CN105817102A - Purification device suitable for removing fine particulate matters - Google Patents

Abstract

The invention relates to a fluid purification device for a micron-level solid particle environment. Including the shell of the purification device, the outlet of the net air, and the air inlet. The interior of the shell of the purification device includes a dust collection chamber, a gas purification channel and a gas collection box; a polygonal cyclone is arranged inside the purification channel, and the air outlet at the top of the cyclone is connected to the gas collection box. Connection, the dust outlet at the bottom is connected with the dust collection box; the inner wall of the shell inside the gas purification channel is provided with a fine needle-like coating; the dust collection chamber and the gas collection box are partially or completely filled with fillers; the purification device is a first-class or multilevel structures. Due to the improvement of the structure, the distribution of the flow field inside the purification device can be optimized, the impurities contained in the fluid will be separated, and the separation efficiency of micron-scale impurities will be improved, so as to realize the effective purification of the fluid, and the structure is simple, the processing is convenient, and the cost is low. It is cheap, saves energy, does not generate additional purified sewage, and can achieve a separation efficiency of more than 97% for impurities with a diameter of 0.5-5 μm.

Description

Purification device for fine particle removal

technical field

The invention relates to the field of fluid purification, in particular to a fluid purification device for a micron-scale solid particle environment.

Background technique

Since the fine particles are easy to float in the air, and the fine particles will agglomerate under the action of Brownian, it is very easy to cause a wide range of suspended dust pollution. hazards. For fluid purification and delivery systems, it will seriously affect the service life of the equipment. Therefore, how to remove the tiny particle impurities contained in the fluid is a problem to be solved in the separation process.

In the title of the invention "a water-based air purification device suitable for haze and dust environment" (application number: 201410634455.9), an air purification device including an ultra-fine bubble generator and a water mist generator is proposed, although It has great promotion and application value, but the internal components of the device are complicated. On the one hand, it achieves the purpose of purifying the gas, and on the other hand, it produces additional re-purified dusty sewage.

In the invention titled "air purifier with dehumidification function" (application number: 201410228375.3), a purifier with air purification and dehumidification capabilities is proposed, including an electrostatic dust collection filter and a refrigeration cycle device. The refrigeration device includes Refrigerant, evaporator or capillary tube and other structures, by using low-cost capillary tube as the expansion element of the refrigeration cycle device, the temperature of the evaporator is kept below the dew point, so as to achieve the effect of dehumidification and dust removal, but the energy consumption of the dust collector is large, and The air intake speed cannot exceed the maximum air volume, otherwise it will be difficult to ensure the matching of dehumidification capacity and air purification capacity.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a simple structure, convenient processing, energy saving, small space occupation, simple maintenance, and will not generate additional purified sewage. It is a purification device with high feed rate and high processing efficiency for micron-sized particles.

Technical scheme of the present invention is as follows:

A purification device for micron-sized particles, including a purification device housing, a net air outlet, and an air inlet. The interior of the purification device housing includes a dust collection chamber, a gas purification channel, and a gas collection box; polygonal cyclones are arranged inside the purification channel, and the cyclone The air outlet at the top of the sub is connected to the gas collection box, and the dust outlet at the bottom is connected to the dust collection box; the inner wall of the shell inside the gas purification channel is provided with a fine needle-like coating; part or all of the dust chamber and the gas collection box Filled with filler; the purification device is a one-stage or multi-stage structure.

The cyclone is composed of a polygonal cylinder section with no less than 5 sides and a polygonal cone section with the same number of sides. There is a torsion angle β between the cylinder section and the cone section, and the cross-sectional centerline of the top of the cylinder section and the bottom of the cone section The angle β is in the range of 0-72 degrees. The arrangement of cyclones includes spiral, ring, triangle, polygon or ellipse.

The surface roughness of the fine needles on the micro-needle-like coating on the inner surface of the gas purification channel is not greater than 1 micron, the needle height is not greater than 2.5 mm, and the material is silicone and polyurethane polymers, including acrylic polysiloxane alkane or epoxy polysiloxane.

The packing is composed of metal corrugated plates, and the corrugated plates are arranged vertically to form vertical meshes.

The surface roughness of the metal corrugated board is greater than 1.6 microns, the cross section of the metal corrugated board is sinusoidal, the surface of the corrugated board is perforated, the porosity is 0.5%-70%, the material is iron-based, aluminum-based or iron-aluminum alloy, and its volume resistance is less than 10 ⁶ ohms, the electrostatic electrification voltage is less than 50V, and the half-life time is greater than 0.5 seconds.

When the filled filler is more than two layers, the misalignment arrangement angle between the layers is 1-179 degrees.

The outer structure of the shell is cylindrical or polygonal, the ratio of the total height of the purification device to the cylinder diameter is 0.1-40, and the total height of the cylinder section and the cone section of the cyclone does not exceed the total height of the gas purification channel .

The inlet and outlet of the purification device are arranged tangentially, vertically or laterally.

When in use, open the impurity-containing fluid channel control valve connected to the air inlet of the purification device, the impurity-containing fluid enters the gas purification channel through the inlet of the cyclone separator, and the fine needle-like coating inside the purification channel interacts with the channel to generate static electricity. It has a certain adsorption effect on the fine particles in the fluid; then the fluid enters the cyclone for cyclone separation. Inside the cyclone, the fluid rotates downward around the inner cylinder section of the air outlet, and the particles mixed in the fluid settle due to the inertial centrifugal force and collide with the inside of the cyclone separator shell, and are discharged from the dust removal port at the lower end of the cone section and enter the collection. Dust box: Due to the high fluid velocity, part of the fluid will also enter the dust box, and play a certain role in dehumidification and heat removal by interacting with the filler in it. The clean fluid from which impurities are separated moves from bottom to top under the rotating gravity of the high-pressure axial flow fan, and is discharged through the air outlet at the top of the cyclone dust collector and enters the gas collection box. Due to the existence of the corrugated plate, the surface area of the electrostatic dust collector is greatly increased, and the absorption Energy, and redistribute the fluid, and then enter the secondary purification channel through the net gas outlet to continue the separation of impurities, and finally realize the clean discharge of gas. The flow diagram of the purification device is shown in Figure 9. Using the purification device, the separation efficiency of impurities with a diameter of 0.5-5 μm can reach more than 97%.

Beneficial effects of the present invention: Since the gas purification channel of the purification device has fine capillaries formed by a fine needle-like coating, the coating interacts with the channel material to generate static electricity, and the impurities in the fluid can be separated in the first step through electrostatic action; The fluid enters the cyclone, and through the action of inertial centrifugal force, the impurity particles collide with the cyclone shell and enter the dust box to realize the second step of separation; in addition, both the dust box and the gas box are equipped with fillers, which can also Increase the area of electrostatic dust removal, absorb energy, and further dehumidify and dehumidify.

In summary, due to the improvement of the structure, the distribution of the flow field inside the purification device can be optimized, and the impurities contained in the fluid will be separated, especially the separation efficiency of micron-scale impurities will be greatly improved, so as to achieve effective purification of the fluid, and has Simple structure, convenient processing, low cost, energy saving, small space occupation, simple maintenance, high feeding speed can be used, no additional purified sewage will be generated, and the separation efficiency for impurities with a diameter of 0.5-5 μm can reach 97 %above.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of a secondary structure purification device for removing micron particles in the present invention.

Fig. 2 is a front perspective view (1) of a hexagonal cyclone with a twist angle and a front perspective view (2) of a hexagonal cyclone without a twist angle according to the present invention.

Fig. 3 is a top view of the cyclone with twist angle of the present invention.

Fig. 4 is a top view of different polygonal cyclones of the present invention.

Fig. 5 is a schematic diagram of the arrangement of cyclones with a single-stage basic structure of side inlet in the present invention.

Fig. 6 is a schematic diagram of the arrangement of the cyclones with a single-stage basic structure with a bottom vertical inlet in the present invention.

Fig. 7 is a schematic diagram of a corrugated plate according to Embodiment 1 of the present invention.

Fig. 8 is a schematic diagram of the fine needle-punched coating inside the casing according to Embodiment 1 of the present invention.

Fig. 9 is a flow chart of the purification device for removing micron particles in the present invention.

Fig. 10 is a schematic front view of Embodiment 2 of the present invention.

Fig. 11 is a schematic front view of Embodiment 3 of the present invention.

In the attached picture:

A. First-level dust collection box B. First-level gas purification channel C. First-level gas collection box D. Second-level annular dust collection box E. Secondary gas purification channel F. Secondary gas collection box G. Air inlet H. One Level clean air outlet I. Second level clean air outlet

1. Air outlet, 2. Polygon cylinder section, 3. Polygon cone section, 4. Dust removal port, 5. Filler, 6. Cyclone, 7. Needle-shaped coating

detailed description

The present invention will be described in further detail below through specific examples.

The purification device for micron-sized particles of the present invention includes a purification device housing, a net air outlet, and an air inlet, and the purification device housing is composed of a dust collection chamber, a gas purification channel, and a gas collection box. It is characterized in that: polygonal cyclones are arranged in an orderly horizontal direction inside the purification channel, the air outlet at the top of the cyclone is connected to the gas collection box, and the dust outlet at the bottom is connected to the dust collection box; the inside of the gas purification channel has Fine capillary channels formed by fine needle-punched coatings; part or all of the dust collection chamber and the gas collection box are filled with fillers composed of metal corrugated plates, and the corrugated plates are arranged vertically to form vertical mesh holes; The purification device described above has a one-stage or multi-stage structure. The number of stages of the purification device is determined according to the separation requirements. The single-stage basic structure of the device can be divided into two types: one is that the gas containing impurities enters from the tangential or side entrance. The top view of the internal structure is shown in Figure 5. The interior of the purification device There is also a cyclone in the center of the gas purification channel; the other is that the impurity gas enters vertically from the bottom. The center of the gas purification channel of this structure does not have a cyclone, which is the entrance of the impurity gas. The top view of this structure is shown in Figure 6. The lateral inlet structure is only suitable as the bottom structure, and the vertical inlet structure can be placed in any position. The structures of different levels are connected to the air inlet of this level through the air outlet of the upper level.

As a preferred solution, the cyclone is composed of a polygonal cylinder section with no less than 5 sides and a polygonal cone section with the same number of sides. The three-dimensional schematic diagram of the cyclone is shown in Figure 2, and the cross-sectional schematic diagram is shown in Figure 4. The cylinder There is a certain torsion angle β in the section or cone section, and the angle β between the top of the cylinder section and the centerline of the cross-section at the bottom of the cone section is between 0 and 72 degrees. The schematic diagram is shown in Figure 3.

As a preferred solution, the arrangement forms of the cyclones include spiral, ring, triangle, polygon and ellipse.

As a preferred solution, the surface roughness of the fine needles on the micro-needle-like coating on the inner surface of the gas purification channel is less than 1 micron, the needle height is less than 2.5 mm, and the material is silicone, polyurethane polymer, including acrylic poly Silicone, epoxy polysiloxane, but not limited to.

As a preferred solution, the surface roughness of the filled metal corrugated plate is greater than 1.6 microns, it is a structure of sine wave lines, installed horizontally, vertically or diagonally, the surface of the corrugated plate is perforated, and the void ratio is 0.5%-70%. It is iron-based, aluminum-based or iron-aluminum alloy, its volume resistance is less than 10 ⁶ ohms, the electrostatic electrification voltage is less than 50V, and the half-life time is greater than 0.5 seconds.

As a preferred solution, the filling layer composed of metal corrugated plates to be filled is not less than one layer, and when the packing is arranged in two or more layers, the misalignment angle between the layers is 1-179 degrees.

As a preferred solution, the outer structure of the purification device can be cylindrical or polygonal, the ratio of the total height of the purification device to the cylinder diameter is 0.1-40, and the total height of the cylinder section and the cone section of the cyclone is not Exceeds the total height of the gas purification channel.

As a preferred solution, the inlet and outlet of the purification device can be arranged in tangential, vertical, lateral and other directions.

Example 1

As shown in Figure 1, a secondary structure purification device for micron-sized particles, in which the primary structure is a basic structure with a tangential inlet, and the secondary structure is a basic structure with a bottom vertical inlet, and the two are connected through a primary net air outlet H ; The purification device includes a purification device housing, a first-level net air outlet H, and an air inlet G, and the purification device housing is composed of a first-level dust collection box A, a first-level gas purification channel B, a first-level gas collection box C, and a second-level gas collection box. It consists of a first-level annular dust collection box D, a second-level gas purification channel E, a second-level gas collection box F, and a second-level clean air outlet I. It is characterized in that: the first-level gas purification channel B and the second-level gas purification channel E are spirally arranged with hexagonal cyclones 6 in the horizontal direction, and the cross-sections of the top of the cyclone tube section and the bottom of the cone section The angle β of the center line is 0 degrees, the air outlet 1 at the top of the cyclone is connected to the first-level gas collection box C or the second-level air-collection box F, and the bottom dust outlet 4 is connected to the first-level dust collection box A or the second-level annular dust collection box Phase D is connected; the first-level gas purification channel B and the second-level gas purification channel E have a fine needle-like coating inside, and the needle height is 1 mm. The schematic diagram of the fine needle-like coating is shown in Figure 8; the first-level dust collection box A, The second-level annular dust collection box D, the first-level gas collection box C, and the second-level gas collection box F are filled with fillers 5 composed of corrugated plates, as shown in Figure 7. The surface roughness of the metal corrugated plates is 2.5 microns, which is a sine wave line The surface of the corrugated board is perforated, the porosity is 70%, the material is iron-based, the volume resistance is 2×10 ⁵ ohms, the electrostatic electrification voltage is 12V, and the half-life time is 2 seconds. The corrugated boards are arranged side by side. The mesh of row, described mesh is the regular hexagonal hole that vertical direction is arranged. The height-to-diameter ratio of the whole device is 5, and the total height of the cylinder section and the cone section of the cyclone is equal to the total height of the gas purification channel.

Example 2

As shown in Figure 10, a purification device for micron-sized particles, the purification device has a four-stage structure, wherein the first-stage structure is a basic structure with side inlets, and the rest of the structures are basic structures with vertical inlets at the bottom, and the structures at all levels pass through the air outlet. The device includes a purification device housing, a net air outlet, and an air inlet. The purification device housing is composed of a dust collection box, a gas purification channel, and a gas collection box. It is characterized in that: decagonal cyclones are spirally arranged in the horizontal direction inside the purification channel, the angle β of the centerline of the cross-section between the top of the cyclone cylinder section and the bottom of the cone section is 10 degrees, and the top of the cyclone comes out The gas port is connected to the gas collection box, and the bottom dust outlet is connected to the dust collection box; the inner wall of the gas purification channel has a fine needle-like coating, the needle height is 0.05 mm, and the surface roughness of the metal corrugated plate is 2.5 microns, which is sinusoidal The structure of the corrugated line, the surface of the corrugated plate is perforated, the porosity is 10%, the material is aluminum base, the volume resistance is 1×10 ⁴ ohms, the electrostatic electrification voltage is 36V, and the half-life time is 3.5 seconds. The corrugated plates are arranged in a staggered manner It is a multi-row mesh. The aspect ratio of the entire device is 6.5, and the total height of the cylinder section and the cone section of the cyclone is equal to 1/2 of the total height of the gas purification channel.

Example 3

As shown in Figure 11, a purification device for micron-sized particles, the purification device is a primary structure with a vertical inlet at the bottom, including a purification device housing, a net air outlet, and an air inlet. The purification device housing is composed of a dust box , Gas purification channel, gas collection box. It is characterized in that: pentagonal cyclones are arranged spirally in the horizontal direction inside the purification channel, the angle β between the top of the cylinder section of the cyclone and the center line of the cross-section of the bottom of the cone section is 30 degrees, and the top of the cyclone comes out The air port is connected to the gas collection box, and the bottom dust outlet is connected to the dust collection box; the inner wall of the gas purification channel has a fine needle-like coating, the needle height is 0.1 mm, and the surface roughness of the metal corrugated plate is 5.5 microns, which is sinusoidal The structure of the corrugated line, the surface of the corrugated board is perforated, the porosity is 30%, the material is iron-aluminum alloy, the volume resistance is 1× ¹⁰⁴ ohms, the electrostatic electrification voltage is 45V, and the half-life time is 5.5 seconds. The corrugated board is staggered Arranged as rows of meshes. The height-to-diameter ratio of the whole device is 1.5, and the total height of the cylinder section and the cone section of the cyclone is equal to 4/5 of the total height of the gas purification channel.

Claims (10)

1. A purification device for micron-sized particles, comprising a purification device housing, a net air outlet, and an air inlet, characterized in that: the inside of the purification device housing includes a dust collection chamber, a gas purification channel and a gas collection box; the interior of the purification channel is arranged The polygonal cyclone, the air outlet at the top of the cyclone is connected with the gas collection box, and the dust outlet at the bottom is connected with the dust collection box; the inner wall of the shell inside the gas purification channel is provided with a fine needle-like coating; the dust collection room, collection Part or all of the air box is filled with packing; the purification device has a one-stage or multi-stage structure. 2. The device according to claim 1, characterized in that: the cyclone is composed of a polygonal cylinder section with the number of sides not less than 5 and a polygonal cone section with the same number of sides, and there is a twist angle β between the cylinder section and the cone section , the angle β between the top of the cylinder section and the centerline of the cross-section of the bottom of the cone section is 0-72 degrees. 3. The device according to claim 1, characterized in that: the arrangement of the cyclone includes spiral, ring, triangle, polygon or ellipse. 4. The device according to claim 1, characterized in that: the surface roughness of the fine needles on the micro-needle-like coating on the inner surface of the gas purification channel is not greater than 1 micron, the needle height is not greater than 2.5 mm, and the material is silicon oxide Alkanes, polyurethane polymers, including acrylic polysiloxane or epoxy polysiloxane. 5. The device according to claim 1, characterized in that: the filler is composed of metal corrugated plates, and the corrugated plates are arranged vertically to form vertical meshes. 6. The device according to claim 5, characterized in that: the surface roughness of the corrugated metal plate is greater than 1.6 microns, the cross section of the corrugated metal plate has a sinusoidal structure, the surface of the corrugated plate is perforated, and the porosity is 0.5%-70%. 7. The device according to claim 6, characterized in that: the metal corrugated plate material is iron-based, aluminum-based or iron-aluminum alloy, its volume resistance is less than 10 ⁶ ohms, the electrostatic electrification voltage is less than 50V, and the half-life time is greater than 0.5 Second. 8. The device according to claim 5, characterized in that: when more than two layers of fillers are filled, the misalignment angle between the layers is 1-179 degrees. 9. The device according to claim 1, characterized in that: the outer structure of the shell is cylindrical or polygonal, the ratio of the total height of the purification device to the diameter of the cylinder is 0.1-40, the cylinder section of the cyclone and The total height of the cone section does not exceed the total height of the gas purification channel. 10. The device according to claim 1, characterized in that: the inlet and outlet of the purification device are arranged tangentially, vertically or laterally.