CN109026395A - A kind of anti-catkin device of self-cleaning - Google Patents
A kind of anti-catkin device of self-cleaning Download PDFInfo
- Publication number
- CN109026395A CN109026395A CN201811003296.7A CN201811003296A CN109026395A CN 109026395 A CN109026395 A CN 109026395A CN 201811003296 A CN201811003296 A CN 201811003296A CN 109026395 A CN109026395 A CN 109026395A
- Authority
- CN
- China
- Prior art keywords
- catkin
- net
- cleaning
- passage
- air intake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 59
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000009432 framing Methods 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims description 15
- 244000309464 bull Species 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000010943 off-gassing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/055—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/002—Cleaning of turbomachines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of anti-catkin devices of self-cleaning, it is related to anti-catkin engineering device technique field, including structural framing, structural framing is equipped with air intake passage, air intake passage includes air inlet and air outlet, it is equipped with the anti-catkin net for separating air inlet and air outlet in air intake passage, and is equipped with the drum mechanism built for winding anti-catkin net, air intake passage is equipped with the control system for controlling drum mechanism built work；The two sides that air intake passage is located at anti-catkin net are equipped with pressure differential detection module；It is equipped with cleaning passage below air intake passage, high-pressure jet device is equipped in cleaning passage, high-pressure jet device is controlled by the work of pressure differential detection module, and the gas outlet of high-pressure jet device is arranged towards anti-catkin net.The present invention can detect automatically whether anti-catkin net needs to clean using pressure differential detection module, and the winding of anti-catkin net is controlled using drum mechanism built, automatically complete cleaning process, process is simple, uses manpower and material resources sparingly.
Description
Technical field
The present invention relates to anti-catkin engineering device technique fields, more particularly to a kind of anti-catkin device of self-cleaning.
Background technique
Gas turbine is gas continuously to flow as working medium impeller high speed rotation, is to have by the energy conversion of fuel
Diligent internal combustion type dynamic power machine is a kind of rotary vane type Thermal Motor, wherein needing to utilize compressor from ambient atmosphere
Environment constantly sucks air, and the catkin in air and some impurity enter inside compressor in order to prevent, need
Cloth is set up defences catkin net in inlet channel, but needing often to be timed anti-catkin net checks whether blocking, and is dismantled
Cleaning, process is complicated, and wasting manpower and material resources.
Summary of the invention
The technical problem to be solved by the present invention is to the anti-catkin nets of current gas turbine, need often to determine it
When check whether blocking, and carry out disassembly, cleaning, process is complicated, and wasting manpower and material resources.
In order to solve the above technical problems, the present invention provides a kind of anti-catkin device of self-cleaning, including structural framing, it is described
Structural framing is equipped with air intake passage, and the air intake passage includes air inlet and air outlet, is equipped with and separates in the air intake passage
The anti-catkin net of air inlet and air outlet, and it is equipped with the drum mechanism built for winding anti-catkin net, the air intake passage is equipped with
For controlling the control system of drum mechanism built work；The two sides that the air intake passage is located at anti-catkin net are equipped with pressure differential detection mould
Block, the control system are controlled by the work of pressure differential detection module；
It is equipped with cleaning passage below the air intake passage, is equipped with high-pressure jet device, the high-pressure jet in the cleaning passage
Device is controlled by the work of pressure differential detection module, and the gas outlet of the high-pressure jet device is arranged towards anti-catkin net.
The technical solution that the present invention further limits is: the drum mechanism built includes being located at air intake passage upper end, with
And coiling and lower mandrel member positioned at cleaning passage lower end, volume is equipped with batching, the anti-willow on the coiling and lower mandrel member
The upper and lower ends of net of wadding are fixedly connected with batching respectively, and the air intake passage, which is equipped with, is respectively used to control coiling and lower mandrel member
The motor of rotation, and the control system for controlling motor work.
Further, the cleaning passage is equipped with catkin collection system, the catkin far from one end of high-pressure jet device
Collection system includes positioned at cleaning passage lower section, and the sludge collecting box being connected to cleaning passage.
The middle part of a kind of preceding anti-catkin device of self-cleaning, the sludge collecting box inlet is equipped with bull stick, the bull stick
On be fixedly connected with cover board, the cover board is equipped with wind deflector towards one end of high-pressure jet device, when the high-pressure jet device
When work, the wind deflector and cleaning passage upper side wall are contradicted.
A kind of preceding anti-catkin device of self-cleaning, the wind deflector are in arcuation, and the outside of wind deflector described in arcuation
It is arranged close to cleaning passage upper side wall.
A kind of preceding anti-catkin device of self-cleaning, the inlet of the sludge collecting box is close to one end of high-pressure jet device
Equipped with several intake chambers.
A kind of preceding anti-catkin device of self-cleaning, the pressure differential detection module include the gas positioned at anti-catkin net two sides
Analyzer, and the measurement module for measuring difference between two air pressure analyzers are pressed, it is described when difference is greater than preset value
It measuring module and issues winding signal and jet signal, the motor controls anti-catkin net in response to winding signal and moves downward,
The high-pressure jet device works in response to jet signal.
A kind of preceding anti-catkin device of self-cleaning, the outgassing direction direction air inlet of high-pressure jet device gas outlet
Mouth setting.
The beneficial effects of the present invention are:
(1) the anti-catkin net that is arranged is located in air intake passage in the present invention, partition air inlet and air outlet, the air with catkin by
Air inlet is finally discharged by air outlet and is utilized via anti-catkin net filtration, pressure differential detection module real-time detection anti-catkin net two sides
Draught head control control system and high-pressure jet device when draught head reaches preset value and start to work, control system control
Drum mechanism built makes the cleaning passage movement of anti-catkin net downwards, i.e. lower mandrel member and coiling rotates simultaneously, so that coiling is put
Uncoiling cloth, lower mandrel member wind batching and anti-catkin net, and during winding, anti-catkin net is via high-pressure jet device, high pressure
Air-jet device can spray gas or air-water mixture, and the dirts such as the online catkin of anti-catkin are blown down, to complete to anti-
The automatic cleaning of catkin net, the present invention can detect automatically whether anti-catkin net needs to clean using pressure differential detection module, and utilize
Drum mechanism built controls the winding of anti-catkin net, automatically completes cleaning process, is without the anti-catkin net of operator's regular check
No blocking, without carrying out disassembly, cleaning, process is simple, uses manpower and material resources sparingly.
(2) the catkin collection system being arranged in the present invention prevents the dirts such as catkin for collecting the dirts such as the catkin blown off
Object pollutes cleaning passage, it is only necessary to clean to sludge collecting box, the cover board of setting is used to be closed the entrance of sludge collecting box, keeps out the wind
Plate can control cover board inclination when high-pressure water gas is blown, so that entrance automatically opens, the dirts such as catkin can largely edge
Cover board automatically flow into sludge collecting box, slow down the range of scatter of the dirts such as catkin, in addition, setting intake chamber can be closed in cover board
It closes when on entrance, so that sludge collecting box is connected to cleaning passage, so that water stain can continue to stay into sludge collecting box, more comprehensively receives
Collect dirt；
(3) the anti-catkin net in the present invention has a more catkin accumulation towards air inlet side, therefore by high-pressure jet device
The air inlet of the outgassing direction of gas outlet towards air intake passage is arranged, can be more smoothly by dirts such as the online catkins of anti-catkin
Object is blown off.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present embodiment is used to embody anti-catkin net.
Wherein: 1, air intake passage；11, air inlet；12, air outlet；2, cleaning passage；21, high-pressure jet device；211, go out
Port；3, sludge collecting box；31, cover board；311, wind deflector；32, intake chamber；401, coiling；402, lower mandrel member；41, batching；5, prevent
Catkin net；6, air pressure analyzer.
Specific embodiment
Embodiment: a kind of anti-catkin device of self-cleaning, as shown in Figure 1, including structural framing, structural framing is equipped with air inlet
Channel 1, air intake passage 1 include air inlet 11 and air outlet 12, are equipped in air intake passage 1 and separate air inlet 11 and air outlet 12
Anti- catkin net 5, the dirts such as catkin in air can be intercepted by anti-catkin net 5, and be remained on anti-catkin net 5.
Air intake passage 1 is equipped with the drum mechanism built for winding anti-catkin net 5, is equipped with cleaning passage below air intake passage 1
2, cleaning passage 2 is interior to be equipped with high-pressure jet device 21, and high-pressure jet device 21 is controlled by the work of pressure differential detection module, high-pressure jet
The gas outlet 211 of device 21 is arranged towards anti-catkin net 5, and 21 gas outlet 211 of high-pressure jet device outgassing direction towards into
Air port 11 is arranged.
Wherein, drum mechanism built includes being located at 1 upper end of air intake passage, and the coiling positioned at 2 lower end of cleaning passage
401 and lower mandrel member 402, volume is equipped with batching 41 on coiling 401 and lower mandrel member 402, the upper and lower ends of anti-catkin net 5 respectively with
Batching 41 is fixedly connected, and air intake passage 1 is equipped with the motor for being respectively used to control coiling 401 and the rotation of lower mandrel member 402, and
For controlling the control system of motor work, the two sides that air intake passage 1 is located at anti-catkin net 5 are equipped with pressure differential detection module, control
System controlled works in pressure differential detection module, and control system is one kind of central processing unit or integrated chip.
Pressure differential detection module includes the air pressure analyzer 6 positioned at anti-5 two sides of catkin net, and surveys for measuring two air pressures
The measurement module for determining difference between instrument 6, when difference is greater than preset value, measurement module issues winding signal and jet signal,
Motor controls anti-catkin net 5 in response to winding signal and moves downward, and high-pressure jet device 21 works in response to jet signal.
Cleaning passage 2 is equipped with catkin collection system far from one end of high-pressure jet device 21, and catkin collection system includes position
In the lower section of cleaning passage 2, and the sludge collecting box 3 be connected to cleaning passage 2, the middle part of 3 inlet of sludge collecting box is equipped with bull stick, on bull stick
It is fixedly connected with cover board 31, the inlet of sludge collecting box 3 is equipped with several intake chambers 32 close to one end of high-pressure jet device 21.
Cover board 31 is equipped with wind deflector 311 towards one end of high-pressure jet device 21, when high-pressure jet device 21 works, gear
Aerofoil 311 and 2 upper side wall of cleaning passage contradict, and wind deflector 311 is in arcuation, and the outside of arcuation wind deflector 311 is logical close to cleaning
The setting of 2 upper side wall of road.
Specific implementation is described as follows:
Air with catkin is filtered by air inlet 11 via anti-catkin net 5, is finally discharged and is utilized by air outlet 12, pressure differential detection mould
The draught head of anti-5 two sides of catkin net of block real-time detection controls control system and high-pressure jet dress when draught head reaches preset value
21 start-up operations are set, control system control drum mechanism built moves the cleaning passage 2 of anti-catkin net 5 downwards, i.e. lower mandrel member 402
It is rotated simultaneously with coiling 401, so that coiling 401 decontrols batching 41, lower mandrel member 402 winds batching 41 and anti-catkin net 5,
During winding, anti-catkin net 5 is via high-pressure jet device 21, and high-pressure jet device 21 can spray gas or air water is mixed
Object is closed, the dirts such as catkin on anti-catkin net 5 are blown down, to complete the automatic cleaning to anti-catkin net 5, the present invention is available
Pressure differential detection module detects whether anti-catkin net 5 needs to clean automatically, and the winding of anti-catkin net 5 is controlled using drum mechanism built,
Cleaning process is automatically completed, whether is blocked without the anti-catkin net 5 of operator's regular check, without carrying out disassembly, cleaning, mistake
Journey is simple, uses manpower and material resources sparingly.
In addition, the method that describes in conjunction with aspects disclosed herein or the step of algorithm and/or movement can be directly in hardware
In, embody in the software module executed by processor or in both described combination.Software module can reside within RAM storage
Device, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, can removable disk, CD-ROM
Or in the storage media of any other form known in the art.Exemplary storage medium can be coupled to processor, so that
Processor can read information from storage media and information is written to storage media.In alternative solution, storage media can be with processing
Device is integrated.In addition, in certain aspects, processor and storage media can reside in ASIC.In addition, ASIC can reside within
In user terminal.In alternative solution, processor and storage media can be used as discrete component resident in the user terminal.In addition,
In certain aspects, method or the step of algorithm and/or movement can be used as one of code and/or instruction or any combination or
Gather and resides on the machine-readable medium and/or computer-readable media that can be incorporated into computer program product.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (8)
1. a kind of anti-catkin device of self-cleaning, including structural framing, the structural framing is equipped with air intake passage (1), it is described into
Wind channel (1) includes air inlet (11) and air outlet (12), it is characterised in that: is equipped in the air intake passage (1) and separates air inlet
The anti-catkin net (5) of mouth (11) and air outlet (12), and it is equipped with the drum mechanism built for winding anti-catkin net (5), the air inlet
Channel (1) is equipped with the control system for controlling drum mechanism built work；The air intake passage (1) is located at anti-catkin net (5)
Two sides are equipped with pressure differential detection module, and the control system is controlled by the work of pressure differential detection module；
Cleaning passage (2) are equipped with below the air intake passage (1), are equipped with high-pressure jet device (21) in the cleaning passage (2),
The high-pressure jet device (21) is controlled by the work of pressure differential detection module, and the gas outlet of the high-pressure jet device (21)
(211) it is arranged towards anti-catkin net (5).
2. the anti-catkin device of a kind of self-cleaning according to claim 1, it is characterised in that: the drum mechanism built includes difference
Positioned at air intake passage (1) upper end, and be located at cleaning passage (2) lower end coiling (401) and lower mandrel member (402), it is described on
On reel (401) and lower mandrel member (402) volume be equipped with batching (41), the upper and lower ends of the anti-catkin net (5) respectively with batching
(41) be fixedly connected, the air intake passage (1) be equipped be respectively used to control coiling (401) and lower mandrel member (402) rotate
Motor, and the control system for controlling motor work.
3. the anti-catkin device of a kind of self-cleaning according to claim 2, it is characterised in that: the cleaning passage (2) is separate
One end of high-pressure jet device (21) is equipped with catkin collection system, and the catkin collection system includes being located under cleaning passage (2)
Side, and the sludge collecting box (3) being connected to cleaning passage (2).
4. the anti-catkin device of a kind of self-cleaning according to claim 3, it is characterised in that: sludge collecting box (3) inlet
Middle part be equipped with bull stick, be fixedly connected with cover board (31) on the bull stick, the cover board (31) is towards high-pressure jet device (21)
One end be equipped with wind deflector (311), when the high-pressure jet device (21) work, the wind deflector (311) and cleaning passage
(2) upper side wall contradicts.
5. the anti-catkin device of a kind of self-cleaning according to claim 4, it is characterised in that: the wind deflector (311) is in arc
Shape, and the outside of wind deflector described in arcuation (311) is arranged close to cleaning passage (2) upper side wall.
6. the anti-catkin device of a kind of self-cleaning according to claim 4, it is characterised in that: the entrance of the sludge collecting box (3)
Locate to be equipped with several intake chambers (32) close to the one end of high-pressure jet device (21).
7. the anti-catkin device of a kind of self-cleaning according to claim 1, it is characterised in that: the pressure differential detection module includes
Air pressure analyzer (6) positioned at anti-catkin net (5) two sides, and the survey for measuring difference between two air pressure analyzers (6)
Cover half block, when difference is greater than preset value, the measurement module, which issues, winds signal and jet signal, the motor in response to
Winding signal controls anti-catkin net (5) and moves downward, and the high-pressure jet device (21) works in response to jet signal.
8. the anti-catkin device of a kind of self-cleaning according to claim 1, it is characterised in that: the high-pressure jet device (21)
The outgassing direction of gas outlet (211) is arranged towards air inlet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003296.7A CN109026395B (en) | 2018-08-30 | 2018-08-30 | Self-cleaning catkin device of preventing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003296.7A CN109026395B (en) | 2018-08-30 | 2018-08-30 | Self-cleaning catkin device of preventing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026395A true CN109026395A (en) | 2018-12-18 |
| CN109026395B CN109026395B (en) | 2024-01-12 |
Family
ID=64625578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811003296.7A Active CN109026395B (en) | 2018-08-30 | 2018-08-30 | Self-cleaning catkin device of preventing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026395B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957828A (en) * | 2021-01-29 | 2021-06-15 | 华为技术有限公司 | Filter screen cleaning system, filter screen cleaning method and data center |
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| GB1409252A (en) * | 1971-10-26 | 1975-10-08 | Trox Gmbh Geb | Roller web filter for filtering gases |
| KR100861778B1 (en) * | 2007-08-24 | 2008-10-08 | 권영현 | An air conditioner with auto cleansing system to air-filter and controlling method |
| CN103521010A (en) * | 2013-10-17 | 2014-01-22 | 北京景盛泰和科技发展有限公司 | Scroll type filtering device applied to air supply or air cooling heat exchange system and heat exchange system |
| CN207050197U (en) * | 2017-08-08 | 2018-02-27 | 中铁第四勘察设计院集团有限公司 | A kind of indoor apparatus of air conditioner self cleaning filtering device |
| CN108411858A (en) * | 2018-02-13 | 2018-08-17 | 华北水利水电大学 | A kind of conveyance canal blocks algae device with adjustable single net |
| CN208845273U (en) * | 2018-08-30 | 2019-05-10 | 江苏华强新能源科技有限公司 | A kind of anti-catkin device of self-cleaning |
-
2018
- 2018-08-30 CN CN201811003296.7A patent/CN109026395B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1409252A (en) * | 1971-10-26 | 1975-10-08 | Trox Gmbh Geb | Roller web filter for filtering gases |
| KR100861778B1 (en) * | 2007-08-24 | 2008-10-08 | 권영현 | An air conditioner with auto cleansing system to air-filter and controlling method |
| CN103521010A (en) * | 2013-10-17 | 2014-01-22 | 北京景盛泰和科技发展有限公司 | Scroll type filtering device applied to air supply or air cooling heat exchange system and heat exchange system |
| CN207050197U (en) * | 2017-08-08 | 2018-02-27 | 中铁第四勘察设计院集团有限公司 | A kind of indoor apparatus of air conditioner self cleaning filtering device |
| CN108411858A (en) * | 2018-02-13 | 2018-08-17 | 华北水利水电大学 | A kind of conveyance canal blocks algae device with adjustable single net |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957828A (en) * | 2021-01-29 | 2021-06-15 | 华为技术有限公司 | Filter screen cleaning system, filter screen cleaning method and data center |
| EP4035758A1 (en) * | 2021-01-29 | 2022-08-03 | Huawei Digital Power Technologies Co., Ltd. | Filter cleaning system, filter cleaning method, and data center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109026395B (en) | 2024-01-12 |
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