CN206018631U - Test burner oil gas integral type igniter head - Google Patents
Test burner oil gas integral type igniter head Download PDFInfo
- Publication number
- CN206018631U CN206018631U CN201620997672.9U CN201620997672U CN206018631U CN 206018631 U CN206018631 U CN 206018631U CN 201620997672 U CN201620997672 U CN 201620997672U CN 206018631 U CN206018631 U CN 206018631U
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- integral type
- oil
- shower nozzle
- oil gas
- pipe
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Abstract
This utility model is a kind of test burner oil gas integral type igniter head, and including hurricane globe, one end of hurricane globe is provided with Venturi tube, and the other end sealing of Venturi tube is communicated with air intake pipe；The throat of Venturi tube is arranged the oil gas integral type shower nozzle that the inside of oriented air intake pipe is extended, and the center of one end of oil gas integral type shower nozzle is provided with fuel oil spray orifice, and the radial outside of fuel oil spray orifice arranges circumferentially uniform multiple gas jet orifices；The other end of air intake pipe extends internally and is provided with oil gun pipe, air gun pipe is arranged with the outside of oil gun pipe, and oil gun pipe is connected with the sealing of fuel oil spray orifice, and air gun pipe is connected with gas jet orifice sealing, the other end of oil gun pipe is provided with fuel filler, and the other end of air gun pipe is provided with fuel gas inlet.The test burner oil gas integral type igniter head, can strengthen the advantage of oil gas joint igniting, simplify the structure design of igniter head, provide sound assurance for testing the steady operation of burner.
Description
Technical field
This utility model is related to petroleum works oil and gas well testing apparatus field, more particularly to a kind of test burner oil gas one
Body formula igniter head.
Background technology
Limited by process conditions during oil and gas well testing, crude oil can not be stored in a large number and be transported by other means, special
It is not that high-hydrogen sulfide produces liquid, it is necessary to carry out burn processing by testing burner, meet without oil dripping, smoke dust, safety and environmental protection
Deng the requirement of clean combustion, this also requires that burner ignition head keeps stable ever-burning flame.But test burner ignition head is in reality
In the work of border, often there is the unstable failure of igniting：Not enough, protection effect is poor for flame rigidity, is affected to occur by ambient wind velocity
Flame-out phenomenon；Due to high-heating radiation, ignitor and main body are burned；High voltage pulse is lighted a fire, and transformer damage cannot be lighted a fire；Bavin
The blocking of oil drop fire-fighting nozzle aperture little Yi and coking, cause to be atomized insufficient, it is impossible to light；Single-fuel limits scene expansion should
With；Atomizing effect is bad, sometimes over-emitting black exhaust；Flame dispersion, flame isolation cover or the easy scaling loss of hurricane globe.These problems are all suppressions
The successful main cause of system test burner ignition head igniting, governs the normal development of oil and gas well testing technique.
General oil and gas well testing test burner ignition mode is divided into manual ignition and automatic ignition.Manual ignition one
As need the hand-held torch of workman burner tip bocca light atomization after fuel oil.Because the success rate of this sparking mode
Relatively low and be frequently necessary to repeatedly light torch while danger is higher, operate extremely inconvenient.The burner ignition in each field
Capitiform formula is based on automatic ignition.According to the difference of fuel, automatic ignition is divided into automatic gas igniting and automatic oil burning
Igniting.Liquefied Petroleum Gas based Ignition Device belongs to automatic gas ignition system, and which adopts forced per-mixing combustion system, and liquefied gas is used as point
Burning things which may cause a fire disaster.The advantage that combustion gas is lighted is needed for gas ignition that energy is less, less demanding to ignition device, but liquefied gas calorific value compared with
Low, when fuel volatility can be poor, fuel atomization is low, under the excessively high unfavorable conditions of ambient wind velocity, when have and can not light
Phenomenon occurs.By lighting fuel oil and then pilot fuel, which it is critical only that lighting and supplying for fuel oil to automatic oil burning ignition system.
The success rate that fuel oil is lighted depends primarily on the atomizing effect of fuel oil and lights the burning things which may cause a fire disaster of fuel oil.Wherein fuel-oil atmozation particle diameter is big
The mixability of fuel droplet and air after little and atomization determines evaporation and the ignition procedures of mist of oil.
The working environment of double based propellant device is open space, and which is often subjected to the impact of extraneous wind load after lighting,
The sustained combustion of flame and rigidity requirement are all very high, if flame velocity is relatively low, flame is easily put out by ambient wind.Cause
How this, based on Theory of Combustion, improve igniter head fuel combustion speed, improve the mixed performance of fuel and air, improve flame
It is also the important foundation for ensureing its works fine that rigidity further improves wind loading rating.There is provided double fuel structure simultaneously, also can achieve
Transmission igniting under low ignition energy condition, expands the adaptability of live application.
Thus, the present inventor proposes a kind of test burner oil gas by experience and the practice for being engaged in relevant industries for many years
Integral type igniter head, to meet the igniting demand of lighter.
Utility model content
The purpose of this utility model is to provide a kind of test burner oil gas integral type igniter head, overcomes existing igniter head
The problem that unstable, igniter head fuel combustion speed is slow, fuel supply is unstable of lighting a fire of presence, the test burner oil gas one
Body formula igniter head can strengthen the advantage of oil gas joint igniting, simplify the structure design of igniter head, be to test stablizing for burner
Work provides sound assurance.
Another object of the present utility model is to provide a kind of test burner oil gas integral type igniter head, the test burning
Device oil gas integral type igniter head enhances the mixing of fuel oil and air, aggravates the shearing of fuel gas injection and air, and overheavy firing increases
Strong flame rigidity.
The purpose of this utility model is achieved in that a kind of test burner oil gas integral type igniter head, the test
Burner oil gas integral type igniter head includes that the hurricane globe of both ends open, one end of the hurricane globe are provided with directly radially away from institute
The Venturi tube that the direction of hurricane globe is reduced is stated, the other end sealing of the Venturi tube is communicated with air intake pipe；The text
The throat of venturi is arranged the oil gas integral type shower nozzle that the inside of the oriented air intake pipe is extended, the oil gas one
Formula shower nozzle points to the inside of the Venturi tube, and the center of one end of the oil gas integral type shower nozzle is provided with fuel oil spray orifice,
The radial outside of the fuel oil spray orifice arranges circumferentially uniform multiple gas jet orifices；The other end of the air intake pipe is inside
Being extended has oil gun pipe, is arranged with the air gun pipe being isolated with the oil gun pipe, the oil gun pipe on the outside of the oil gun pipe
It is fixedly connected with the oil gas integral type shower nozzle and connects with fuel oil spray orifice sealing, the air gun pipe and the oil gas one
Body formula shower nozzle is fixedly connected and is connected with gas jet orifice sealing, and the other end of the oil gun pipe is provided with fuel filler, institute
The other end for stating air gun pipe is provided with fuel gas inlet.
In a better embodiment of the present utility model, the oil gas integral type shower nozzle includes and the oil gun seal of tube
The shower nozzle inner tube of connection, the outside of the shower nozzle inner tube is coaxial and is spaced and is arranged with outside the shower nozzle being connected with the air gun seal of tube
Pipe, the shower nozzle inner tube and the shower nozzle outer tube are tightly connected to form shower nozzle end cap near one end of the Venturi tube, described
The center of shower nozzle end cap arranges the fuel oil spray orifice, and the radial outside of the fuel oil spray orifice arranges the gas jet orifice, described
Shower nozzle inner tube is connected with the fuel oil spray orifice, and the shower nozzle outer tube is connected with the gas jet orifice.
In a better embodiment of the present utility model, the center of the shower nozzle end cap is provided with and one or more is in
The fuel oil spray orifice of circumference uniform distribution, the radial outside of the fuel oil spray orifice arrange multiple circumferentially uniform gas injections
Hole.
In a better embodiment of the present utility model, the quantity of the fuel oil spray orifice is 1～6, the gas injection
The quantity in hole is 3～10.
In a better embodiment of the present utility model, it is provided with the side wall of the shower nozzle outer tube equally distributed many
Individual combustion gas auxiliary spray hole, the quantity of the combustion gas auxiliary spray hole is 3～10.
In a better embodiment of the present utility model, the hurricane globe is the netty circular tube knot for opening up through hole on the wall of side
Structure, the air intake pipe are the netty circular tube structure for opening up through hole on the wall of side.
In a better embodiment of the present utility model, the outside diameter of the hurricane globe is the external diameter of the air gun pipe
1.5～5 times, the distance of the free end of the free end to the hurricane globe of the oil gas integral type shower nozzle is the hurricane globe
2.5～3.5 times of outside diameter.
In a better embodiment of the present utility model, the diameter of bore of the air intake pipe is the hurricane globe
1～2 times of outside diameter, the distance of the free end of the free end to the air intake pipe of the hurricane globe is the oil gas one
2～3 times of the distance of the free end of the free end of body formula shower nozzle to the hurricane globe.
In a better embodiment of the present utility model, the end that the Venturi tube is connected with the air intake pipe
Diameter of bore be 1.05～1.5 times of external diameter of the air gun pipe.
In a better embodiment of the present utility model, the cone angle of the Venturi tube is 10 °～30 °.
From the above mentioned, test burner oil gas integral type igniter head that this utility model is provided, has the advantages that：
(1) test burner oil gas integral type igniter head of the present utility model is to strengthen premixed combustion machine based on multiple jet
The oil gas of reason combines igniter head, is provided with the Venturi tube of particular design, height of the fuel oil in Venturi tube in its hurricane globe one end
The negative-pressure ejecting effect that speed injection is formed can strengthen the mixing of fuel oil and air；
(2) test burner oil gas integral type igniter head of the present utility model, its center is fuel oil spray orifice, fuel oil spray orifice
Around uniform multiple gas jet orifices, in same igniter head, first pass through igniter and light gas spray head, refire fuel oil spray
Head, non-stop run when realizing changing igniter fuel；
(3) test burner oil gas integral type igniter head of the present utility model, uniform annular around its fuel oil spray orifice
The multiple jet that gas jet orifice is formed can aggravate the shearing of fuel gas injection and air, and overheavy firing strengthens flame rigidity, in conjunction with
The auxiliary combustion effect of combustion gas auxiliary spray hole improves flame wind resistance；
(4) test burner oil gas integral type igniter head of the present utility model can realize two kinds of gas ignition and fuel ignition
Function, it is ensured that the development of the normal work and oil and gas well testing technique of test burner.
Description of the drawings
The following drawings is only intended to, in this utility model is done schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1：Structural representation for test burner oil gas integral type igniter head of the present utility model.
Fig. 2：For enlarged drawing in Fig. 1 I.
Fig. 3：A direction views in for Fig. 2.
In figure：
100th, burner oil gas integral type igniter head is tested；
1st, hurricane globe；
2nd, Venturi tube；
3rd, air intake pipe；
4th, oil gas integral type shower nozzle；
41st, fuel oil spray orifice；
42nd, gas jet orifice；
43rd, shower nozzle end cap；
44th, shower nozzle inner tube；
45th, shower nozzle outer tube；
46th, combustion gas auxiliary spray hole；
5th, oil gun pipe；
51st, fuel filler；
6th, air gun pipe；
61st, fuel gas inlet.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now control is illustrated
Specific embodiment of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of test burner oil gas integral type igniter head 100 that this utility model is provided,
Including the hurricane globe 1 of both ends open, one end of hurricane globe 1 is provided with the venturi that the straight direction radially away from hurricane globe 1 is reduced
Pipe 2, the other end (miner diameter end) sealing of Venturi tube 2 are communicated with air intake pipe 3；The throat of Venturi tube 2 is arranged oriented sky
The oil gas integral type shower nozzle 4 that the inside of gas suction tube 3 is extended, oil gas integral type shower nozzle 4 point to the inside of Venturi tube 2,
One end center of oil gas integral type shower nozzle 4 is provided with fuel oil spray orifice 41, and the radial outside setting of fuel oil spray orifice 41 is circumferentially equal
Multiple gas jet orifices 42 of cloth, the other end of air intake pipe 3 extend internally and are provided with oil gun pipe 5, and the outside of oil gun pipe 5 is arranged
There are the air gun pipe 6 being isolated with oil gun pipe 5, oil gun pipe 5 to be fixedly connected with oil gas integral type shower nozzle 4 and close with fuel oil spray orifice 41
Envelope connection, air gun pipe 6 be fixedly connected with oil gas integral type shower nozzle 4 and with gas jet orifice 42 seal connect, oil gun pipe 5 another
End is provided with fuel filler 51, and the other end of air gun pipe 6 is provided with fuel gas inlet 61.In the present embodiment, oil gun pipe 5 passes through
The capping of 6 flange in the bottom of air gun pipe is fixedly welded on air gun pipe 6 and is integrally formed structure, and the two is again by double-deck shower nozzle (existing skill
Art) it is fixedly connected (threaded connection) in fuel oil, fuel gas supply structure.The test burner oil gas one that this utility model is provided
When formula igniter head 100 is used, the free end and integrated testability burner for drawing air into pipe 3 is fixed, according to test burning
The difference of the internal structure of device, the free end of air intake pipe 3 can be locking by pipe collar, it is also possible to by flange and radial direction spiral shell
Nail is fixed.1 one end of hurricane globe of test burner oil gas integral type igniter head 100 arranges Venturi tube 2, oil gas integral type
41 radial outside of fuel oil spray orifice that 4 center of shower nozzle is arranged arranges circumferentially uniform multiple gas jet orifices 42, such structure
Design makes full use of venturi negative-pressure ejecting and multiple jet to strengthen the effect of premixed combustion, tests burner oil gas integral type point
Duration and degree of heating 100 can not only form longer ever-burning flame, while being provided with higher wind loading rating, can meet marine test burner
The requirement of continuous ignition during burning, it is ensured that smooth development of the test technology in adverse circumstances.
Further, as shown in Figure 2 and Figure 3, oil gas integral type shower nozzle 4 includes the shower nozzle inner tube being tightly connected with oil gun pipe 5
44, the outside of shower nozzle inner tube 44 is coaxial and is spaced and is arranged with the shower nozzle outer tube 45 being tightly connected with air gun pipe 6,44 He of shower nozzle inner tube
Shower nozzle outer tube 45 is tightly connected to form shower nozzle end cap 43 near one end of Venturi tube 2, and the center of shower nozzle end cap 43 is arranged
The fuel oil spray orifice 41 that states, the radial outside of fuel oil spray orifice 41 arrange gas jet orifice 42, and shower nozzle inner tube 44 is connected with fuel oil spray orifice 41,
Shower nozzle outer tube 45 is connected with gas jet orifice 42.In the present embodiment, shower nozzle end cap 43 is sprayed to oil gas integral type shower nozzle 4 for diameter
Penetrate the tapered pyramidal structure in direction.
Further, as shown in Figure 2 and Figure 3, the center of shower nozzle end cap 43 is provided with one or more circumferentially uniform institutes
Fuel oil spray orifice 41 is stated, the radial outside of fuel oil spray orifice 41 arranges multiple circumferentially uniform gas jet orifices 42.In this enforcement
In mode, the quantity of fuel oil spray orifice 41 is 1～6, and the quantity of gas jet orifice 42 is 3～10.
Further, as shown in Fig. 2 being provided with uniform point on the side wall of one end that is connected with shower nozzle end cap 43 of shower nozzle outer tube 45
Multiple combustion gas auxiliary spray holes 46 of cloth, the quantity of combustion gas auxiliary spray hole 46 is 3～10.Combustion gas auxiliary spray hole 46 is to gas jet orifice
42 auxiliary combustion effect can improve flame wind resistance.
Further, as shown in figure 1, hurricane globe 1 is the netty circular tube structure for opening up through hole on the wall of side, hurricane globe 1 can also
It is circular tube structure of the side wall completely without perforate, for opening up the netty circular tube structure of through hole on the wall of side, air is sucked air intake pipe 3
Pipe 3 can also be circular tube structure of the side wall completely without perforate.
Further, as shown in figure 1, the outside diameter D1 of hurricane globe 1 is 1.5～5 times of the outer diameter D 3 of air gun pipe 6, oil gas
The free end of the free end of integral type shower nozzle 4 to hurricane globe 1 apart from L1 for hurricane globe 1 outside diameter D1 2.5～3.5
Times.
Further, as shown in figure 1, the diameter of bore D4 of air intake pipe 3 is the 1～2 of the outside diameter D1 of hurricane globe 1
Times, the free end of the free end to air intake pipe 3 of hurricane globe 1 apart from L for oil gas integral type shower nozzle 4 free end to Radix Saposhnikoviae
2～3 times apart from L1 of the free end of cover 1.
Further, as shown in figure 1, the diameter of bore D2 of end that Venturi tube 2 is connected with air intake pipe 3 is air gun pipe
1.05～1.5 times of 6 outer diameter D 3.
Further, as shown in figure 1, the cone angle of Venturi tube 2 is 10 °～30 °.
The Venturi tube 2 that 1 one end of hurricane globe of test burner oil gas integral type igniter head 100 of the present utility model is arranged
There is certain matching relationship with fuel injection flow, local decompression is formed to meet high-speed jet, be formed simultaneously with the injection that imitates
Air participates in the atomization of fuel oil and fuel reinforcing pre-compounding process, effectively improves test burner oil gas integral type igniter head 100
Fuel oil stability, reduces the generation of oil droplet drippage and phenomenon of stopping working.The geometric parameter of circumferential uniform gas jet orifice 42 and Radix Saposhnikoviae
The fuel injection amount of cover 1 and fuel oil spray orifice 41 will be configured according to certain rule, to ensure that gas jet orifice 42 can be formed effectively
Multiple jet coalescence mechanism, it is ensured that the high shear forces of combustion gas and air form reinforcing premix, and are effectively atomization oil droplet
Smoothly light and completely burned off offer guarantee, to adapt to the adverse circumstances of oil and gas well testing.
From the above mentioned, test burner oil gas integral type igniter head that this utility model is provided, has the advantages that：
(1) test burner oil gas integral type igniter head of the present utility model is to strengthen premixed combustion machine based on multiple jet
The oil gas of reason combines igniter head, is provided with the Venturi tube of particular design, height of the fuel oil in Venturi tube in its hurricane globe one end
The negative-pressure ejecting effect that speed injection is formed can strengthen the mixing of fuel oil and air；
(2) test burner oil gas integral type igniter head of the present utility model, its center is fuel oil spray orifice, fuel oil spray orifice
Around uniform multiple gas jet orifices, in same igniter head, first pass through igniter and light gas spray head, refire fuel oil spray
Head, non-stop run when realizing changing igniter fuel；
(3) test burner oil gas integral type igniter head of the present utility model, uniform annular around its fuel oil spray orifice
The multiple jet that gas jet orifice is formed can aggravate the shearing of fuel gas injection and air, and overheavy firing strengthens flame rigidity, in conjunction with
The auxiliary combustion effect of combustion gas auxiliary spray hole improves flame wind resistance；
(4) test burner oil gas integral type igniter head of the present utility model can realize two kinds of gas ignition and fuel ignition
Function, it is ensured that the development of the normal work and oil and gas well testing technique of test burner.
The schematic specific embodiment of this utility model is the foregoing is only, model of the present utility model is not limited to
Enclose.Any those skilled in the art, on the premise of without departing from design of the present utility model and principle, done equivalent becomes
Change and modification, the scope of this utility model protection all should be belonged to.
Claims (10)
1. one kind tests burner oil gas integral type igniter head, it is characterised in that：The test burner oil gas integral type igniting
Head includes that the hurricane globe of both ends open, one end of the hurricane globe are provided with what the straight direction radially away from the hurricane globe was reduced
Venturi tube, the other end sealing of the Venturi tube are communicated with air intake pipe；The throat of the Venturi tube is arranged oriented
The oil gas integral type shower nozzle that the inside of the air intake pipe is extended, the oil gas integral type shower nozzle point to the venturi
The inside of pipe, the center of one end of the oil gas integral type shower nozzle are provided with fuel oil spray orifice, and the footpath of the fuel oil spray orifice is outside
Side arranges circumferentially uniform multiple gas jet orifices；The other end of the air intake pipe extends internally and is provided with oil gun pipe, institute
State and on the outside of oil gun pipe, be arranged with the air gun pipe being isolated with the oil gun pipe, the oil gun pipe and the oil gas integral type shower nozzle
Be fixedly connected and with the fuel oil spray orifice sealing connect, the air gun pipe be fixedly connected with the oil gas integral type shower nozzle and with
The gas jet orifice sealing connection, the other end of the oil gun pipe are provided with fuel filler, and the other end of the air gun pipe is arranged
There is fuel gas inlet.
2. as claimed in claim 1 test burner oil gas integral type igniter head, it is characterised in that：The oil gas integral type spray
Head includes the shower nozzle inner tube that be connected with the oil gun seal of tube, the outside of the shower nozzle inner tube is coaxial and interval be arranged with described
The shower nozzle outer tube of air gun seal of tube connection, the shower nozzle inner tube and the shower nozzle outer tube are sealed near one end of the Venturi tube
Connection forms shower nozzle end cap, and the center of the shower nozzle end cap arranges the fuel oil spray orifice, the radial outside of the fuel oil spray orifice
The gas jet orifice is set, and the shower nozzle inner tube is connected with the fuel oil spray orifice, and the shower nozzle outer tube is connected with the gas jet orifice
Logical.
3. as claimed in claim 2 test burner oil gas integral type igniter head, it is characterised in that：In the shower nozzle end cap
One or more circumferentially uniform fuel oil spray orifices are provided with the heart, and the radial outside setting of the fuel oil spray orifice is multiple to be in
The gas jet orifice of circumference uniform distribution.
4. as claimed in claim 3 test burner oil gas integral type igniter head, it is characterised in that：The number of the fuel oil spray orifice
Measure as 1～6, the quantity of the gas jet orifice is 3～10.
5. as claimed in claim 3 test burner oil gas integral type igniter head, it is characterised in that：The side of the shower nozzle outer tube
Equally distributed multiple combustion gas auxiliary spray holes are provided with wall, and the quantity of the combustion gas auxiliary spray hole is 3～10.
6. as claimed in claim 1 test burner oil gas integral type igniter head, it is characterised in that：The hurricane globe is side wall
On open up the netty circular tube structure of through hole, the air intake pipe is the netty circular tube structure for opening up through hole on the wall of side.
7. test burner oil gas integral type igniter head as described in claim 1 or 6, it is characterised in that：The hurricane globe
Outside diameter is 1.5～5 times of the external diameter of the air gun pipe, and the free end of the oil gas integral type shower nozzle is to the hurricane globe
The distance of free end is 2.5～3.5 times of the outside diameter of the hurricane globe.
8. test burner oil gas integral type igniter head as described in claim 1 or 6, it is characterised in that：The air suction
The diameter of bore of pipe is 1～2 times of the outside diameter of the hurricane globe, and the free end of the hurricane globe is to the air intake pipe
The distance of free end be 2～3 times of distance of free end of free end to the hurricane globe of the oil gas integral type shower nozzle.
9. as claimed in claim 1 test burner oil gas integral type igniter head, it is characterised in that：The Venturi tube and institute
The diameter of bore for stating the end of air intake pipe connection is 1.05～1.5 times of the external diameter of the air gun pipe.
10. test burner oil gas integral type igniter head as described in claim 1 or 6 or 9, it is characterised in that：The literary mound
In pipe cone angle be 10 °～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997672.9U CN206018631U (en) | 2016-08-30 | 2016-08-30 | Test burner oil gas integral type igniter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620997672.9U CN206018631U (en) | 2016-08-30 | 2016-08-30 | Test burner oil gas integral type igniter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206018631U true CN206018631U (en) | 2017-03-15 |
Family
ID=58256316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620997672.9U Expired - Fee Related CN206018631U (en) | 2016-08-30 | 2016-08-30 | Test burner oil gas integral type igniter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206018631U (en) |
-
2016
- 2016-08-30 CN CN201620997672.9U patent/CN206018631U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |