RU79802U1 - Combined filtration system - Google Patents

Combined filtration system Download PDF

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Publication number
RU79802U1
RU79802U1 RU2008135404/22U RU2008135404U RU79802U1 RU 79802 U1 RU79802 U1 RU 79802U1 RU 2008135404/22 U RU2008135404/22 U RU 2008135404/22U RU 2008135404 U RU2008135404 U RU 2008135404U RU 79802 U1 RU79802 U1 RU 79802U1
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RU
Russia
Prior art keywords
filter
cleaning
stage
filters
stages
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Application number
RU2008135404/22U
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Russian (ru)
Inventor
Владимир Васильевич Пчелкин
Леонид Алексеевич Прокофьев
Степан Николаевич Подлегаев
Ольга Валентиновна Лисицына
Павел Борисович Котов
Игорь Александрович Титов
Людмила Леонидовна Штангл
Юрген Шваб
Original Assignee
Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий-ВНИИГАЗ" (ООО "ВНИИГАЗ")
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Priority to RU2008135404/22U priority Critical patent/RU79802U1/en
Application granted granted Critical
Publication of RU79802U1 publication Critical patent/RU79802U1/en

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Abstract

The utility model is aimed at improving the efficiency of dust collection. The specified technical result is achieved by the fact that the combined air filtration system consists of filters of the first, second and third stages of cleaning, located in the first and second housings, interconnected in any known manner, the first housing has an input and output holes for cleaned air and equipped with stops for filters of the first and second stages, as well as clamps of the filter of the second stage, the walls of the first housing in the inlet The holes are equipped with protrusions perpendicular to its walls, the filter of the first stage of cleaning contains a moisture separator equipped on both sides with devices for fixing it in the first case, the filter of the second stage of cleaning is a pocket filter, under the filter of the first stage in the bottom of the first case there are holes for dropping moisture, filters of the third stage of cleaning are placed in the second case, filters of the first and second stages of cleaning are placed with a gap L, and filters of the second and third stages of cleaning are placed the gap with the gap L 1 , while the gap L between the filters of the first and second stages of cleaning lies in the range: L = (0.08 ÷ 0.2) 1 between the filters of the second and third stages of cleaning lies in the range: L 1 = (0.08 ÷ 0.25) · N 9 s.p. f-ly, 6 ill.

Description

The utility model is designed to clean air from dust and can be used in gas transmission systems, in particular in air-cleaning devices of gas turbine engines used in gas pumping units, in power plants, when supplying air for technological needs in ferrous and non-ferrous metallurgy, building materials industry, chemical industry etc. The invention allows for efficient air purification from fine dust by filtration.
The closest analogue to the claimed utility model is a filter unit for air purification, comprising a housing with inlet and outlet openings, cassettes with stiffeners located in the housing and including a mesh with filter material, while the cartridges are made in the form of hexagons located in the housing in the form honeycomb (AS USSR No. 797731, priority 01/17/1977).
A disadvantage of the known device is the low specific surface of the filter element, at which dust collection efficiency of only up to 90% is achieved.
When creating a real utility model, the technical problems of increasing the efficiency of dust collection were solved.
The stated technical problem was solved in that the filter installation for air purification consists of filters of the first, second and third stages of cleaning, located in the first and second housings, interconnected in any known manner, the first housing has inlet and outlet openings for the cleaned air and is equipped with stops for
filters of the first and second stages, as well as clamps of the filter of the second stage, the walls of the first housing in the inlet are provided with protrusions perpendicular to its walls, the filter of the first cleaning stage contains a moisture separator equipped on both sides with devices for fixing it in the first housing, the filter of the second cleaning stage represents a pocket filter, under the filter of the first stage in the bottom of the first housing there are holes for removing drip moisture, the filter of the third cleaning stage is located in the second housing, the filters of the first and second stages of cleaning are placed with a gap L, and the filters of the second and third stages of cleaning are placed with a gap L 1 , while the gap L between the filters of the first and second stages of cleaning lies within:
L = (0.08 ÷ 0.2) · N
where: H is the height of the filter housing of the first and second stages of cleaning, and the gap L 1 between the filters of the second and third stages of cleaning lies in the range:
L 1 = (0.08 ÷ 0.25) · N
The dehumidifier can be made in the form of a flat plate of trapping and moisture-removing material. Devices for fixing the moisture separator in the first housing may consist of lattices and pairs of fixing rods placed on both sides of the moisture separator. Lattices and fixing rods can be made of metal or other rigid material, such as carbon fiber. A pocket-type filter can consist of wedge-shaped cartridges made of filter material and installed in a supporting frame so that the second stage of cleaning is divided into dirty and clean air chambers. The ratio of the area of the inlet section of the filter of the second cleaning stage to the area of its output surfaces is in the range from 0.10 to 0.25.
The filter of the third stage of cleaning can consist of corrugated packets attached to the wedge-shaped supporting frames of the second housing, and the ratio of the area of the inlet section of the filter of the third stage of cleaning to the area of its output surfaces is in the range from 0.003 to 0.007. The corrugations of the filters of the third stage are placed perpendicular to the long side of the corrugated packet.
The utility model is illustrated by drawings, in which Fig. 1 shows a perspective view of the individual structural elements of a combined air filtration system, Fig. 2 shows a front view of a first housing, Fig. 3 shows a side view of a combined air filtration system, Fig. 4 - section AA in figure 2, figure 5 - node 1 in figure 4; figure 6 - node 2 in figure 4.
The combined air filtration system (filter unit for air purification) consists of filters of the first 1, second 2, and third 3 cleaning stages, located in the first 4 and second 5 cases, interconnected in any known manner, for example, by ultrasonic welding, bolts, etc. .
The first housing 4 has an inlet and an outlet for the air to be cleaned and is equipped with stops 6 and 7 for filters of the first and second stages of cleaning, respectively, as well as latches 8 of the filter of the second stage 2 of cleaning.
The walls 9 of the first housing 4 in the inlet are provided with protrusions 10 perpendicular to its walls.
The filter of the first cleaning stage 1 consists of a dehumidifier, which can be made in the form of a flat plate of material that collects and removes moisture. The filter of the first stage 1 is equipped on both sides with devices for fixing it in the first housing, which consist of
lattices 11 and pairs of fixing rods 12. The lattices 11 and fixing rods 12 can be made of metal or other rigid material, such as carbon fiber.
Under the filter of the first cleaning stage 1, openings 16 are made in the bottom of the first housing 4 for removing drip moisture.
The stops 6 and 7, the latches 8, the protrusions 10, the grilles 11 and the fixing rods 12 provide a fixed and tight connection of the filters of the first and second cleaning stages to the first housing
The filter of the second cleaning stage 2 is a pocket filter and may consist of wedge-shaped cartridges 13 made of filter material and installed in the supporting frame so that the second cleaning stage is divided into “dirty” 14 and “clean” air chambers 15. The ratio of the inlet area the cross section of the filter of the second cleaning stage to the area of its output surfaces can be in the range from 0.10 to 0.25.
The filter of the third cleaning stage 3 is located in the second housing 5 and consists of corrugated packets 17 installed in the wedge-shaped supporting frames of the second housing 18 and filled with sealant around the perimeter (not shown conventionally in the drawing). The ratio of the input cross-sectional area of the filter of the third cleaning stage to the area of its output surfaces is in the range from 0.003 to 0.007, and the corrugations of the filters of the third stage are placed perpendicular to the long side of the corrugated packet.
The filters of the first and second stages of cleaning are placed with a gap L, and the filters of the second and third stages of cleaning are placed with a gap L 1 , while the gap L between the filters of the first and second stages of cleaning lies within:
L = (0.08 ÷ 0.2) · N
where: N is the height of the filter housing of the first and second stages of cleaning,
and the gap L 1 between the filters of the second and third stages of cleaning lies within:
L 1 = (0.08 ÷ 0.25) · N
The combined filtration system was tested at the applicant's test bench.
During the operation of the combined filtration system, the cleaned medium (air) through the grate 11, held by a pair of rods 12, enters the moisture separator, in which it is cleaned of drip moisture and partially from solid impurities.
The first stage of purification is designed to trap and remove droplet moisture, to purify air from large inclusions and solid particles larger than 50 microns. The 540 × 540 mm filter was made of fiberglass material with a thickness of 50 mm, which corresponds to filtration class G2 according to DIN EN 779.
The presence of protrusions 10 on the walls 9 of the first housing 4, an abutment 6 for the filter of the first stage, grids 11 and pairs of rods 12 allows to reliably fix the moisture separator material in the first housing 4 without bending, and thereby prevent subsidence of the moisture separator material and the overflow of the crude medium.
The dried and partially purified air through the second grill 11 and a cavity of width L enters the second cleaning stage 2, which corresponds to the filtration class G4 of the same standard and is based on Synfasan synthetic material. 200 mm wedge-shaped pockets made of this material were mounted on a frame made of hard plastic. The second stage is designed to purify air from solid impurities larger than 10 microns.
The third cleaning stage corresponded to grades 7–9 according to DIN EN 779. Eight corrugated bags placed vertically (with horizontal corrugations) were installed in wedge-shaped supporting frames of the case made of hard plastic or metal, formed four wedge-shaped pockets and filled with sealant around the perimeter, which completely eliminated the flow of air bypassing the filter and
provided its tightness. The overall size of the section was 592 × 592 mm, the length of the corrugated packets was 296 mm. The filtration area was 18 m 2 . The third stage is intended for air purification from fine (less than 10 microns) solid impurities
Tests were conducted on dust according to GOST 8002-74 (grinding VNIITransmash) with a nominal capacity of 3400 m3 / hour. The cleaning efficiency in this case was 27.6% for the first stage, 41–51% for the second, and 98.2% for the third stage (90% for the closest analogue).
The implementation of the cavities between the filters of the first and second steps of length L, as well as between the filters of the second and third steps of length L 1 provides an effective collection of the separated liquid separator and the agglomerates formed in it and in the second stage from solid impurities.
Ensuring a tight connection of the filters of the first 1 and second 1 stages with the corresponding stops 6 and 7, as well as the presence of holes 16 under the dehumidifier, can reliably prevent the passage of the separated moisture behind the filter of the first and second stages to the filter of the third stage, which significantly increases the time of its operation.
The proposed design of a combined air filtration system provides for the replacement of the first and second stages of air purification without dismantling the entire structure (buildings 4 and 5) of the combined filtration system.

Claims (10)

1. Filter installation for air purification, characterized in that it consists of filters of the first, second and third stages of cleaning, located in the first and second housings, interconnected in any known manner, the first housing has an inlet and outlet for cleaned air and is equipped with stops for filters of the first and second stages, as well as clamps of the filter of the second stage, the walls of the first housing in the inlet are provided with protrusions perpendicular to its walls, the filter of the first cleaning stage contains moisture a separator equipped on both sides with devices for fixing it in the first case, the filter of the second stage of cleaning is a pocket filter, under the filter of the first stage in the bottom of the first case there are holes for removing drip moisture, the filter of the third stage of cleaning is located in the second case, the filters of the first and the second cleaning stages are placed with a gap L, and the filters of the second and third cleaning stages are placed with a gap L 1 , while the gap L between the filters of the first and second cleaning stages lies within
L = (0.08 ÷ 0.2) · N,
where: N is the height of the filter housing of the first and second stages of cleaning,
and the gap L 1 between the filters of the second and third stages of cleaning is within
L 1 = (0.08 ÷ 0.25) · N.
2. The filtering system for air purification according to claim 1, characterized in that the de-separator is made in the form of a flat plate of material that collects and removes water.
3. The filtering installation for air purification according to claim 1, characterized in that the devices for fixing the dehumidifier in the first housing consist of lattices and pairs of fixing rods placed on both sides of the dehumidifier.
4. The filter installation for air purification according to claim 3, characterized in that the grilles are made of metal or other rigid material, such as carbon fiber.
5. The filter installation for air purification according to claim 3, characterized in that the fixing rods are made of metal or other hard material.
6. The filtering installation for air purification according to claim 1, characterized in that the pocket-type filter consists of wedge-shaped cartridges made of filter material and installed in a supporting frame so that the second stage of cleaning is divided into “dirty” and “clean” air chambers .
7. The filter installation for air purification according to claim 1, characterized in that the ratio of the inlet cross-sectional area of the filter of the second cleaning stage to the area of its output surfaces is in the range from 0, .10 to 0.25.
8. The filter installation for air purification according to claim 1, characterized in that the filter of the third stage of cleaning consists of corrugated packets attached to the wedge-shaped supporting frames of the second housing.
9. The filter installation for air purification according to claim 8, characterized in that the ratio of the inlet cross-sectional area of the filter of the third cleaning stage to the area of its outlet surfaces is in the range from 0, .003 to 0.007.
10. The filter system for air purification according to claim 8, characterized in that the corrugations of the filters of the third stage are placed perpendicular to the long side of the corrugated packet.
Figure 00000001
RU2008135404/22U 2008-09-01 2008-09-01 Combined filtration system RU79802U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2008135404/22U RU79802U1 (en) 2008-09-01 2008-09-01 Combined filtration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2008135404/22U RU79802U1 (en) 2008-09-01 2008-09-01 Combined filtration system

Publications (1)

Publication Number Publication Date
RU79802U1 true RU79802U1 (en) 2009-01-20

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Family Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2491114C2 (en) * 2009-04-02 2013-08-27 В.Л. Горе Унд Ассошиэйтс Гмбх Cassette filter, filtration device and gas turbine with such cassette filter
RU171602U1 (en) * 2017-01-12 2017-06-07 Акционерное общество "СовПлим" Air filtration device
RU2636705C2 (en) * 2013-06-04 2017-11-27 Торстен ХЕРРМАНН Filtration system and cleaning method for inlet gas of gas turbine
RU2675917C2 (en) * 2014-05-27 2018-12-25 Торстен ХЕРРМАНН Filtration system and method of cleaning incoming air of gas turbine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2491114C2 (en) * 2009-04-02 2013-08-27 В.Л. Горе Унд Ассошиэйтс Гмбх Cassette filter, filtration device and gas turbine with such cassette filter
RU2636705C2 (en) * 2013-06-04 2017-11-27 Торстен ХЕРРМАНН Filtration system and cleaning method for inlet gas of gas turbine
RU2675917C2 (en) * 2014-05-27 2018-12-25 Торстен ХЕРРМАНН Filtration system and method of cleaning incoming air of gas turbine
RU171602U1 (en) * 2017-01-12 2017-06-07 Акционерное общество "СовПлим" Air filtration device

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Effective date: 20120822