[go: up one dir, main page]

KR100800101B1 - Mechanical jack for circulating water pump - Google Patents

Mechanical jack for circulating water pump Download PDF

Info

Publication number
KR100800101B1
KR100800101B1 KR1020070005765A KR20070005765A KR100800101B1 KR 100800101 B1 KR100800101 B1 KR 100800101B1 KR 1020070005765 A KR1020070005765 A KR 1020070005765A KR 20070005765 A KR20070005765 A KR 20070005765A KR 100800101 B1 KR100800101 B1 KR 100800101B1
Authority
KR
South Korea
Prior art keywords
pump
motor
circulating water
casing
mechanical jack
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.)
Active
Application number
KR1020070005765A
Other languages
Korean (ko)
Inventor
최영태
Original Assignee
한국서부발전 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국서부발전 주식회사 filed Critical 한국서부발전 주식회사
Priority to KR1020070005765A priority Critical patent/KR100800101B1/en
Application granted granted Critical
Publication of KR100800101B1 publication Critical patent/KR100800101B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명은 화력발전소의 증기터빈 운전 중 터빈에서 배출되는 증기를 응축할 수 있도록 복수기에 냉각수(순환수)를 공급하는 펌프와 모터에 설치되어 이 펌프와 모터에서 발생되는 공진을 저감할 수 있는 순환수 펌프용 메카니칼 잭에 관한 것이다.The present invention is installed in the pump and the motor for supplying the cooling water (circulating water) to the condenser to condense the steam discharged from the turbine during the operation of the steam turbine of the thermal power plant circulation to reduce the resonance generated by the pump and motor A mechanical jack for a water pump.

즉 본 발명은 발전설비인 복수기에 냉각수인 순환수를 공급하는 펌프(1)와 모터(2) 사이에 장착되어 이 펌프의 진동치를 저감시키기 위해 상기 모터(2)에 접하는 축받이(4)를 갖춘 리드 스크류축(5)이 케이싱(6)의 관통구멍(7)에 끼워 설치되며, 상기 리드 스크류축(5)은 케이싱(6)에 설치된 잠금너트(8)의 체결 및 해제에 의하여 그 길이가 조정 가능하며, 상기 케이싱(6)은 펌프(1)와 접하여 설치되는 구조로 되어 있다.That is, the present invention is provided between the pump (1) and the motor (2) for supplying the circulating water as the cooling water to the condenser, which is a power generation equipment, and has a bearing (4) in contact with the motor (2) to reduce the vibration value of the pump The lead screw shaft 5 is fitted into the through hole 7 of the casing 6, and the lead screw shaft 5 has a length thereof by fastening and releasing the locking nut 8 installed in the casing 6. It is adjustable, and the casing 6 has a structure installed in contact with the pump (1).

Description

순환수 펌프용 메카니칼 잭{Mechanical jack for circulating water pump}Mechanical jack for circulating water pump

도 1은 본 발명이 적용되는 순환수 공급용 펌프와 모터의 개략 구성도,1 is a schematic configuration diagram of a pump and a motor for supplying circulation water to which the present invention is applied;

도 2는 본 발명에 따른 순환수 펌프용 메카니칼 잭의 단면 구성도이다.2 is a cross-sectional configuration diagram of a mechanical jack for a circulating water pump according to the present invention.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

1 : 펌프, 2 : 모터,1: pump, 2: motor,

3 : 메카니칼 잭(Mechanical jack) 4 : 축받이,3: mechanical jack 4: bearing,

5 : 리드 스크류, 6 : 케이싱,5: lead screw, 6: casing,

7 : 관통구멍, 8 : 잠금너트.7: through hole, 8: lock nut.

본 발명은 화력발전소의 증기터빈 운전 중 터빈에서 배출되는 증기를 응축할 수 있도록 복수기에 냉각수(순환수)를 공급하는 펌프와 모터에 설치되어 이 펌프와 모터에서 발생되는 공진을 저감할 수 있는 순환수 펌프용 메카니칼 잭에 관한 것이다.The present invention is installed in the pump and the motor for supplying the cooling water (circulating water) to the condenser to condense the steam discharged from the turbine during the operation of the steam turbine of the thermal power plant circulation to reduce the resonance generated by the pump and motor A mechanical jack for a water pump.

화력발전소에서 보일러를 통과한 배기가스 열이 증기를 발생시키고 이 증기로 증기터빈을 돌려 발전하도록 되어 있는데, 증기터빈 운전 중 이 증기터빈에서 배출되는 증기를 응축할 수 있도록 냉각수(순환수)를 공급하기 위해 펌프와 모터가 설치되어 있으며, 이러한 순환수 공급용 펌프와 모터는 발전소 안전운영을 위해 매우 중요한 설비로서, 펌프운영 중 펌프의 이상 유무를 점검하기 위해 진동변화 추이를 관찰하며, 만약 진동으로 인한 펌프운전 불가시 복수기의 진공도 저하로 발전정지 우려가 있다.In the thermal power plant, the heat of the exhaust gas passing through the boiler generates steam and turns the steam turbine to generate electricity. The cooling water (circulating water) is supplied to condense the steam emitted from the steam turbine during steam turbine operation. Pumps and motors are installed for the purpose. These pumps and motors for circulating water supply are very important for the safety operation of power plants. Observe the vibration change to check the abnormality of pumps during pump operation. If the pump operation is impossible due to the decrease in the vacuum degree of the condenser, there is a fear of power generation stop.

통상적으로 발전소에서 복수기에 순환수를 공급하는 펌프는 정기적으로 점검하도록 되어 있으며, 펌프정비 후 초기에는 진동치가 60㎛ 정도로 양호하나, 약 2개월 운전 후 펌프의 진동치를 점검하게 되면 순간적이지만 진동치가 200㎛ 정도 상승하게 되는 문제점이 있다.Normally, the pump supplying circulating water to the condenser in the power plant is to be checked regularly, and after the pump maintenance, the vibration value is good at about 60㎛, but after checking the vibration value of the pump after about 2 months of operation, the vibration value is 200 There is a problem that rise to about μm.

여기서 펌프의 진동치 증가는 주로 펌프의 축 슬리이브, 베어링 및 임펠러, 허브의 편마모와 축 벤딩에 의하여 발생하게 되는데 이러한 진동치 증가현상은 펌프점검 후 일정기간이 지나면 자주 반복되는 현상이었다.In this case, the vibration increase of the pump is mainly caused by the shaft sleeve of the pump, the bearing and the impeller, the uneven wear and the shaft bending of the hub, and the increase of the vibration was frequently repeated after a certain period of time after the pump inspection.

이에 본 발명은 상기와 같은 종래 문제점, 즉 운전중인 펌프의 진동치를 저감하여 안정적인 발전설비의 운전을 도모하기 위한 순환수 펌프용 메카니칼 잭을 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a mechanical jack for a circulating water pump for reducing the vibration of a pump in operation, thereby achieving stable operation of a power plant.

상기와 같은 목적을 달성하기 위한 본 발명은 발전소 복수기에 순환수를 공급하는 모터와 펌프의 진동치 저감을 위해 설치되는 것으로, 펌프와 모터에서 발생하는 공진을 최소화하기 위해 상기 펌프와 모터 사이에는 메카니칼 잭이 설치되며, 이 메카니칼 잭은 케이싱 내부에 형성된 관통구멍을 축받이를 갖춘 리스 스크류축 이 잠금너트를 매개로 설치되어 이루어져 있다.The present invention for achieving the above object is installed to reduce the vibration value of the motor and the pump for supplying the circulating water to the power plant condenser, the mechanical between the pump and the motor to minimize the resonance generated in the pump and the motor Jacks are installed, and the mechanical jacks are provided with a screwless screw shaft with a nut through the through-hole formed in the casing.

이하, 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 순환수, 펌프용 메카니칼 잭이 모터와 펌프 사이에 설치된 상태를 보여주는 개략 도면이고, 도 2는 본 발명의 요부인 메카니칼 잭의 단면도이다.1 is a schematic view showing a state in which a mechanical jack for circulating water and a pump is installed between a motor and a pump, and FIG. 2 is a cross-sectional view of a mechanical jack that is a main part of the present invention.

본 발명은 화력발전소의 증기터빈 운전 중 이 증기터빈에서 배출되는 증기를 응축할 수 있도록 복수기에 냉각수인 순환수를 공급하는 펌프(1)와 모터(2)에 설치되어 상기 펌프의 부품 손상으로 발생하는 진동상승을 흡수 저감하는 메카니칼 잭(3)으로서, 상기 펌프(1)와 모터(2) 사이의 X축 및 Y축 방향으로 다수 개 배치되어 있으므로, 하나의 메카니칼 잭(3)을 기준으로 설명한다.The present invention is installed in the pump (1) and the motor (2) for supplying the circulating water as a cooling water to the condenser to condense the steam discharged from the steam turbine during the operation of the steam turbine of the thermal power plant is generated by damage to the parts of the pump As the mechanical jack 3 for absorbing and reducing the vibration rise, the plurality of mechanical jacks 3 are arranged in the X-axis and Y-axis directions between the pump 1 and the motor 2, and thus the mechanical jack 3 will be described based on one mechanical jack 3. do.

본 발명은 순환수 펌프용 메카니칼 잭은 도 2에 도시된 바와 같이 모터(2)에 접하는 축받이(4)를 갖춘 리드 스크류축(5)이 케이싱(6)의 관통구멍(7)에 끼워 설치되되, 상기 리드 스크류축(5)은 케이싱(6)에 설치된 잠금너트(8)의 체결 및 해제에 의하여 그 길이가 조정 가능하며, 상기 케이싱(6)은 펌프(1)에 접하여 설치되는 구조로 되어 있다.In the present invention, the mechanical jack for the circulating water pump has a lead screw shaft (5) having a bearing (4) in contact with the motor (2) as shown in FIG. 2 being fitted into the through hole (7) of the casing (6). The length of the lead screw shaft 5 is adjustable by fastening and releasing the locking nut 8 installed on the casing 6, and the casing 6 is configured to be in contact with the pump 1. have.

그리고 상기 리드 스크류축(5)의 이동 행정범위는 대략 130 ~ 180㎜ 범위 내에서 이루어진다.And the moving stroke range of the lead screw shaft 5 is made in the range of approximately 130 ~ 180mm.

즉 상기와 같은 구조를 갖는 본 발명은 모터(2)의 리드 스크류축(5)의 축받이(4)가 접하고 케이싱(6)은 펌프(1)에 접하여 장착되는 구조를 갖음에 따라 운전 중 상기 펌프(1)와 모터(2)에서 발생되는 공진을 차단하여 진동발생을 최소화시킬 수가 있다.That is, the present invention having the above structure has a structure in which the bearing 4 of the lead screw shaft 5 of the motor 2 is in contact and the casing 6 is mounted in contact with the pump 1 so that the pump is in operation. It is possible to minimize the generation of vibration by blocking the resonance generated in the (1) and the motor (2).

상기와 같은 본 발명에 따른 순환수 펌프용 메카니칼 잭은 펌프의 부속부품들이 손상이 되어 운전중에 발생되는 진동상승을 최소화시키는 공진 차단효과와, 복수기에 순환수 공급시 펌프의 안정적인 운전으로 설비신뢰도 향상, 펌프 진동감소로 인한 운전 불안감의 해소 및 펌프 진동상승으로 인한 발전설비의 불시정지를 예방할 수 있는 효과 등을 지닌다.The mechanical jack for a circulating water pump according to the present invention as described above has the resonance blocking effect of minimizing the increase in vibration generated during operation due to damage to the pump's accessory parts, and the reliability of the equipment is improved by the stable operation of the pump when circulating water is supplied to the condenser. In addition, it has the effect of eliminating uneasiness caused by pump vibration reduction and preventing uninterrupted power generation equipment caused by pump vibration increase.

Claims (1)

발전설비인 복수기에 냉각수인 순환수를 공급하는 펌프(1)와 모터(2) 사이에 장착되어 이 펌프의 진동치를 저감시키기 위해 상기 모터(2)에 접하는 축받이(4)를 갖춘 리드 스크류축(5)이 케이싱(6)의 관통구멍(7)에 끼워 설치되며, 상기 리드 스크류축(5)은 케이싱(6)에 설치된 잠금너트(8)의 체결 및 해제에 의하여 그 길이가 조정 가능하며, 상기 케이싱(6)은 펌프(1)와 접하여 설치되는 순환수 펌프용 메카니칼 잭.A lead screw shaft provided between a pump 1 for supplying circulating water, which is cooling water, to a condenser, which is a power generation facility, and a bearing 4 which is in contact with the motor 2 to reduce the vibration of the pump. 5) is inserted into the through hole 7 of the casing (6), the lead screw shaft (5) is adjustable in length by fastening and releasing the lock nut (8) installed in the casing (6), The casing 6 is a mechanical jack for a circulating water pump installed in contact with the pump (1).
KR1020070005765A 2007-01-18 2007-01-18 Mechanical jack for circulating water pump Active KR100800101B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070005765A KR100800101B1 (en) 2007-01-18 2007-01-18 Mechanical jack for circulating water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070005765A KR100800101B1 (en) 2007-01-18 2007-01-18 Mechanical jack for circulating water pump

Publications (1)

Publication Number Publication Date
KR100800101B1 true KR100800101B1 (en) 2008-01-31

Family

ID=39219896

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070005765A Active KR100800101B1 (en) 2007-01-18 2007-01-18 Mechanical jack for circulating water pump

Country Status (1)

Country Link
KR (1) KR100800101B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980029560U (en) * 1996-11-27 1998-08-17 배순훈 Lower support device of washing machine
KR19980074957A (en) * 1997-03-28 1998-11-05 김영귀 Fixing Nut Supporting Device of Tappet Part for Diesel Engine
US5941512A (en) 1996-12-06 1999-08-24 Tokai Rubber Industries, Ltd. Vibration damper including mass member displaceable by fluid pressure change in working chamber
KR20070066597A (en) * 2005-12-22 2007-06-27 엘지전자 주식회사 Height adjustment leg of washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980029560U (en) * 1996-11-27 1998-08-17 배순훈 Lower support device of washing machine
US5941512A (en) 1996-12-06 1999-08-24 Tokai Rubber Industries, Ltd. Vibration damper including mass member displaceable by fluid pressure change in working chamber
KR19980074957A (en) * 1997-03-28 1998-11-05 김영귀 Fixing Nut Supporting Device of Tappet Part for Diesel Engine
KR20070066597A (en) * 2005-12-22 2007-06-27 엘지전자 주식회사 Height adjustment leg of washing machine

Similar Documents

Publication Publication Date Title
CN102003219B (en) Stator vane for axial-flow turbomachine and corresponding stator vane assembly
US20170362963A1 (en) Passive alternator depressurization and cooling system
JP6726618B2 (en) Method of assembling a set of impellers through tie rods, impellers and turbomachines
US20080298972A1 (en) Rotor disk for turbomachine fan
KR100800101B1 (en) Mechanical jack for circulating water pump
CN105156155A (en) Vibration reducing and pressure bearing damping structure for blade root platform of movable blades
US20160290166A1 (en) Quad-tab u-washer
US20150240838A1 (en) Vibration suppression device for jet pump and jet pump
US8920116B2 (en) Wear prevention system for securing compressor airfoils within a turbine engine
CN104395562B (en) For the screw cooling device of fluid machinery
EP2672068B1 (en) Turbine rotor and blade assembly with multi-piece locking blade
CN104220703A (en) Carrier ring
JP5701909B2 (en) Vertical shaft turbomachine
US20110299989A1 (en) Blade union of a turbo machine
CN216975665U (en) A multifunctional base for installation of electromechanical equipment
KR101251459B1 (en) (lifting system for turbine case
US9200539B2 (en) Turbine shell support arm
EP3128134A1 (en) Assembly for a steam turbine and corresponding fixation method
CN111852577B (en) Pump vibration protection device and protection method thereof
KR20130054727A (en) Inflow system of combustion and cooling air in a gas turbinee
EP2913483B1 (en) Method for removing a rotor bucket from a turbomachine rotor wheel
RU2012145207A (en) DEVICE CONTAINING TURBO MACHINE SHOULDER SEGMENT (OPTIONS)
JP2015004300A (en) Combined cycle power generation facility
CN215984837U (en) Fixing device of turbine vibration probe
KR102007138B1 (en) Steam turbine rotor guide device

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20070118

PA0201 Request for examination
E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20071026

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20080125

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20080128

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20110126

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20120120

Start annual number: 5

End annual number: 5

FPAY Annual fee payment

Payment date: 20130117

Year of fee payment: 6

PR1001 Payment of annual fee

Payment date: 20130117

Start annual number: 6

End annual number: 6

FPAY Annual fee payment

Payment date: 20140121

Year of fee payment: 7

PR1001 Payment of annual fee

Payment date: 20140121

Start annual number: 7

End annual number: 7

FPAY Annual fee payment

Payment date: 20150115

Year of fee payment: 8

PR1001 Payment of annual fee

Payment date: 20150115

Start annual number: 8

End annual number: 8

FPAY Annual fee payment

Payment date: 20160120

Year of fee payment: 9

PR1001 Payment of annual fee

Payment date: 20160120

Start annual number: 9

End annual number: 9

FPAY Annual fee payment

Payment date: 20170111

Year of fee payment: 10

PR1001 Payment of annual fee

Payment date: 20170111

Start annual number: 10

End annual number: 10

FPAY Annual fee payment

Payment date: 20180105

Year of fee payment: 11

PR1001 Payment of annual fee

Payment date: 20180105

Start annual number: 11

End annual number: 11

FPAY Annual fee payment

Payment date: 20190107

Year of fee payment: 12

PR1001 Payment of annual fee

Payment date: 20190107

Start annual number: 12

End annual number: 12

FPAY Annual fee payment

Payment date: 20200114

Year of fee payment: 13

PR1001 Payment of annual fee

Payment date: 20200114

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20210104

Start annual number: 14

End annual number: 14

PR1001 Payment of annual fee

Payment date: 20220103

Start annual number: 15

End annual number: 15

PR1001 Payment of annual fee

Payment date: 20230116

Start annual number: 16

End annual number: 16

PR1001 Payment of annual fee

Payment date: 20240116

Start annual number: 17

End annual number: 17

PR1001 Payment of annual fee

Payment date: 20241111

Start annual number: 18

End annual number: 18