CN106765416B

CN106765416B - Fume purifier

Info

Publication number: CN106765416B
Application number: CN201710060749.9A
Authority: CN
Inventors: 段巍峰
Original assignee: Guangzhou Runtian Environmental Protection Technology Co ltd
Current assignee: Guangzhou Runtian Environmental Protection Technology Co ltd
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2023-05-16
Anticipated expiration: 2037-01-25
Also published as: CN106765416A

Abstract

The invention discloses a lampblack purifier, which comprises a shell with an inlet and an outlet at the head end and the tail end, wherein the inlet and the outlet of the shell are both provided with filter screens, an oil collecting groove for collecting waste oil is arranged below the shell, a plurality of layers of electrode tubes which are coaxially nested and have different diameters are arranged between the two filter screens, electrodes with different polarities are loaded between two adjacent electrode tubes to enable the electrode tubes to absorb lampblack, and drainage grooves which are convenient for the waste oil to flow out of the electrode tubes are arranged on each electrode tube. The oil fume purifier has the advantages that the circumferential surface is used as an adsorption surface, the dust collection area is larger under the same volume, particularly, the drainage grooves are formed in the pipe wall of each electrode pipe, when oil stains gather more, the oil stains can flow to the oil collection groove through the drainage grooves by means of gravity and cannot be accumulated in the purifier in a large quantity, and therefore the cleaning period is prolonged. The invention is used in the field of range hoods.

Description

Fume purifier

Technical Field

The invention relates to the field of range hoods, in particular to an electrostatic type oil fume purifier.

Background

The technical sources of various catering and industrial oil smoke purifiers and indoor purifiers come from electrostatic precipitators, and are mainly used in power plants, steel plants and building material industries. The equipment is moving toward larger and wider devices. The polar distance of the general electric dust collector is below 300 mm. The wide pole distance refers to electric dust removal with a pole distance of more than 400 mm. The other development direction is narrow polar distance, and the narrow polar distance electric dust collector enters various civil fields due to the characteristics of small volume, light weight and the like.

The existing electrostatic type oil fume purifier has two main purifying units, including honeycomb cylinder and plate line, and has the principle of utilizing electric field structure to adsorb oil fume. When the purifying equipment works, high-voltage direct-current voltage is applied to the cathode and the anode of the electric field to form a high-voltage electric field, and the high-voltage electric field can adsorb oil smoke particles and purify smoke. Specifically, the cathode and the anode of the electric field are added with high-voltage direct-current voltage, air near the cathode in the electric field is ionized, relatively stable corona current flowing from the cathode to the anode is generated, the current mainly comprises electrons and anions, the density of the electrons and the anions can reach hundreds of millions of orders of magnitude per cubic centimeter, and the passing oil smoke particles collide with the electrons and the anions on the accessory belt, namely charge, migrate and deposit to the anode, so that the process of capturing, separating and purifying the oil smoke particles from gas is completed.

Other term explanations, windage: resistance to airflow. Dust collection area: refers to the sum of the areas of the anode plates, and is generally the case. The larger the dust collection area is, the better the purifying effect is. Cleaning period: after the device is used for a period of time, oil dirt can be deposited on the electric field structure and the inner wall of the machine body. To maintain high purification efficiency and reduce fire hazards, the equipment must be cleaned periodically. The longer the cleaning cycle, the lower the running cost if high efficiency of removing the soot can be maintained.

The existing plate-line type oil smoke purifier has the defects of small dust collection area, poor purifying effect and the like; the honeycomb cylinder type oil fume purifier has the defects of difficult processing, easy accumulation of oil stains in the pipe, uneven electric field caused by deflection of a cathode needle due to the fact that the cathode needle is easy to shake due to the impact of oil fume, and the like.

Disclosure of Invention

The invention aims to provide an oil fume purifier with large dust collection area and long cleaning period under the same volume.

The technical scheme adopted by the invention is as follows:

the oil fume purifier comprises a shell with an inlet and an outlet at the front end and the rear end, wherein filter screens are arranged at the inlet and the outlet of the shell, an oil collecting groove for collecting waste oil is arranged below the shell, a plurality of layers of electrode pipes which are coaxially nested and have different diameters are arranged between the two filter screens, electrodes with different polarities are loaded between any two adjacent electrode pipes to enable the electrode pipes to absorb oil fume, and drainage grooves which are convenient for the waste oil to flow out of the electrode pipes are arranged on each electrode pipe.

As an improvement of the scheme, each electrode tube comprises circular rings at two ends and a plurality of oil suction plates which are arranged between the two circular rings and distributed along the circumference, any two adjacent oil suction plates are staggered, and a plurality of groups of drainage grooves are formed on the circumference of the electrode tube.

As an improvement of the scheme, each electrode tube is a cylinder, and strip-shaped notches for forming a plurality of drainage grooves are formed in the tube wall of each electrode tube.

As an improvement of the scheme, each electrode tube is a cylinder, and a plurality of through holes for forming drainage grooves are formed in the tube wall of each electrode tube.

As an improvement of the scheme, a fan blade which spins by utilizing the impulse of the oil smoke is arranged between the filter screen at the inlet of the shell and the electrode tube.

As an improvement of the above-mentioned scheme, the electrode tube includes an inner layer tube and an outer layer tube, the inner layer tube being negatively charged, the outer layer tube being positively charged.

As an improvement of the scheme, the shell is a cylinder which is horizontally arranged, and the oil collecting groove is arranged on the outer wall of the shell along the axial direction of the shell.

As an improvement of the scheme, an oil separation grid is arranged between the oil collecting groove and the shell.

The invention has the beneficial effects that: the oil fume purifier is provided with a plurality of groups of filtering parts, so that the oil fume can be fully absorbed; meanwhile, the circumferential surface is used as an adsorption surface, the dust collection area is larger under the same volume, the mutually nested electrode tubes are stable in structure and not easy to deviate, particularly, drainage grooves are formed in the tube walls of the electrode tubes, when oil stains gather more, the oil stains can flow to the oil collection groove through the drainage grooves by means of gravity and cannot be accumulated in the purifier in a large quantity, and therefore the cleaning period is prolonged.

Drawings

The invention is further described below with reference to the accompanying drawings:

fig. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view of a second electrode tube assembly of the present embodiment;

fig. 3 is a schematic view of a third electrode tube combination of the present embodiment.

Detailed Description

Referring to fig. 1 to 3, the invention relates to a lampblack purifier, which comprises a shell 1 with an inlet and an outlet at the head end and the tail end, wherein in fig. 1, the left side is the inlet of the shell 1, and the right side is the outlet of the shell 1; three different filter parts have been set gradually in the casing 1, be provided with the receipts oil groove 4 of collecting waste oil on the casing 1, first filter part is for being close to the filter screen 2 of casing 1 import, and the second filter part includes coaxial nested and the electrode pipe 5 of diameter size inequality of a plurality of layers, and the electrode of loading different polarity between arbitrary two adjacent electrode pipes 5 is used for adsorbing the oil smoke, all is provided with the drainage groove of being convenient for waste oil follow in the electrode pipe 5 on each electrode pipe 5. The third group of filtering parts is a filter screen 2 near the outlet of the shell 1.

The circumferential surface is used as an adsorption surface, the dust collection area is larger under the same volume, and particularly, the drainage grooves are formed in the pipe wall of each electrode pipe 5, so that when oil stains gather more, the oil stains can naturally flow to the oil collection groove 4 through the drainage grooves without accumulating in the purifier, and the cleaning period is prolonged.

Taking a pipeline with unit diameter and unit height as an example, arranging a dust collection surface on the circumference, wherein the area is about pi; the dust collection surface is changed into a plate shape, three dust collection plates are suitable to be installed in the pipeline, and the two sides of the middle plate or the single side of the left plate and the right plate are taken as the dust collection surface, so that the area is about 2.

The inner and outer coaxial electrode tubes 5 have high strength, impact resistance, stable connection and uniform electric field after combination, and can avoid accidents.

The second set of filter elements comprises three embodiments. In the first embodiment, each electrode tube 5 is a wind wheel structure, the wind wheel structure comprises two circular rings and a plurality of oil suction plates 51 which are arranged between the two circular rings and distributed along the circumference, any two adjacent oil suction plates 51 are staggered, and a plurality of groups of drainage grooves are formed on the circumference of the electrode tube 5. The wind wheel structure has good heat dissipation performance, large dust collection area, low wind resistance, stable cathode and anode structure and ensures ionization effect. Particularly, the disassembly is convenient, and a plurality of oil suction plates 51 are only required to be inserted between two circular rings during the assembly.

In the second embodiment, each electrode tube 5 is a cylinder, and a plurality of strip-shaped notches are arranged on the tube wall of each electrode tube 5, and the inner wall and the outer wall of each electrode tube 5 are communicated to form a drainage groove.

In the third embodiment, each electrode tube 5 is a cylinder, a plurality of through holes are arranged on the wall of each electrode tube 5, and the inner wall and the outer wall of each electrode tube 5 are communicated to form a drainage groove.

The fume flow moves forward in the pipeline under the traction effect of the fan, and the flow is uneven due to the fact that the pipeline is changeable or the traction force is uneven, namely, the flow is uneven when the fume enters the fume purifier. In general, the better the air-homogenizing effect is, the better the purifying effect is. As a preferred embodiment, a fourth group of filtering parts is further arranged between the first group of filtering parts and the second group of filtering parts, and the fourth group of filtering parts are fan blades 3 which spin by utilizing the impulse force of the oil smoke.

The fan blades 3 spin to achieve the effect of automatic air balancing, and meanwhile, large oil smoke particles can be effectively captured, particularly oil dirt is thrown to the inner wall of the shell 1, and once the oil dirt particles are in contact with the shell 1, inertial force is lost and flows into the oil collecting groove 4 along the inner wall of the shell 1 by self gravity.

As known from the electrostatic adsorption principle, the oil smoke is mainly concentrated on the positive electrode side, and in this embodiment, the electrode tube 5 includes an inner layer tube and an outer layer tube, the inner layer tube is negatively charged, and the outer layer tube is positively charged. The ring of the electrode tube 5 at the inner layer is connected with a high-voltage power supply cathode, and the oil suction plate 51 is naturally negatively charged; the ring of the outer electrode tube 5 is connected with a high-voltage power supply anode, and the oil suction plate 51 is positively charged.

As a preferred embodiment, the housing 1 is a horizontally placed cylinder, and the oil receiving groove 4 is installed on the outer wall of the housing 1 in the axial direction of the housing 1.

As a preferred embodiment, an oil separation grid 41 is installed between the oil receiving groove 4 and the housing 1.

A shaft, not shown, strings the fan blade 3 and the two electrode tubes 5, and fixes the shaft into the housing 1.

Aiming at the characteristics of multiple oil smoke components and different particle sizes, the method firstly filters larger oil smoke impurities through a filter screen 2, and then intercepts and captures larger oil dirt particles through a layer of fan blades 3 which spin in normal wind pressure; finally, billions of electric ions generated by the cathode are utilized to charge the oil smoke particles passing through the high-voltage electric field of the original wind wheel structure and are adsorbed to the large-size and anode electrode tube 5 wind wheel structure, so that the aim of purifying is fulfilled. The three purifying and collecting impurities such as oil smoke fall to the oil collecting groove 4 at the bottom along the oil suction plate 51 and along the inner wall of the shell 1 under the action of gravity.

Innovative unpowered self-rotating fan blade 3 has the advantages of good effect of intercepting and capturing larger greasy dirt particles, good air homogenizing effect and no energy consumption. Compared with other technologies or structures, the novel primary-secondary wind wheel electric field structure has the characteristics of stable structure, difficult deviation, large dust collection area, good heat dissipation effect, low wind resistance, no oil dirt accumulation, long cleaning period and the like

Of course, the present design is not limited to the above embodiment, and a combination of different features of the above embodiments can also achieve a good effect. Equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention, and these equivalent modifications or substitutions are intended to be included within the scope of the present claims.

Claims

1. The utility model provides a lampblack purifier which characterized in that: including casing (1) that head and tail both ends have import and export, the import and the exit of casing (1) all are provided with filter screen (2), casing (1) below is provided with oil collecting groove (4) of collecting waste oil, two be provided with between filter screen (2) a plurality of layers coaxial nest and electrode tube (5) that the diameter size is unequal, arbitrary two are adjacent the electrode messenger of loading different polarity between electrode tube (5) adsorb the oil smoke, each all be provided with on electrode tube (5) be convenient for waste oil follow the drainage groove of outflow in electrode tube (5), each electrode tube (5) are wind wheel structure, electrode tube (5) all including be located the ring at both ends and install a plurality of oil absorption boards (51) that distribute along the circumference between two rings, arbitrary two are adjacent stagger between oil absorption board (51), form multiunit drainage groove on electrode tube (5) circumference.

2. A smoke purifier as claimed in any one of claims 1, wherein: a fan blade (3) which spins by utilizing the impulse of the oil smoke is also arranged between the filter screen (2) at the inlet of the shell (1) and the electrode tube (5).

3. A smoke purifier as claimed in any one of claims 1, wherein: the electrode tube (5) comprises an inner layer tube and an outer layer tube, the inner layer tube is negatively charged, and the outer layer tube is positively charged.

4. A smoke purifier as claimed in any one of claims 1, wherein: the shell (1) is a cylinder which is horizontally arranged, and the oil collecting groove (4) is arranged on the outer wall of the shell (1) along the axial direction of the shell (1).

5. A smoke purifier as claimed in any one of claims 1, wherein: an oil separation grid (41) is arranged between the oil collecting groove (4) and the shell (1).