CN206522182U - Explosion-proof type diesel motor exhaust processing equipment - Google Patents
Explosion-proof type diesel motor exhaust processing equipment Download PDFInfo
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- CN206522182U CN206522182U CN201720214103.7U CN201720214103U CN206522182U CN 206522182 U CN206522182 U CN 206522182U CN 201720214103 U CN201720214103 U CN 201720214103U CN 206522182 U CN206522182 U CN 206522182U
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- particulate matter
- bend pipe
- pipe
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- connecting rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model discloses a kind of explosion-proof type diesel motor exhaust processing equipment, it is related to field of environment protection equipment, including middle siphunculus, central processing unit and filtration treatment portion, filtration treatment portion includes particulate matter trap, catalytic oxidizing converter, the first bend pipe and the second bend pipe.Particulate matter trap is used to adsorb and trap the particulate matters such as the carbon particle in tail gas, and particulate matter easily causes the blocking of particulate matter trap on particulate matter trap during a large amount of aggregations, easily cause filtration treatment portion is internally formed high pressure.The pressure sensor being arranged in particulate matter trap detects pressure and pressure data is transferred into central processing unit in real time, when pressure value has exceeded default safety value, central processing unit sends trigger signal to cylinder, the piston rod of cylinder drives second connecting rod to rotate, second connecting rod drives first connecting rod to rotate, first connecting rod drives the rotation of butterfly valve, siphunculus is in the conduction state in after butterfly valve rotation, eliminates the potential safety hazard of filtration treatment portion blast.
Description
Technical field
The utility model is related to field of environment protection equipment, more particularly to a kind of explosion-proof type diesel motor exhaust processing equipment.
Background technology
Generating set exhaust emissions administration way is varied, and current most common water sprinkler system can not meet state
Environmental administration of family also improves the national protective awareness to environment to the demand of examination, the environmental protection standard of increasingly specification.Water spray
The efficiency of processing is less than 30%, it is impossible to which full effect solves particulate matter, CO, HC, nitrogen oxides discharged in diesel motor exhaust etc.
Atmosphere pollution, while early stage Water spray is welded using carbon steel sheet, tail gas and shower water formation weak acid corrosion casing.Using filtering
Device coordinates catalytic oxidation-reduction effectively to be solved the above problems to carry out vent gas treatment, but filter is easily blocked, logical
There is the potential safety hazard exploded in the case that the exhaust flow crossed is larger.
Utility model content
The purpose of this utility model is to provide a kind of explosion-proof type diesel motor exhaust processing equipment, to tail gas clean-up
While can prevent filter from blocking the blast that causes.
For up to this purpose, the utility model uses following technical scheme：
A kind of explosion-proof type diesel motor exhaust processing equipment, including middle siphunculus, central processing unit and at least one filtering
Processing unit, the filtration treatment portion includes particulate matter trap, catalytic oxidizing converter, the first bend pipe and the second bend pipe, described
One end of first bend pipe is connected on the side wall of the middle siphunculus, the other end and the catalytic oxidizing converter of first bend pipe
It is connected, side of the catalytic oxidizing converter away from first bend pipe is connected with the particulate matter trap, the particle
Side of the thing trap away from the catalytic oxidizing converter is connected with second bend pipe, and second bend pipe is away from described
One end of grain thing trap is connected on the side wall of the middle siphunculus, and one end of the middle siphunculus is provided with air inlet, the middle siphunculus
The other end be provided with gas outlet, the middle siphunculus is provided with butterfly valve, and the butterfly valve is located at first bend pipe and described second curved
Between pipe and the tie point of the middle siphunculus, the butterfly valve is provided with first connecting rod, one end of the first connecting rod and the butterfly
Valve is fixedly connected, and the other end of the first connecting rod is connected with second connecting rod, and the first connecting rod is rotated with the second connecting rod to be connected
Connect, the middle siphunculus is provided with cylinder, the cylinder barrel of the cylinder is fixedly connected with the middle siphunculus, and the second connecting rod is away from institute
The one end for stating first connecting rod is connected with the piston rod rotation of the cylinder, and pressure sensor is provided with the particulate matter trap,
The pressure sensor is connected with the central processing unit signal, and the cylinder is electrically connected with the central processing unit.
Specifically, particulate matter trap is used to adsorb and trap the particulate matters such as the carbon particle in tail gas, and particulate matter is in particle
Siphunculus is due to the effect of butterfly valve in being easily caused on thing trap during a large amount of aggregations under the blocking of particulate matter trap, conventional sense
State in blocking, and the flow of diesel emission tail gas is very big, easily causes the high pressure that is internally formed in filtration treatment portion,
In the presence of the potential safety hazard of blast.The pressure sensor being arranged in particulate matter trap detects pressure and passes pressure data in real time
Central processing unit is defeated by, central processing unit sends trigger signal, cylinder to cylinder when pressure value has exceeded default safety value
Piston rod drive second connecting rod rotate, second connecting rod drive first connecting rod rotate, first connecting rod drive butterfly valve rotation, butterfly valve
Siphunculus is in the conduction state in after rotation, and tail gas can be discharged by middle siphunculus, eliminates the safety of filtration treatment portion blast
Hidden danger.
Preferably, the quantity in the filtration treatment portion is two, two filtration treatment portions are along the middle siphunculus
Axisymmetrical is set.
Further, two filtration treatment portions are set to improve the purification efficiency of processing equipment, while two filtration treatments
Portion shares a middle siphunculus, simplifies the structure of processing equipment.
Preferably, characterized in that, being provided with first flange between first bend pipe and the catalytic oxidizing converter
Disk, first bend pipe is connected by the first flange disk with the catalytic oxidizing converter, the catalytic oxidizing converter
Second flange disk is provided between the particulate matter trap, the catalytic oxidizing converter passes through the second flange disk and institute
State particulate matter trap to be connected, the 3rd ring flange, the particle are provided between the particulate matter trap and second bend pipe
Thing trap is connected by the 3rd ring flange with second bend pipe.
Preferably, the catalytic oxidizing converter is alloy or ceramic material, applied in the catalytic oxidizing converter
It is covered with noble metal catalyst, the particulate matter trap and is provided with filtering core, the filtering core is cylindrical shape, the mistake
Filter body is by alloying metal filament winding system.
Specifically, the nitric oxide that contains in tail gas, soluble organic fraction (Soluble Organic Fractions,
SOF noble metal catalyst catalysis and the oxygen that), hydrocarbon and carbon monoxide are coated with catalytic oxidizing converter occur
Reaction, partial reaction formula is as follows：HC+O2→H2O+CO, CO+O2→CO2, SOF+O2→H2O+CO, NO+O2→NO2。
Preferably, the air inlet is connected with air inlet pipe, the one end of the air inlet pipe away from the air inlet is connected with noise elimination
Device, the one end of the silencer away from the air inlet pipe is connected with the 3rd bend pipe, the 3rd bend pipe away from the silencer one
End is connected with elastic bellows, and the one end of the elastic bellows away from the 3rd bend pipe is provided with the 4th ring flange.
Specifically, silencer is the function that processing equipment adds noise reduction, and the 4th ring flange is used for and diesel generating set
It is connected, the bolster that elastic bellows are connected as the 4th ring flange with diesel generating set.
Preferably, the gas outlet is connected with escape pipe, the escape pipe is provided with urea nozzle and the first nitrogen oxides
Sensor, the urea nozzle is connected with the central processing unit signal, first NOx sensor and the center
Processor signal is connected, and the one end of the escape pipe away from the gas outlet is connected with denitration process case, the denitration process case
Provided with catalyst carrier, the catalyst carrier is provided with SCR catalyst.
Specifically, the SCR catalyst for being catalyzed ammonia and reaction of nitrogen oxides is provided with catalyst carrier, it is specific anti-
Answer formula as follows：NH3+NO2→N2+H2O,NH3+NO+O2→N2+H2O,NH3+NO2+NO→N2+H2O.First NOx sensor
For detecting the content of nitrogen oxide in tail gas and the data of content being transferred into central processing unit, central processing unit is according to nitrogen oxygen
The data of compound send work order to urea nozzle, and urea nozzle exports appropriate urea liquid, it is to avoid without sufficient ammonia
Gas and the reaction of nitrogen oxides in tail gas.
Preferably, the escape pipe is provided with the first temperature sensor, first temperature sensor and the center
Processor signal is connected, and the side of the denitration process case away from the escape pipe is connected with blast pipe, and the blast pipe is provided with
Second temperature sensor and the second NOx sensor, the second temperature sensor connect with the central processing unit signal
Connect, second NOx sensor is connected with the central processing unit signal.
The beneficial effects of the utility model：Siphunculus acting in the state blocked due to butterfly valve under conventional sense, and
The flow of diesel emission tail gas is very big, and easily cause filtration treatment portion is internally formed high pressure, and the safety that there is blast is hidden
Suffer from, the pressure sensor being arranged in particulate matter trap detects pressure and pressure data is transferred into central processing unit in real time,
When pressure value has exceeded default safety value, central processing unit sends trigger signal to cylinder, and the piston rod of cylinder drives second
Link rotatable, second connecting rod drives first connecting rod to rotate, and first connecting rod drives the rotation of butterfly valve, and middle siphunculus is in after butterfly valve rotation
Conducting state, tail gas can be discharged by middle siphunculus, eliminate the potential safety hazard of filtration treatment portion blast.
Brief description of the drawings
Fig. 1 is the structural representation of tail gas treatment device in embodiment one；
Fig. 2 is the structural representation of tail gas treatment device in embodiment two；
In figure：
1st, middle siphunculus；101st, butterfly valve；102nd, first connecting rod；103rd, second connecting rod；104th, cylinder；
2nd, filtration treatment portion；201st, particulate matter trap；2011st, filtering core；202nd, catalytic oxidizing converter；203rd,
One bend pipe；204th, the second bend pipe；205th, first flange disk；206th, second flange disk；207th, the 3rd ring flange；208th, air inlet pipe；
209th, escape pipe；2091st, urea nozzle；
3rd, silencer；
4th, the 3rd bend pipe；401st, elastic bellows；402nd, the 4th ring flange；
5th, denitration process case；501st, catalyst carrier；502nd, blast pipe.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Embodiment one
A kind of explosion-proof type diesel motor exhaust processing equipment as shown in Figure 1, including middle siphunculus 1, central processing unit and
At least one filtration treatment portion 2, filtration treatment portion 2 includes particulate matter trap 201, catalytic oxidizing converter 202, the first bend pipe
203 and second bend pipe 204, one end of the first bend pipe 203 is connected on the side wall of middle siphunculus 1, and the other end of the first bend pipe 203 is with urging
Change oxidation converter 202 to be connected, side of the catalytic oxidizing converter 202 away from the first bend pipe 203 and the phase of particulate matter trap 201
Even, side of the particulate matter trap 201 away from catalytic oxidizing converter 202 is connected with the second bend pipe 204, and the second bend pipe 204 is remote
One end from particulate matter trap 201 is connected on the side wall of middle siphunculus 1, and one end of middle siphunculus 1 is provided with air inlet, middle siphunculus 1
The other end is provided with gas outlet, and middle siphunculus 1 is provided with butterfly valve 101, and butterfly valve 101 is located at the first bend pipe 203 and the second bend pipe 204 with
Between the tie point of siphunculus 1, butterfly valve 101 is provided with first connecting rod 102, and one end of first connecting rod 102 is fixed with butterfly valve 101 to be connected
Connect, the other end of first connecting rod 102 is connected with second connecting rod 103, and first connecting rod 102 is rotated with second connecting rod 103 and is connected, middle siphunculus
1 is provided with cylinder 104, and the cylinder barrel of cylinder 104 is fixedly connected with middle siphunculus 1, second connecting rod 103 away from first connecting rod 102 one
End is connected with the piston rod rotation of cylinder 104, and pressure sensor, pressure sensor and center are provided with particulate matter trap 201
Processor signal is connected, and cylinder 104 is electrically connected with central processing unit.
Specifically, particulate matter trap 201 is used to adsorbing and trap the particulate matters such as carbon particle in tail gas, particulate matter
In being easily caused on grain thing trap 201 during a large amount of aggregations under the blocking of particulate matter trap 201, conventional sense siphunculus 1 due to
The effect of butterfly valve 101 is in the state blocked, and the flow of diesel emission tail gas is very big, easily causes filtration treatment portion 2
The potential safety hazard for being internally formed high pressure, there is blast.The pressure sensor being arranged in particulate matter trap 201 is detected in real time
Pressure data is simultaneously transferred to central processing unit by pressure, and when pressure value has exceeded default safety value, central processing unit is to cylinder
104 send trigger signal, and the piston rod of cylinder 104 drives second connecting rod 103 to rotate, and second connecting rod 103 drives first connecting rod 102
Rotate, first connecting rod 102 drives the rotation of butterfly valve 101, and middle siphunculus 1 is in the conduction state after the rotation of butterfly valve 101, and tail gas can pass through
Middle siphunculus 1 is discharged, and eliminates the potential safety hazard of the blast of filtration treatment portion 2.
In the present embodiment, it is characterised in that the first method is provided between the first bend pipe 203 and catalytic oxidizing converter 202
Blue disk 205, the first bend pipe 203 is connected by first flange disk 205 with catalytic oxidizing converter 202, catalytic oxidizing converter 202
Between particulate matter trap 201 be provided with second flange disk 206, catalytic oxidizing converter 202 by second flange disk 206 with
Grain thing trap 201 is connected, and the 3rd ring flange 207 is provided between the bend pipe 204 of particulate matter trap 201 and second, and particulate matter is caught
Storage 201 is connected by the 3rd ring flange 207 with the second bend pipe 204.
In the present embodiment, catalytic oxidizing converter 202 is in alloy or ceramic material, catalytic oxidizing converter 202
It is coated with noble metal catalyst, particulate matter trap 201 and is provided with filtering core 2011, filtering core 2011 is cylindrical shape,
Filtering core 2011 is by alloying metal filament winding system.
Specifically, the nitric oxide that contains in tail gas, soluble organic fraction (Soluble Organic Fractions,
SOF noble metal catalyst catalysis and oxygen that), hydrocarbon and carbon monoxide are coated with catalytic oxidizing converter 202
React, partial reaction formula is as follows：HC+O2→H2O+CO, CO+O2→CO2, SOF+O2→H2O+CO, NO+O2→NO2。
In the present embodiment, air inlet is connected with air inlet pipe 208, and the one end of air inlet pipe 208 away from air inlet is connected with silencer
3, the one end of silencer 3 away from air inlet pipe 208 is connected with the 3rd bend pipe 4, and the 3rd one end of bend pipe 4 away from silencer 3 is connected with elasticity
Bellows 401, the one end of elastic bellows 401 away from the 3rd bend pipe 4 is provided with the 4th ring flange 402.
Specifically, silencer 3 is the function that processing equipment adds noise reduction, and the 4th ring flange 402 is used for and diesel generation
Unit is connected, the bolster that elastic bellows 401 are connected as the 4th ring flange 402 with diesel generating set.
In the present embodiment, gas outlet is connected with escape pipe 209, and escape pipe 209 is provided with the nitrogen of urea nozzle 2091 and first
Oxide sensor, urea nozzle 2091 is connected with central processing unit signal, the first NOx sensor and central processing unit
Signal is connected, and the one end of escape pipe 209 away from gas outlet, which is connected with denitration process case 5, denitration process case 5, is provided with catalyst carrier
501, catalyst carrier 501 is provided with SCR catalyst.
Specifically, the SCR catalyst for being catalyzed ammonia and reaction of nitrogen oxides is provided with catalyst carrier 501, is had
Vivo reaction type is as follows：NH3+NO2→N2+H2O,NH3+NO+O2→N2+H2O,NH3+NO2+NO→N2+H2O.First nitrogen oxides is passed
Sensor is used for the content for detecting nitrogen oxide in tail gas and the data of content is transferred into central processing unit, central processing unit according to
The data of nitrogen oxides send work order to urea nozzle 2091, and urea nozzle 2091 exports appropriate urea liquid, it is to avoid
Without the reaction of nitrogen oxides in sufficient ammonia and tail gas.
In the present embodiment, escape pipe 209 is provided with the first temperature sensor, the first temperature sensor and central processing unit
Signal is connected, and side of the denitration process case 5 away from escape pipe 209 is connected with blast pipe 502, and blast pipe 502 is provided with second temperature
Sensor and the second NOx sensor, second temperature sensor are connected with central processing unit signal, and the second nitrogen oxides is passed
Sensor is connected with central processing unit signal.
Embodiment two
The present embodiment and the difference of embodiment one are essentially consisted in：As shown in Fig. 2 the quantity in filtration treatment portion 2 is two, two
Axisymmetrical of the individual filtration treatment portion 2 along middle siphunculus 1 is set.Two filtration treatment portions 2 are set to improve the purification of processing equipment
Efficiency, while two filtration treatment portions 2 share a middle siphunculus 1, simplifies the structure of processing equipment.
" first ", " second ", " the 3rd ", " 4th " herein in description just for the sake of being distinguish between, not
Special implication.
Obviously, above-described embodiment of the present utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (7)
1. a kind of explosion-proof type diesel motor exhaust processing equipment, it is characterised in that including middle siphunculus, central processing unit and at least
One filtration treatment portion, it is curved that the filtration treatment portion includes particulate matter trap, catalytic oxidizing converter, the first bend pipe and second
Pipe, one end of first bend pipe is connected on the side wall of the middle siphunculus, the other end of first bend pipe and the catalysis oxygen
Change converter to be connected, side of the catalytic oxidizing converter away from first bend pipe is connected with the particulate matter trap,
Side of the particulate matter trap away from the catalytic oxidizing converter is connected with second bend pipe, and second bend pipe is remote
One end from the particulate matter trap is connected on the side wall of the middle siphunculus, and one end of the middle siphunculus is provided with air inlet, institute
The other end for stating middle siphunculus is provided with gas outlet, and the middle siphunculus is provided with butterfly valve, and the butterfly valve is located at first bend pipe and institute
Between the tie point for stating the second bend pipe and the middle siphunculus, the butterfly valve is provided with first connecting rod, one end of the first connecting rod
It is fixedly connected with the butterfly valve, the other end of the first connecting rod is connected with second connecting rod, and the first connecting rod connects with described second
Bar rotates connection, and the middle siphunculus is provided with cylinder, and the cylinder barrel of the cylinder is fixedly connected with the middle siphunculus, and described second connects
The one end of bar away from the first connecting rod is connected with the piston rod rotation of the cylinder, and pressure is provided with the particulate matter trap
Sensor, the pressure sensor is connected with the central processing unit signal, and the cylinder is electrically connected with the central processing unit.
2. tail gas treatment device according to claim 1, it is characterised in that the quantity in the filtration treatment portion is two,
Axisymmetrical of two filtration treatment portions along the middle siphunculus is set.
3. tail gas treatment device according to claim 1 or 2, it is characterised in that first bend pipe and the catalysis oxygen
First flange disk is provided between change converter, first bend pipe passes through the first flange disk and the catalytic oxidizing converter
It is connected, second flange disk, the catalysis oxidation conversion is provided between the catalytic oxidizing converter and the particulate matter trap
Device is connected by the second flange disk with the particulate matter trap, between the particulate matter trap and second bend pipe
Provided with the 3rd ring flange, the particulate matter trap is connected by the 3rd ring flange with second bend pipe.
4. tail gas treatment device according to claim 1 or 2, it is characterised in that the catalytic oxidizing converter is alloy
Or ceramic material, it is coated with noble metal catalyst, the particulate matter trap in the catalytic oxidizing converter and was provided with
Filter body, the filtering core is cylindrical shape, and the filtering core is by alloying metal filament winding system.
5. tail gas treatment device according to claim 1 or 2, it is characterised in that the air inlet is connected with air inlet pipe, described
The one end of air inlet pipe away from the air inlet is connected with silencer, and it is curved that the one end of the silencer away from the air inlet pipe is connected with the 3rd
Pipe, the described one end of 3rd bend pipe away from the silencer is connected with elastic bellows, and the elastic bellows are away from the described 3rd
One end of bend pipe is provided with the 4th ring flange.
6. tail gas treatment device according to claim 5, it is characterised in that the gas outlet is connected with escape pipe, it is described go out
Tracheae is provided with urea nozzle and the first NOx sensor, and the urea nozzle is connected with the central processing unit signal,
First NOx sensor is connected with the central processing unit signal, the one end of the escape pipe away from the gas outlet
It is connected with denitration process case, the denitration process case and is provided with catalyst carrier, the catalyst carrier is provided with SCR catalyst.
7. tail gas treatment device according to claim 6, it is characterised in that the escape pipe is provided with the first TEMP
Device, first temperature sensor is connected with the central processing unit signal, and the denitration process case is away from the escape pipe
Side is connected with blast pipe, and the blast pipe is provided with second temperature sensor and the second NOx sensor, second temperature
Degree sensor is connected with the central processing unit signal, and second NOx sensor connects with the central processing unit signal
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214103.7U CN206522182U (en) | 2017-03-06 | 2017-03-06 | Explosion-proof type diesel motor exhaust processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214103.7U CN206522182U (en) | 2017-03-06 | 2017-03-06 | Explosion-proof type diesel motor exhaust processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522182U true CN206522182U (en) | 2017-09-26 |
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ID=59902841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214103.7U Active CN206522182U (en) | 2017-03-06 | 2017-03-06 | Explosion-proof type diesel motor exhaust processing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN206522182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005790A (en) * | 2019-12-28 | 2020-04-14 | 广东绿谷环保科技有限公司 | SCR system |
| CN115370456A (en) * | 2022-09-29 | 2022-11-22 | 芜湖盈德智能科技有限公司 | Diesel engine tail gas aftertreatment ware |
-
2017
- 2017-03-06 CN CN201720214103.7U patent/CN206522182U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005790A (en) * | 2019-12-28 | 2020-04-14 | 广东绿谷环保科技有限公司 | SCR system |
| CN111005790B (en) * | 2019-12-28 | 2021-10-22 | 广东绿谷环保科技有限公司 | SCR system |
| CN115370456A (en) * | 2022-09-29 | 2022-11-22 | 芜湖盈德智能科技有限公司 | Diesel engine tail gas aftertreatment ware |
| CN115370456B (en) * | 2022-09-29 | 2023-05-16 | 芜湖盈德智能科技有限公司 | Diesel engine tail gas aftertreatment ware |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200528 Address after: No. 1308, unit 2, commercial office building, No. 5, Huixing commercial center, No. 18, Dongsheng Road, Zhongshandong community, Shilong Town, Dongguan City, Guangdong Province Patentee after: Guangdong Green Valley Environmental Protection Technology Co., Ltd Address before: 523000 Guangdong, Dongguan Songshan Lake high tech Industrial Development Zone, Nanshan Road, No. 1 chi chi Valley, building A205, No. 1 Patentee before: GUANGDONG LEEGOOL PURIFIER EQUIPMENT Co.,Ltd. |
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