline is arranged on the scraper support, and a liquid outlet of the pipeline is positioned at the lower end of the scraper support and can spray fluid to the lower surface of the scraper, so that the fluid flows onto the pole plate along the lower surface of the scraper.
On the other hand, the cleaning method for the electrostatic oil fume purification electric field, which is utilized by the cleaning device for the electrostatic oil fume purification electric field, comprises the following steps:
the method comprises the following steps: determining whether the electrostatic oil fume purification electric field needs to be cleaned, and cutting off a power supply of the electric field and starting a cleaning device when the electrostatic oil fume purification electric field needs to be cleaned;
step two: when the cleaning device works, the traction part moves downwards from the initial position, the long end of the scraper is upwarped by pressing the short end of the scraper downwards, the scraper support is driven to move at the same time, the scraper is in contact with the polar plate, and the pipeline ejects fluid to the polar plate to scrape off dirt on the polar plate;
step three: and after the scraper moves to the lowest end of the polar plate, the traction part moves upwards to drive the scraper to recover to the initial position, and the scraper moves opposite to the first step in the moving process to enable the long end of the scraper to be separated from the polar plate.
Further, in the second step, before the scraper moves downwards, high-temperature and high-pressure fluid is sprayed, the high-temperature and high-pressure fluid softens the dirt block firstly, and the scraper moves downwards to scrape off the oil dirt.
Further, in the second step, the fluid sprayed onto the pole plate by the pipeline is water, water vapor or air.
Compared with the prior art, the invention has at least one of the following beneficial effects:
a) the cleaning device for the electrostatic oil smoke purification electric field provided by the invention adopts the cleaning mode of the electric field polar plate of the oil smoke purifier combining mechanical scraping and high-temperature and high-pressure fluid spraying melting by arranging the scraping plate and the pipeline for spraying high-temperature and high-pressure fluid, when the electric field pole plate needs to be cleaned, the scraper scrapes off greasy dirt on the surface of the pole plate, and the edge of the scraper is matched with high-pressure injection of hot water or high-temperature air to melt or dissolve viscous greasy dirt, so that the purification efficiency of the scraper is improved, solid particles mixed in the greasy dirt are prevented from wearing the electric field pole plate in the scraping process of the scraper, the service life of the pole plate is obviously prolonged, experimental data show that compared with the traditional manual cleaning method, the method saves more than 75 percent of time, under the same cleaning times, the abrasion to the polar plate is reduced by more than 60 percent compared with manual scraping, the cleaning effect is stable, and the cleaning rate can reach more than 99 percent.
b) According to the cleaning device for the electrostatic oil smoke purification electric field, the traction part is of an I-shaped structure, the scraper is fixed on the scraper support through the rotating shaft, the short end of the scraper is clamped in a space between the upper beam and the lower beam of the I-shaped traction part, the scraper can be attached to an electric field polar plate when moving downwards during cleaning, the scraper can be automatically retracted away from the polar plate when being reset after cleaning, and excessive friction on the polar plate or dirt brought back to the polar plate again is avoided.
c) According to the cleaning device for the electrostatic oil fume purification electric field, the control assembly, the oil fume concentration sensor, the gas pressure sensor and the ammeter are arranged, whether an electric field polar plate needs to be cleaned or not is automatically judged, an electric field power supply is automatically cut off, a fluid and mechanical coupling automatic cleaning process is carried out, the operation of the electric field is automatically recovered after the cleaning process is finished, the automatic cleaning process is realized, manual monitoring and maintenance are not needed, long-time unmanned maintenance can be realized, labor and labor are saved, and the maintenance cost is effectively reduced.
d) According to the cleaning method for the electrostatic oil fume purification electric field, which is provided by the invention, the oil fume purifier electric field polar plate cleaning mode combining mechanical scraping and high-temperature and high-pressure fluid spraying melting is adopted, so that viscous oil dirt can be quickly melted or dissolved, a scraper can conveniently remove the oil dirt, the purification efficiency is obviously improved, and the time is saved by more than 75% compared with the traditional manual cleaning method. And the cleaning process is automated, the whole cleaning process does not need manual monitoring and maintenance, and the maintenance cost is obviously reduced.
e) The cleaning method for the electrostatic oil fume purification electric field provided by the invention adopts high-temperature and high-pressure water, steam or air for washing, can promote the dissolution and melting of oil stains, can avoid secondary pollution caused by using alkali liquor, and is economic and environment-friendly.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic structural diagram of a cleaning device for an electrostatic lampblack purification electric field according to an embodiment of the invention;
FIG. 2 is a sectional view showing a long end of a flight provided with an ejection port according to an embodiment of the present invention.
Reference numerals:
1-an electric field electrode plate; 2-a transmission rod; 3-a scraper support; 4-a scraper; 5-a traction member; 6-a rotating shaft; 7-an ejection port; 8-short end of scraper; 9-scraper Long end.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
The invention discloses a cleaning device for an electrostatic oil smoke purification electric field, which comprises a scraper 4, a transmission mechanism and a pipeline for injecting fluid onto a polar plate 1, wherein the transmission mechanism is used for controlling the scraper 4 to move up and down, and the scraper 4 is used for scraping dirt on the polar plate 1, as shown in fig. 1.
In this embodiment, the pipeline is disposed on the scraper 4, or the pipeline is disposed on the scraper support 3, and the arrangement of the pipeline includes, but is not limited to, the following three types:
the first pipeline setting mode is that the pipeline is arranged on the surface of the scraper plate 4, the liquid outlet of the pipeline is arranged at one end, close to the pole plate 1, of the scraper plate 4, the other end of the pipeline is connected with the liquid injection tank or the air compressor through a hose or other movable pipes, fluid is supplied to the pipeline on the surface of the scraper plate 4 under the action of the pressure pump, and the fluid is injected to the pole plate 1 through the liquid outlet. In order to ensure that the ejected fluid covers the whole polar plate 1, the first pipelines are arranged side by side, or the liquid outlets of the pipelines are provided with spray heads, so that the coverage area of the fluid sprayed by the spray heads is large, the whole polar plate 1 is ensured to be covered, and the purification effect is ensured. Preferably, the first pipeline is arranged on the lower surface of the scraper 4, and the fluid sprayed out of the pipeline flows along the lower surface of the scraper 4, so that the fluid is accurately sprayed at the intersection of the scraper 4 and the electric field polar plate 1, and the purification effect is improved.
The second pipeline setting mode is that the pipeline is arranged inside the scraper 4, the scraper 4 is of a hollow structure, the end part of the scraper 4 close to the pole plate 1 is provided with a jet orifice 7, the jet orifice 7 is positioned on the lower surface of the scraper 4, the jet orifice 7 is communicated with one end of the pipeline arranged in the scraper 4, the other end of the pipeline is connected with a jet liquid box or an air compressor through a hose or other movable pipes, and fluid is supplied to the pipeline inside the scraper 4 under the action of a pressure pump and is jetted onto the pole plate 1 through the jet orifice 7. In order to ensure that the sprayed fluid covers the whole polar plate 1, the spraying ports 7 of the second pipeline are multiple, the spraying ports 7 are arranged side by side along the width direction of the scraper 4, or the spraying ports 7 of the second pipeline are long-strip-shaped openings along the width direction of the scraper 4, the length of each long-strip-shaped opening is larger than or equal to the width of the polar plate 1, the spraying ports 7 arranged side by side or the spraying ports 7 of the long-strip-shaped structures can ensure that the sprayed fluid covers the whole polar plate 1, and the purifying effect is ensured. In the second way, the jet orifice 7 is arranged on the lower surface of the scraper 4, the jet orifice 7 is in a tapered structure, and the longitudinal section of the jet orifice 7 perpendicular to the polar plate 1 is in a tapered shape, as shown in fig. 2, the jet orifice of the tapered structure can improve the fluid jet speed, and the direction of the jet orifice 7 is parallel or approximately parallel to the lower surface of the scraper 4, so that the fluid is ensured to flow along the lower surface of the scraper 4, the fluid is accurately jetted on the intersection line of the scraper 4 and the electric field polar plate 1, and the purification effect is improved.
The third pipeline setting mode is that the pipeline is arranged on the scraper support 3, the liquid outlet of the pipeline is positioned at the lower end of the scraper support 3, and fluid can be ejected to the lower surface of the scraper 4, so that the fluid flows to the polar plate 1 along the lower surface of the scraper 4 until the fluid flows to the polar plate 1 to wash out oil stains. In order to make the fluid evenly cover polar plate 1, the lower surface of scraper blade 4 sets up many guiding gutters side by side, and guiding gutter evenly distributed can guide the even flow of fluid to polar plate 1 on the scraper blade 4 lower surface, eliminate and wash the blind area to promote and purify the cleaning performance.
Because every group polar plate includes two polar plates 1 that set up relatively, in order to avoid electric field working process to have the shelter from between the polar plate 1 to influence and discharge, drive mechanism sets up outside the space of the relative projection of polar plate, and drive mechanism installation space is called as in this space, and scraper blade 4 is when out of work, arranges polar plate 1 top in, and scraper blade 4 is located the top in the relative projection space of polar plate to guarantee that there is not the shelter from between every two polar plates 1 of group.
In this embodiment, the transmission mechanism includes a scraper support 3, a transmission rod 2 and a traction part 5, a scraper 4 is connected with the scraper support 3, the scraper support 3 is arranged on the transmission rod 2, the scraper support 3 can move up and down along the transmission rod 2 under the pulling of the traction part 5 to drive the scraper 1 to move up and down, the scraper support 3 is sleeved on the transmission rod 2 through a damping component, and the scraper support 3 has a certain damping when sliding on the transmission rod 2 and can stay and keep at a certain position on the transmission rod 2. Wherein, the traction part 5 is an active mechanism and is connected with the driving motor through a transmission connecting rod, a belt or a chain. The scraper support 3 is a driven mechanism, and when the traction part 5 drives the scraper short end 8 to move up and down, the scraper support 3 is pulled to move in the vertical direction along the transmission rod 2. Illustratively, the scraper bracket 3 is sleeved on the transmission rod 2, and the traction part 5 can drive the scraper 4 to move up and down along the transmission rod 2; the scraper support 3, the transmission rod 2 and the traction part 5 are arranged at two ends outside an area between electric field polar plates, namely, are arranged in a transmission mechanism mounting space, so that discharging is not influenced in the working process of an electric field; the scraper 4 is connected with the scraper support 3, and the scraper support 3 can move up and down along the transmission rod 2 under the driving of the traction part 5 and drive the scraper 4 to move up and down to scrape off dirt on the polar plate 1. The traction part 5 is of an I-shaped structure and comprises an upper beam, a lower beam and an upright column, the upper beam is connected with the lower beam through the upright column with a hollow structure, the upright column of the traction part 5 is sleeved on the transmission rod 2, the scraper support 3 is of a groove structure, namely the section in the longitudinal direction is concave, the width of a groove plate of the groove structure is smaller than that of a groove opening, the scraper 4 is fixed on the scraper support 3 through a rotating shaft 6, the rotating shaft 6 is arranged at the end parts of two side walls of the groove structure, and the traction part 5 can stretch into the groove structure and can move back and forth relative to the scraper support 3 within a certain range; the scraper 4 comprises a scraper long end 9 and a scraper short end 8, the rotating shaft 6 is arranged at the joint of the scraper long end 9 and the scraper short end 8, the scraper short end 8 of the scraper 4 is clamped in a space between an upper beam and a lower beam of the I-shaped traction part 5, and the scraper 4 can rotate around the rotating shaft 6 within a certain range under the limitation of the upper beam and the lower beam. When the polar plate 1 is cleaned, the traction part moves downwards slowly, the short end 8 of the scraper is pressed to descend, so that the scraper 4 rotates around the rotating shaft 6, the long end 9 of the scraper upwarps and is close to the polar plate 1, the edge of the long end 9 of the scraper is tightly attached to the polar plate 1, and all dirt on the polar plate is scraped in the downward movement process; after cleaning is finished, the traction part 5 drives the scraper 4 to move upwards, so that the long end 8 of the scraper is far away from the polar plate 1 when the scraper returns, oil stains on the lower side of the scraper 4 are not brought back to the polar plate 1 in the upward moving process of the scraper, the polar plate can be effectively prevented from being scratched when the scraper 4 returns, and the service life of the polar plate is prolonged.
In this embodiment, in order to ensure that the scraper 4 can scrape off all the dirt on the polar plate 1, the width of the contact part of the scraper 4 and the polar plate 1 is greater than or equal to the width of the polar plate 1, that is, the width of the long end 9 of the scraper is greater than or equal to the width of the polar plate 1, and when the scraper 4 contacts the polar plate 1 and moves up and down, the scraper 4 is ensured to scrape off all the dirt on the polar plate 1.
In this embodiment, through adjusting the length and the proportion of the long end 9 of the scraper 4 scraper and the short end 8 of the scraper, the distance between the transmission rod 2 and the polar plate 1, and the distance between the upper beam and the lower beam of the scraper support 3, the cleaning device is enabled to be in the working process, the long end 9 of the scraper 4 is in contact with the polar plate 1, the lower surface of the scraper 4 and the polar plate 1 below the contact point form an obtuse angle, the structure can prevent oil stains from accumulating near the contact point in the oil stain scraping process, and meanwhile, the fluid injection effect is also improved.
The electrostatic oil fume purifying electric field is formed by arranging a plurality of groups of polar plates in parallel, two adjacent groups of polar plates are arranged at intervals, and a transmission mechanism installation space is arranged between the two adjacent groups of polar plates. To the cleanness of multiunit polar plate, can all set up a belt cleaning device for every group polar plate, belt cleaning device includes two scraper blades 4, and two scraper blades 4 symmetry set up in the both sides in space between the upper and lower beams of scraper blade support 3, and the cleaning device of each group polar plate can the autonomous working, and the cleaning process of multiunit polar plate can independently go on, also can go on simultaneously. For cleaning a plurality of groups of polar plates, the cleaning devices among the polar plates of each group can be connected into a whole, only the installation spaces of the external transmission mechanisms of the two groups of polar plates at the outermost edges are respectively provided with a transmission rod, the distance between the transmission rods 2 at the two ends is larger than the total width of the plurality of groups of polar plates, correspondingly, the traction part 5 and the scraper blade support 3 are respectively of an integral structure and are respectively sleeved on the two transmission rods 2, namely, the transmission rods 2 are not arranged in the installation spaces of the transmission rods of each group of polar plates, but the scraper blade supports 3 are arranged in series or the scraper blade supports 3 in series are arranged into a whole, correspondingly, the traction parts 5 are arranged in series or the traction parts 5 are arranged into a whole, and the transmission rods are only arranged in the installation spaces of the transmission rods at the two. Exemplarily, the cleaning device of this structure, including two transfer lines 2, scraper support 3 and I shape traction part 5 are integrative structure, or, establish ties into an organic whole structure by a plurality of scraper support 3 and a plurality of I shape traction part 5, scraper support 3 and the I shape traction part 5 of integrative structure are provided with two mounting holes respectively, scraper support 3 and I shape traction part 5 of integrative structure establish on two transfer lines 2 through the mounting hole cover, the interval sets up multiunit scraper blade 4 on the scraper support 3, every scraper blade 4 of group corresponds a set of polar plate respectively, can once clean multiunit polar plate, promote purification efficiency.
In order not to influence the discharge of the polar plate 1, the components among the polar plate 1, such as the scraper 4, the scraper bracket 3, the traction component 5, the transmission rod 2 and the like, are all made of insulating materials, such as carbon fibers, glass fibers, high-temperature-resistant plastics and the like.
In the embodiment, the cleaning device is also provided with a control component, an oil smoke concentration sensor, a gas pressure sensor and an ammeter, wherein, the oil smoke concentration sensor is arranged at the airflow inlet and outlet of the electric field or only arranged at the airflow outlet of the electric field, the gas pressure sensor is arranged at the air inlet of the electric field, the ammeter is arranged at the power supply of the electric field of the equipment, the control component can judge whether the electric field polar plate needs to be cleaned according to one monitoring result or a combination of a plurality of monitoring results of the oil smoke concentration monitored by the oil smoke concentration sensor, the air inlet pressure monitored by the gas pressure sensor at the air inlet of the electric field and the change of the electric field power supply current monitored by the ammeter, when the cleaning is needed, the power supply of the electric field can be cut off, the cleaning device is started, the fluid is sprayed out, the scraper 4 is coupled with the automatic cleaning process, and the operation of the electric field is automatically recovered after the cleaning is finished. Illustratively, when the oil smoke concentration measured by the oil smoke concentration sensor is higher than 10% -30% of a set value, or the oil smoke purification efficiency calculated by two sensors at an airflow inlet and an airflow outlet of an electric field is reduced to a value which does not meet the emission standard, automatically performing a cleaning program; or when the air inlet pressure monitored by the gas pressure sensor is higher than 10-30% of the set value, automatically performing a cleaning program; or, when the current monitored by the ammeter is higher than the set current threshold, automatically performing the cleaning program. The setting of the current threshold is determined by the current change degree when the oil smoke concentration and the pressure change are caused when the product is designed and installed.
It should be noted that, according to actual needs, one of the monitoring devices in the oil smoke concentration sensor, the gas pressure sensor and the ammeter is selected and equipped, and whether a cleaning procedure is needed or not is judged according to a single monitoring result; or, two or more kinds of detection equipment are equipped, and a plurality of kinds of monitoring results are combined for use. Therefore, the cleaning device of the embodiment can be provided with one or more monitoring devices according to the use requirements of users, and the cleaning is started when various monitoring result parameters simultaneously meet the conditions for cleaning or any monitoring result meets the conditions.
The embodiment also provides a method for cleaning the electrostatic lampblack purification electric field by using the cleaning device for the electrostatic lampblack purification electric field, which comprises the following steps:
the method comprises the following steps: and determining whether the electrostatic oil fume purification electric field needs to be cleaned, and cutting off the power supply of the electric field and starting the cleaning device when the electrostatic oil fume purification electric field needs to be cleaned. Wherein, whether the cleaning is needed or not can be determined manually or automatically by the cleaning device. The automatic judgment mode is realized by a control assembly, an oil smoke concentration sensor, a gas pressure sensor and an ammeter which are arranged on the cleaning device, and specifically, when the oil smoke concentration measured by the oil smoke concentration sensor is higher than 10% -30% of a set value, or the oil smoke purification efficiency calculated by two sensors at an airflow inlet and an airflow outlet of an electric field is reduced to a value which does not meet the emission standard; or when the inlet air pressure monitored by the air pressure sensor is higher than 10-30% of the set value; or, when the ammeter monitors that the current at the power supply of the electric field of the equipment is higher than the set current threshold, the cleaning program is automatically carried out. The embodiment adopts the detection of various parameters such as oil smoke concentration, current change, gas pressure and the like, can automatically judge the cleaning time, and realizes the balance between economy and efficiency.
Step two: the electric field is powered off, the cleaning device works, the traction part 5 moves downwards from an initial position, the long end 9 of the scraper is upwarped by pressing the short end 8 of the scraper downwards, the scraper support 3 is driven to move simultaneously, the scraper 4 is in contact with the polar plate 1, the pipeline sprays fluid onto the polar plate 1, and the scraper 4 scrapes off dirt on the polar plate 1 in the downward movement process. When the cleaning device does not work, the scraper and the bracket are pulled to be above the polar plate by the traction part. When the cleaning work is needed, the control assembly firstly cuts off the power of the electric field, then controls the traction part to move downwards slowly, the short end 8 of the scraper is pressed to descend, the scraper 4 rotates around the rotating shaft 6, the long end 9 of the scraper upwarps and is close to the polar plate 1, the edge of the long end 9 of the scraper is tightly attached to the polar plate 1, and all the dirt on the polar plate is scraped in the downward movement process. In the process that the scraper 4 slowly moves downwards, high-temperature and high-pressure air (50-200 ℃), water vapor (more than 100-200 ℃) or water (50-99 ℃) are ejected from the ejection opening 7 on the scraper 4, and the oil stains on the polar plate 1 are melted and softened by the high-temperature and high-pressure fluid, so that the purification effect can be obviously improved. When the scraper 4 moves to the lowest end of the polar plate 1, all dirt on the polar plate 1 can be removed, the dirt is pushed into an oil collecting tray at the lowest part of an electric field by the scraper 4 and is uniformly treated, and the oil collecting tray is provided with the electrostatic adsorption type oil smoke purification equipment.
Step three: after the scraper 4 moves to the lowest end of the polar plate 1, the traction part 5 converts the movement direction and starts to move upwards to drive the scraper 4 to recover to the initial position, and the scraper 4 moves opposite to the first step in the moving process to enable the long end 9 of the scraper to be separated from the polar plate 1. When the traction component 5 starts to move upwards, the short end 8 of the scraper is acted by an upward force, the scraper 4 rotates reversely, the long end 9 of the scraper moves downwards to be far away from the pole plate 1, and oil dirt on the lower side of the scraper cannot be brought back to the pole plate in the upward movement process of the scraper.
In the second step, in order to accelerate the cleaning speed of the stubborn dirt blocks, before the scraper 4 moves downwards, high-temperature and high-pressure fluid is firstly sprayed, the dirt blocks are softened by the high-temperature and high-pressure fluid, and the scraper 4 moves downwards again to scrape off the oil stains, so that the cleaning efficiency of the scraper can be obviously enhanced.
In order to ensure that the electric field can be recovered as soon as possible, if the liquid is sprayed in the cleaning process in the second step, after the cleaning in the third step is finished, the scraper 4 sprays high-temperature and high-pressure air to the polar plate 1 in the upward moving process, so that the evaporation speed of the liquid on the polar plate can be accelerated, and the recovery work of the electric field is accelerated.
In order to improve the purification effect, the second step further comprises a pre-melting process of the oil stains, namely, before the scraper 4 moves downwards, high-temperature and high-pressure fluid is sprayed for a plurality of times at intervals to melt the oil stains, and the oil stains are melted before the scraper 4 is mechanically scraped, so that the purification effect can be obviously improved. Illustratively, before the scraper 4 moves downwards, the first injection is carried out, the injection time is 60 seconds, and the injection pressure is 0.03-0.05 MPa; performing secondary spraying 10-20 seconds after the first spraying, wherein the spraying time is 30 seconds, and the spraying pressure is 0.015-0.03 MPa; 5 ~ 10 seconds after accomplishing the second injection, carry out the third injection, the injection time is 10 ~ 15 seconds, injection pressure is 0.01 ~ 0.015MPa, 5 seconds after accomplishing the third injection, traction part 5 begins work, traction part is when moving down, the pipeline is to polar plate 1 upper jet fluid, because scraper blade 4 and polar plate 1 contact, scraper blade 4 scrapes off the dirt on polar plate 1 in the in-process of downstream, it is better to utilize mechanical scraping and the clean effect that high temperature high pressure fluid jet melts the combination.
In order to ensure that the oil fume purification process is not interrupted, the electric field polar plates 1 and the cleaning devices are arranged into two or more combinations capable of working independently, illustratively, the oil fume purifier can be provided with two groups of electric field polar plates capable of working independently in parallel, and each group of electric fields is provided with one set of cleaning devices. When the polar plates need to be cleaned, the oil fume purification device controls the inlet airflow to only pass through one group of electric fields, and the other group of electric fields normally clean the polar plates; after the cleaning of the other group of electric fields is finished, the normal work of power supply can be recovered, and then the working states of the two groups of electric fields are exchanged, so that the alternate cleaning and work of the two groups of electric fields are realized. In the same group of electric field polar plates, the polar plate power supply and cleaning mechanisms of the left part and the right part can be separately and independently controlled, the mode similar to the alternating working mode of the two groups of electric field polar plates is realized, only half of the electric field is cleaned each time, and the other half of the electric field works as usual.
Compared with the prior art, the belt cleaning device to electrostatic oil smoke purification electric field that this embodiment provided, utilize machinery to strike off and melt the oil smoke clarifier electric field polar plate cleaning means that combines together with high temperature high pressure fluid injection, when the electric field polar plate needs to be washd, adopt the scraper blade to scrape the greasy dirt on polar plate surface automatically, high-pressure injection at scraper blade edge cooperation hot water or high temperature air simultaneously, make viscous greasy dirt melt or dissolve, improve the purification efficiency of scraper blade, the solid-state particulate matter that mix with in the avoiding greasy dirt causes wearing and tearing to the electric field polar plate at scraper blade friction in-process. The scraper can automatically cling to the electric field pole plate in the cleaning process, and can automatically retract away from the pole plate after cleaning is finished and return to the original position, so that excessive friction on the pole plate or dirt brought back to the pole plate is avoided. The belt cleaning device of this embodiment through setting up control assembly, oil smoke concentration sensor, gas pressure sensor and ampere meter, judges automatically whether electric field polar plate needs wash, and the automatic electric field power that cuts off carries out fluid and mechanical coupling self-cleaning process, and the operation of automatic recovery electric field after the end realizes automatic cleaning process, need not the manual control maintenance, can realize long-time unmanned maintenance, uses manpower sparingly, effectively reduces the maintenance cost. Compared with the traditional scheme of adopting alkali liquor for cleaning, the cleaning method of the embodiment adopts high-temperature and high-pressure water, water vapor or air for washing, can promote the dissolution and melting of oil stains, avoids secondary pollution caused by the use of alkali liquor, saves more than 75% of time compared with the traditional manual cleaning method, and obviously improves the purification efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A cleaning device for an electrostatic oil smoke purification electric field is characterized by comprising a scraper (4), a transmission mechanism and a pipeline for injecting fluid onto a polar plate (1), wherein the transmission mechanism is used for controlling the scraper (4) to move up and down, and the scraper (4) is used for scraping off dirt on the polar plate (1);
the transmission mechanism comprises a scraper support (3), a transmission rod (2) and a traction part (5);
the scraper (4) is connected with the scraper support (3), and the scraper support (3) is arranged on the transmission rod (2);
the traction part (5) is used for driving the scraper (4) to move up and down along the transmission rod (2);
the traction part (5) is of an I-shaped structure and comprises an upper beam, a lower beam and an upright post with a hollow structure, the upper beam is connected with the lower beam through the upright post, and the traction part (5) is sleeved on the transmission rod (2) through the upright post;
scraper blade (4) are fixed on scraper blade support (3) through rotation axis (6), scraper blade (4) are including the long end of scraper blade (9) and scraper blade short-end (8), rotation axis (6) set up in the junction of the long end of scraper blade (9) and scraper blade short-end (8), scraper blade short-end (8) card is established in the space between upper beam and the underbeam, scraper blade (4) can rotate around rotation axis (6) under the restriction of upper beam, underbeam.
2. The cleaning device for electrostatic lampblack purification electric field according to claim 1, characterized in that the pipeline is arranged on the lower surface of the scraper (4), and the fluid sprayed from the pipeline can flow along the lower surface of the scraper (4) and is sprayed at the intersection line of the scraper (4) and the polar plate (1).
3. The cleaning device for the electrostatic oil smoke purifying electric field according to claim 1, wherein the pipeline is arranged inside the scraper (4), the end of the scraper (4) close to the pole plate (1) is provided with a jet orifice (7), the jet orifice (7) is communicated with the pipeline, and the fluid in the pipeline is jetted onto the pole plate (1) through the jet orifice (7).
4. The cleaning device for electrostatic oil smoke purifying electric field according to claim 3, wherein the injection port (7) is a tapered structure and is provided on the lower surface of the scraper (4).
5. The cleaning device for electrostatic oil fume purifying electric field according to claim 1, characterized in that the pipeline is disposed on the scraper support (3), and the liquid outlet of the pipeline is located at the lower end of the scraper support (3) and can spray fluid to the lower surface of the scraper (4) to make the fluid flow onto the pole plate (1) along the lower surface of the scraper (4).
6. A cleaning method for an electrostatic oil smoke purifying electric field, which is characterized in that the cleaning device for the electrostatic oil smoke purifying electric field of claims 1 to 5 is used, and the method comprises the following steps:
the method comprises the following steps: determining whether the electrostatic oil fume purification electric field needs to be cleaned, and cutting off a power supply of the electric field and starting a cleaning device when the electrostatic oil fume purification electric field needs to be cleaned;
step two: when the cleaning device works, the traction part (5) moves downwards from the initial position, the long end (9) of the scraper is upwarped by pressing the short end (8) of the scraper downwards, the scraper support (3) is driven to move at the same time, the scraper (4) is contacted with the polar plate (1), the pipeline sprays fluid onto the polar plate (1), and dirt on the polar plate (1) is scraped;
step three: and after the scraper (4) moves to the lowest end of the polar plate (1), the traction part (5) moves upwards to drive the scraper (4) to recover to the initial position, and the scraper (4) moves opposite to the first step in the moving process to enable the long end (9) of the scraper to be separated from the polar plate (1).
7. The cleaning method for the electrostatic oil smoke purifying electric field according to claim 6, wherein in the second step, before the scraper (4) moves downwards, the high-temperature and high-pressure fluid is sprayed, the high-temperature and high-pressure fluid softens the dirt, and the scraper (4) moves downwards to scrape off the dirt.
8. The cleaning method for the electrostatic lampblack purification electric field according to claim 6 or 7, wherein in the second step, the fluid sprayed onto the polar plate (1) by the pipeline is water, water vapor or air.
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| CN111111927B (en) * | 2020-02-06 | 2021-07-09 | 北京鑫皓超燃厨具设备有限公司 | Electrostatic oil fume purifier |
| CN112691749A (en) * | 2020-12-08 | 2021-04-23 | 胡田 | Waste recovery device for brake processing |
| CN113877731A (en) * | 2021-09-22 | 2022-01-04 | 安徽金轩科技有限公司 | Method for preventing low-temperature section from blocking and scaling of air preheater of circulating fluidized bed boiler |
| CN114534922B (en) * | 2022-03-01 | 2023-04-14 | 浙江连成环保科技有限公司 | Auxiliary flue gas purification system of wet-type electric dust remover |
| CN115069417B (en) * | 2022-07-22 | 2022-11-04 | 山东盛宝传热科技有限公司 | Wet electrostatic dust collection equipment |
| CN117443580B (en) * | 2023-12-13 | 2024-05-10 | 南宫市罗康毛毡有限公司 | Electrostatic adsorption dust collector capable of recycling raw materials |
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| CN201264028Y (en) * | 2008-08-07 | 2009-07-01 | 丁克芳 | Bearing cleaning machine |
| JP5146334B2 (en) * | 2009-01-22 | 2013-02-20 | 株式会社日立プラントテクノロジー | Electric dust collector and scraper |
| CN103736332B (en) * | 2014-01-13 | 2015-09-09 | 河南龙成煤高效技术应用有限公司 | A kind of advanced tubular filter-element dust collector is with scraping apparatus for ash |
| CN205372678U (en) * | 2015-11-25 | 2016-07-06 | 武汉科瑞特环保工程有限公司 | Photodissociation electrostatic fume purifier is discharged in low latitude |
| CN205199736U (en) * | 2015-11-27 | 2016-05-04 | 重庆焱津环保科技有限公司 | Take high voltage static oil smoke processing apparatus of self - cleaning function |
| KR101706566B1 (en) * | 2015-12-01 | 2017-02-15 | 주식회사 포스코 | Apparatus for removing oxidized scale on strip |
| CN108620238B (en) * | 2017-03-24 | 2020-06-09 | 北京淘氪科技有限公司 | Array type nozzle plane cleaning device and self-cleaning maintenance-free electrostatic purification system |
| CN108940594B (en) * | 2017-05-18 | 2023-09-22 | 江苏瑞洁环境工程科技有限责任公司 | Wet-type electric dust remover |
| CN208229457U (en) * | 2018-04-10 | 2018-12-14 | 南安市傅泉机械科技有限公司 | A kind of mud scraper of sewage disposal device |
| CN208357041U (en) * | 2018-06-08 | 2019-01-11 | 陕西岵裕智能科技有限公司 | A kind of industrial chimney ionization type air cleaning system |
| CN208303010U (en) * | 2018-09-04 | 2019-01-01 | 陈刚波 | A kind of machine cut processing cleaning waste liquid iron filings separator |
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