CN107661678A - Air channel structure filters in a kind of VOC pretreatment chamber - Google Patents
Air channel structure filters in a kind of VOC pretreatment chamber Download PDFInfo
- Publication number
- CN107661678A CN107661678A CN201711101915.1A CN201711101915A CN107661678A CN 107661678 A CN107661678 A CN 107661678A CN 201711101915 A CN201711101915 A CN 201711101915A CN 107661678 A CN107661678 A CN 107661678A
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- Prior art keywords
- screws
- control cabinet
- voc
- air channel
- fixed
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The invention discloses a kind of VOC pretreatment chamber to filter air channel structure, including dust cleaning case, pretreatment box, the dust cleaning case bottom is provided with storage ash bucket, unloading valve is provided with below the storage ash bucket, air inlet pipe is provided with above the dust cleaning case, the dust cleaning case is internally provided with interior installing plate, filter cylinder is provided with the inside of the interior installing plate, pulse valve is connected with the filter cylinder, the dust cleaning case is connected with air-introduced machine by ventilation duct, reducing machine is provided between the air-introduced machine and the ventilation duct, the air-introduced machine is connected with the pretreatment box, control cabinet is provided with the pretreatment box side wall, observation window is provided with the control cabinet chamber door, the control cabinet chamber door side is provided with electromagnetic lock, the pretreatment box is internally provided with circulation air path.Beneficial effect is：Destruction decomposition can be carried out to the organic substance in VOC gas using plasma, avoid its discharge after pollution to environment, and by humidification can collecting and degrade in favor of organic matter, reduce air pollution.
Description
Technical field
The present invention relates to a kind of technical field of environment protection equipment, and air channel structure is filtered more particularly to a kind of VOC pretreatment chamber.
Background technology
VOC is VOC (volatile organic compounds) english abbreviation.Common meaning
On VOC be exactly to refer to volatile organic matter；But the definition on environment protection significance refers to active a kind of volatile organic matter, i.e., can
Produce that a kind of volatile organic matter of harm.VOC is VOC, has tremendous influence to health.Work as residence
When VOC in room reaches finite concentration, people can feel headache, Nausea and vomiting, weak etc. in the short time, occur when serious
Twitch, stupor, and liver, kidney, brain and the nervous system of people can be hurt, cause the serious consequences such as failure of memory.It is existing
Some VOC pretreatment chamber are mainly to dilute the content of VOC gas by stronger ventilation amount and then the harm reduced to human body.
The Chinese patent of Application No. 201620578209.0, disclose a kind of VOC pretreatment chamber filtering air channel structure, including test
Cabin, evaporator, heater, circulating fan and humidifier, test chamber is interior to be provided with laboratory, is provided with and follows between test chamber and laboratory
Ring air channel, the return air inlet and air outlet of laboratory are connected with circulation air path respectively, and evaporator, heater and circulating fan are installed in
The inside of circulation air path, humidifier is installed in the outside of test chamber and its delivery outlet is connected with circulation air path or directly installing
In the inside of circulation air path, the outside of test chamber is provided with VOC air inlet filtering devices and air exhausting device, VOC air inlet filtering devices
Exhaust outlet connects with circulation air path, and the suction opeing of air exhausting device connects with laboratory, is provided with the return air inlet of laboratory in VOC rooms
Filter.Above-mentioned patent still eliminates VOC gas simply by the convection current of air, but produces the material of harm still to human body
So exist, be not decomposed, destroy, be discharged in air and harm easily still is produced to human body.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides a kind of VOC pretreatment chamber filtering air channel structure.
The present invention is achieved through the following technical solutions above-mentioned purpose：
Air channel structure filters in a kind of VOC pretreatment chamber, including dust cleaning case, pretreatment box, the dust cleaning case bottom are provided with
Ash bucket is stored up, unloading valve is provided with below the storage ash bucket, is provided with air inlet pipe above the dust cleaning case, is set inside the dust cleaning case
Interior installing plate is equipped with, filter cylinder is provided with the inside of the interior installing plate, pulse valve is connected with the filter cylinder, the dust cleaning case passes through
Ventilation duct is connected with air-introduced machine, reducing machine is provided between the air-introduced machine and the ventilation duct, the air-introduced machine connection is
Pretreatment box is stated, control cabinet is provided with the pretreatment box side wall, observation window, the control are provided with the control cabinet chamber door
Case chamber door side processed is provided with electromagnetic lock, and the pretreatment box is internally provided with circulation air path, is provided with the circulation air path
Plasma transmitting probe, the plasma transmitting probe are electrically connected with plasma generator, and the circulation air path exit is set
There is ultraviolet germicidal lamp, the circulation air path is connected with blast pipe, and the pretreatment box inner bottom part is provided with storage tank, the storage
Water level monitor is provided with water tank, water pump is provided with beside the storage tank, atomizer is provided with above the water pump, it is described
Atomizer inner bottom part is provided with flash tank, and high-pressure nozzle is provided with above the flash tank.
Further, the storage ash bucket is welded on the dust cleaning case bottom, and the storage ash bucket is inverted cone-shaped structure, described to unload
Grey valve is fixed by screws in below the storage ash bucket, and the unloading valve is magnetic valve, the unloading valve and control cabinet electricity
Connection.
Further, the interior installing plate is fixed by screws in inside the pretreatment box, and the filter cylinder passes through screw
It is fixed on the interior installing plate, the cartridge array distribution, the filter cylinder tilts down certain angle.
Further, the pulse valve is fixed by screws on the dust cleaning case, each corresponding connection one of the filter cylinder
The individual pulse valve, the pulse valve electrically connect with the control cabinet.
Further, the circulation air path is fixed by screws in inside the pretreatment box, and the circulation air path is company
Continuous bending-type passage, the plasma transmitting probe are fixed by screws on the circulation air path inwall.
Further, the plasma transmitting probe on the circulation air path two side is symmetrical arranged, adjacent two pairs of institutes
It is 2cm-5cm to state the distance between plasma transmitting probe.
Further, the plasma generator is fixed by screws in inside the pretreatment box, the plasma hair
Raw device electrically connects with the control cabinet, and the plasma generator carries heat abstractor.
Further, the ultraviolet germicidal lamp is fixed by screws in the pretreatment box inner top, the ultraviolet
Bucker is provided with outside bactericidal lamp, the ultraviolet germicidal lamp electrically connects with the control cabinet.
Further, the storage tank is fixed by screws in inside the pretreatment box, and the storage tank is using stainless
Steel plate is welded, and the moisture storage capacity of the storage tank is not less than 0.5 ton, and the water level monitor is fixed by screws in the storage
In water tank side wall, the water level monitor electrically connects with the control cabinet, and the water pump is fixed by screws in the pretreatment
Bottom portion, the water pump inlet are connected with the bottom of storage tank, and the water pump water outlet end passes through flexible pipe and the atomization
Device is connected.
Further, the flash tank is fixed by screws in the atomizer inner bottom part, the flash tank and the water
Pump is connected, and the flash tank is heated by electric heating tube, and the flash tank electrically connects with the control cabinet, and the flash tank leads to
Piping is connected with the high-pressure nozzle, and the high-pressure nozzle is embedded in the pipe between the circulation air path and the blast pipe
On road.
The beneficial effects of the present invention are：Destruction decomposition can be carried out to the organic substance in VOC gas using plasma,
Avoid its discharge after pollution to environment, and by humidification can collecting and degrade in favor of organic matter, reduce air pollution.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of VOC pretreatment chamber filtering air channel structure of the present invention；
Fig. 2 is a kind of dust cleaning case internal structure sketch of VOC pretreatment chamber filtering air channel structure of the present invention；
Fig. 3 is a kind of pretreatment box internal structure sketch of VOC pretreatment chamber filtering air channel structure of the present invention；
Fig. 4 is a kind of atomizer internal structure sketch of VOC pretreatment chamber filtering air channel structure of the present invention.
Description of reference numerals is as follows：
1st, dust cleaning case；2nd, ash bucket is stored up；3rd, unloading valve；4th, air-introduced machine；5th, pretreatment box；6th, blast pipe；7th, electromagnetic lock；8th, control
Case processed；9th, observation window；10th, reducing machine；11st, ventilation duct；12nd, air inlet pipe；13rd, plasma generator；14th, ultraviolet germicidal lamp；
15th, atomizer；16th, storage tank；17th, water level monitor；18th, circulation air path；19th, plasma transmitting probe；20th, high-pressure nozzle；
21st, flash tank；22nd, water pump；23rd, filter cylinder；24th, pulse valve；25th, interior installing plate.
Embodiment
With reference to embodiment and accompanying drawing, the invention will be further described：
As Figure 1-Figure 4, a kind of VOC pretreatment chamber filtering air channel structure, including dust cleaning case 1, pretreatment box 5, it is described
The bottom of dust cleaning case 1 is provided with storage ash bucket 2, and storage ash bucket 2 lower section is provided with unloading valve 3, the top of dust cleaning case 1 be provided with into
Tracheae 12, the dust cleaning case 1 are internally provided with interior installing plate 25, and the interior inner side of installing plate 25 is provided with filter cylinder 23, the filter
Pulse valve 24 is connected with cylinder 23, the dust cleaning case 1 is connected with air-introduced machine 4 by ventilation duct 11, and the air-introduced machine 4 leads to described
Reducing machine 10 is provided between airduct 11, the air-introduced machine 4 is connected with the pretreatment box 5, set in the side wall of pretreatment box 5
Control cabinet 8 is equipped with, observation window 9 is provided with the chamber door of control cabinet 8, the chamber door side of control cabinet 8 is provided with electromagnetic lock 7,
The pretreatment box 5 is internally provided with circulation air path 18, and plasma transmitting probe 19 is provided with the circulation air path 18, described
Plasma transmitting probe 19 is electrically connected with plasma generator 13, and the exit of circulation air path 18 is provided with ultraviolet germicidal lamp
14, the circulation air path 18 is connected with blast pipe 6, and the inner bottom part of pretreatment box 5 is provided with storage tank 16, the storage tank 16
Water level monitor 17 is inside provided with, the side of storage tank 16 is provided with water pump 22, and the top of water pump 22 is provided with atomizer
15, the inner bottom part of atomizer 15 is provided with flash tank 21, and the top of flash tank 21 is provided with high-pressure nozzle 20.
In the present embodiment, the storage ash bucket 2 is welded on the bottom of dust cleaning case 1, and the storage ash bucket 2 is inverted cone-shaped structure,
The unloading valve 3 is fixed by screws in the lower section of storage ash bucket 2, and the unloading valve 3 is magnetic valve, the unloading valve 3 and institute
Control cabinet 8 is stated to electrically connect.
In the present embodiment, the interior installing plate 25 is fixed by screws in inside the pretreatment box 5, and the filter cylinder 23 is logical
Cross screw to be fixed on the interior installing plate 25, the array distribution of filter cylinder 23, the filter cylinder 23 tilts down certain angle.
In the present embodiment, the pulse valve 24 is fixed by screws on the dust cleaning case 1, each correspondence of filter cylinder 23
A pulse valve 24 is connected, the pulse valve 24 electrically connects with the control cabinet 8.
In the present embodiment, the circulation air path 18 is fixed by screws in inside the pretreatment box 5, the circulation air path
18 be continuous bending type passage, and the plasma transmitting probe 19 is fixed by screws on the inwall of circulation air path 18.
In the present embodiment, the plasma transmitting probe 19 on the two side of circulation air path 18 is symmetrical arranged, adjacent
The distance between two pairs of described plasma transmitting probes 19 are 2cm-5cm.
In the present embodiment, the plasma generator 13 is fixed by screws in inside the pretreatment box 5, the grade from
Electronic generator 13 electrically connects with the control cabinet 8, and the plasma generator 13 carries heat abstractor.
In the present embodiment, the ultraviolet germicidal lamp 14 is fixed by screws in the inner top of pretreatment box 5, the purple
Bucker is provided with outside outside line bactericidal lamp 14, the ultraviolet germicidal lamp 14 electrically connects with the control cabinet 8.
In the present embodiment, the storage tank 16 is fixed by screws in inside the pretreatment box 5, and the storage tank 16 is adopted
It is welded with stainless steel plate, the moisture storage capacity of the storage tank 16 is not less than 0.5 ton, and the water level monitor 17 is consolidated by screw
It is scheduled in the side wall of storage tank 16, the water level monitor 17 electrically connects with the control cabinet 8, and the water pump 22 passes through screw
The bottom of pretreatment box 5 is fixed on, the water inlet end of water pump 22 is connected with the bottom of storage tank 16, and the water pump 22 goes out
Water end (W.E.) is connected by flexible pipe with the atomizer 15.
In the present embodiment, the flash tank 21 is fixed by screws in the inner bottom part of atomizer 15, the flash tank 21
It is connected with the water pump 22, the flash tank 21 is heated by electric heating tube, and the flash tank 21 is electrically connected with the control cabinet 8
Connect, the flash tank 21 is connected by pipeline with the high-pressure nozzle 20, and the high-pressure nozzle 20 is embedded in the circulated air
On pipeline between road 18 and the blast pipe 6.
The present invention concrete operating principle be：VOC gas enter in the dust cleaning case 1 from the air inlet pipe 12, by institute
Dust and impurity therein are removed after stating the filtering of filter cylinder 23, the gas after filtering enters in the pretreatment box 5, and gas is from institute
State in circulation air path 18 by when plasma is within the time of Millisecond caused by the plasma transmitting probe 19, to waste gas
Bombardment fracture is carried out with air molecule key, produces high concentration, high intensity, various living radicals, high energy electron, the height of high-energy
Can ion etc., while produce the mixed gas such as a large amount of ozone, elemental oxygen, ecological oxygen, carry out a series of complex differentiation cracking and
Redox reaction；The nucleic acid that living radical and ozone can be destroyed effectively in various viruses, bacterium, protein, makes it
Can not normally it be metabolized and biosynthesis, so as to cause its dead；And ecological oxygen rapidly can enter emission molecule gas with foreign flavor
Row decomposes or is reduced to low molecule innocuous substance；In addition, by the polymerization suction-operated of the electronics in plasma and ion, can
To carry out effective adsorption and sedimentation processing, the ultraviolet germicidal lamp 14 to the trickle organic exhaust gas particulate matter of as low as submicron order
Further the bacterium in gas is killed, the atomizer 15 is ejected into gas after high temperature and high pressure gas are atomized, profit
Organic substance in air is adsorbed with the globule and dust forms larger particle, and gas is from bulky grain after the blast pipe 6 discharge
It is natural that the globule is deposited in ground upper returning.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its Xiao Wu circle
It is fixed.
Claims (10)
1. air channel structure filters in a kind of VOC pretreatment chamber, it is characterised in that：It is described to remove including dust cleaning case (1), pretreatment box (5)
Dirt case (1) bottom is provided with storage ash bucket (2), and unloading valve (3), dust cleaning case (1) top are provided with below the storage ash bucket (2)
Air inlet pipe (12) is provided with, the dust cleaning case (1) is internally provided with interior installing plate (25), set on the inside of the interior installing plate (25)
There is filter cylinder (23), pulse valve (24) is connected with the filter cylinder (23), the dust cleaning case (1) is connected with by ventilation duct (11) draws
Blower fan (4), is provided with reducing machine (10) between the air-introduced machine (4) and the ventilation duct (11), the air-introduced machine (4) is connected with
The pretreatment box (5), control cabinet (8) is provided with pretreatment box (5) side wall, is set on control cabinet (8) chamber door
There is observation window (9), control cabinet (8) the chamber door side is provided with electromagnetic lock (7), and the pretreatment box (5), which is internally provided with, follows
Ring air channel (18), plasma transmitting probe (19), the plasma transmitting probe (19) are provided with the circulation air path (18)
Plasma generator (13) is electrically connected with, circulation air path (18) exit is provided with ultraviolet germicidal lamp (14), described to follow
Ring air channel (18) is connected with blast pipe (6), and pretreatment box (5) inner bottom part is provided with storage tank (16), the storage tank
(16) water level monitor (17) is provided with, water pump (22), water pump (22) top are provided with beside the storage tank (16)
Atomizer (15) is provided with, atomizer (15) inner bottom part is provided with flash tank (21), set above the flash tank (21)
There is high-pressure nozzle (20).
A kind of 2. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The storage ash bucket (2)
The dust cleaning case (1) bottom is welded on, the storage ash bucket (2) is inverted cone-shaped structure, and the unloading valve (3) is fixed by screws in
Below the storage ash bucket (2), the unloading valve (3) is magnetic valve, and the unloading valve (3) electrically connects with the control cabinet (8).
A kind of 3. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The interior installing plate
(25) it is internal to be fixed by screws in the pretreatment box (5), the filter cylinder (23) is fixed by screws in the interior installing plate
(25) on, filter cylinder (23) array distribution, the filter cylinder (23) tilts down certain angle.
A kind of 4. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The pulse valve
(24) it is fixed by screws on the dust cleaning case (1), one pulse valve (24) of each corresponding connection of the filter cylinder (23),
The pulse valve (24) electrically connects with the control cabinet (8).
A kind of 5. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The circulation air path
(18) it is internal to be fixed by screws in the pretreatment box (5), the circulation air path (18) is continuous bending type passage, described etc.
Emission of ions probe (19) is fixed by screws on the circulation air path (18) inwall.
A kind of 6. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The circulation air path
(18) the plasma transmitting probe (19) on two side is symmetrical arranged, adjacent two pairs of plasma transmitting probes (19) it
Between distance be 2cm-5cm.
A kind of 7. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The plasma hair
Raw device (13) is fixed by screws in the pretreatment box (5) inside, the plasma generator (13) and the control cabinet (8)
Electrical connection, the plasma generator (13) carry heat abstractor.
A kind of 8. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The ultraviolet kills
Bacterium lamp (14) is fixed by screws in the pretreatment box (5) inner top, is provided with outside the ultraviolet germicidal lamp (14) anti-
Water cover, the ultraviolet germicidal lamp (14) electrically connect with the control cabinet (8).
A kind of 9. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The storage tank
(16) it is internal to be fixed by screws in the pretreatment box (5), the storage tank (16) is welded using stainless steel plate, described
The moisture storage capacity of storage tank (16) is not less than 0.5 ton, and the water level monitor (17) is fixed by screws in the storage tank (16)
In side wall, the water level monitor (17) electrically connects with the control cabinet (8), and the water pump (22) is fixed by screws in described
Pretreatment box (5) bottom, water pump (22) water inlet end are connected with the storage tank (16) bottom, water pump (22) water outlet
End is connected by flexible pipe with the atomizer (15).
A kind of 10. VOC pretreatment chamber filtering air channel structure according to claim 1, it is characterised in that：The flash tank
(21) atomizer (15) inner bottom part is fixed by screws in, the flash tank (21) is connected with the water pump (22), institute
State flash tank (21) to heat by electric heating tube, the flash tank (21) electrically connects with the control cabinet (8), the flash tank
(21) be connected by pipeline with the high-pressure nozzle (20), the high-pressure nozzle (20) be embedded in the circulation air path (18) with
On pipeline between the blast pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711101915.1A CN107661678A (en) | 2017-11-10 | 2017-11-10 | Air channel structure filters in a kind of VOC pretreatment chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711101915.1A CN107661678A (en) | 2017-11-10 | 2017-11-10 | Air channel structure filters in a kind of VOC pretreatment chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107661678A true CN107661678A (en) | 2018-02-06 |
Family
ID=61143745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711101915.1A Withdrawn CN107661678A (en) | 2017-11-10 | 2017-11-10 | Air channel structure filters in a kind of VOC pretreatment chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107661678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539630A (en) * | 2018-05-04 | 2018-09-14 | 峨眉山长宇电气有限公司 | A kind of box-type substation with efficient radiating apparatus |
-
2017
- 2017-11-10 CN CN201711101915.1A patent/CN107661678A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539630A (en) * | 2018-05-04 | 2018-09-14 | 峨眉山长宇电气有限公司 | A kind of box-type substation with efficient radiating apparatus |
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Application publication date: 20180206 |
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| WW01 | Invention patent application withdrawn after publication |