CN111569551B - Self-cleaning air inlet filtering mechanism without stopping filtering for cable tunnel and decontamination method thereof - Google Patents
Self-cleaning air inlet filtering mechanism without stopping filtering for cable tunnel and decontamination method thereof Download PDFInfo
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- CN111569551B CN111569551B CN202010588752.XA CN202010588752A CN111569551B CN 111569551 B CN111569551 B CN 111569551B CN 202010588752 A CN202010588752 A CN 202010588752A CN 111569551 B CN111569551 B CN 111569551B
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- 238000001914 filtration Methods 0.000 title claims abstract description 38
- 238000004140 cleaning Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 238000005202 decontamination Methods 0.000 title claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 62
- 230000002441 reversible effect Effects 0.000 claims abstract description 18
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 46
- 239000010865 sewage Substances 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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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
- B01D46/18—Particle separators, e.g. dust precipitators, using filtering belts
- B01D46/20—Particle separators, e.g. dust precipitators, using filtering belts the belts combined with drums
-
- 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
- B01D46/18—Particle separators, e.g. dust precipitators, using filtering belts
- B01D46/22—Particle separators, e.g. dust precipitators, using filtering belts the belts travelling during filtering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a self-cleaning non-stop filtering air inlet filtering mechanism for a cable tunnel, wherein a square box body is connected in series on an air inlet channel through a flange mounting structure, an upper filter screen roller and an upper air blocking roller are arranged in the square box body above the air inlet channel, and a lower filter screen roller and a lower air blocking roller are arranged in the square box body below the air inlet channel; a filter screen is wound between the upper filter screen roller and the lower filter screen roller; the upper filter screen roller is in compressed fit with the upper air blocking roller, and the lower filter screen roller is in compressed fit with the lower air blocking roller; one end of the central shaft of the upper filter screen roller or the lower filter screen roller extends out of the square box body and is in transmission connection with a shaft of a forward and reverse rotating motor through a coupler; a filter screen decontamination device used for passively cleaning the filter screen in the rotation of the filter screen is arranged in the square box body along the left and right directions. The invention can provide clean air supply for the cable tunnel, can clean the filter screen without stopping air inlet for a long time under unattended operation, keeps the filter screen clean for a long time, and does not reduce the filtering performance of the filter screen under unattended operation.
Description
Technical Field
The invention relates to a cable tunnel safety technology.
Background
The application of electrical energy has penetrated every corner of modern society, from every household to every factory, from industrial production to agricultural production to modern services, and is not supported by electricity in all respects.
The cable tunnel refers to a tunnel for laying a cable. The advantages of cable tunnels are many, the most obvious of which is that it is a one-time investment construction, and there are many cable supports in the tunnel, and after the tunnel is built, it only needs to check on time, and does not need to propose new cable plan to the relevant departments.
The number of cables in the cable tunnel is large, and once the cable tunnel has a problem, the influence surface is large, so that the economic loss which is difficult to predict is caused; therefore, it is necessary to ensure that the cable tunnel is always in a safe state. The main safety problem of cable tunnels is fire; the cable tunnel is in fire due to the cable catching fire. In order to prevent the cable from catching fire, workers need to frequently patrol the cable tunnel, check the heating condition of the cables at various positions, and timely perform investigation and treatment when the cables are found to be overheated, so that a large maintenance workload is brought to the cable tunnel, and when the cables are suddenly overloaded and the heating amount is increased, the workers cannot ensure that the cable is patrolled right to find problems.
In addition to the cables, electrical components are also placed in the cable tunnel. If the cable tunnel is dusty, there is a risk of temperature increase or even short circuits. Most unattended operation of cable tunnel, if can design long-time unattended operation also can guarantee the ventilation system of the interior air cleanliness factor of cable tunnel as far as possible, will improve cable tunnel's security. The filter screen needs clean after using a period of time, and current filter mechanism all need break off the filtration process when clean filter screen, just can make the filter screen put into use again behind the clean filter screen, and this one side has increased personnel's work, and on the other hand makes filter mechanism can not long-time automatic operation.
Disclosure of Invention
The invention aims to provide an air inlet filtering mechanism for a cable tunnel ventilation system, which has good filtering effect, can automatically clean a filter screen, does not need to stop a filtering process when cleaning the filter screen, and meets the requirement of the cable tunnel on the current situation that personnel do not need to watch the cable tunnel daily.
In order to achieve the purpose, the invention provides a self-cleaning intake air filtering mechanism without stopping filtering for a cable tunnel, which is used for an intake air channel of the cable tunnel, wherein a square box body is installed on the intake air channel in series through a flange installation structure, and the square box body is communicated with the intake air channel;
an upper filter screen roller and an upper air blocking roller are arranged in the square box body above the air inlet duct, and a lower filter screen roller and a lower air blocking roller are arranged in the square box body below the air inlet duct; the upper filter screen roller, the upper air blocking roller, the lower filter screen roller and the lower air blocking roller are positioned on the same plane vertical to the air inlet duct;
the air inlet direction in the air inlet duct is taken as the forward direction, and the horizontal direction vertical to the air inlet direction is taken as the left-right direction;
a filter screen is wound between the upper filter screen roller and the lower filter screen roller, the filter screen extends out of the air inlet duct in the upper, lower, left and right directions, and the filter screen is adjacent to the inner wall of the square box body in the left and right directions;
the central shafts of the upper filter screen roller, the upper air blocking roller, the lower filter screen roller and the lower air blocking roller are all arranged on the left side wall and the right side wall of the square box body; the upper filter screen roller is in compressed fit with the upper air blocking roller, and the lower filter screen roller is in compressed fit with the lower air blocking roller; a gap is formed between the upper filter screen roller and the top wall of the square box body, and the gap is less than or equal to 3 mm; a gap is formed between the lower filter screen roller and the bottom wall of the square box body, and the gap is less than or equal to 3 mm;
one end of the central shaft of the upper filter screen roller or one end of the central shaft of the lower filter screen roller extends out of the square box body and is in transmission connection with a shaft of a forward and reverse rotating motor through a coupler;
the air inlet duct extends into the square box body along the front-back direction, the air inlet duct at the rear side of the square box body extends forwards to be adjacent to the filter screen, and the air inlet duct at the front side of the square box body extends backwards to be adjacent to the filter screen;
a filter screen decontamination device for passively cleaning the filter screen in the rotation of the filter screen is arranged in the square box body along the left and right directions, and the filter screen decontamination device is positioned below the air inlet duct and above the lower filter screen roller;
the bottom walls of the square box bodies on the front side and the rear side of the filter screen dirt removing device are symmetrically provided with dirt discharging structures; the sewage outlet structure comprises a sewage dropping groove formed by downwards sinking the bottom wall of the square box body, the vertical cross section of the sewage dropping groove is arc-shaped, the lowest part of the sewage dropping groove is downwards connected with a sewage discharge pipe, and a sewage discharge valve is arranged on the sewage discharge pipe; the side wall of the box body at the sewage dropping groove is provided with a vertically arranged transparent observation window.
The flange mounting structure comprises an air duct flange plate which is arranged on the air inlet duct in a radial protruding mode and box body flange plates which are arranged on two sides of the square box body in a radial protruding mode, and the number of the air duct flange plates is two along the length direction of the air inlet duct at intervals;
the box flange plate and the air duct flange plate are in one-to-one correspondence, the rubber pads are arranged between the box flange plate and the air duct flange plate, the box flange plate and the air duct flange plate are fixedly connected through fastening bolts penetrating through the box flange plate, the rubber pads and the air duct flange plate, and a plurality of fastening bolts are uniformly arranged along the circumferential direction of the box flange plate and the air duct flange plate.
The upper filter screen roller and the lower filter screen roller are both provided with mounting grooves for winding the filter screen in a radially recessed manner, and the filter screen is wound between the mounting grooves of the upper filter screen roller and the mounting grooves of the lower filter screen roller.
The filter screen dirt removing device comprises a partition plate positioned right above the axis of the lower filter screen roller, and the partition plate extends along the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body; the partition board is upwards fixedly connected with an upper limiting plate which is horizontally arranged, the partition board is downwards fixedly connected with a lower limiting plate which is horizontally arranged, and the upper limiting plate and the lower limiting plate extend along the left-right direction and are fixedly connected with the left side wall and the right side wall of the square box body;
the filter screens at the rear sides of the upper filter screen roller and the lower filter screen roller form the rear half width of the filter screen, and the filter screens at the front sides of the upper filter screen roller and the lower filter screen roller form the front half width of the filter screen;
a rear jacking block is arranged behind the rear half of the filter screen, a rear sliding block is arranged in front of the rear half of the filter screen, and the rear jacking block extends in the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body;
the front end of the rear sliding block is positioned between the upper limiting plate and the lower limiting plate and is in sliding fit with the upper limiting plate and the lower limiting plate, and the rear sliding block extends in the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body; a rear spring is arranged between the rear sliding block and the partition plate in a pressing manner, and the rear spring pushes the rear sliding block to press the rear half width of the filter screen to the rear top pressing block; the front side surface of the rear top pressing block and the rear side surface of the rear sliding block are both wear-resistant rubber surfaces; the upper surface of the rear top pressing block and the upper surface of the rear sliding block are positioned in the same inclined plane with high front and low rear;
a front jacking pressing block is arranged in front of the front half of the filter screen, a front sliding block is arranged behind the front half of the filter screen, and the front jacking pressing block extends along the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body;
the rear end of the front sliding block is positioned between the upper limit plate and the lower limit plate and is in sliding fit with the upper limit plate and the lower limit plate, and the front sliding block extends along the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body; a front spring is pressed between the front sliding block and the partition plate, and pushes the front sliding block to press the front half width of the filter screen on the front top pressing block; the rear side surface of the front top pressing block and the front side surface of the front sliding block are both wear-resistant rubber surfaces; the upper surface of the front top pressing block and the upper surface of the front sliding block are positioned in the same inclined plane with high back and low front;
the rotation direction of the filter screen in normal operation is that the back half of the filter screen moves from top to bottom, and the upper surface of the back top pressing block and the upper surface of the front top pressing block are both smooth surfaces.
The square box bodies at the upper filter screen roller and the upper air blocking roller are respectively provided with an upper groove in a horizontally protruding mode along the left and right directions, and the upper grooves are part of the square box bodies;
the upper filter screen roller and the upper air blocking roller extend into the upper groove along the left-right direction; the distance between the upper filter screen roller and the lower side wall of the upper groove is less than or equal to 3 mm, the central shafts of the upper filter screen roller and the upper air blocking roller are both arranged on the groove bottom of the upper groove through bearings, and the distance between the upper filter screen roller and the upper air blocking roller and the groove bottoms of the upper grooves on the left side and the right side is less than or equal to 3 mm;
the square box bodies at the lower filter screen roller and the lower air blocking roller are respectively provided with a lower groove in a horizontally protruding mode along the left and right directions, and the lower grooves are part of the square box bodies;
the lower filter screen roller and the lower air blocking roller extend into the lower groove along the left-right direction; the distance between the lower filter screen roller and the upper side wall of the lower groove is less than or equal to 3 mm, the central shafts of the lower filter screen roller and the lower air blocking roller are both mounted on the groove bottom of the lower groove through bearings, and the distance between the lower filter screen roller and the lower air blocking roller and the groove bottoms of the lower grooves on the left side and the right side is less than or equal to 3 mm.
When the filter screen normally operates, the filter screen rotates forwards, and the rotation direction of the filter screen is the back half of the filter screen to operate from top to bottom; when the filter screen is attached with dirt which can not be separated in the forward rotation process, the forward and reverse rotation motor is controlled to drive the filter screen to alternatively perform forward rotation and reverse rotation, so that the filter screen alternatively passes through the filter screen dirt removing device in the forward direction and the reverse direction.
The invention has the following advantages:
the invention can provide clean air supply for the cable tunnel, can clean the filter screen without stopping air inlet for a long time under unattended operation, keeps the filter screen clean for a long time, and does not reduce the filtering performance of the filter screen under unattended operation.
The filter screen that the air inlet duct is just right is the most concentrated place of the air volume of crossing, and the filter screen all extends to outside the air inlet duct in upper and lower left and right directions for the filter screen can carry out effective filtration to the air inlet. The filter screen all is adjacent with the inner wall of square box in the left and right sides for the difficult air leakage of filter screen left and right sides. Gaps between the left side and the right side of the filter screen and the inner wall of the box body are not aligned to the air inlet pipe, and the second gap is small, so that most of dirt cannot flow forwards through the gaps.
The upper air blocking roller is in compression joint with the upper filter screen roller, so that a gap between the upper air blocking roller and the upper filter screen roller is eliminated, and dirt cannot leak out at the gap. Go up the fender gas cylinder and make the clearance between cylinder and the square box roof keep away from the filter screen more, reduce the possibility that filth spills by this department clearance. Through transparent observation window, the staff can observe the long-pending dirty condition to open the blowoff valve blowdown in good time.
The setting of mounting groove can prevent that the filter screen from taking place the skew in its left and right sides position of work, avoids the filter screen to scrape the lateral wall of square box in the rotation.
The filter screen decontamination device has a simple structure, is arranged above the lower filter screen roller and forms a passive decontamination structure.
When the filter screen rotates, the first half of the filter screen moves downwards and passes through the matching surfaces of the rear top pressing block and the rear sliding block, and most of dirt on the filter screen is pressed and pressed by the upward extrusion force of the rear top pressing block and the rear sliding block in a matched mode, so that the dirt falls on the upper surface of the rear top pressing block. Under the action of gravity, the sewage slides downwards along the upper surface of the smooth rear jacking block to the sewage dropping groove, and a worker only needs to maintain regularly, namely the sewage discharge valve is opened periodically (for example, for one month), and accumulated sewage is discharged. The upper surface of the front top pressing block is also a smooth surface, which is used for cleaning dirt which is difficult to clean when the filter screen rotates reversely. When the filter screen is rotated reversely, the stress condition of the dirt on the dirt removing device of the filter screen is opposite to that of the dirt when the dirt is rotated forwardly, so that most of the dirt which cannot be removed when the dirt is rotated forwardly can be removed by rotating the filter screen forwardly and reversely alternately.
When the front half of the filter screen moves upwards and passes through the matching surfaces of the front top pressing block and the front sliding block, dirt (if any) on the filter screen is pressed downwards by the front top pressing block and the front sliding block which are in press fit, so that the dirt falls into the dirt falling groove. Because most of dirt is cleaned at the rear half part of the filter screen, the amount of the dirt cleaned by the front top pressing block and the front sliding block is small.
If the rear half of the filter screen runs from bottom to top, the dirt can approach a circle along with the rotation of the filter screen and can meet the filter screen dirt removing device, and the dirt firstly rises along with the filter screen in the process, so that more time and space are provided for dirt diffusion. The rear half part of the filter screen runs from top to bottom, the dirt inevitably meets the filter screen dirt removing device when the dirt rotates for the longest time along with the filter screen and is not lifted upwards but falls downwards, the dirt is more easily removed in a centralized way rather than being diffused, and therefore the dirt removing process is more efficient.
The air inlet duct is adjacent to the filter screen, so that most of air quantity passes through the filter screen in the area within the vertical cross section of the air inlet duct, and only a small amount of air quantity overflows into the square box body outside the air inlet duct.
In the invention, gaps at all positions are smaller than 3 mm, and even if a small part of air quantity passes through the gaps, the gaps can also play a certain role in filtering the inlet air actually. In each gap, the gap between the upper air blocking roller and the lower air blocking roller and the top wall and the bottom wall of the square box body is a dynamic gap, the size of the gap is unchanged, but the rollers at the gap rotate ceaselessly; the rest gaps are static gaps. Even if each static clearance is blocked by dirt, the air passing through the filter screen from the area within the cross section of the air inlet duct is not influenced. The dynamic gap is not blocked by dirt because the roller rotates continuously.
In the invention, most of the air quantity can only pass through the filter screen in the area within the vertical section of the air inlet duct, and only a small amount of air quantity overflows and diffuses into the square box body outside the air inlet duct. Because the air leakage rate at the peripheral gap of the filter screen is very small, dirt is difficult to pass through the edge gap far away from the air inlet duct, so that the dirt overflows into the air volume in the square box body, most of the dirt passes through the filter screen outside the vertical section of the air inlet duct and is filtered, and the filtering effect is ensured.
According to the invention, the filter screen can rotate actively, and in the rotating process of the filter screen, the filter screen dirt removing device can automatically remove dirt on the filter screen, so that the filter screen can be automatically cleaned without stopping the filtering process, the filter screen is continuously cleaned while filtering, the cleanliness of the filter screen is maintained, the filtering process is not required to be stopped for cleaning the filter screen in a special time, manual intervention is not required for cleaning the filter screen, the working efficiency is improved, and the requirement of the cable tunnel on the current situation that personnel are not required to keep watch is met.
The arrangement of the upper groove and the lower groove ensures that gaps between the inner walls of the square box bodies and the rollers at the upper filter screen roller, the upper air blocking roller, the lower filter screen roller and the lower air blocking roller are bent relative to gaps between the filter screen and the square box bodies, so that the flow resistance of air flow reaching the gaps between the rollers and the inner walls of the square box bodies (the bottoms of the upper groove and the lower groove) is increased, and the probability of passing dirt such as dust is reduced. And the distances between each roller and the bottoms of the upper groove and the lower groove are smaller, so that dirt is not easy to pass through the gaps.
The stress direction and the specific stress point of the dirt at the filter screen dirt removing device are changed by changing the forward rotation and the reverse rotation of the filter screen (if the stress point of the rear half width of the filter screen is positioned at the upper end of the rear top pressing block during the forward rotation, and the stress point of the rear half width of the filter screen is positioned at the lower end of the rear top pressing block during the reverse rotation), so that the dirt is removed more thoroughly.
Drawings
FIG. 1 is a schematic cross-sectional view of a self-cleaning non-stop-filtering intake air filtering mechanism for a cable tunnel according to the present invention;
FIG. 2 is a schematic structural diagram of a self-cleaning air intake filtering mechanism without stopping filtering for a cable tunnel according to the present invention, wherein the side walls of the square filter screens at and below the lower filter screen roller in FIG. 2 are transparent observation windows;
FIG. 3 is a view from A-A of FIG. 1;
FIG. 4 is a schematic view of the construction of the upper screen cylinder; the structure of the lower filter screen roller is the same as that of the upper filter screen roller;
fig. 5 is an enlarged view of the screen wiper of fig. 1.
Detailed Description
As shown in fig. 1 to 5, the present invention provides an intake air filtering mechanism for a cable tunnel, which is used for an intake air duct 20 of the cable tunnel, wherein a square box 26 is installed on the intake air duct 20 in series through a flange installation structure, and the square box 26 is communicated with the intake air duct 20;
an upper filter screen roller 27 and an upper air blocking roller 28 are arranged in the square box body above the air inlet duct 20, and a lower filter screen roller 29 and a lower air blocking roller 30 are arranged in the square box body below the air inlet duct 20; the upper filter screen roller 27, the upper air blocking roller 28, the lower filter screen roller 29 and the lower air blocking roller 30 are positioned on the same plane vertical to the air inlet duct 20;
the air inlet direction in the air inlet duct 20 is taken as the forward direction, and the horizontal direction perpendicular to the air inlet direction is taken as the left-right direction;
a filter screen 31 is wound between the upper filter screen roller 27 and the lower filter screen roller 29, the filter screen 31 extends out of the air inlet duct 20 in the up, down, left and right directions, and the filter screen 31 is adjacent to the inner wall of the square box 26 in the left and right directions;
the central shafts of the upper filter screen roller 27, the upper air blocking roller 28, the lower filter screen roller 29 and the lower air blocking roller 30 are all arranged on the left and right side walls of the square box body 26; the upper filter screen roller 27 is in pressing fit with the upper air blocking roller 28, and the lower filter screen roller 29 is in pressing fit with the lower air blocking roller 30; a gap is formed between the upper filter screen roller 27 and the top wall of the square box body 26, and the gap is less than or equal to 3 mm; a gap is formed between the lower filter screen roller 29 and the bottom wall of the square box body 26, and the gap is less than or equal to 3 mm;
one end of the central shaft of the upper filter screen roller 27 or one end of the central shaft of the lower filter screen roller 29 extends out of the square box body 26 and is in transmission connection with the shaft of a forward and reverse rotation motor 32 through a coupler; the central shaft of each roller, including the central shaft extending out of the square box 26, is rotatably connected with the side wall of the square box 26 through a bearing, the bearing and the coupling are conventional parts, which are not shown in the figure
The air inlet duct 20 extends into the square box 26 along the front-back direction, the air inlet duct 20 at the rear side of the square box 26 extends forwards to be adjacent to the filter screen 31, and the air inlet duct 20 at the front side of the square box 26 extends backwards to be adjacent to the filter screen 31; the clearance between the air inlet duct 20 and the filter screen 31 is less than or equal to 3 mm. The air inlet duct 20 is adjacent to the filter screen 31, so that most of the air quantity passes through the filter screen 31 in the area within the vertical section of the air inlet duct, and only a small amount of air quantity overflows into the square box 26 outside the air inlet duct.
A filter screen decontamination device 33 for passively cleaning the filter screen 31 in the rotation of the filter screen 31 is arranged in the square box 26 along the left-right direction, and the filter screen decontamination device 33 is positioned below the air inlet duct 20 and above the lower filter screen roller 29;
the bottom walls of the square box bodies 26 at the front side and the rear side of the filter screen dirt removing device 33 are symmetrically provided with dirt discharging structures; the sewage outlet structure comprises a sewage dropping groove 34 formed by downwards sinking the bottom wall of the square box body 26, the vertical section of the sewage dropping groove 34 is arc-shaped, the lowest part of the sewage dropping groove 34 is downwards connected with a sewage discharge pipe 35, and the sewage discharge pipe 35 is provided with a sewage discharge valve 36; the side wall of the box body at the sewage dropping groove 34 is provided with a vertically arranged transparent observation window. The transparent viewing window is of conventional construction and is not shown.
The filter screen 31 directly facing the air inlet duct 20 is the most concentrated part of the air passing amount, and the filter screen 31 extends to the outside of the air inlet duct 20 in the up-down left-right direction, so that the filter screen 31 can effectively filter the inlet air. The filter screen 31 is adjacent to the inner wall of the square box 26 in the left and right directions, so that air is not easy to leak from the left and right sides of the filter screen 31. The gaps between the left and right sides of the filter screen 31 and the inner wall of the box body are not aligned with the air inlet pipe firstly, and the second gap is smaller, so that most of dirt cannot flow forwards through the gaps.
The upper air-blocking cylinder 28 is pressed against the upper screen cylinder 27, eliminating the gap between the upper air-blocking cylinder 28 and the upper screen cylinder 27, so that dirt does not leak out there. The upper air-blocking drum 28 keeps the gap between the drum and the top wall of the square box 26 further away from the screen 31, reducing the possibility of dirt escaping through the gap.
Through transparent observation window, the staff can observe the long-pending dirty condition to open the blowdown valve 36 blowdown in good time.
The flange mounting structure comprises an air duct flange 37 which is arranged on the air inlet duct 20 in a radial protruding mode and box body flanges 38 which are arranged on two sides of the square box body in a radial protruding mode, and two air duct flanges 37 are arranged at intervals along the length direction of the air inlet duct 20;
the box flange 38 corresponds to the air duct flange 37 one by one, a rubber pad 39 is arranged between the box flange 38 and the air duct flange 37, the box flange 38 and the air duct flange 37 are fixedly connected through a fastening bolt 40 penetrating through the box flange 38, the rubber pad 39 and the air duct flange 37, and a plurality of fastening bolts 40 are uniformly arranged along the circumferential direction of the box flange 38 and the air duct flange 37.
Go up all radially sunken being equipped with on filter screen cylinder 27 and the lower filter screen cylinder 29 and being used for around the mounting groove 41 who establishes filter screen 31, filter screen 31 is around locating between mounting groove 41 of last filter screen cylinder 27 and the mounting groove 41 of lower filter screen cylinder 29.
The arrangement of the mounting groove 41 can prevent the filter screen 31 from deviating at the left and right positions in work, and prevent the filter screen 31 from scraping the side wall of the square box 26 in rotation.
The filter screen dirt removing device 33 comprises a partition plate 42 positioned right above the axis of the lower filter screen roller 29, and the partition plate 42 extends along the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box 26; the partition plate 42 is upwards fixedly connected with an upper limit plate 43 which is horizontally arranged, the partition plate 42 is downwards fixedly connected with a lower limit plate 44 which is horizontally arranged, and the upper limit plate 43 and the lower limit plate 44 extend along the left-right direction and are fixedly connected with the left side wall and the right side wall of the square box body 26;
the screens 31 on the rear sides of the upper screen cylinder 27 and the lower screen cylinder 29 form a rear half 45 of the screen 31, and the screens 31 on the front sides of the upper screen cylinder 27 and the lower screen cylinder 29 form a front half 46 of the screen 31;
a rear jacking block 47 is arranged behind the rear half width 45 of the filter screen, a rear sliding block 48 is arranged in front of the rear half width 45 of the filter screen, and the rear jacking block 47 extends in the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body 26;
the front end of the rear sliding block 48 is positioned between the upper limiting plate 43 and the lower limiting plate 44 and is in sliding fit with the upper limiting plate 43 and the lower limiting plate 44, and the rear sliding block 48 extends in the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body 26; a rear spring 49 is pressed between the rear sliding block 48 and the rear side wall of the partition plate 42, and the rear spring 49 pushes the rear sliding block 48 to press the rear half width 45 of the filter screen 31 to the rear top pressing block 47; the front side surface of the rear jacking block 47 and the rear side surface of the rear sliding block 48 are both wear-resistant rubber surfaces; the upper surface of the rear jacking block 47 and the upper surface of the rear sliding block 48 are positioned in the same inclined plane with high front and low rear;
a front top pressing block 50 is arranged in front of the front half 46 of the filter screen, a front sliding block 51 is arranged behind the front half 46 of the filter screen, and the front top pressing block 50 extends in the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body 26;
the rear end of the front slider 51 is positioned between the upper limiting plate 43 and the lower limiting plate 44 and is in sliding fit with the upper limiting plate 43 and the lower limiting plate 44, and the front slider 51 extends in the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body 26; a front spring 52 is pressed between the front sliding block 51 and the front side wall of the partition plate 42, and the front spring 52 pushes the front sliding block 51 to press the front half 46 of the filter screen 31 against the front top pressing block 50; the rear side surface of the front top press block 50 and the front side surface of the front slide block 51 are both wear-resistant rubber surfaces; the upper surface of the front top pressing block 50 and the upper surface of the front sliding block 51 are positioned in the same inclined plane with high back and low front;
the rotation direction of the filter screen 31 in normal operation is that the rear half 45 of the filter screen 31 runs from top to bottom, and the upper surfaces of the rear top pressing block 47 and the front top pressing block 50 are both smooth surfaces.
The matching surfaces of the rear top pressing block 47 and the rear sliding block 48 and the rear half width 45 of the filter screen 31 are positioned on the same vertical plane, and the matching surfaces of the front top pressing block 50 and the front sliding block 51 and the front half width 46 of the filter screen 31 are positioned on the same vertical plane.
The screen pollution removing device 33 has a simple structure, is disposed above the lower screen roller 29, and forms a passive pollution removing structure. The upper surface of the front top press block 50 is also a smooth surface in order to reverse the strainer 31 and remove dirt that is difficult to remove when the strainer 31 is rotated forward. When the filter screen 31 is rotated reversely, the force applied to the filter screen dirt removing device 33 by dirt is opposite to that applied when the filter screen is rotated forwardly, so that most of the dirt which cannot be removed when the filter screen 31 is rotated forwardly can be removed by rotating the filter screen 31 forwardly and reversely alternately.
If the rear half 45 of the screen 31 runs from bottom to top, the dirt will be able to meet the screen cleaner 33 only after nearly one rotation of the screen 31, in which process the dirt will first rise with the screen 31, providing more time and space for the dirt to spread. In the invention, the rear half 45 of the filter screen 31 runs from top to bottom, the dirt is inevitably met by the filter screen decontamination device 33 when the longest rotation of the filter screen 31 is less than half a circle, and the dirt is not lifted upwards but falls downwards, so that the dirt is more easily removed in a centralized way rather than being diffused, thereby ensuring that the decontamination process is more efficient.
In the invention, most of the air quantity can only pass through the filter screen 31 in the area within the vertical section of the air inlet duct, and only a small amount of air quantity overflows into the square box body 26 outside the air inlet duct. Because the air leakage rate at the peripheral gap of the filter screen is very small, the dirt is difficult to pass through the edge gap far away from the air inlet duct 20, so that the dirt is overflowed into the air volume in the square box body 26, most of the air passes through the filter screen 31 outside the vertical section of the air inlet duct and is filtered, and the filtering effect is ensured.
In the invention, the filter screen 31 can actively rotate, and in the rotating process of the filter screen 31, the filter screen decontamination device 33 automatically removes dirt on the filter screen 31, so that the filter screen 31 is automatically cleaned without stopping the filtering process when the filter screen 31 is cleaned, the filter screen 31 is continuously cleaned while filtering, the cleanliness of the filter screen 31 is maintained, the filter screen 31 is not required to be cleaned by stopping the filtering process in special time, the filter screen 31 is cleaned without manual intervention, the working efficiency is improved, and the requirement of the cable tunnel on the current situation that personnel are not required to keep watch every day is met. The invention can provide clean air supply for the cable tunnel, can clean the filter screen without stopping air inlet for a long time under unattended operation, keeps the filter screen clean for a long time, and does not reduce the filtering performance of the filter screen under unattended operation.
The square box 26 at the upper filter screen roller 27 and the upper air blocking roller 28 is respectively provided with an upper groove 53 in a horizontal protruding mode along the left and right directions, and the upper groove 53 is a part of the square box 26;
the upper filter screen roller 27 and the upper air blocking roller 28 extend into the upper groove 53 along the left-right direction; the distance between the upper filter screen roller 27 and the lower side wall of the upper groove 53 is less than or equal to 3 mm, the central shafts of the upper filter screen roller 27 and the upper air blocking roller 28 are both arranged on the groove bottom of the upper groove 53 through bearings, and the distance between the upper filter screen roller 27 and the upper air blocking roller 28 and the groove bottoms of the upper grooves 53 on the left side and the right side is less than or equal to 3 mm;
the square box 26 at the lower filter screen roller 29 and the lower air blocking roller 30 is horizontally provided with a lower groove 54 in a protruding manner along the left and right direction, and the lower groove 54 is a part of the square box 26;
the lower screen roller 29 and the lower air blocking roller 30 both extend into the lower groove 54 in the left-right direction; the distance between the lower filter screen roller 29 and the upper side wall of the lower groove 54 is less than or equal to 3 mm, the central shafts of the lower filter screen roller 29 and the lower air blocking roller 30 are both mounted on the groove bottom of the lower groove 54 through bearings, and the distance between the lower filter screen roller 29 and the lower air blocking roller 30 and the groove bottoms of the lower grooves 54 on the left side and the right side is less than or equal to 3 mm.
The upper groove 53 and the lower groove 54 are arranged, so that the gaps between the inner walls of the square box 26 and the rollers at the positions of the upper filter screen roller 27, the upper air blocking roller 28, the lower filter screen roller 29 and the lower air blocking roller 30 are bent relative to the gaps between the filter screen 31 and the square box 26, the flow resistance of airflow reaching the gaps between the rollers and the inner walls of the square box 26 (the bottoms of the upper groove 53 and the lower groove 54) is increased, and the probability of passing dirt such as dust is reduced. In addition, the distance between each roller and the bottom of the upper groove 53 and the bottom of the lower groove 54 is small, so that dirt cannot easily pass through the gaps.
When the filter screen 31 normally runs, the filter screen 31 rotates forwards, and the rotation direction of the filter screen 31 is the back half width 45 of the filter screen 31 to run from top to bottom; when dirt which cannot be separated is attached to the filter screen 31 in the forward rotation process of the filter screen 31, the forward and reverse rotation motor 32 is controlled to drive the filter screen 31 to alternately perform forward rotation and reverse rotation, so that the filter screen 31 alternately passes through the filter screen dirt removing device 33 in the forward direction and the reverse direction.
By changing the forward rotation and the reverse rotation of the filter screen 31, the force direction and the specific force point of the dirt on the filter screen dirt removing device 33 are changed (for example, the force point of the rear half width 45 of the filter screen 31 is positioned at the upper end of the rear jacking block 47 in the forward rotation, and the force point of the rear half width 45 of the filter screen 31 is positioned at the lower end of the rear jacking block 47 in the reverse rotation), so that the dirt is more thoroughly removed.
The cable tunnel air intake filter mechanism is mounted on the cable tunnel air intake duct 20 when in use. In the process of cable tunnel air intake, the filter screen 31 can rotate continuously and slowly, also can rotate intermittently, the interval time of rotation is preferably 5-10 minutes, and the filter screen 31 can not rotate too frequently, and can not accumulate more dirt on the filter screen 31. The screen 31 is driven by a counter-rotating motor 32. The upper filter screen roller 27 and the lower filter screen roller 29 enable the upper air blocking roller 28 and the lower air blocking roller 30 to passively rotate under the action of the pressing force in the rotating process, the upper end and the lower end of the filter screen are guaranteed to be in a sealing state while the filter screen rotates, the distance between the filter screen and the gaps between the upper end and the lower end of the roller and between the upper end and the lower end of the square box body is prolonged, the resistance of air reaching the gaps between the upper end and the lower end is increased, and more air volume is enabled to pass through the filter screen from the air inlet channel.
When the screen 31 rotates, the rear half 45 of the screen 31 runs from top to bottom, and the front half 46 of the screen 31 runs from bottom to top. When the filter screen 31 passes through the matching surfaces of the rear top pressing block 47 and the rear sliding block 48, most of dirt on the filter screen 31 is pressed upwards by the rear top pressing block 47 and the rear sliding block 48 which are tightly pressed and matched, so that the dirt falls on the upper surface of the rear top pressing block 47. Under the action of gravity, the dirt slides down to the dirt dropping groove 34 along the upper surface of the smooth rear top pressure block 47, and a worker only needs to perform regular maintenance, namely periodically (for example, one month) opens the dirt discharging valve 36 to discharge the accumulated dirt. As the front half 46 of the screen 31 moves upward and passes the mating surfaces of the top press 50 and the front slide 51, dirt on the screen 31 (if any) is pressed downward by the press-fit top press 50 and the front slide 51 to fall into the dirt drop chute 34. Since most of the filth is cleaned at the rear half 45 of the screen 31, the amount of filth cleaned at the front top press block 50 and the front slider 51 is small.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (6)
1. Cable tunnel is with self-cleaning air inlet filtering mechanism who does not stop filtering for air inlet duct, its characterized in that:
the air inlet duct is provided with a square box body for preventing air leakage and dust leakage in series through a flange mounting structure, and the square box body is communicated with the air inlet duct;
an upper filter screen roller and an upper air blocking roller are arranged in the square box body above the air inlet duct, and a lower filter screen roller and a lower air blocking roller are arranged in the square box body below the air inlet duct; the upper filter screen roller, the upper air blocking roller, the lower filter screen roller and the lower air blocking roller are positioned on the same plane vertical to the air inlet duct;
the air inlet direction in the air inlet duct is taken as the forward direction, and the horizontal direction vertical to the air inlet direction is taken as the left-right direction;
a filter screen is wound between the upper filter screen roller and the lower filter screen roller, the filter screen extends out of the air inlet duct in the upper, lower, left and right directions, and the filter screen is adjacent to the inner wall of the square box body in the left and right directions;
the central shafts of the upper filter screen roller, the upper air blocking roller, the lower filter screen roller and the lower air blocking roller are all arranged on the left side wall and the right side wall of the square box body; the upper filter screen roller is in compressed fit with the upper air blocking roller, and the lower filter screen roller is in compressed fit with the lower air blocking roller; a gap is formed between the upper filter screen roller and the top wall of the square box body, and the gap is less than or equal to 3 mm; a gap is formed between the lower filter screen roller and the bottom wall of the square box body, and the gap is less than or equal to 3 mm;
one end of the central shaft of the upper filter screen roller or one end of the central shaft of the lower filter screen roller extends out of the square box body and is in transmission connection with a shaft of a forward and reverse rotating motor through a coupler;
the air inlet duct extends into the square box body along the front-back direction, the air inlet duct at the rear side of the square box body extends forwards to be adjacent to the filter screen, and the air inlet duct at the front side of the square box body extends backwards to be adjacent to the filter screen; the clearance between the air inlet duct and the filter screen is less than or equal to 3 mm;
a filter screen decontamination device for passively cleaning the filter screen in the rotation of the filter screen is arranged in the square box body along the left and right directions, and the filter screen decontamination device is positioned below the air inlet duct and above the lower filter screen roller;
the bottom walls of the square box bodies on the front side and the rear side of the filter screen dirt removing device are symmetrically provided with dirt discharging structures; the sewage outlet structure comprises a sewage dropping groove formed by downwards sinking the bottom wall of the square box body, the vertical cross section of the sewage dropping groove is arc-shaped, the lowest part of the sewage dropping groove is downwards connected with a sewage discharge pipe, and a sewage discharge valve is arranged on the sewage discharge pipe; the side wall of the box body at the sewage dropping groove is provided with a vertically arranged transparent observation window.
2. The cable tunnel of claim 1 is with self-cleaning air intake filter mechanism that does not stop filtering, characterized in that: the flange mounting structure comprises an air duct flange plate which is arranged on the air inlet duct in a radial protruding mode and box body flange plates which are arranged on two sides of the square box body in a radial protruding mode, and the number of the air duct flange plates is two along the length direction of the air inlet duct at intervals;
the box flange plate and the air duct flange plate are in one-to-one correspondence, the rubber pads are arranged between the box flange plate and the air duct flange plate, the box flange plate and the air duct flange plate are fixedly connected through fastening bolts penetrating through the box flange plate, the rubber pads and the air duct flange plate, and a plurality of fastening bolts are uniformly arranged along the circumferential direction of the box flange plate and the air duct flange plate.
3. The cable tunnel of claim 1 is with self-cleaning air intake filter mechanism that does not stop filtering, characterized in that: go up filter screen cylinder and be equipped with all radially sunken being used for around the mounting groove of establishing the filter screen down on the filter screen cylinder, the filter screen is around locating between the mounting groove of filter screen cylinder and the mounting groove of filter screen cylinder down.
4. The cable tunnel self-cleaning intake air filtering mechanism without stopping filtering according to any one of claims 1 to 3, wherein: the filter screen dirt removing device comprises a partition plate positioned right above the axis of the lower filter screen roller, and the partition plate extends along the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body; the partition board is upwards fixedly connected with an upper limiting plate which is horizontally arranged, the partition board is downwards fixedly connected with a lower limiting plate which is horizontally arranged, and the upper limiting plate and the lower limiting plate extend along the left-right direction and are fixedly connected with the left side wall and the right side wall of the square box body;
the filter screens at the rear sides of the upper filter screen roller and the lower filter screen roller form the rear half width of the filter screen, and the filter screens at the front sides of the upper filter screen roller and the lower filter screen roller form the front half width of the filter screen;
a rear jacking block is arranged behind the rear half of the filter screen, a rear sliding block is arranged in front of the rear half of the filter screen, and the rear jacking block extends in the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body;
the front end of the rear sliding block is positioned between the upper limiting plate and the lower limiting plate and is in sliding fit with the upper limiting plate and the lower limiting plate, and the rear sliding block extends in the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body; a rear spring is arranged between the rear sliding block and the partition plate in a pressing manner, and the rear spring pushes the rear sliding block to press the rear half width of the filter screen to the rear top pressing block; the front side surface of the rear top pressing block and the rear side surface of the rear sliding block are both wear-resistant rubber surfaces; the upper surface of the rear top pressing block and the upper surface of the rear sliding block are positioned in the same inclined plane with high front and low rear;
a front jacking pressing block is arranged in front of the front half of the filter screen, a front sliding block is arranged behind the front half of the filter screen, and the front jacking pressing block extends along the left-right direction and is fixedly connected with the left side wall and the right side wall of the square box body;
the rear end of the front sliding block is positioned between the upper limit plate and the lower limit plate and is in sliding fit with the upper limit plate and the lower limit plate, and the front sliding block extends along the left-right direction and is in sliding fit with the left side wall and the right side wall of the square box body; a front spring is pressed between the front sliding block and the partition plate, and pushes the front sliding block to press the front half width of the filter screen on the front top pressing block; the rear side surface of the front top pressing block and the front side surface of the front sliding block are both wear-resistant rubber surfaces; the upper surface of the front top pressing block and the upper surface of the front sliding block are positioned in the same inclined plane with high back and low front;
the rotation direction of the filter screen in normal operation is that the back half of the filter screen moves from top to bottom, and the upper surface of the back top pressing block and the upper surface of the front top pressing block are both smooth surfaces.
5. The cable tunnel of claim 4 is with self-cleaning air intake filter mechanism that does not stop filtering, characterized in that: the square box bodies at the upper filter screen roller and the upper air blocking roller are respectively provided with an upper groove in a horizontally protruding mode along the left and right directions, and the upper grooves are part of the square box bodies;
the upper filter screen roller and the upper air blocking roller extend into the upper groove along the left-right direction; the distance between the upper filter screen roller and the lower side wall of the upper groove is less than or equal to 3 mm, the central shafts of the upper filter screen roller and the upper air blocking roller are both arranged on the groove bottom of the upper groove through bearings, and the distance between the upper filter screen roller and the upper air blocking roller and the groove bottoms of the upper grooves on the left side and the right side is less than or equal to 3 mm;
the square box bodies at the lower filter screen roller and the lower air blocking roller are respectively provided with a lower groove in a horizontally protruding mode along the left and right directions, and the lower grooves are part of the square box bodies;
the lower filter screen roller and the lower air blocking roller extend into the lower groove along the left-right direction; the distance between the lower filter screen roller and the upper side wall of the lower groove is less than or equal to 3 mm, the central shafts of the lower filter screen roller and the lower air blocking roller are both mounted on the groove bottom of the lower groove through bearings, and the distance between the lower filter screen roller and the lower air blocking roller and the groove bottoms of the lower grooves on the left side and the right side is less than or equal to 3 mm.
6. The method for decontaminating a self-cleaning air intake filter mechanism without stopping filtration in a cable tunnel according to claim 4, wherein the method comprises the steps of:
when the filter screen normally operates, the filter screen rotates forwards, and the rotation direction of the filter screen is the back half of the filter screen to operate from top to bottom; when the filter screen is attached with dirt which can not be separated in the forward rotation process, the forward and reverse rotation motor is controlled to drive the filter screen to alternatively perform forward rotation and reverse rotation, so that the filter screen alternatively passes through the filter screen dirt removing device in the forward direction and the reverse direction.
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| CN202010588752.XA CN111569551B (en) | 2020-06-24 | 2020-06-24 | Self-cleaning air inlet filtering mechanism without stopping filtering for cable tunnel and decontamination method thereof |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005342595A (en) * | 2004-06-02 | 2005-12-15 | Daikin Ind Ltd | Filter apparatus |
| CN201603501U (en) * | 2010-02-26 | 2010-10-13 | 中铁十七局集团有限公司 | Filtering dust removing device |
| CN204246988U (en) * | 2014-11-26 | 2015-04-08 | 上海禾益净化设备制造有限公司 | A kind of folded form Coiled-curtain-type filter |
| CN104826423A (en) * | 2015-05-19 | 2015-08-12 | 苏州华泰空气过滤器有限公司 | Rolling-up curtain type filter |
| WO2017149557A1 (en) * | 2016-03-04 | 2017-09-08 | Elia Camine | Vacuum filter device and wastewater treatment plant using the same |
| CN206881365U (en) * | 2017-07-05 | 2018-01-16 | 河北慧之源科技服务有限公司 | Dedusting mechanism and integrated fume processing unit |
| CN108731181A (en) * | 2018-06-11 | 2018-11-02 | 郑州梦朵蓝节能设备有限公司 | High-rise Building Energy Saving ventilation equipment, ventilation shaft |
| CN108854292A (en) * | 2018-09-07 | 2018-11-23 | 浙江得亿制氧科技有限公司 | A kind of workshop air purification device |
| CN109621581A (en) * | 2018-12-18 | 2019-04-16 | 李三查 | Reel wire formula easy to clean dust-extraction unit |
| CN110038367A (en) * | 2019-05-27 | 2019-07-23 | 王�锋 | Air purifier and its application, air cleaning system |
| CN209604059U (en) * | 2018-12-26 | 2019-11-08 | 山西宏安翔科技股份有限公司 | A kind of safety of coal mines ventilation equipment |
| CN210145707U (en) * | 2019-05-09 | 2020-03-17 | 苏州诺易新环保科技有限公司 | Industrial waste dust collection system |
| CN110917763A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | Air automatic filtering device for continuously collecting and cleaning flying wadding on line |
-
2020
- 2020-06-24 CN CN202010588752.XA patent/CN111569551B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005342595A (en) * | 2004-06-02 | 2005-12-15 | Daikin Ind Ltd | Filter apparatus |
| CN201603501U (en) * | 2010-02-26 | 2010-10-13 | 中铁十七局集团有限公司 | Filtering dust removing device |
| CN204246988U (en) * | 2014-11-26 | 2015-04-08 | 上海禾益净化设备制造有限公司 | A kind of folded form Coiled-curtain-type filter |
| CN104826423A (en) * | 2015-05-19 | 2015-08-12 | 苏州华泰空气过滤器有限公司 | Rolling-up curtain type filter |
| WO2017149557A1 (en) * | 2016-03-04 | 2017-09-08 | Elia Camine | Vacuum filter device and wastewater treatment plant using the same |
| CN206881365U (en) * | 2017-07-05 | 2018-01-16 | 河北慧之源科技服务有限公司 | Dedusting mechanism and integrated fume processing unit |
| CN108731181A (en) * | 2018-06-11 | 2018-11-02 | 郑州梦朵蓝节能设备有限公司 | High-rise Building Energy Saving ventilation equipment, ventilation shaft |
| CN108854292A (en) * | 2018-09-07 | 2018-11-23 | 浙江得亿制氧科技有限公司 | A kind of workshop air purification device |
| CN109621581A (en) * | 2018-12-18 | 2019-04-16 | 李三查 | Reel wire formula easy to clean dust-extraction unit |
| CN209604059U (en) * | 2018-12-26 | 2019-11-08 | 山西宏安翔科技股份有限公司 | A kind of safety of coal mines ventilation equipment |
| CN210145707U (en) * | 2019-05-09 | 2020-03-17 | 苏州诺易新环保科技有限公司 | Industrial waste dust collection system |
| CN110038367A (en) * | 2019-05-27 | 2019-07-23 | 王�锋 | Air purifier and its application, air cleaning system |
| CN110917763A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | Air automatic filtering device for continuously collecting and cleaning flying wadding on line |
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