CN206944211U - Fume afterheat utilizes energy-efficient electric dust removing system - Google Patents
Fume afterheat utilizes energy-efficient electric dust removing system Download PDFInfo
- Publication number
- CN206944211U CN206944211U CN201720478755.1U CN201720478755U CN206944211U CN 206944211 U CN206944211 U CN 206944211U CN 201720478755 U CN201720478755 U CN 201720478755U CN 206944211 U CN206944211 U CN 206944211U
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- CN
- China
- Prior art keywords
- cooling water
- dust removing
- removing system
- fume afterheat
- electric dust
- 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.)
- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 70
- 239000003517 fume Substances 0.000 title claims abstract description 60
- 239000000498 cooling water Substances 0.000 claims abstract description 96
- 239000007789 gas Substances 0.000 claims abstract description 81
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003546 flue gas Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000013459 approach Methods 0.000 claims abstract description 25
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Electrostatic Separation (AREA)
Abstract
The utility model provides a kind of fume afterheat and utilizes energy-efficient electric dust removing system, including electric cleaner, flue gas heat-exchange unit, cooling water inlet pipe road and cooling water outlet pipe road, second gas approach of flue gas heat-exchange unit passes sequentially through the first exhanst gas outlet that the second exhanst gas outlet of flue gas heat-exchange unit connects electric cleaner with the first gas approach gas circuit of electric cleaner, and cooling water inlet pipe road passes sequentially through the cooling water inlet of flue gas heat-exchange unit and connects cooling water outlet pipe road with the coolant outlet pipeline of flue gas heat-exchange unit.It is preferred that also include steam turbine, the condensation water outlet line connection cooling water inlet pipe road of steam turbine.Also include low-pressure heater, cooling water outlet pipe road pipeline connects the water inlet of low-pressure heater.Fume afterheat of the present utility model can effectively utilize fume afterheat using energy-efficient electric dust removing system, and avoid having a negative impact to electric cleaner, ensure efficiency of dust collection, ingenious in design, simple for structure, be simple to manufacture, suitable for large-scale promotion application.
Description
Technical field
Electric dust removing system technical field is the utility model is related to, more particularly to energy-efficient electric dust removing system technical field,
Specifically refer to a kind of fume afterheat and utilize energy-efficient electric dust removing system.
Background technology
With the further development of economic construction, supply of electric power demand gap is still very big, at the same country strengthen closing down it is small
The behave of coal pit, the nervous situation of electricity coal supply is exacerbated, it is energy-saving into current extremely urgent behave.
The exhaust gas temperature in many power stations in China is all higher than design load at present, especially in CFBB application scenario,
Its exhaust gas temperature is even higher by 20 DEG C~50 DEG C than design temperature, and flue gas heat loss is serious, furthermore flue-gas temperature height is to electric precipitation
Device produces following detrimental effect：
1st, exhaust gas temperature raises, and increases exhaust gas volumn, and field gas velocity improves, and flue gas shortens through the electric field treatment time, simultaneously
Aggravate reentrainment of dust, efficiency of dust collection declines exponent function relation.
2nd, exhaust gas temperature raises, and declines electric field breakdown voltage, and efficiency of dust collection declines；Flue-gas temperature height can make dust resistance
Than increase, inverse corona scene is formed, has caused efficiency of dust collection to decline.
3rd, high-temperature flue gas can bring harm to deduster.Especially endangered in bag-type dust bigger.
Accordingly, it is desirable to provide a kind of fume afterheat utilizes energy-efficient electric dust removing system, it can be effectively utilized more than flue gas
Heat, and avoid having a negative impact to electric cleaner, ensure efficiency of dust collection.
Utility model content
In order to overcome it is above-mentioned in the prior art the shortcomings that, a purpose of the present utility model is to provide a kind of fume afterheat
Using energy-efficient electric dust removing system, it can effectively utilize fume afterheat, and avoid having a negative impact to electric cleaner, protect
Efficiency of dust collection is demonstrate,proved, suitable for large-scale promotion application.
Another object of the present utility model is that providing a kind of fume afterheat utilizes energy-efficient electric dust removing system, and it is designed
It is ingenious, it is simple for structure, it is simple to manufacture, suitable for large-scale promotion application.
To achieve the above objectives, fume afterheat of the present utility model utilizes energy-efficient electric dust removing system, including electric precipitation
Device, the electric cleaner have the first gas approach and the first exhanst gas outlet, the first gas approach gas circuit connection described the
One exhanst gas outlet, is characterized in, the fume afterheat also includes flue gas heat-exchange unit, cooling water using energy-efficient electric dust removing system
There is the second gas approach, the second exhanst gas outlet, cooling water to enter for inlet channel and cooling water outlet pipe road, the flue gas heat-exchange unit
Mouth and coolant outlet, the second gas approach gas circuit connect second exhanst gas outlet, the second exhanst gas outlet gas circuit
First gas approach is connected, the cooling water inlet pipeline connects the coolant outlet, the cooling water inlet pipe road
Pipeline connects the cooling water inlet, and cooling water outlet pipe road pipeline connects the coolant outlet.
It is preferred that the fume afterheat also includes steam turbine using energy-efficient electric dust removing system, the steam turbine has
Water out is condensed, the condensation water outlet line connects the cooling water inlet pipe road.
It is preferred that the fume afterheat also includes condensate pump, the condensate pump using energy-efficient electric dust removing system
Pipeline connects the cooling water inlet pipe road.
It is preferred that the fume afterheat also includes gland heater using energy-efficient electric dust removing system, the axle envelope adds
Hot device pipeline connects the cooling water inlet pipe road.
It is preferred that the fume afterheat also includes the first steam valve, first steam valve using energy-efficient electric dust removing system
It is used for cooling water inlet pipe road described in break-make in the cooling water inlet pipe road.
It is preferred that the fume afterheat also includes low-pressure heater using energy-efficient electric dust removing system, the low pressure adds
Hot utensil has water inlet and delivery port, and cooling water outlet pipe road pipeline connects the water inlet.
More preferably, the fume afterheat also includes oxygen-eliminating device, the water outlet pipeline using energy-efficient electric dust removing system
Connect the oxygen-eliminating device.
It is preferred that the fume afterheat also includes the second steam valve, second steam valve using energy-efficient electric dust removing system
It is used for cooling water outlet pipe road described in break-make in the cooling water outlet pipe road.
It is preferred that the fume afterheat also includes connecting pipe, the connecting pipe using energy-efficient electric dust removing system
Outside the flue gas heat-exchange unit and difference pipeline connects the cooling water inlet pipe road and the cooling water outlet pipe road.
More preferably, the fume afterheat also includes the 3rd steam valve, the 3rd steam valve using energy-efficient electric dust removing system
It is used for connecting pipe described in break-make in the connecting pipe.
The beneficial effects of the utility model essentially consist in：
1st, fume afterheat of the present utility model using energy-efficient electric dust removing system include electric cleaner, flue gas heat-exchange unit,
Cooling water inlet pipe road and cooling water outlet pipe road, electric cleaner have the first gas approach and the first exhanst gas outlet, the first cigarette
Gas airway connects the first exhanst gas outlet, and flue gas heat-exchange unit has the second gas approach, the second exhanst gas outlet, cooling water inlet
And coolant outlet, the second gas approach gas circuit connect the second exhanst gas outlet, the second exhanst gas outlet gas circuit connects the first flue gas and entered
Mouthful, cooling water inlet pipeline connection coolant outlet, cooling water inlet pipe road pipeline connection cooling water inlet, cooling water outlet pipe
Road pipeline connection coolant outlet, so, the water of any required temperature is can be used for flue gas heat exchange and the cooling water that heats up
Place, while with cooling water exchange heat and cool flue gas will not also have a negative impact to electric cleaner, therefore, it can have
Effect utilizes fume afterheat, and avoids having a negative impact to electric cleaner, ensures efficiency of dust collection, suitable for large-scale promotion application.
2nd, fume afterheat of the present utility model using energy-efficient electric dust removing system include electric cleaner, flue gas heat-exchange unit,
Cooling water inlet pipe road and cooling water outlet pipe road, electric cleaner have the first gas approach and the first exhanst gas outlet, the first cigarette
Gas airway connects the first exhanst gas outlet, and flue gas heat-exchange unit has the second gas approach, the second exhanst gas outlet, cooling water inlet
And coolant outlet, the second gas approach gas circuit connect the second exhanst gas outlet, the second exhanst gas outlet gas circuit connects the first flue gas and entered
Mouthful, cooling water inlet pipeline connection coolant outlet, cooling water inlet pipe road pipeline connection cooling water inlet, cooling water outlet pipe
Road pipeline connection coolant outlet, therefore, its is ingenious in design, simple for structure, is simple to manufacture, suitable for large-scale promotion application.
These and other objects, feature and advantage of the present utility model, by following detailed descriptions, accompanying drawing and right will
Try to achieve to fully demonstrate, and can be achieved by means, device and the combinations thereof specially pointed out in appended claims.
Brief description of the drawings
Fig. 1 is that fume afterheat of the present utility model is shown using the structure of a specific embodiment of energy-efficient electric dust removing system
It is intended to, filled arrows represent condensate flow direction, and hollow arrow represents flow of flue gas direction.
(symbol description)
1 electric cleaner；11 first gas approach；12 first exhanst gas outlets；2 flue gas heat-exchange units；21 second gas approach；22
Second exhanst gas outlet；23 cooling water inlets；24 coolant outlets；3 cooling water inlet pipe roads；31 first steam valves；4 cooling water water outlets
Pipeline；41 second steam valves；5 steam turbines；51 condense water out；6 condensate pumps；7 gland heaters；8 low-pressure heaters；81 water inlets
Mouthful；82 delivery ports；9 oxygen-eliminating devices；10 connecting pipes；20 the 3rd steam valves.
Embodiment
In order to be more clearly understood that technology contents of the present utility model, described in detail especially exemplified by following examples.
Shown in Figure 1, in a specific embodiment of the present utility model, fume afterheat of the present utility model utilizes height
Effect energy-conservation electric dust removing system includes electric cleaner 1, flue gas heat-exchange unit 2, cooling water inlet pipe road 3 and cooling water outlet pipe road 4, institute
Stating electric cleaner 1 has the first gas approach 11 and the first exhanst gas outlet 12, described in the gas circuit of the first gas approach 11 connection
First exhanst gas outlet 12, the flue gas heat-exchange unit 2 have the second gas approach 21, the second exhanst gas outlet 22, cooling water inlet 23
With coolant outlet 24, the gas circuit of the second gas approach 21 connects second exhanst gas outlet 22, second exhanst gas outlet
22 gas circuits connect first gas approach 11, and the pipeline of cooling water inlet 23 connects the coolant outlet 24, described cold
But the pipeline of water inlet channel 3 connects the cooling water inlet 23, and the pipeline of cooling water outlet pipe road 4 connects the cooling water and gone out
Mouth 24.
The cooling water flowed during use in cooling water inlet pipe road 3 can be any suitable cooling water, refer to Fig. 1
Shown, in a specific embodiment of the present utility model, the fume afterheat also includes vapour using energy-efficient electric dust removing system
Turbine 5, the steam turbine 5, which has, condenses water out 51, and condensation water out 51 pipeline connects the cooling water inlet pipe road
3.That is, the cooling water is steam turbine condensate.
The cooling water can be conveyed by any suitable device, it is preferred that the fume afterheat is using efficiently
Energy-conservation electric dust removing system also includes condensate pump 6, and the pipeline of condensate pump 6 connects the cooling water inlet pipe road 3.Refer to
Shown in Fig. 1, in a specific embodiment of the present utility model, also wrapped using energy-efficient electric dust removing system in the fume afterheat
In the case of including steam turbine 5, the pipeline of condensation water out 51 of the steam turbine 5 connects the condensate pump 6.
The cooling water can carry out any suitable processing in advance, it is preferred that the fume afterheat is using energy-efficient
Electric dust removing system also includes gland heater 7, and the pipeline of gland heater 7 connects the cooling water inlet pipe road 3, that is,
Say, the cooling water is introduced into gland heater 7 and heated.It is shown in Figure 1, in of the present utility model one specific implementation
In example, in the case where the fume afterheat also includes condensate pump 6 using energy-efficient electric dust removing system, the condensate pump
6 pipelines connect the gland heater 7.
It is shown in Figure 1 in order to carry out on-off valve regulation to the cooling water inlet pipe road 3, of the present utility model one
In specific embodiment, the fume afterheat also includes the first steam valve 31, first steam valve using energy-efficient electric dust removing system
31 are used for cooling water inlet pipe road 3 described in break-make in the cooling water inlet pipe road 3.
It is shown in Figure 1 in order to further heat cooling water, it is described in a specific embodiment of the present utility model
Fume afterheat also includes low-pressure heater 8 using energy-efficient electric dust removing system, and the low-pressure heater 8 has the He of water inlet 81
Delivery port 82, the pipeline of cooling water outlet pipe road 4 connect the water inlet 81.
The cooling water come out from the delivery port 82 of the low-pressure heater 8 can further carry out it is any it is suitable from
Reason, shown in Figure 1, in a specific embodiment of the present utility model, the fume afterheat utilizes energy-efficient electric precipitation
System also includes oxygen-eliminating device 9, and the pipeline of delivery port 82 connects the oxygen-eliminating device 9.Cooling water after deoxygenation can be mended to boiler
Water.
It is shown in Figure 1 in order to carry out on-off valve regulation to the cooling water outlet pipe road 4, of the present utility model one
In specific embodiment, the fume afterheat also includes the second steam valve 41, second steam valve using energy-efficient electric dust removing system
41 are used for cooling water outlet pipe road 4 described in break-make in the cooling water outlet pipe road 4.
It is shown in Figure 1 in order to which in 2 failure of flue gas heat-exchange unit, cooling water can flow through other pipelines, in this practicality
In a new specific embodiment, the fume afterheat also includes connecting pipe 10 using energy-efficient electric dust removing system, described
Connecting pipe 10 is located at outside the flue gas heat-exchange unit 2 and pipeline connects the cooling water inlet pipe road 3 and the cooling water respectively
Outlet conduit 4.
The connecting pipe 10 can connect any suitable equipment, shown in Figure 1, in of the present utility model one tool
In body embodiment, also include gland heater 7 and low-pressure heater 8 using energy-efficient electric dust removing system in the fume afterheat
In the case of, the gland heater 7 connects the water inlet of the low-pressure heater 8 by the pipeline of connecting pipe 10
81。
It is shown in Figure 1 in order to carry out on-off valve regulation to the connecting pipe 10, it is specific real of the present utility model one
Apply in example, the fume afterheat also includes the 3rd steam valve 20 using energy-efficient electric dust removing system, and the 3rd steam valve 20 is installed
It is used for connecting pipe 10 described in break-make in the connecting pipe 10.
In use, the condensate come out from the condensation water out 51 of steam turbine 5 is delivered to gland heater through condensate pump 6
7 heating, then enter flue gas heat-exchange unit 2 from cooling water inlet 23 through cooling water inlet pipe road 3, with the from flue gas heat-exchange unit 2
The flue gas that two gas approach 21 enter is exchanged heat, and the cooling water after heat exchange comes out from coolant outlet 24, through cooling water water outlet
Pipeline 4 heats from the water inlet 81 of low-pressure heater 8 into low-pressure heater 8, and the cooling water after heating is from low-pressure heater 8
Delivery port 82 comes out, and is delivered to the deoxygenation of oxygen-eliminating device 9；Flue gas after heat exchange enters out and from the first flue gas from the second exhanst gas outlet 22
Mouth 11 enters the dedusting of electric cleaner 1, and the flue gas after dedusting is discharged from the first exhanst gas outlet 12.
Therefore, energy-efficient electric dust removing system is utilized using fume afterheat of the present utility model, by the way that steam turbine is condensed
Cooling water of the water as flue gas heat-exchange unit, after steam turbine condensate is by flue gas heat-exchange unit, one side water temperature improves, and reduces
The throttle flow of low-pressure heater, improve the acting ability of steam turbine；On the other hand exhaust gas temperature is reduced, reduces boiler exhaust gas
Heat loss, the efficiency of dust collection of deduster is ensure that while improving boiler efficiency.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model saves coal consumption.
(2) the utility model saves electric cleaner power consumption.
(3) air-introduced machine power consumption is saved.
The utility model with can not only realize power saving consumption of coal but also may further ensure that realize low emission environmental protection and warp
Ji benefit, particularly with CFBB high temperature cigarette temperature operating mode, has stronger specific aim.
To sum up, fume afterheat of the present utility model can effectively utilize fume afterheat using energy-efficient electric dust removing system,
And avoid having a negative impact to electric cleaner, ensure efficiency of dust collection, it is ingenious in design, it is simple for structure, it is simple to manufacture, suitable for big rule
Mould popularization and application.
As can be seen here, the purpose of this utility model is achieved completely and effectively.Function of the present utility model and
Structural principle is shown and illustrated in embodiment, and under without departing substantially from the principle, embodiment can make any modification.Institute
So that the utility model includes all variant embodiments based on claim spirit and right.
Claims (10)
1. a kind of fume afterheat utilizes energy-efficient electric dust removing system, including electric cleaner, the electric cleaner has the first cigarette
Gas import and the first exhanst gas outlet, the first gas approach gas circuit connect first exhanst gas outlet, it is characterised in that described
Fume afterheat also includes flue gas heat-exchange unit, cooling water inlet pipe road and cooling water outlet pipe using energy-efficient electric dust removing system
Road, the flue gas heat-exchange unit have the second gas approach, the second exhanst gas outlet, cooling water inlet and a coolant outlet, and described
Two gas approach gas circuits connect second exhanst gas outlet, and the second exhanst gas outlet gas circuit connects first gas approach,
The cooling water inlet pipeline connects the coolant outlet, and cooling water inlet pipe road pipeline connects the cooling water and entered
Mouthful, cooling water outlet pipe road pipeline connects the coolant outlet.
2. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include steam turbine using energy-efficient electric dust removing system, the steam turbine, which has, condenses water out, the condensation water outlet pipe
Road connects the cooling water inlet pipe road.
3. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include condensate pump using energy-efficient electric dust removing system, the condensate pump pipeline connects the cooling water inlet pipe road.
4. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include gland heater using energy-efficient electric dust removing system, the gland heater pipeline connects the cooling water inlet pipe
Road.
5. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include the first steam valve using energy-efficient electric dust removing system, first steam valve is arranged in the cooling water inlet pipe road and used
In cooling water inlet pipe road described in break-make.
6. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include low-pressure heater using energy-efficient electric dust removing system, the low-pressure heater has water inlet and delivery port, described
Cooling water outlet pipe road pipeline connects the water inlet.
7. fume afterheat as claimed in claim 6 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include oxygen-eliminating device using energy-efficient electric dust removing system, the water outlet pipeline connects the oxygen-eliminating device.
8. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include the second steam valve using energy-efficient electric dust removing system, second steam valve is arranged in the cooling water outlet pipe road and used
In cooling water outlet pipe road described in break-make.
9. fume afterheat as claimed in claim 1 utilizes energy-efficient electric dust removing system, it is characterised in that the fume afterheat
Also include connecting pipe using energy-efficient electric dust removing system, the connecting pipe is located at outside the flue gas heat-exchange unit and managed respectively
Road connects the cooling water inlet pipe road and the cooling water outlet pipe road.
10. fume afterheat as claimed in claim 9 utilizes energy-efficient electric dust removing system, it is characterised in that more than the flue gas
The energy-efficient electric dust removing system of heat utilization also includes the 3rd steam valve, and the 3rd steam valve, which is arranged in the connecting pipe, to be used to lead to
Break the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478755.1U CN206944211U (en) | 2017-05-03 | 2017-05-03 | Fume afterheat utilizes energy-efficient electric dust removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478755.1U CN206944211U (en) | 2017-05-03 | 2017-05-03 | Fume afterheat utilizes energy-efficient electric dust removing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206944211U true CN206944211U (en) | 2018-01-30 |
Family
ID=61360016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478755.1U Expired - Fee Related CN206944211U (en) | 2017-05-03 | 2017-05-03 | Fume afterheat utilizes energy-efficient electric dust removing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206944211U (en) |
-
2017
- 2017-05-03 CN CN201720478755.1U patent/CN206944211U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 |