CN206094017U - Modified boiler balance container - Google Patents
Modified boiler balance container Download PDFInfo
- Publication number
- CN206094017U CN206094017U CN201620712314.9U CN201620712314U CN206094017U CN 206094017 U CN206094017 U CN 206094017U CN 201620712314 U CN201620712314 U CN 201620712314U CN 206094017 U CN206094017 U CN 206094017U
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- China
- Prior art keywords
- pipe
- cylinder
- water inlet
- inlet pipe
- sets
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a modified boiler balance container. The utility model discloses a barrel, barrel inside have the stock solution chamber, and the stock solution intracavity sets up the baffle and separates to become upward cavity and lower cavity with it, sets up communicating pipe on the baffle, and the upper portion of barrel sets up the inlet tube, and the lower part of barrel sets up down the inlet tube, cavity on the enterprising cross current, cavity under the lower inlet tube intercommunication, the lateral part of barrel sets up the low pressure drain pipe, and the low pressure drain pipe feeds through goes up the cavity, sets up first three -way valve on the outer mouth of pipe of low pressure drain pipe, other two valve ports difference run -on water pipe of first three -way valve, low pressure sensor, and the bottom of barrel sets up high -pressure drain pipe, and high -pressure drain pipe intercommunication is the cavity down, sets up the second three -way valve on the outer mouth of pipe of high -pressure drain pipe, other two valve ports difference run -on water pipe of second three -way valve, high pressure sensor, setting up on the inner wall of barrel and leading the sliding surface, the periphery of baffle sets up the slip edge, and the outside of barrel sets up actuating mechanism, and actuating mechanism connects the baffle.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of boiler plant, particularly a kind of improved boiler balance
Container.
Background technology
Equalizing reservoir is a kind of clever structure, the Level Measuring Equipment in Steam Drum with self-compensating ability.Equalizing reservoir point
Single-compartment balance container and double-chamber balancing vessel, double-chamber balancing vessel has the annular funnel structure will be whole above benchmark cup
Individual equalizing reservoir is divided into two parts.
Existing equalizing reservoir cannot carry out the detection of water level high and low pressure, it is impossible to preferably provide precisely for operating personnel
Pressure behaviour data, and then cannot more preferably carry out the too low or too high warning of water level in the boiler.
Utility model content
The purpose of this utility model is there are the problems referred to above for existing technology, it is proposed that a kind of connection of adjustment dual chamber
Structure, and the improved boiler equalizing reservoir of pressure measuring function is set.
The purpose of this utility model can be realized by following technical proposal：A kind of improved boiler equalizing reservoir, including
There is cylinder, the inner barrel setting dividing plate in liquid storage cylinder, the liquid storage cylinder to be divided into upper chamber and lower chambers, described
Communicating pipe is set on dividing plate, is located in epicoele room the communicating pipe, the communicating pipe is connected by top opening with upper chamber, the company
The bottom of siphunculus is connected by base opening after dividing plate with lower chambers, and the top of the cylinder arranges upper water inlet pipe, the cylinder
Bottom lower water inlet pipe is set, the upper water inlet pipe connects upper chamber, and the lower water inlet pipe connects lower chambers；The side of the cylinder
Portion arranges low-pressure drainage pipe, and the low-pressure drainage pipe connects upper chamber, and the one or three is arranged on the outer spout of the low-pressure drainage pipe
Port valve, two other valve port of first triple valve connects respectively drainpipe, low pressure sensor, and the bottom of the cylinder is arranged
High Pressure Drain pipe, the High Pressure Drain pipe connects lower chambers, and the second triple valve, institute are arranged on the outer spout of the High Pressure Drain pipe
Two other valve port for stating the second triple valve connects respectively drainpipe, high pressure sensor, and the low pressure sensor and high pressure are sensed
Device connects controller by circuit；Slide guide face is set on the inwall of the cylinder, and the periphery of the dividing plate arranges slip edge, institute
The both sides for stating slip edge are pasted with sealing joint strip, and the outside of the cylinder arranges drive mechanism, in the drive mechanism connection
Dividing plate is stated, the drive mechanism connects controller noted above by circuit.
In this improved boiler equalizing reservoir, upper water inlet pipe and lower water inlet pipe with the inner space of boiler, make in boiler
Water flowed in cylinder by upper water inlet pipe and/or lower water inlet pipe.Using the cooperation of drive mechanism and Sliding Structures so that dividing plate
Can move along the length direction of cylinder, and then change the volume of upper chamber and lower chambers, while change the height and position of communicating pipe,
So that a set of equalizing reservoir can realize flexible modulation function according to the different size of connection boiler or different requirements.
In above-mentioned improved boiler equalizing reservoir, the communicating pipe is telescoping tube, and the stage casing of the telescoping tube has
Bellows piece, the telescoping tube is by lifting assembly drive connection, and the lifting assembly connects the controller by circuit, described
Position of the rising extreme position of telescoping tube less than the upper water inlet pipe.The length that communicating pipe is realized by arranging telescoping tube is adjusted
Section, thus carries out the regulation of communicating pipe height in the case where partition position is motionless.
In above-mentioned improved boiler equalizing reservoir, the communicating pipe is telescoping tube, and the telescoping tube includes some sections
The single-unit body being socketed successively, the telescoping tube is by lifting assembly drive connection, and the lifting assembly is described by circuit connection
Controller, the rising extreme position of the telescoping tube is less than the position of the upper water inlet pipe.Connection is realized by arranging telescoping tube
The length adjustment of pipe, thus carries out the regulation of communicating pipe height in the case where partition position is motionless.
In above-mentioned improved boiler equalizing reservoir, the drive mechanism includes telescopic cylinder, the telescopic cylinder
Telescopic shaft is connected gear frame, and the gear frame is connected the dividing plate by least one drive link.
In above-mentioned improved boiler equalizing reservoir, the drive mechanism includes rotary electric machine, the rotary electric machine
Output shaft connection reducer, is arranged gear, the wheel and rack engagement connection, the tooth bar on the output shaft of the decelerator
End be connected the dividing plate by drive link.
In above-mentioned improved boiler equalizing reservoir, upper limit block and lower limit gear are set on the inwall of the cylinder
Block, the upper limit block be located at low-pressure drainage pipe lower section, the lower limit block be located at lower water inlet pipe top, it is described every
The straight skidding stroke of plate is located between upper limit block and lower limit block.By upper limit block and the position of lower limit block
Restriction is put, to determine the scope of activities of dividing plate, while realizing changing cavity volume and position height, it is ensured that low-pressure drainage pipe
Connection upper chamber, lower water inlet pipe connects lower chambers.
In above-mentioned improved boiler equalizing reservoir, the cylinder includes cylindrical stack shell, the top of the stack shell
Face arranges upper end cover, and screw is arranged on the upper end cover, and the bottom surface of the stack shell arranges bottom end cover, and the lower drainpipe is through upper
State bottom end cover.
In above-mentioned improved boiler equalizing reservoir, on the upper water inlet pipe and the mouth of pipe of lower water inlet pipe assembling is respectively provided with
Flange, the junction of the assembly flange is sticked sealing ring.By assembly flange so that upper water inlet pipe, lower water inlet pipe and boiler reality
Now connection is installed, and realizes being tightly connected using sealing ring.
The How It Works of boiler equalizing reservoir, comprise the following steps：
1), connect specification and its degree of balance requirement of boiler according to this equalizing reservoir, driving machine is manipulated by controller
Structure band dynamic dividing plate carries out lifting action, to adjust the volume of suitable upper chamber and lower chambers, is risen by controller manipulation and is come down to a lower group
Part drives and elongates or shortens communicating pipe to appropriate height；
2), when water level is low in the inner chamber of boiler, water is flowed in lower chambers, subsequently gradually within communicating pipe by lower water inlet pipe
Raise, it is now anhydrous in epicoele room；
3) when, needing detection, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent
To controller, once controller judges that pressure value is too low just sends warning, staff is reminded to add water into boiler；
4) when, in the middle of water level in the inner chamber of boiler, water is flowed in lower chambers, subsequently gradually in communicating pipe by lower water inlet pipe
It is interior to raise until overflowing into upper chamber by top opening；
5) when, needing detection, opening the first triple valve makes low pressure sensor carry out low pressure sensing, and sensing numerical value is sent
To controller, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent to controller, passes through
Controller records the dynamic of low voltage value and high-voltage value；
6), when water level is high in the inner chamber of boiler, water is flowed in lower chambers, subsequently gradually within communicating pipe by lower water inlet pipe
Raise until overflowing into upper chamber by top opening；Water is flowed in upper chamber by upper water inlet pipe；
7) when, needing detection, opening the first triple valve makes low pressure sensor carry out low pressure sensing, and sensing numerical value is sent
To controller, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent to controller, once
Controller judges that pressure value is too high and just sends warning, reminds staff to open the first triple valve and arranged with the second triple valve
Water.
In above-mentioned How It Works, the cross-sectional area of the communicating pipe is the ﹕ of 1 ﹕ 5～1 with the cross-sectional area ratio of lower chambers
3。
Compared with prior art, this improved boiler equalizing reservoir and its How It Works have advantages below：
1), by adjusting the connectivity structure of dual chamber, and load cell is set on the drainpipe of each chamber, is thus existed
High and low pressure monitoring is carried out under the different situations of water level, it is dynamic in record hydraulic pressure meanwhile, it is capable to effectively monitoring water level is too low or mistake
High situation simultaneously carries out warning prompting.
2), by the removable dynamic characteristic of dividing plate, the adjustability that cylinder lumen separates is realized, thus only can pin with a set of equipment
Different boiler types are carried out with correspondence adjustment, is required with the degree of balance needed for adapting to.
3), the utility model has a simple structure, and effect is precisely reliable, and flexible modulation degree is big, the features such as applicability is extensive.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of this improved boiler equalizing reservoir.
In figure, 1, screw；2nd, upper end cover；3rd, cylinder；4th, communicating pipe；5th, low-pressure drainage pipe；6th, upper water inlet pipe；7th, dividing plate；
8th, lower water inlet pipe；9th, bottom end cover；10th, High Pressure Drain pipe.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this improved boiler equalizing reservoir, including cylinder 3, the inside of cylinder 3 has liquid storage cylinder, in liquid storage cylinder
Dividing plate 7 is set and is divided into upper chamber and lower chambers, communicating pipe 4 is set on dividing plate 7, be located in epicoele room communicating pipe 4, connection
Pipe 4 is connected by top opening with upper chamber, and the bottom of communicating pipe 4 is connected by base opening after dividing plate 7 with lower chambers, cylinder 3
Top arranges upper water inlet pipe 6, and the bottom of cylinder 3 arranges lower water inlet pipe 8, and the connection of upper water inlet pipe 6 upper chamber, lower water inlet pipe 8 is connected
Lower chambers；The sidepiece of cylinder 3 arranges low-pressure drainage pipe 5, the connection of low-pressure drainage pipe 5 upper chamber, on the outer spout of low-pressure drainage pipe 5
First triple valve is set, and two other valve port of the first triple valve connects respectively drainpipe, low pressure sensor, the bottom of cylinder 3
High Pressure Drain pipe 10 is set, and the connection lower chambers of High Pressure Drain pipe 10 arrange the second triple valve on the outer spout of High Pressure Drain pipe 10,
Two other valve port of second triple valve connects respectively drainpipe, high pressure sensor, and low pressure sensor and high pressure sensor lead to
Oversampling circuit connects controller；Slide guide face is set on the inwall of cylinder 3, and the periphery of dividing plate 7 arranges slip edge, and the both sides on slip edge are equal
Sealing joint strip is pasted with, the outside of cylinder 3 arranges drive mechanism, and drive mechanism connecting partition 7, drive mechanism is connected by circuit
Controller.
In this improved boiler equalizing reservoir, upper water inlet pipe 6 and lower water inlet pipe 8 with the inner space of boiler, make boiler
Interior water is flowed in cylinder 3 by upper water inlet pipe 6 and/or lower water inlet pipe 8.Using the cooperation of drive mechanism and Sliding Structures, make
Obtaining dividing plate 7 can move along the length direction of cylinder 3, and then change the volume of upper chamber and lower chambers, while changing communicating pipe 4
Height and position, so that a set of equalizing reservoir can realize flexible modulation work(according to the different size of connection boiler or different requirements
Energy.
The structure of communicating pipe 4 has two kinds of embodiments：
Embodiment one：Communicating pipe 4 is telescoping tube, and the stage casing of telescoping tube has bellows piece, and telescoping tube is driven by lifting assembly
Dynamic connection, lifting assembly connects controller by circuit, and the rising extreme position of telescoping tube is less than the position of upper water inlet pipe 6.It is logical
Cross and the length adjustment that telescoping tube realizes communicating pipe 4 is set, the height of communicating pipe 4 is thus carried out in the case where the position of dividing plate 7 is motionless
Regulation.
Embodiment two：Communicating pipe 4 is telescoping tube, telescoping tube include it is some save the single-unit bodys that are socketed successively, telescoping tube by
Lifting assembly drive connection, lifting assembly connects controller by circuit, and the rising extreme position of telescoping tube is less than upper water inlet pipe 6
Position.The length adjustment of communicating pipe 4 is realized by arranging telescoping tube, is thus connected in the case where the position of dividing plate 7 is motionless
The regulation of the height of siphunculus 4.
Drive mechanism has two kinds of embodiments：
Embodiment one：Drive mechanism includes telescopic cylinder, and the connected gear frame of telescopic shaft of telescopic cylinder, gear frame passes through extremely
Lack the connected dividing plate 7 of a drive link.
Embodiment two：Drive mechanism includes rotary electric machine, the output shaft connection reducer of rotary electric machine, the output of decelerator
Gear is arranged on axle, wheel and rack engagement connection, the end of tooth bar passes through the connected dividing plate 7 of drive link.
Upper limit block and lower limit block are set on the inwall of cylinder 3, and upper limit block is located under low-pressure drainage pipe 5
Side, lower limit block is located at the top of lower water inlet pipe 8, and the straight skidding stroke of dividing plate 7 is located at upper limit block and lower limit gear
Between block.By upper limit block and the position restriction of lower limit block, to determine the scope of activities of dividing plate 7, realizing changing
While cavity volume and position height, it is ensured that low-pressure drainage pipe 5 connects upper chamber, lower water inlet pipe 8 connects lower chambers.
Cylinder 3 includes cylindrical stack shell, and the top surface of stack shell arranges upper end cover 2, and screw 1, stack shell are arranged on upper end cover 2
Bottom surface arrange bottom end cover 9, lower drainpipe run through bottom end cover 9.
It is respectively provided with assembly flange on upper water inlet pipe 6 and the mouth of pipe of lower water inlet pipe 8, the junction of assembly flange is sticked sealing
Circle.By assembly flange so that upper water inlet pipe 6, lower water inlet pipe 8 are realized connecting installation with boiler, and realize sealing using sealing ring
Connection.
The How It Works of boiler equalizing reservoir, comprise the following steps：
1), connect specification and its degree of balance requirement of boiler according to this equalizing reservoir, driving machine is manipulated by controller
Structure band dynamic dividing plate 7 carries out lifting action, to adjust the volume of suitable upper chamber and lower chambers, is risen by controller manipulation and is come down to a lower group
Part drives and elongates or shortens to appropriate height communicating pipe 4；
2), when water level is low in the inner chamber of boiler, water is flowed in lower chambers by lower water inlet pipe 8, subsequently gradually in communicating pipe 4
Interior rising, it is now anhydrous in epicoele room；
3) when, needing detection, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent
To controller, once controller judges that pressure value is too low just sends warning, staff is reminded to add water into boiler；
4) when, in the middle of water level in the inner chamber of boiler, water is flowed in lower chambers by lower water inlet pipe 8, subsequently gradually in connection
Raise until overflowing into upper chamber by top opening in pipe 4；
5) when, needing detection, opening the first triple valve makes low pressure sensor carry out low pressure sensing, and sensing numerical value is sent
To controller, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent to controller, passes through
Controller records the dynamic of low voltage value and high-voltage value；
6), when water level is high in the inner chamber of boiler, water is flowed in lower chambers by lower water inlet pipe 8, subsequently gradually in communicating pipe 4
It is interior to raise until overflowing into upper chamber by top opening；Water is flowed in upper chamber by upper water inlet pipe 6；
7) when, needing detection, opening the first triple valve makes low pressure sensor carry out low pressure sensing, and sensing numerical value is sent
To controller, opening the second triple valve makes high pressure sensor carry out high voltage sense, and sensing numerical value is sent to controller, once
Controller judges that pressure value is too high and just sends warning, reminds staff to open the first triple valve and arranged with the second triple valve
Water.
The cross-sectional area of communicating pipe 4 is the ﹕ 3 of 1 ﹕ 5～1 with the cross-sectional area ratio of lower chambers.
This improved boiler equalizing reservoir and its How It Works have advantages below：
1), by adjusting the connectivity structure of dual chamber, and load cell is set on the drainpipe of each chamber, is thus existed
High and low pressure monitoring is carried out under the different situations of water level, it is dynamic in record hydraulic pressure meanwhile, it is capable to effectively monitoring water level is too low or mistake
High situation simultaneously carries out warning prompting.
2), by the removable dynamic characteristic of dividing plate 7, the adjustability that the inner chamber of cylinder 3 separates is realized, thus only can with a set of equipment
Correspondence adjustment is carried out for different boiler types, is required with the degree of balance needed for adapting to.
3), the utility model has a simple structure, and effect is precisely reliable, and flexible modulation degree is big, the features such as applicability is extensive.
Specific embodiment described herein is only explanation for example to the utility model spirit.The utility model institute
Category those skilled in the art can make various modifications to described specific embodiment or supplement or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used screw 1 herein；Upper end cover 2；Cylinder 3；Communicating pipe 4；Low-pressure drainage pipe 5；Upper water inlet pipe
6；Dividing plate 7；Lower water inlet pipe 8；Bottom end cover 9；The grade term of High Pressure Drain pipe 10, but be not precluded from using the possibility of other terms.
It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It is construed as any one
Additional restriction is all contrary with the utility model spirit.
Claims (8)
1. a kind of improved boiler equalizing reservoir, including cylinder, it is characterised in that the inner barrel has liquid storage cylinder, described
Dividing plate is set in liquid storage cylinder and is divided into upper chamber and lower chambers, communicating pipe is set on the dividing plate, be located at the communicating pipe
In epicoele room, the communicating pipe is connected by top opening with upper chamber, the bottom of the communicating pipe after dividing plate by base opening with
Lower chambers are connected, and the top of the cylinder arranges upper water inlet pipe, and the bottom of the cylinder arranges lower water inlet pipe, the upper water inlet pipe
Connection upper chamber, the lower water inlet pipe connects lower chambers；The sidepiece of the cylinder arranges low-pressure drainage pipe, the low-pressure drainage pipe
Connection upper chamber, arranges the first triple valve, two other valve of first triple valve on the outer spout of the low-pressure drainage pipe
Mouth connects respectively drainpipe, low pressure sensor, and the bottom of the cylinder arranges High Pressure Drain pipe, under the High Pressure Drain pipe connection
Chamber, arranges the second triple valve, two other valve port difference of second triple valve on the outer spout of the High Pressure Drain pipe
Connection drainpipe, high pressure sensor, the low pressure sensor and high pressure sensor connect controller by circuit；The cylinder
Inwall on slide guide face is set, the periphery of the dividing plate arranges slip edge, and the both sides on the slip edge are pasted with sealing joint strip,
The outside of the cylinder arranges drive mechanism, and the drive mechanism connects aforementioned barriers, and the drive mechanism is connected by circuit
Controller noted above.
2. improved boiler equalizing reservoir according to claim 1, it is characterised in that the communicating pipe is telescoping tube, institute
The stage casing for stating telescoping tube has bellows piece, and the telescoping tube passes through circuit by lifting assembly drive connection, the lifting assembly
Connect the controller, the rising extreme position of the telescoping tube is less than the position of the upper water inlet pipe.
3. improved boiler equalizing reservoir according to claim 1, it is characterised in that the communicating pipe is telescoping tube, institute
Stating telescoping tube includes some single-unit bodys for saving and being socketed successively, and the telescoping tube is come down to a lower group by lifting assembly drive connection, the liter
Part connects the controller by circuit, and the rising extreme position of the telescoping tube is less than the position of the upper water inlet pipe.
4. improved boiler equalizing reservoir according to claim 1, it is characterised in that the drive mechanism includes flexible gas
Cylinder, the telescopic shaft of the telescopic cylinder is connected gear frame, and the gear frame is connected the dividing plate by least one drive link.
5. improved boiler equalizing reservoir according to claim 1, it is characterised in that the drive mechanism includes rotating electricity
Machine, the output shaft connection reducer of the rotary electric machine is arranged gear, the wheel and rack on the output shaft of the decelerator
Engagement connection, the end of the tooth bar is connected the dividing plate by drive link.
6. improved boiler equalizing reservoir according to claim 1, it is characterised in that on arranging on the inwall of the cylinder
Positive stop and lower limit block, the upper limit block is located at the lower section of low-pressure drainage pipe, and the lower limit block is located at down
The top of water inlet pipe, the straight skidding stroke of the dividing plate is located between upper limit block and lower limit block.
7. improved boiler equalizing reservoir according to claim 1, it is characterised in that the cylinder includes cylindrical
Stack shell, the top surface of the stack shell arranges upper end cover, and screw is arranged on the upper end cover, and the bottom surface of the stack shell arranges bottom end cover,
The lower drainpipe runs through above-mentioned bottom end cover.
8. improved boiler equalizing reservoir according to claim 1, it is characterised in that the upper water inlet pipe and lower water inlet pipe
The mouth of pipe on be respectively provided with assembly flange, the junction of the assembly flange is sticked sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712314.9U CN206094017U (en) | 2016-06-30 | 2016-06-30 | Modified boiler balance container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712314.9U CN206094017U (en) | 2016-06-30 | 2016-06-30 | Modified boiler balance container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206094017U true CN206094017U (en) | 2017-04-12 |
Family
ID=58465440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620712314.9U Withdrawn - After Issue CN206094017U (en) | 2016-06-30 | 2016-06-30 | Modified boiler balance container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206094017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972576A (en) * | 2016-06-30 | 2016-09-28 | 浙江特富锅炉有限公司 | Improved balancing container for boiler and operating method of improved balancing container |
-
2016
- 2016-06-30 CN CN201620712314.9U patent/CN206094017U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972576A (en) * | 2016-06-30 | 2016-09-28 | 浙江特富锅炉有限公司 | Improved balancing container for boiler and operating method of improved balancing container |
| CN105972576B (en) * | 2016-06-30 | 2017-12-05 | 浙江特富锅炉有限公司 | A kind of improved boiler equalizing reservoir and its operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170412 Effective date of abandoning: 20171205 |
|
| AV01 | Patent right actively abandoned |