CN107170554A - A kind of heat radiator dust screen cover - Google Patents
A kind of heat radiator dust screen cover Download PDFInfo
- Publication number
- CN107170554A CN107170554A CN201710486368.7A CN201710486368A CN107170554A CN 107170554 A CN107170554 A CN 107170554A CN 201710486368 A CN201710486368 A CN 201710486368A CN 107170554 A CN107170554 A CN 107170554A
- Authority
- CN
- China
- Prior art keywords
- radiator
- guide groove
- air filter
- shaped guide
- screen cover
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The heat radiator dust screen cover of the present invention, being set before radiator air inlet can deploy to block or fold the Air Filter stacked, pulley, reverse wheel are installed by fixed plate, and drive capstan winch folding and unfolding steel wire rope to control Air Filter to deploy or be folded down along U-shaped guide groove to stack upwards by motor control box, pass through the debris such as Air Filter blocks dust, grass cuttings, Yang Xu, insect, the heat radiator fin for reducing transformer adsorbs accumulation to debris, make heat abstractor networking unblocked, improve the radiating effect of radiator；Heat radiator dust screen cover is due to that can fold and deploy, easy disassembly and clean and maintenance；Heat radiator dust screen uses splicing structure, easy for installation, simple；Heat radiator dust screen cover mounting means, punching, welding procedure are not required to due to being fixedly connected, and not changing with radiator using special C-clamp in original heat spreader structures, installation process, the former modular construction of radiator is had no effect.
Description
Technical field
The present invention relates to a kind of heat radiator dust screen cover.
Background technology
Heat can be produced during the transformer normal work energy conversion of power equipment, and transformer temperature rise can increase interior
Consumption, influences delivery efficiency, and the too high transformer that also results in of temperature burns, it is necessary to distributes heat by heat abstractor, prevents transformation
Device temperature rise is too high；The radiator of especially high-power transformer is chronically exposed in air, is added the factors such as electrostatic and is easy to product
Poly- dirt, in addition when high-power fan exhausting heat radiation patrols ring, can also suck the debris such as outside dust, grass cuttings, Yang Xu, insect
To finned tube rear portion, one layer of flocculent substance is formed, transformer radiating is have impact on after accumulation is serious.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of debris that reduces and adsorb accumulation, prevent and mitigate radiator-grid
Road is blocked, and is cleared up easy to maintenance, is improved the radiating effect of radiator, is not pacified while solving former radiator by heat radiator dust screen cover
The heat radiator dust screen cover that dress mode influences and damaged on structure.
The heat radiator dust screen cover of the present invention, including Air Filter on a heat sink is set, it is characterised in that：It is described dust-proof
Net is arranged on before radiator air inlet；The generally L-shaped fixed plate in section, the top margin two of fixed plate are installed at the top of radiator
Holding downward bending to constitute has mounting ear on end plate, end plate, fixed plate is fixedly connected by mounting ear with radiator frame；It is fixed
Plate inside middle portion is provided with lifting pulley, and endplate outside is provided with reverse wheel, and radiator frame is located at the bottom below reverse wheel
Position, which is provided with front of tensioning wheel, tensioning wheel, is provided with capstan winch, and capstan winch is connected with motor control box, and motor control box, which is arranged on, to be dissipated
Hot device bottom；
U-shaped guide groove is installed, Air Filter both sides checkpost is loaded in U-shaped guide groove and can be along U in front of the body side frame of radiator two
Shape guide groove is moved up and down；At least one suspension hook is installed at the top of Air Filter, suspension hook is connected with steel wire rope, and steel wire rope is bypassed successively
It is connected to after lifting pulley, reverse wheel, tensioning wheel on capstan winch, motor control box provides rotary power for capstan winch, capstan winch can be just
Steel wire rope is tightened up to rotation winding and drives Air Filter to move up expansion and block to enter in radiator along U-shaped guide groove by suspension hook
In front of air port, or reversely rotate and loosen steel wire rope so that Air Filter moved down along U-shaped guide groove expose after folding is stacked it is scattered
Hot device air inlet；Fixed plate side is provided with travel switch, and travel switch communication is connected with motor control box；
Air Filter include it is some by the end to end dust excluding plate of hinge, hinge a positive and a negative of every piece of side of dust excluding plate two is interlocked
Install；Suspension hook is arranged on first piece of dust excluding plate upper side edge of the superiors, and suspension hook can drive first piece of dust excluding plate along U-shaped guide groove
Move up, and drive follow-up dust excluding plate to move up expansion along U-shaped guide groove successively by hinge and block in radiator air intake
In front of mouthful；Ranked and stacked pile is in radiator bottom after dust excluding plate can successively be folded by hinge when Air Filter is moved down；
There is a segment distance, U-shaped guide groove bottom and radiator between the support feet of the U-shaped guide groove bottom and radiator bottom
Distance is more than the height after Air Filter folding is stacked between the support feet of bottom；
Motor, control circuit, alignment circuit are installed, motor control box leads to external remote inside the motor control box
Cross wireless telecommunications connection；
Each dust excluding plate includes being mounted with screen cloth in rectangle installation frame, installation frame；
The U-shaped bumper rubber being adapted with U-shaped guide groove shape is provided with the U-shaped guide groove；
The U-shaped guide groove, the mounting ear of fixed plate are fixedly connected by C-clamp with radiator frame；
The fixed plate lower side has outside flanging, and first piece of dust excluding plate top edge of the Air Filter the superiors, which is fixedly connected with, to be hung
Plate, suspension hook is connected on boatswain chair；
The installation frame material is steel.
The heat radiator dust screen cover of the present invention, being set before the radiator air inlet of transformer can deploy to block or fold
The Air Filter of stacking, expansion is blocked can block the debris such as dust, grass cuttings, Yang Xu, insect in front of radiator air inlet, reduce
Debris absorption accumulation, the networking of heat abstractor is unblocked, improves the radiating effect of radiator, fold stack rear just dismount and
Clean and maintenance, clear up it is easy to maintenance, and do not change be not required in original heat spreader structures, installation process increase punching, welding procedure,
The former modular construction of radiator is had no effect.
Brief description of the drawings
Fig. 1 is the heat radiator dust screen cover dimensional structure diagram of the embodiment of the present invention；
Fig. 2 be the embodiment of the present invention the dust-proof net unfolding of heat radiator dust screen cover after dimensional structure diagram；
Fig. 3 is the heat radiator dust screen cover stereochemical structure top enlarged diagram of the embodiment of the present invention；
Fig. 4 is the heat radiator dust screen cover stereochemical structure bottom enlarged diagram of the embodiment of the present invention；
Fig. 5 is the Air Filter stereochemical structure enlarged diagram of the heat radiator dust screen cover of the embodiment of the present invention；
Fig. 6 is the heat radiator dust screen cover Air Filter planar structure enlarged diagram of the embodiment of the present invention.
Embodiment
As illustrated, a kind of heat radiator dust screen cover, including the Air Filter being arranged on the radiator 1 of transformer, it is dust-proof
Net is arranged on before radiator air inlet, by debris such as Air Filter blocks dust, grass cuttings, Yang Xu, insects, reduces transformer
Heat radiator fin is adsorbed to debris and gathered；The top of radiator 1 is provided with consolidating for L-shaped roughly the same with the top cross-section of radiator 1
Fixed board 2, the top margin two ends downward bending of fixed plate 2, which is constituted, has mounting ear on end plate, end plate, fixed plate 2 by mounting ear with
Radiator frame is fixedly connected, and the mounting ear of fixed plate 2 is fixedly connected by C-clamp 4 with radiator frame, is not required to increase and is beaten
Hole, welding procedure, radiator frame original structure is not destroyed.
The inside middle portion of fixed plate 2 is provided with lifting pulley 7, and endplate outside is provided with reverse wheel 8, and radiator frame, which is located at, to be changed
Tensioning wheel 16 is installed to the bottom position of the lower section of wheel 8, the front of tensioning wheel 16 is provided with capstan winch 11, and capstan winch 11 is connected with motor control
Case 10 processed, motor control box 10 is arranged on radiator bottom, and this example is arranged on support feet side；Pacify in front of the body side frame of radiator two
Equipped with U-shaped guide groove 3, Air Filter both sides checkpost is loaded in U-shaped guide groove 3 and can moved up and down along U-shaped guide groove 3；It is dust-proof
Net top is provided with least one suspension hook 13, can set a suspension hook 13 in Air Filter crown center position, can also be two
The mutually symmetrical with position in side sets two suspension hooks 13, can also set suspension hook 13 and two mutually symmetrical with suspension hooks 13 in the middle of one
It is combined, the present embodiment uses the scheme of middle suspension hook；Suspension hook 13 is connected with steel wire rope 9, and steel wire rope 9 bypasses lifting pulley successively
7th, it is connected to after reverse wheel 8, tensioning wheel 16 on capstan winch 11, motor control box 10 is that capstan winch 11 provides rotary power, the energy of capstan winch 11
Winding is enough rotated forward to tighten up steel wire rope 9 and drive Air Filter to move up expansion along U-shaped guide groove 3 and block by suspension hook 13
In front of radiator air inlet, or steel wire rope 9 is loosened in reverse rotation so that Air Filter moves down folded stack along U-shaped guide groove 3
Expose radiator air inlet after putting；The side of fixed plate 2 is provided with travel switch 12, Air Filter along U-shaped guide groove 3 move up when
The top edge of Air Filter is touched after travel switch 12, and the communication of travel switch 12 is connected with motor control box 10, passes through motor control
The control of case 10 capstan winch 11 processed is stopped the rotation, and Air Filter, which is fixed, to be blocked before radiator air inlet.
Air Filter include it is some by the end to end dust excluding plate 5 of hinge, the hinge 6 one of 5 liang of sides of every piece of dust excluding plate is just
One counter is staggered installation of；The suspension hook 13 of the present embodiment is arranged on the upper side edge centre position of first piece of dust excluding plate of the superiors 5, passes through suspension hook
13 first piece of dust excluding plate 5 of drive are moved up along U-shaped guide groove 3, drive follow-up dust excluding plate 5 to be oriented to along U-shaped successively by hinge 6
Groove 3 moves up expansion and blocked in front of radiator air inlet；When Air Filter is moved down dust excluding plate 5 can by hinge 6 according to
Ranked and stacked pile is in radiator bottom after secondary folding, and this example is deposited in above support feet, and rear cleaning easy to disassemble is safeguarded；Fixed plate 2
Lower side pros have outside flanging, equivalent to brim structure, and the flanging is mainly used in installing travel switch, and Air Filter is risen
Hang the control of height；First piece of top edge of dust excluding plate 5 of the Air Filter the superiors is fixedly connected with boatswain chair 15, and boatswain chair 15 has and fixation
The adaptable bending shape of the lower side of plate 2, suspension hook is connected on boatswain chair 15, and capstan winch drives Air Filter by Steel rope drive suspension hook
The top edge of boatswain chair 15 and the switch contact of stroke 12 when moving up, travel switch send command signal control capstan winch and stopped the rotation.
There is a segment distance, U-shaped guide groove bottom and radiator between U-shaped guide groove bottom and radiator bottom support feet
Distance is more than the height after Air Filter folding is stacked between the support feet of bottom, is provided for Air Filter and removes and installs space, dismounting peace
Dress is convenient.
Motor, control circuit, alignment circuit are installed, motor control box can be with peripheral hardware remote control inside motor control box 10
Device, motor control box is connected with external remote by wireless telecommunications, and motor switch state is controlled by external remote, is led to
Cross control circuit, alignment circuit control capstan winch rotary speed, direction of rotation；It can also be set outside the casing of motor control box 10
Knob, motor switch state is controlled by push-botton operation on the spot, by controlling circuit, alignment circuit to control capstan winch rotation speed
Degree, direction of rotation.
Each dust excluding plate 5 includes being mounted with screen cloth in rectangle installation frame, installation frame, and installation frame material is steel, sieve
Net materials are fixed according to needed for site environment and presence states, it would however also be possible to employ steel material or other materials, the sieve of the present embodiment
Net materials are steel, pass through the debris such as steel screen cloth blocks dust, grass cuttings, Yang Xu, insect, steel screen cloth high temperature resistant, corrosion resistance
Can be good；The U-shaped bumper rubber being adapted with U-shaped guide groove shape is provided with U-shaped guide groove, Air Filter and U-shaped can be buffered
The collision of guide groove, reduces noise；U-shaped guide groove, the mounting ear of fixed plate are fixed by C-clamp and radiator frame and connected
Connect, without increase punching, welding procedure, the original modular construction of radiator is not destroyed, it is easy for installation.
The heat radiator dust screen cover of the present invention, being set before the radiator air inlet of transformer can deploy to block or fold
The Air Filter of stacking, expansion is blocked can block the debris such as dust, grass cuttings, Yang Xu, insect in front of radiator air inlet, reduce
The heat radiator fin of transformer is adsorbed to debris and gathered, and heat abstractor networking is unblocked, improves the radiating effect of radiator, folding
Stack and put rear easy disassembly and clean and maintenance, clear up easy to maintenance, and do not change and be not required in original heat spreader structures, installation process
Increase punching, welding procedure, have no effect to the former modular construction of radiator.
1st, the radiator fan of main transformer in operation, can add Air Filter before radiator air intake, filtering dust,
The debris such as grass cuttings, Yang Xu, insect.
2nd, Air Filter wants easy disassembly and clean and maintenance to main transformer in operation.
3rd, Air Filter dust-proof covering can also exit covering to main transformer at any time in operation.
4th, the control requirement to Air Filter can be folded.
5th, Air Filter, which is installed, does not have structure to influence and structure destruction the former component of radiator.
Combination Air Filter is formed using steel screen cloth and steel frame Combined machining, big with ventilation, and succinct attractive in appearance, structure can
By the characteristics of.Combination Air Filter is joined end to end using hinge, and a positive and a negative is installed.
Knot of the present invention foldable assembled Special dustproof guard dust-proof for the radiator of main transformer device in dust-proof use
Bumper rubber 14 is installed, U-shaped guide groove 3 radiates installed in main transformer in the structure packed up after structure and dust-proof use, U-shaped guide groove 3
On the frame of the body two side faces of device 1, the frame for installing and using C-type clamp tool 4 and the body two side faces of main transformer radiator 1 is fastened, combination
Air Filter moves up and down lifting in U-shaped guide groove 3, when main transformer radiator body needs to carry out dust-proof protection, by the people that works
The motor that member is shaken in control operation motor control box 10, motor control box 10 is rotated, and drives the lifting on the scrolling of capstan winch 11, capstan winch 11
Steel wire rope 9 is reached center lifting pulley 7 by reverse wheel 8, pulled by hoist rope 9 by steel wire tensioning assembly pulley 16
Or loosening drop hanger 13 on hoist rope 9, combination Air Filter is sling or loosened to drop hanger 13 again, when slinging combination Air Filter, when
Combination Air Filter is when rising to the height of setting, encounters the travel switch 12 in fixed plate 2, motor automatic stopping, and
Self-locking is completed by the braking mechanism of motor itself.
When needing to clean and safeguarding combination Air Filter, staff, which shakes control operation motor control box 10, makes motor
Reversion declines, and combination Air Filter slowly declines because of own wt, because each dust excluding plate 5 for combining Air Filter passes through hinge 6 one
The installation connection of forward one-reverse, i.e., preceding block dust excluding plate is installed using hinge 6 is positive, and lower piece of dust excluding plate is installed using hinge 6 is reverse, group
Close automatic when Air Filter falls or can be stacked automatically by a little external force, facilitate staff to take out.
The top plate inner surface face and the top of transformer radiator 1 of fixed plate 2 fit, the mounting ear of the both sides of fixed plate 2
Stand on the horizontal bar of the slightly lower position of framework upper of transformer radiator 1, having 4 clampings using C-type clamp fastens；U-shaped is oriented to
Groove 3 is arranged on the frame of the two side faces of transformer radiator 1, is fastened using C-type clamp tool 4 and frame clamping；Motor control box
Motor, control circuit, alignment circuit are installed, the present embodiment motor control box 10 is arranged on main transformer radiator bottom in 10
On structural member, it is connected using anchor ear, clears up easy to maintenance, and do not change and be not required in original heat spreader structures, installation process
Increase punching, welding procedure, have no effect to the former modular construction of radiator.
Claims (9)
1. a kind of heat radiator dust screen cover, including the Air Filter being arranged on the radiator of transformer, it is characterised in that：It is described anti-
Dirt net is arranged on radiator（1）Before air inlet；Radiator（1）Top is provided with the generally L-shaped fixed plate in section（2）Gu,
Fixed board（2）Top margin two ends downward bendings constitute there is mounting ear, fixed plate on end plate, end plate（2）Pass through mounting ear and radiating
Device framework is fixedly connected；Fixed plate（2）Inside middle portion is provided with lifting pulley（7）, endplate outside is provided with reverse wheel（8）, dissipate
Hot device framework is located at reverse wheel（8）The bottom position of lower section is provided with tensioning wheel（16）, tensioning wheel（16）Front is provided with capstan winch
（11）, capstan winch（11）It is connected with motor control box（10）, motor control box（10）Installed in radiator（1）Bottom；
U-shaped guide groove is installed in front of the body side frame of radiator two（3）, Air Filter both sides checkpost is loaded on U-shaped guide groove（3）Interior and energy
Enough along U-shaped guide groove（3）Move up and down；At least one suspension hook is installed at the top of Air Filter（13）, suspension hook（13）It is connected with steel wire
Rope（9）, steel wire rope（9）Lifting pulley is bypassed successively（7）, reverse wheel（8）, tensioning wheel（16）After be connected to capstan winch（11）On, electricity
Machine control cabinet（10）For capstan winch（11）Rotary power, capstan winch are provided（11）Winding can be rotated forward and tighten up steel wire rope（9）And lead to
Cross suspension hook（13）Air Filter is driven along U-shaped guide groove（3）Expansion is moved up to block in front of radiator air inlet, or reversely
Steel wire rope is loosened in rotation（9）So that Air Filter is along U-shaped guide groove（3）Move down after folding is stacked and expose radiator air inlet；
Fixed plate（2）Side is provided with travel switch（12）, travel switch（12）With motor control box（10）Communication connection.
2. heat radiator dust screen cover according to claim 1, it is characterised in that：Air Filter passes through hinge including some（6）
End to end dust excluding plate（5）, every piece of dust excluding plate（5）The hinge of two sides（6）A positive and a negative is staggered installation of；Suspension hook（13）Install
In first piece of dust excluding plate of the superiors（5）On upper side edge, suspension hook（13）First piece of dust excluding plate can be driven（5）Along U-shaped guide groove（3）
Move up, and pass through hinge（6）Follow-up dust excluding plate is driven successively（5）Along U-shaped guide groove（3）Move up expansion and block and dissipating
In front of hot device air inlet；Dust excluding plate when Air Filter is moved down（5）Hinge can be passed through（6）Ranked and stacked pile is dissipating after folding successively
Hot device bottom.
3. heat radiator dust screen cover according to claim 1, it is characterised in that：The U-shaped guide groove（3）Bottom and radiating
There is a segment distance, U-shaped guide groove between the support feet of device bottom（3）Distance is more than anti-between bottom and radiator bottom support feet
Height after the stacking of dirt net folding.
4. heat radiator dust screen cover according to claim 1, it is characterised in that：The motor control box（10）Install inside
There are motor, control circuit, alignment circuit, motor control box（10）It is connected with external remote by wireless telecommunications.
5. heat radiator dust screen cover according to claim 2, it is characterised in that：Each dust excluding plate（5）Installed including rectangle
Screen cloth is mounted with frame, installation frame.
6. heat radiator dust screen cover according to claim 1, it is characterised in that：The U-shaped guide groove（3）Inside be provided with
U-shaped guide groove（3）The adaptable U-shaped bumper rubber of shape（14）.
7. heat radiator dust screen cover according to claim 1, it is characterised in that：The U-shaped guide groove（3）, fixed plate（2）
Mounting ear pass through C-clamp（4）It is fixedly connected with radiator frame.
8. heat radiator dust screen cover according to claim 2, it is characterised in that：The fixed plate（2）Lower side have to
Outer flanging, first piece of dust excluding plate of the Air Filter the superiors（5）Top edge is fixedly connected with boatswain chair（15）, suspension hook（13）It is connected to and hangs
Plate（15）On.
9. heat radiator dust screen cover according to claim 5, it is characterised in that：The installation frame material is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486368.7A CN107170554B (en) | 2017-06-23 | 2017-06-23 | Dustproof mesh enclosure of radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710486368.7A CN107170554B (en) | 2017-06-23 | 2017-06-23 | Dustproof mesh enclosure of radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107170554A true CN107170554A (en) | 2017-09-15 |
| CN107170554B CN107170554B (en) | 2023-05-16 |
Family
ID=59819193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710486368.7A Active CN107170554B (en) | 2017-06-23 | 2017-06-23 | Dustproof mesh enclosure of radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107170554B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938847A (en) * | 2017-11-14 | 2018-04-20 | 覃其伦 | A kind of environmental-protection coal canopy |
| CN110198036A (en) * | 2019-06-14 | 2019-09-03 | 国网新疆电力有限公司喀什供电公司 | A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method |
| CN110360196A (en) * | 2019-07-23 | 2019-10-22 | 国网江苏省电力有限公司检修分公司 | A kind of guide assembly |
| CN110474394A (en) * | 2019-08-21 | 2019-11-19 | 深圳睿蚁科技有限公司 | A kind of heat dissipation type charger |
| CN112594741A (en) * | 2020-12-23 | 2021-04-02 | 危晶英 | Energy-saving gas stove capable of reducing heat loss |
| CN116474479A (en) * | 2023-04-27 | 2023-07-25 | 孙亚锡 | Air quality detection system and detection method based on environmental protection |
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| CN205004133U (en) * | 2015-10-12 | 2016-01-27 | 国网新疆电力公司检修公司 | Be suitable for 750 kilovolts of main transformer cooling arrangement's of transformer substation dust keeper |
| CN207021101U (en) * | 2017-06-23 | 2018-02-16 | 国网江苏省电力公司检修分公司 | A kind of heat radiator dust screen cover |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938847A (en) * | 2017-11-14 | 2018-04-20 | 覃其伦 | A kind of environmental-protection coal canopy |
| CN110198036A (en) * | 2019-06-14 | 2019-09-03 | 国网新疆电力有限公司喀什供电公司 | A kind of comprehensive harmonic elimination apparatus and its harmonic elimination method |
| CN110360196A (en) * | 2019-07-23 | 2019-10-22 | 国网江苏省电力有限公司检修分公司 | A kind of guide assembly |
| CN110474394A (en) * | 2019-08-21 | 2019-11-19 | 深圳睿蚁科技有限公司 | A kind of heat dissipation type charger |
| CN112594741A (en) * | 2020-12-23 | 2021-04-02 | 危晶英 | Energy-saving gas stove capable of reducing heat loss |
| CN116474479A (en) * | 2023-04-27 | 2023-07-25 | 孙亚锡 | Air quality detection system and detection method based on environmental protection |
| CN116474479B (en) * | 2023-04-27 | 2024-03-15 | 深圳同创新科技工程有限公司 | Air quality detection system and detection method based on environmental protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107170554B (en) | 2023-05-16 |
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