CN106310835B - Dust collecting device for air filter test - Google Patents
Dust collecting device for air filter test Download PDFInfo
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- CN106310835B CN106310835B CN201610887701.0A CN201610887701A CN106310835B CN 106310835 B CN106310835 B CN 106310835B CN 201610887701 A CN201610887701 A CN 201610887701A CN 106310835 B CN106310835 B CN 106310835B
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- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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Abstract
The invention provides a dust collecting device for an air filter test, which comprises an airflow rotating separation cavity, an air inlet connected to one side of the airflow rotating separation cavity, a gas filtering pressure relief device arranged at the upper end of the other side of the airflow rotating separation cavity, a dust guiding contraction cavity sequentially arranged at the lower end of the dust collecting cavity, a moving device for bearing the dust collecting cavity and the device, wherein the air inlet and the airflow rotating separation cavity are connected through a flange, the air tightness of the device is ensured, the dust collecting cavity and the dust guiding contraction cavity are connected through a buckle and are easy to open and close, dust is not scattered, the air inlet is provided with a shutter, the air inlet pressure is increased while gas is shunted, gas forms rotational flow better, the purification efficiency is greatly improved, and the airflow rotating separation cavity is internally provided with a gas turning-back type rotational flow pipe, so that the dust and the. The gas filtering and pressure relieving device consists of two circular nano filter material filter elements, has strong dust deposition capability, is convenient to clean, can be repeatedly used, and has high economic benefit.
Description
The technical field is as follows:
the invention relates to the field of machinery and air filtration, in particular to a dust collecting device for an air filter test.
Background art:
the air filter generally comprises a primary filter, a secondary filter, a dust extraction system and the like. Most dust separation goes out in the one-level filter will admitting air, and the filtering efficiency of one-level filter has decided air cleaner's life and the key factor of holding the dirt ability, and the effect of taking out the dirt system is outside the dust exhaust car that in time separates out the one-level filter, guarantees the filtering efficiency of one-level filter. The dust extraction system mainly comprises a centrifugal or axial flow fan, a pipeline system and a dust collection device, and the performance of the dust extraction pump and the dust extraction system is influenced by the backpressure of the dust extraction pump or the resistance and fluctuation change of the dust extraction system. The change in the performance of the dust extraction system will affect the filtration efficiency of the primary filter and thereby affect the performance of the air filter and the accuracy of the service life test.
At present, the air blower that mainly uses in China draws a dirt, and this mode produces the negative pressure air current through air blower work, takes out dust collection device to the dust, but the device pipeline is longer, and the dust is piled up in the pipeline easily, and produced resistance is great to drawing the air current, having influenced the work in service behavior of drawing the dirt pump.
The invention content is as follows:
in order to solve the defects of the prior art, the invention provides a dust collecting device with a novel structure for an air filter test, which is a basic unit structure in the air filter test, simulates the working state of a dust pumping system of the air filter, and achieves the purposes of truly evaluating the actual application level of the air filter and solving the problem of environmental protection and emission.
A dust collecting device for an air filter test comprises an air inlet, an air flow rotating separation cavity, a dust guiding shrinkage cavity, a dust collecting cavity and a gas filtering pressure relief device which are sequentially arranged along the air flow direction; and a connecting piece is arranged between the air inlet and the airflow rotating separation cavity.
The first preferred scheme is that the air inlet is provided with a shutter, a filter and a filter screen, and the filter comprises a first-stage honeycomb duct filter and a second-stage cyclone duct filter, wherein the first-stage honeycomb duct filter is arranged on the inner surface and the outer surface of the purifier in an inclined mode, and the second-stage cyclone duct filter is arranged on the inner surface and the outer surface of the purifier in a perpendicular mode.
The second preferred scheme is that the air inlet is provided with a shutter, a filter and a filter screen, and the filter is divided into a first-stage filter and a second-stage filter.
The third preferred scheme is that the length of the airflow rotating separation cavity is 2000mm, the width of the airflow rotating separation cavity is 1000mm, and a dust tangential separation device is arranged in the dust guiding shrinkage cavity, and the tangential angle of the dust tangential separation device is not less than 30 degrees.
In a fourth preferred scheme, the filter screen is a polyester non-woven fabric with the aperture of 3.0-5.0 mu m and the porosity of 70-80%.
The fifth preferred scheme is, the dust direction contracts the chamber appearance and is hopper-shaped, the dust collect the chamber with dust direction contracts the chamber and adopts hasp connection.
According to a sixth preferred scheme, the gas filtering and pressure relieving device consists of two circular nano filter material filter elements.
In summary, compared with the closest technical solution, the technical solution provided by the present invention has the following excellent effects:
1. according to the dust collecting device, the air inlet is connected with the dust collecting cavity through the flange, so that the air tightness of the device is guaranteed.
2. According to the dust collecting device, the dust collecting cavity is connected with the dust guiding shrinkage cavity through the buckles, so that the dust collecting device is easy to open or close, and dust is prevented from scattering.
3. According to the dust collecting device, the gas filtering and pressure relieving device is composed of the two circular nano filter material filter elements, the dust collecting capacity is strong, the cleaning is convenient, the dust collecting device can be repeatedly used, and the economic benefit is high.
4. According to the dust collecting device, the air inlet shutter is arranged at the air inlet, so that air is divided, air inlet pressure is increased, air forms rotational flow better, and purification efficiency is greatly improved.
5. According to the dust collecting device, the filter screen material used in the shutter has a strong filtering effect on PM2.5, the cost is low, and the maintenance and the replacement of consumables are very convenient.
Drawings
FIG. 1 is a schematic view showing the construction of a dust collecting apparatus for an air cleaner test;
FIG. 2 is a front view of a dust collection device for an air cleaner test;
FIG. 3 is a schematic view of the air intake structure;
FIG. 4 is a schematic view of the configuration of the inlet primary filter;
FIG. 5 is a schematic view of the structure of an air inlet filter screen;
FIG. 6 is a schematic view of a structure of a reentrant swirl tube.
Description of reference numerals:
1-an air inlet; 2-an airflow rotating separation cavity; 3, guiding dust to a shrinkage cavity; 4-a dust collection chamber; 5-gas filtering pressure relief device; 6-a mobile device; 7-a frame; 8-louver blades; 9-a drive device; 10-S-shaped louver blades; 11-frame; 12-a scaffold; 13-a swirl tube; 14-a wind deflector; 15-a filter screen; 16-a draft tube; 17-air inlet flow guide arc plate; 18-air outlet flow guide arc plate; 19-outer frame; 20-pleating; 21-filter cotton; 22-central outlet duct; 23-gas tangential gas inlet pipe; 24-cyclone tube body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments in the present invention. All other embodiments obtained by the person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention. The technical scheme provided by the invention is explained in detail in the following with reference to the attached drawings.
Example one
As shown in fig. 1, for the various dust collecting devices for air filter tests provided by the invention, the dust collecting device comprises an airflow rotation separation chamber 2, an air inlet 1 vertically connected to one side of the airflow rotation separation chamber, an air filtering pressure relief device 5 arranged at the upper end of the other side of the airflow rotation separation chamber, a dust guide contraction chamber 3 arranged at the lower end of the airflow rotation separation chamber, a dust collecting chamber 4 and a moving device 6 for bearing the device, wherein the air inlet 1 is connected with the airflow rotation separation chamber 2 by a flange, the airflow rotation separation chamber 2 is internally provided with a dust tangential separation device, the air inlet 1 is funnel-shaped and comprises an installation frame, and an outer louver, an inner louver, a filter and a filter screen 15 which are arranged in sequence, as shown in fig. 4, the filter comprises a bracket 12, a flow guide pipe 16, an air inlet flow guide arc plate 17 and an air outlet flow guide arc plate 18 which are, the air inlet position is less than the gas outlet, air inlet water conservancy diversion arc board 17 is equipped with to air inlet open-ended downside, air inlet water conservancy diversion arc board 17 still an organic whole is connected with the spoiler, the whole body forms the S-shaped, the upside of gas outlet is equipped with air outlet water conservancy diversion arc board 18, when the mixture of gas-liquid-solid reachs gas outlet department, air outlet water conservancy diversion arc board 18 can make the mixture form certain centrifugal force, because the weight of liquid molecule and solid molecule will be greater than the weight of gas molecule, then the centrifugal force that liquid molecule and solid molecule received is also greater than the centrifugal force that gas molecule received, like this, when adjusting the admission speed of mixture to certain numerical value, liquid molecule and solid molecule are got rid of under the effect of centrifugal force promptly on the guide plate of below, gas then continues forward along the pipeline, realize.
The spoiler is also arc-shaped, and the opening of the spoiler is just opposite to the opening of the air inlet flow guide arc plate 17, so that the centrifugal effect at the air inlet can be improved, and the mixture can be prevented from entering the gap between the two gas channels. In addition, a gap is properly reserved between the lower end of the flow baffle and the flow guide pipe positioned below the flow baffle, so that liquid molecules and solid molecules which are centrifuged out can flow downwards in a spiral reciprocating manner, and finally, the liquid molecules and the solid molecules are collected at the lowest air outlet.
As shown in fig. 3, the secondary filter includes a wind screen 14 parallel to the inside and outside of the purifier and a cyclone tube 13 penetrating the wind screen 14, and the cyclone tube 13 is uniformly arranged in the wind screen 14.
The outer louvres comprise a frame 7 parallel to the inside and outside of the purifier and louvres 8 in the frame connected to a drive 9. The driving device 9 is electrically connected with a working power supply arranged on the outdoor equipment, and the louver blades 8 are perpendicular to the inside and outside of the purifier when in work and are parallel to the inside and outside of the purifier when not in work. The drive device includes: the driving mechanism is connected with the driving motor. The driving motor comprises a shaft, a stator, a rotor, a coil winding, a sensor and fan blades, wherein the shaft, the stator and the rotor are arranged in the shell in sequence, and the coil winding, the sensor and the fan blades are arranged in the stator.
The inner louver includes a frame 11 parallel to the inside and outside of the cleaner and S-shaped louvers 10 provided in the frame and having a longitudinal section elongated in the longitudinal direction.
As shown in fig. 5, the filter net includes an outer frame 19 parallel to the inside and outside of the purifier and a filter cotton 21 having a plurality of parallel pleats 20 fixed to the inner wall of the outer frame.
The sliding rails are arranged at two ends of the air inlet, the sliding rails are provided with U-shaped sliding grooves matched with the outer louver, the inner louver, the filter and the filter screen, and pulleys can be arranged at two ends of the outer louver, the inner louver, the filter and the filter screen, so that the components can be conveniently detached and cleaned.
Example two
As shown in fig. 1, the gas to be treated firstly enters from the gas inlet 1, the gas entering from the gas inlet 1 enters through the gas tangential gas inlet pipe 23 arranged in the gas flow rotation separation cavity 2, the dust sinks under the action of the cyclone tube body 24, then the gas enters through the central gas outlet pipe 22 to the dust guide collection cavity 3, and then the gas falls into the dust collection cavity 4 through the dust guide collection cavity 3, and along with the dust sinking, the gas is discharged through the gas filtering pressure relief device 5.
A circular nano filter material filter element is arranged in the gas filtering pressure relief device 5, and the circular nano filter material filter element is a filter element produced by the following method:
(1) preparing a spinning solution by using polybutylene succinate (PBS) as a raw material and hexafluoroisopropanol as a solvent according to the mass fraction of 20-35%, and adding 0.2-0.6% of nano-silver into the spinning solution to prepare the spinning solution;
(2) using a bubble electrostatic spinning method, adsorbing a nanofiber membrane prepared by bubble electrostatic spinning under the conditions of 20-35kV, spinning distance range of 15-20cm, surface tension of 24-26mN/m regulated by surfactant octylphenyl polyoxyethylene ether (TX-100) and conductivity of 60-210 mus regulated by potassium chloride without base salt on a base cloth PP melt-blown non-woven fabric at the running speed of 1.5m/30min, immediately compounding the base cloth PP melt-blown non-woven fabric with another layer of base cloth PP melt-blown non-woven fabric by using a flat vulcanizing machine under the conditions of compounding pressure of 6-8MPa and compounding temperature below 80 ℃, then using a pair of embossing rollers to emboss the well-compounded filter core material on a hot rolling machine, wherein the size of the embossing roller points is 0.2 multiplied by 0.25cm, the average distance between the embossing points is 3-5cm, and using a mode that the embossing points are inclined, the included angle between the inclined direction of the rolling point and the central line of the hot roll shaft is 45 degrees, the hot rolling temperature is controlled to be more than 190 ℃, and the pressure of the hot roll is controlled to be 40-60N/mm.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the protection scope thereof, and although the present application is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: numerous variations, modifications, and equivalents will occur to those skilled in the art upon reading the present application and are within the scope of the claims appended hereto.
Claims (3)
1. A dust collecting device for an air filter test comprises an air inlet, an airflow rotation separation cavity, a dust guide contraction cavity, a dust collecting cavity and a gas filtering pressure relief device, wherein the air inlet is vertically connected to one side of the airflow rotation separation cavity; the method is characterized in that: a connecting piece is arranged between the air inlet and the airflow rotary separation cavity;
a shutter, a filter and a filter screen are sequentially arranged in the air inlet along the air inlet inflow direction, and the filter is divided into a primary filter and a secondary filter;
the first-stage filter comprises a support, a flow guide pipe, an air inlet flow guide arc plate and an air outlet flow guide arc plate, the support is parallel to the side wall, connected with an air inlet, of one side of the airflow rotation separation cavity, the air inlet flow guide arc plate, the flow guide pipe and the air outlet flow guide arc plate are sequentially connected along the air inlet inflow direction, the air inlet position of the flow guide pipe is lower than the air outlet position of the flow guide pipe, the air inlet flow guide arc plate is arranged on the lower side of the air inlet opening of the flow guide pipe, the air inlet flow guide arc plate is further integrally connected with a flow baffle plate which is integrally S-shaped, the air;
the secondary filter comprises a wind shield and a cyclone tube penetrating through the wind shield, the wind shield is parallel to the side wall of one side of the airflow rotation separation cavity, which is connected with the air inlet, and the cyclone tube is uniformly arranged in the wind shield;
the filter screen is a polyester non-woven fabric with the aperture of 3.0-5.0 mu m and the porosity of 70-80%;
the dust guide shrinkage cavity is funnel-shaped, and the dust collection cavity is connected with the dust guide shrinkage cavity by adopting a hasp;
the gas filtering pressure relief device consists of two circular nano filter material filter elements;
the circular nano filter material filter element is produced by the following method:
(1) preparing a spinning solution by using polybutylene succinate (PBS) as a raw material and hexafluoroisopropanol as a solvent according to the mass fraction of 20-35%, and adding 0.2-0.6% of nano-silver into the spinning solution;
(2) using a bubble electrostatic spinning method, adsorbing a nanofiber membrane prepared by bubble electrostatic spinning under the conditions of 20-35kV, spinning distance range of 15-20cm, surface tension of 24-26mN/m regulated by surfactant octylphenyl polyoxyethylene ether (TX-100) and conductivity of 60-210 mus regulated by potassium chloride without base salt on a base cloth PP melt-blown non-woven fabric at the running speed of 1.5m/30min, immediately compounding the base cloth PP melt-blown non-woven fabric with another layer of base cloth PP melt-blown non-woven fabric by using a flat vulcanizing machine under the conditions of compounding pressure of 6-8MPa and compounding temperature below 80 ℃, then using a pair of embossing rollers to emboss the well-compounded filter core material on a hot rolling machine, wherein the size of the embossing roller points is 0.2 multiplied by 0.25cm, the average distance between the embossing points is 3-5cm, and using a mode that the embossing points are inclined, the included angle between the inclined direction of the rolling point and the central line of the hot roll shaft is 45 degrees, the hot rolling temperature is controlled to be more than 190 ℃, and the pressure of the hot roll is controlled to be 40-60N/mm.
2. The dust collecting device of claim 1, wherein the airflow rotating separation chamber has a length of 2000mm and a width of 1000mm, and the airflow rotating separation chamber is provided with a dust tangential separation device, and the tangential angle of the dust tangential separation device is not less than 30 °.
3. The dust collecting device of claim 2, wherein the dust tangential separation device comprises a cyclone tube body, a gas tangential inlet tube and a central outlet tube; one end of the rotational flow pipe body is axially connected with the central air outlet pipe, and the other end of the rotational flow pipe body is axially connected with the dust guiding shrinkage cavity; the gas tangential gas inlet pipe is connected with the side wall of the rotational flow pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887701.0A CN106310835B (en) | 2016-10-11 | 2016-10-11 | Dust collecting device for air filter test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887701.0A CN106310835B (en) | 2016-10-11 | 2016-10-11 | Dust collecting device for air filter test |
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| Publication Number | Publication Date |
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| CN106310835A CN106310835A (en) | 2017-01-11 |
| CN106310835B true CN106310835B (en) | 2020-03-27 |
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| CN201610887701.0A Active CN106310835B (en) | 2016-10-11 | 2016-10-11 | Dust collecting device for air filter test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168057A (en) * | 2016-12-07 | 2018-06-15 | 中电普瑞科技有限公司 | A kind of air inlet for air-cooled outdoor equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645768A (en) * | 2015-02-10 | 2015-05-27 | 北京中能诺泰节能环保技术有限责任公司 | Wet-type cyclone dust removal device |
| CN205611097U (en) * | 2016-04-07 | 2016-09-28 | 江西山水光电科技股份有限公司 | Outdoor rack dust screen of detachable picture peg type |
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- 2016-10-11 CN CN201610887701.0A patent/CN106310835B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645768A (en) * | 2015-02-10 | 2015-05-27 | 北京中能诺泰节能环保技术有限责任公司 | Wet-type cyclone dust removal device |
| CN205611097U (en) * | 2016-04-07 | 2016-09-28 | 江西山水光电科技股份有限公司 | Outdoor rack dust screen of detachable picture peg type |
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