CN207667856U - Multistage atomizing nozzle and multistage atomizing device - Google Patents
Multistage atomizing nozzle and multistage atomizing device Download PDFInfo
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- CN207667856U CN207667856U CN201721452476.4U CN201721452476U CN207667856U CN 207667856 U CN207667856 U CN 207667856U CN 201721452476 U CN201721452476 U CN 201721452476U CN 207667856 U CN207667856 U CN 207667856U
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- guide part
- multistage atomizing
- nozzle
- liquid inlet
- multistage
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Abstract
The utility model is related to field of environment protection equipment, in particular to multistage atomizing nozzle and multistage atomizing device；The device includes lance tube, spray gun interface and above-mentioned multistage atomizing nozzle, and one end of lance tube connects spray gun interface, and the other end connects multistage atomizing nozzle；Above-mentioned multistage atomizing nozzle includes liquid inlet part, nozzle body, guide part, hits reflecting disc and air cap, liquid inlet part is set to the top of nozzle body, guide part is set to the side wall of nozzle body, air cap is set to the bottom of nozzle body, hits reflecting disc and is set to air cap and the inside positioned at nozzle body；Multistage atomizing nozzle on the device can still keep preferable atomizing effect, and then can reduce the set amount of nozzle when liquid inventory is larger；And the multistage atomizing device can reduce system investments, reduce maintenance workload and compressed air consumption, can improve systematically reliability.
Description
Technical field
The utility model is related to field of environment protection equipment, in particular to multistage atomizing nozzle and multistage atomizing device.
Background technology
Selective catalytic reduction (SCR) denitration technology is widely used in coal-burning boiler, which uses ammonia as reduction
Agent, due to secure context, urea is pyrolyzed technique for production of ammonia and is widely used in SCR denitration system online.
According to ammonia demand size, urea pyrolysis system need to configure more conventional lance nozzles (such as：1-14 is only), this
Kind of conventional spout uses air atomizing technology, single nozzle only when urea liquid flow is smaller (such as：0.17m3/ h) it can reach
To preferable atomizing effect, when flow further increases, atomizing effect can deteriorate, and droplet particles will increase and cannot be satisfied technique
Demand.Since every spray gun (nozzle) is required for mating corresponding valve instrument and automatic flow control apparatus, work as nozzle number
When measuring more, it can so that system investments are big, compressed air consumption is big, and control is complicated, and Maintenance and Repair workload is also big.
Utility model content
The purpose of this utility model is to provide a kind of multistage atomizing nozzles, can be used for big flow spraying, instead of adopting
With more small flow wash nozzle, and then system investments can be reduced, reduce Maintenance and Repair work and compressed air consumption, improved
System reliability.
The another object of the utility model is to provide a kind of multistage atomizing device, and the multistage on the atomising device is arranged
Atomizer can still keep preferable atomizing effect, and then can reduce the set amount of nozzle when liquid inventory is larger,
The wash nozzle that more small flows are replaced with the multistage atomizing nozzle, can equally reach spray effect well；And this is more
Grade atomising device can reduce system investments, reduce maintenance workload and compressed air consumption, can improve systematically reliability.
What the embodiments of the present invention were realized in：
A kind of multistage atomizing nozzle comprising liquid inlet part, guide part, hits reflecting disc and air cap at nozzle body,
Liquid inlet part is set to the top of nozzle body, and guide part is set to the side wall of nozzle body, and air cap is set to nozzle sheet
The bottom of body hits reflecting disc and is set to air cap and the inside positioned at nozzle body.
In the utility model preferred embodiment：
Aforesaid liquid entrance member stretches into the inside of nozzle body, and the liquid outlet of liquid inlet part is located at leading for guide part
Into chamber, circular passage is formed between liquid inlet part and nozzle body.
In the utility model preferred embodiment：
The liquid inlet of aforesaid liquid entrance member is arranged at the axis of liquid inlet part with the liquid outlet of liquid inlet part
Line position.
In the utility model preferred embodiment：
The liquid outlet of aforesaid liquid entrance member is provided with multiple fluid holes.
In the utility model preferred embodiment：
Above-mentioned shock reflecting disc includes striking face, and striking face corresponds to the directed cavity of guide part.
In the utility model preferred embodiment：
Above-mentioned air cap is provided with multiple spray-holes, and the angle of the axis of spray-hole and the axis of air cap is 45-55 °.
In the utility model preferred embodiment：
Above-mentioned guide part includes sequentially connected first guide part, the second guide part and third guide part, the first guide part,
Second guide part and third guide part are corresponding in turn to the first directed cavity, the second directed cavity and third directed cavity, the first guide part
Internal diameter is more than the internal diameter of third guide part.
In the utility model preferred embodiment：
Internal diameter of above-mentioned second guide part close to first guide part one end is more than the second guide part close to third guide part
The internal diameter of one end.
A kind of multistage atomizing device comprising lance tube, spray gun interface and above-mentioned multistage atomizing nozzle, the one of lance tube
End connection spray gun interface, the other end connect multistage atomizing nozzle.
In the utility model preferred embodiment：
Further include mounting base, mounting base is set to the one end of lance tube far from spray gun interface, and multistage atomizing nozzle is set to
Mounting base.
The multistage atomizing nozzle of the utility model embodiment and the advantageous effect of multistage atomizing device are：The multistage atomizing fills
It sets and can be used in the atomisation of big flow solution, the multistage atomizing nozzle in the multistage atomizing device can be in liquid inventory
When larger, preferable atomizing effect is still kept, and then the set amount of nozzle can be reduced, i.e., is replaced with the multistage atomizing nozzle
The wash nozzle of more small flows can equally reach spray effect well；And the multistage atomizing device can reduce system
Investment reduces maintenance workload and compressed air consumption, can improve systematically reliability.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram one of the multistage atomizing nozzle of the utility model embodiment；
Fig. 2 is the structural schematic diagram two of the multistage atomizing nozzle of the utility model embodiment；
Fig. 3 is the structural schematic diagram of the multistage atomizing device of the utility model embodiment；
Fig. 4 is the enlarged drawing at IV in Fig. 3.
Icon：10- multistage atomizing nozzles；The liquid inlets 100- part；200- nozzle bodies；300- guide parts；400- is hit
Reflecting disc；500- air caps；110- stomatas；301- directed cavities；The liquid inlets 101-；102- liquid outlets；103- axis；104-
Fluid hole；401- striking faces；510- spray-holes；501- axis；502- axis；The first guide parts of 310-；The second guide parts of 320-；
330- third guide parts；The first directed cavities of 311-；The second directed cavities of 321-；331- third directed cavities；20- multistage atomizing devices；
600- lance tubes；The first lance tubes of 610-；The second lance tubes of 620-；700- spray gun interfaces；710- the first spray gun interfaces；720-
Two spray gun interfaces；800- mounting bases.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model embodiment, it should be noted that the orientation or position of the instructions such as term "inner", "outside"
Set relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation usually put
Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model
System.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively heavy
The property wanted.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, art
Language " setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.
Fig. 1 is please referred to, the present embodiment provides a kind of multistage atomizing nozzles 10 comprising liquid inlet part 100, nozzle body
200, guide part 300, shock reflecting disc 400 and air cap 500, the liquid inlet part 100 are set to the top of nozzle body 200
Portion, guide part 300 are set to the side wall of nozzle body 200, which, which can be used for introducing liquid inlet part 100, sprays
The solution of mouth ontology 200 is drained；Above-mentioned air cap 500 is set to the bottom of nozzle body 200, i.e. air cap 500 and liquid
Body entrance member 100 is located at 200 opposite end of nozzle body, and liquid inlet part 100 is located at solution and enters nozzle body 200
One end, air cap 500 are located at solution from one end that nozzle body 200 sprays；Above-mentioned shock reflecting disc 400 is set to air cap
500 and positioned at the inside of nozzle body 200, solution then passes through guiding after liquid inlet part 100 enters nozzle body 200
Part 300 guides, and can fall to shock reflecting disc 400, and after being collided with shock reflecting disc 400, be further decreased, refine.
Preferably, the top of said nozzle ontology 200 is provided with multiple stomatas 110, and stomata 110 can be disposed around liquid
Around body entrance member 100, and then can be to the internal ventilation of nozzle body 200, in order to have more in nozzle body 200
Solution inside air-flow cutting nozzles ontology 200.
Above-mentioned liquid inlet part 100 can stretch into the inside of nozzle body 200, and liquid from the top of nozzle body 200
The liquid outlet 102 of body entrance member 100 can be located in the directed cavity 301 of guide part 300, and ie in solution (such as urea liquid) can
To be directly sent in the directed cavity 301 of guide part 300 by liquid inlet part 100, to improve the efficiency and effect of solution atomization
Fruit.
Referring to Fig.1 and 2, liquid inlet part 100 and nozzle body 200 can form circular passage, solution is from liquid
After the liquid outlet 102 of entrance member 100 flows out, first time mist can be carried out by the annular air stream cutting in circular passage
Change.Preferably, the inner wall in nozzle body 200 can be provided with annular protrusion, which forms air flow lumen,
And the annular protrusion may include the first lug boss and the second lug boss, the first lug boss connects the second lug boss, the first protrusion
Portion close to nozzle body 200 top be arranged, the second boss in top of first lug boss far from nozzle body 200 one
Side；The opening of the corresponding air flow lumen of first lug boss is from one end close to the top of nozzle body 200 to far from nozzle sheet
The one end at the top of body 200 is gradually reduced, i.e., the side wall of the first lug boss from one end close to the top of nozzle body 200 far from
(inclination) is gradually collapsed in the one end at top to the direction of the axis 103 of liquid inlet part 100, and the side wall of the second lug boss can be with
The side wall of liquid inlet part 100 is arranged in parallel, and above-mentioned circular passage is between the second lug boss and liquid inlet part 100.
Further, the liquid inlet 101 of aforesaid liquid entrance member 100 can be arranged in the outside of nozzle body 200, and
Liquid inlet 101 and liquid outlet 102 can be arranged at the position of the axis 103 of liquid inlet part 100, i.e. liquid inlet part
100 liquid outlet 102 and liquid inlet 101 can be oppositely arranged on 100 both ends of liquid inlet part, so that solution can
Rapidly be sent to liquid outlet 102 from the liquid inlet of liquid inlet part 100 101, so improve solution atomizing effect and
Condensation rate reduces the waste of solution.
Still further, the liquid outlet 102 in liquid inlet part 100 is provided with multiple fluid holes 104, multiple fluid holes
104 can in advance be disperseed before solution enters circular passage by the cutting of annular air stream.In detail, above-mentioned fluid hole 104 can
The side wall in liquid inlet part 100 is arranged, and positioned at the position of the directed cavity 301 close to guide part 300, in order to annular
The drop of air stream cutting in channel rapidly falls into directed cavity 301, and is directed to the guiding of chamber 301 and extremely hits reflecting disc 400,
Carry out shock dispersion, tinyization.
Preferably, above-mentioned guide part 300 may include being sequentially connected the first guide part 310 of ground, 320 and of the second guide part
Third guide part 330, the first guide part 310, the second guide part 320 and third guide part 330 are corresponding in turn to the first directed cavity
311, the second directed cavity 321 and third directed cavity 331, and the one end of third directed cavity 331 far from the first guide part 310 is circle
Opening, the liquid outlet 102 of aforesaid liquid entrance member 100 can be located at above-mentioned first directed cavity 311.Further, it first leads
The internal diameter of third guide part 330 can be more than to the internal diameter in portion 310, the internal diameter of the second guide part 320 can be led from close to first
It is gradually reduced to 310 one end of portion to one end far from the first guide part 310, i.e., the second guide part 320 is close to the first guide part 310
The internal diameter of one end is more than internal diameter of second guide part 320 close to one end of third guide part 330.Setting is oriented in the manner described above
Part 300 can pass sequentially through the first directed cavity 311, the second directed cavity in directed cavity 301 of the solution by guide part 300
321 and third directed cavity 331；First directed cavity 311 is connected to circular passage, the inner width of the first directed cavity 311 compared with
Greatly, be conducive to solution to be cut by air-flow in circular passage, the sidewall slope setting of the second guide part 320 can be by drop court
Gather in third directed cavity 331, is hit in order to which drop is accurately knocked reflecting disc 400 by third directed cavity 331, in turn
Efficiently, second of atomization of the completion of high quality.
Aforementioned shock reflecting disc 400 includes striking face 401, and the striking face 401 is far from aforementioned air cap 500, i.e. the shock
Face 401 is arranged towards liquid inlet part 100, and the striking face 401 corresponds to the directed cavity 301 of guide part 300.Solution passes through liquid
Entrance member 100 enter nozzle body 200, and by guide part 300 guide into hit reflecting disc 400 striking face 401 carry out hit point
It dissipates, refinement, i.e. second of atomization；And striking face 401 corresponds to liquid inlet part 100 and the directed cavity 301 of guide part 300 is set
It sets, the efficiency and effect of second of atomization can be improved.
Above-mentioned air cap 500 is additionally provided with multiple spray-holes 510, and the spray-hole 510 is distributed in and hits reflecting disc 400
Around, spray-hole 510 can be used for ejecting the drop by second of atomization in nozzle body 200, and pass through
Spray-hole 510 is further atomized into more tiny particle, as third time be atomized, be conducive to urea liquid rapid evaporation and
It decomposes completely.
Further, please continue to refer to Fig. 1 and Fig. 2, the axis of the axis 501 and air cap 500 of each spray-hole 510
502 angle can be 45-55 °, can make solution in nozzle body 200 by evenly, fully by delivery nozzle at injection
Ontology 200, and keep the solution droplets ejected more tiny.
Please refer to Fig. 3, the utility model embodiment additionally provides a kind of multistage atomizing device 20 comprising lance tube 600,
Spray gun interface 700 and above-mentioned multistage atomizing nozzle 10, one end connection spray gun interface 700 of lance tube 600, other end connection is more
Grade atomizer 10, spray gun interface 700 can be passed through air and solution to lance tube 600, and air and solution pass through lance tube 600
Into multistage atomizing nozzle 10.
In detail, above-mentioned lance tube 600 includes the first lance tube 610 and the second lance tube 620, and the second lance tube 620 can
To be arranged in the inside of the first lance tube 610, and the first lance tube 610 can be used for conveying various gases and enter multistage atomizing spray
Mouth 10, the second lance tube 620 can be used for conveying solution.Further, above-mentioned spray gun interface 700 includes the first spray gun interface
710 and the second spray gun interface 720, the first spray gun interface 710 can be connected to above-mentioned first lance tube 610, the second spray gun interface 720
It can be connected to above-mentioned second lance tube 620, i.e. the first spray gun interface 710 can be used for various gases inputting the first lance tube
610, the second spray gun interface 720 can be used for solution inputting the second lance tube 620.Still further, above-mentioned first lance tube
The stomata 110 at 200 top of nozzle body of 610 connection multistage atomizing nozzles 10, the second lance tube 620 are connected to multistage atomizing nozzle
10 liquid inlet part 100.
Fig. 4 is please referred to, which can also include mounting base 800, and mounting base 800 is set to lance tube
600 one end far from spray gun interface 700, multistage atomizing nozzle 10 are set to mounting base 800.Multistage atomizing nozzle 10 can pass through
Fixed nut, multistage atomizing nozzle 10 and the junction of mounting base 800 are fixed, can also weld multistage atomizing nozzle 10
It is connected to mounting base 800, multistage atomizing nozzle 10 can also be connected to mounting base 800 by screw etc..
The operation principle of multistage atomizing device 20 is：It is logical by the first spray gun interface 710 and the second spray gun interface 720 respectively
Enter gas (such as：Compressed air) and solution (such as：Urea liquid) in the first lance tube 610 and the second lance tube 620, then
Enter multistage atomizing nozzle 10 by the first lance tube 610 and the second lance tube 620；In multistage atomizing nozzle 10, solution is logical
Liquid inlet part 100 is crossed to spray at a high speed, into inside nozzle body 200, and it is annular in the circular passage of nozzle body 200
Compressed air stream is cut into smaller drop and is mixed with air, that is, carries out first time atomization；Pass through guide part 300 and shock again
Reflecting disc 400 collides, and drop is further decreased, that is, carries out second and be atomized；Drop and sky are sprayed finally by spray-hole 510
The mixture of gas is sprayed at a high speed after being further atomized into more tiny drop by spray-hole 510, that is, completes third time mist
Change.The multistage atomizing device 20 can still keep preferable atomizing effect, and then can reduce spray when liquid inventory is larger
The set amount of mouth is replaced the wash nozzle of more small flows with the multistage atomizing nozzle 10, can equally reach and spray well
Effect；Such as：Flow reaches 1.6m3When/h, it still can ensure good atomizing effect.
In conclusion the multistage atomizing nozzle of the utility model and the advantageous effect of multistage atomizing device are：The multistage mist
Makeup, which is set, can be used in the atomisation of big flow solution, and the multistage atomizing nozzle in the multistage atomizing device can be in solution
When flow is larger, preferable atomizing effect is still kept, and then the set amount of nozzle can be reduced, i.e., with the multistage atomizing nozzle
Instead of the wash nozzle of more small flows, it can equally reach spray effect well；And the multistage atomizing device can reduce
System investments reduce maintenance workload and compressed air consumption, can improve systematically reliability.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of multistage atomizing nozzle, which is characterized in that including liquid inlet part, nozzle body, guide part, hit reflecting disc and
Air cap, the liquid inlet part are set to the top of the nozzle body, and the guide part is set to the nozzle body
Side wall, the air cap are set to the bottom of the nozzle body, and the shock reflecting disc is set to the air cap and is located at
The inside of the nozzle body.
2. multistage atomizing nozzle according to claim 1, which is characterized in that the liquid inlet part stretches into the nozzle sheet
The inside of body, and the liquid outlet of the liquid inlet part is located in the directed cavity of the guide part, the liquid inlet part with
Circular passage is formed between the nozzle body.
3. multistage atomizing nozzle according to claim 1, which is characterized in that the liquid inlet of the liquid inlet part and institute
The liquid outlet for stating liquid inlet part is arranged at the axial location of the liquid inlet part.
4. multistage atomizing nozzle according to claim 1, which is characterized in that the liquid outlet of the liquid inlet part is arranged
There are multiple fluid holes.
5. multistage atomizing nozzle according to claim 1, which is characterized in that the shock reflecting disc includes striking face, institute
State the directed cavity that striking face corresponds to the guide part.
6. multistage atomizing nozzle according to claim 1, which is characterized in that the air cap is provided with multiple spray-holes,
The axis of the spray-hole and the angle of the axis of the air cap are 45-55 °.
7. multistage atomizing nozzle according to claim 1, which is characterized in that the guide part includes sequentially connected first
Guide part, the second guide part and third guide part, first guide part, the second guide part and third guide part are corresponding in turn to
One directed cavity, the second directed cavity and third directed cavity, the internal diameter of first guide part are more than the internal diameter of the third guide part.
8. multistage atomizing nozzle according to claim 7, which is characterized in that second guide part is led close to described first
It is more than the internal diameter of one end of the close third guide part of second guide part to the internal diameter of portion one end.
9. a kind of multistage atomizing device, which is characterized in that described in lance tube, spray gun interface and claim any one of 1-8
Multistage atomizing nozzle, one end of the lance tube connects the spray gun interface, and the other end connects the multistage atomizing nozzle.
10. multistage atomizing device according to claim 9, which is characterized in that further include mounting base, the mounting base setting
In the one end of the lance tube far from the spray gun interface, the multistage atomizing nozzle is set to the mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721452476.4U CN207667856U (en) | 2017-10-31 | 2017-10-31 | Multistage atomizing nozzle and multistage atomizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721452476.4U CN207667856U (en) | 2017-10-31 | 2017-10-31 | Multistage atomizing nozzle and multistage atomizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207667856U true CN207667856U (en) | 2018-07-31 |
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ID=62963762
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721452476.4U Active CN207667856U (en) | 2017-10-31 | 2017-10-31 | Multistage atomizing nozzle and multistage atomizing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396454A (en) * | 2018-12-24 | 2019-03-01 | 南通金源智能技术有限公司 | A kind of 3D printing twin-stage aerosolization nozzle |
| CN110237952A (en) * | 2019-05-23 | 2019-09-17 | 昌乐神睿农业智能设备有限公司 | Three-level atomizer |
| CN116673145A (en) * | 2023-07-28 | 2023-09-01 | 张家港市晨艺电子有限公司 | Atomizing nozzle for spraying robot |
-
2017
- 2017-10-31 CN CN201721452476.4U patent/CN207667856U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396454A (en) * | 2018-12-24 | 2019-03-01 | 南通金源智能技术有限公司 | A kind of 3D printing twin-stage aerosolization nozzle |
| CN110237952A (en) * | 2019-05-23 | 2019-09-17 | 昌乐神睿农业智能设备有限公司 | Three-level atomizer |
| CN110237952B (en) * | 2019-05-23 | 2023-07-28 | 潍坊生命方舟生物技术有限公司 | Three-stage atomizing spray head |
| CN116673145A (en) * | 2023-07-28 | 2023-09-01 | 张家港市晨艺电子有限公司 | Atomizing nozzle for spraying robot |
| CN116673145B (en) * | 2023-07-28 | 2023-10-31 | 张家港市晨艺电子有限公司 | Atomizing nozzle for spraying robot |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430000 No.2 Xingfu 1st Road, Wushu village, Miaoshan, Jiangxia District, Wuhan City, Hubei Province Patentee after: GREATALL POWER Co.,Ltd. Address before: 430000 No.2 Xingfu 1st Road, Wushu village, Miaoshan, Jiangxia District, Wuhan City, Hubei Province Patentee before: WUHAN GREATALL MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |