WO2020111654A1 - Turbocompresseur capable de fonctionner dans une région de pompage - Google Patents

Turbocompresseur capable de fonctionner dans une région de pompage Download PDF

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Publication number
WO2020111654A1
WO2020111654A1 PCT/KR2019/015998 KR2019015998W WO2020111654A1 WO 2020111654 A1 WO2020111654 A1 WO 2020111654A1 KR 2019015998 W KR2019015998 W KR 2019015998W WO 2020111654 A1 WO2020111654 A1 WO 2020111654A1
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WO
WIPO (PCT)
Prior art keywords
turbo compressor
surge
machine means
compressor machine
air
Prior art date
Application number
PCT/KR2019/015998
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English (en)
Korean (ko)
Inventor
김민수
Original Assignee
터보윈 주식회사
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Filing date
Publication date
Application filed by 터보윈 주식회사 filed Critical 터보윈 주식회사
Publication of WO2020111654A1 publication Critical patent/WO2020111654A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control

Definitions

  • the present invention relates to a turbo compressor capable of operating in the surge region, and more specifically, to allow the turbo compressor to operate for a certain period of time in a surge region in addition to the normal region in which normal operation is performed, to temporarily generate surge.
  • the present invention relates to a turbo compressor capable of operating in a surge area, which improves the performance continuity and efficiency of the turbo compressor by preventing a stoppage of the turbo compressor.
  • a turbo compressor is a mechanical device that compresses air drawn from the outside to increase pressure and speed.
  • the cause of the surge is when the flow rate of the suction part for sucking air is small, when the pressure of the suction part rises, and when the discharge flow rate is suppressed by a valve or the like and the pressure increases as the flow rate decreases and the control system It occurs when the speed suddenly increases due to a malfunction.
  • the present invention while maintaining the operation of the turbo compressor, is to provide a turbo compressor device that solves the conventional problem that can overcome the temporary surge (surge) caused by various factors.
  • a performance map that includes a plurality of compressors connected in series and an inlet guide vane and a surge band provided at the front end of each compressor and whose opening and closing angle is adjusted by an actuator, so that the operating flow point of the multistage compressor belongs to the surge band.
  • a control device that includes an operation flow point deviating from the surge band is introduced into the compressor of each stage.
  • a multistage compressor capable of preventing surge by opening the inlet guide vane of each stage and a surge control method using the same will be.
  • a surge current setting unit for setting the surge current using a change in motor current and pressure at a predetermined point based on the system pressure of the turbo air compressor, and a measurement unit for measuring the motor current and motor voltage from the motor driving the compression impeller.
  • a current comparison unit that determines whether a motor current is loaded by comparing the surge current set by the surge current setting unit with the motor current measured by the measurement unit, and when the load generation of the motor current is confirmed through the current comparison unit
  • the speed calculation unit calculates a surge access speed according to the difference by comparing the current current corresponding to the difference between the preset surge motor current and the preset current to the previous current stored in the speed information DB, and the speed calculation unit
  • a surge change determination unit comparing the surge access speed with a margin width representing the surge line movement current, and a surge by controlling the BOV while changing the control speed based on the state of the pressure change detected through the comparison in the surge change determination unit
  • Anti-surge automatic control technology which includes a BOV control unit that prevents you from approaching the
  • the prior art 1 to the prior art 2 are the same technical field as the present invention, and there are published means and methods for coping with the occurrence of surge, but the present invention is to solve the problem (object of the invention) It is different from.
  • the prior art 1 to the prior art 2 is an invention for forcibly driving the surge band of the turbo compressor when the surge or overload occurs, or to stop the operation, or to generate a surge.
  • the present invention for maintaining operation within a range that does not damage the turbo compressor.
  • Patent Document 1 Republic of Korea Patent Publication No. 10-2016-0062942 (2016.06.03.)
  • Patent Document 2 Republic of Korea Patent Registration No. 10-1785063 (2017.09.28.)
  • An object of the present invention is to provide a turbo compressor device that allows a turbo compressor to operate for a predetermined period of time in a surge region as well as a normal region.
  • An object of the present invention is to provide a turbo compressor device for instantaneous expansion and control.
  • Another object of the present invention is to provide a turbo compressor device that improves performance persistence and efficiency of a turbo compressor by controlling operation in a surge region of the turbo compressor.
  • a turbo compressor machine for sucking and compressing the inflowing external air and discharging compressed air
  • turbo compressor machine means is stably operated for a certain period of time even in a surge area.
  • An inverter for supplying power to the turbo compressor machine means
  • a surge region detecting and moving unit that controls the turbo compressor machine to operate stably for a certain period of time even in a surge region
  • a data storage unit for storing data on the operation history, surge operation history and surge history of the turbo compressor machine means
  • control unit for controlling the inverter, the operation panel, the surge area detection and moving unit, and the data storage unit
  • turbo compressor machine By controlling the turbo compressor machine means to maintain stable operation for a certain period of time even in the surge region, driving in the surge region is induced to operation in the normal region.
  • the operating range of the turbo compressor is expanded so that the turbo compressor operates for a certain period of time in the surge region as well as the normal region.
  • the operation of the turbo compressor is not stopped unconditionally, and it is determined whether the operation is in a temporary surge region, and the control is performed to move from the operation of the surge region to operation of the normal region By doing so, the operation of the turbo compressor is maintained within a wider operating range.
  • FIG. 1 is a block diagram showing a turbo compressor capable of driving in the surge area according to the present invention.
  • FIG. 2 shows a schematic diagram of a turbo compressor capable of driving in the surge area according to the present invention.
  • FIG. 3 shows a schematic piping and instrumentation diagram for a turbo compressor capable of operation in the surge area of the present inventor.
  • Figure 4 is a simplified flow chart showing the operation flow for the turbo compressor that can be operated in the surge area of the present invention.
  • FIG. 5 shows an example of a performance table of a gauge pressure-volume flow rate relationship for a turbo compressor capable of operation in the surge region according to the present invention.
  • FIG. 1 is a block diagram of a turbo compressor capable of driving in the surge region of the present inventor
  • FIG. 2 is a schematic diagram of a turbo compressor capable of driving in the surge region of the inventor
  • FIG. It shows a schematic piping and instrumentation diagram for a turbo compressor that can be operated.
  • Turbo compressor machine means for sucking and compressing the inflowing external air to discharge compressed air
  • turbo compressor control means 200 for driving the turbo compressor machine means 100
  • turbo compressor machine means 100 operates stably for a certain period of time even in the surge area SR.
  • the operation of the turbo compressor machine means 100 is not stopped even in the surge region SR, and the operation can be stably maintained.
  • it is to provide a turbo compressor device that maximizes the operation continuity and efficiency of the turbo compressor machine means (100).
  • the present invention when it is determined that the operation in the surge region SR due to a temporary surge, the operation of the turbocompressor machine means 100 is maintained, thereby supplying the turbocompressor 130 and the line. By stably operating and flowing the compressed air flow, the efficiency of the turbo compressor 130 is maximized.
  • the operation in the surge region SR of the turbo compressor machine means 100 generated due to the temporary surge that does not damage the turbo compressor machine means 100 is the operation in the normal region CR
  • the turbocompressor machine means 100 is not stopped even in a temporary surge, so that the operation can be stably maintained.
  • turbo compressor control means 200 that controls the operation of the turbo compressor machine means 100 in the normal region CR and the surge region SR due to temporary surge will be described in more detail.
  • An inverter 210 that supplies power to the turbo compressor machine means 100;
  • a surge region detecting and moving unit 230 which controls the turbo compressor machine means 100 to stably operate even within a surge region SR;
  • a data storage unit 240 for storing data on the operation history, surge operation (SR) history, and surge history of the turbo compressor machine means 100;
  • It consists of an inverter 210, a control panel 220, a surge area detection and moving unit 230, a control unit 250 for controlling the data storage unit 240;
  • a surge region detection unit 231 that detects whether the operation state of the turbo compressor machine means 100 is an operation in the normal region CR or an operation that has entered the surge region SR;
  • An automatic control valve activating unit that automatically adjusts the electric valve MV according to the degree of opening/closing set by the administrator when it is detected by the surge region detecting unit 231 as an operation entering the surge region SR ( 232);
  • a surge region operation maintenance unit 233 which maintains the operation of the turbo compressor machine means 100 by the operation of the automatic control valve activation unit 232;
  • the turbo compressor machine means 100 operating in the surge region SR by the surge region operation maintaining unit 233 causes damage to the turbo compressor machine means 100 rather than a temporary surge operation.
  • surge surge
  • the automatic control valve activation unit 232 for automatically adjusting the electric valve 160 according to the degree of opening and closing set by the administrator,
  • Electricity according to the duration of the surge generated in the turbo compressor machine means 100 outside the range set by the first automatic control valve range setting module 233a and the second automatic control valve range setting module 233b Consists of a third automatic control valve range setting module (233c) to set the degree of opening and closing ( ⁇ ) of the valve 160 to operate within the surge area (SR),
  • the range of the first automatic control valve range setting module 233a is such that when the surge persists within 1 [sec] to 5 [sec], the electric valve 160 is opened from 1 [%] to 40 [%]. Set it up,
  • the range of the second automatic control valve range setting module 233b is such that when the surge persists within 6 [sec] to 10 [sec], the electric valve 160 is opened from 40 [%] to 70 [%]. Set it up,
  • the range of the third automatic control valve range setting module 233c is such that when the surge persists within 10 [sec] to 13 [sec], the electric valve 160 is opened to 70 [%] to 100 [%].
  • the degree of opening and closing of the electric valve 160 in steps of the duration of the surge the operation of the turbocompressor machine means 100 in the surge area SR is a normal area CR ) To flexibly expand the operating range to be able to move by driving.
  • 0 [%] means the complete closing of the electric valve 160
  • 100 [%] means the complete opening of the electric valve 160.
  • turbo compressor control means 200 the turbo compressor control means 200
  • the administrator can use the dedicated terminal (SP) to set the operation information of the turbo compressor machine means 100, to check the operation status Dedicated terminal communication unit 260; further comprising, by configuring,
  • the state of the turbo compressor machine means 100 can be monitored in real time at any time within the area connected to the communication network IT. By checking and setting, stable operation can be maintained.
  • control unit 250 should also be configured to control the dedicated terminal communication unit 260.
  • turbo compressor machine means 100 for sucking and compressing the introduced air to discharge compressed air
  • a body housing 110 having a predetermined size in which a certain space is formed
  • An air inlet part 120 formed on one side of the main body housing 110;
  • a turbo compressor that is located inside the main body housing 110 and sucks air flowing into the air inlet 120 through a two-stage compression path (DR) to discharge compressed air compressed in two [stages] ( 130);
  • a compressed air discharge cone pipe 140 coupled to the turbo compressor 130 to flow compressed air discharged through the turbo compressor 130 to the outside of the main body housing 110;
  • a turbo compressor silencer 150 that suppresses and lowers noise generated from the inside of the body housing 110;
  • An electric valve 160 that automatically adjusts the degree of opening and closing due to surge
  • the turbo compressor 130 is large,
  • a turbo compressor motor 134 formed of a rotor R and a stator S rotating the first impeller 132 and the second impeller 133;
  • cooling means unit 135 to prevent the temperature rise inside the turbo compressor casing 131;
  • the turbo compressor machine means 100 is operated. ( ⁇ S400, Turbo compressor machine means operation step)
  • the surge area detection and moving unit 230 automatically opens and closes the electric valve 160 in the range of 0 [%] to 100 [%], ( ⁇ S800, step of opening and closing the electric valve)
  • the turbo compressor control means 200 determines whether the operation is in the surge area SR due to a temporary surge, or in the surge area SR that is likely to be damaged by the turbo compressor machine means 100, The operation of the turbo compressor machine means 100 is determined.
  • the turbo compressor machine means 100 is completely stopped and protected from surge. ( ⁇ S1000, Operation stop step)
  • the windproof valve 170 For reference, among the components of the present invention, the windproof valve 170,
  • It is installed on the compressed air discharge cone pipe 140, and is formed to effectively suppress the pulsation phenomenon generated when the turbo compressor 130 is started and the pulsation phenomenon that may occur during operation of the next rank during driving.
  • turbo compressor 130 applied to the present invention refers to a device for discharging compressed air having a pressure ratio of 2.0 or more and an air pressure rise of 100 [kPa] or more based on the inlet and outlet static pressure ratios. .
  • stop means that the turbo compressor machine means 100 is completely stopped, and “stop” means that among the components of the turbo compressor machine means 100, the turbo compressor 130 ) Means the stopped state.
  • the pressure unit “kPa” is expressed as “[kPa]” so that it can be recognized immediately in a specific unit.
  • a state of the turbo blower machine means 100 is output to the operation panel 220 so that the administrator can immediately check the flow rate, pressure, rotation speed, temperature, and the like.
  • the present invention relates to a turbo compressor that can be operated in a surge area, and can be applied to contribute to the enhancement of various industrial fields to which a turbo compressor is applied, including manufacturing, sales, and management industries.

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

Abstract

La présente invention concerne un turbocompresseur capable de fonctionner dans une région de pompage, et, plus spécifiquement, un turbocompresseur capable de fonctionner dans une région de pompage, le turbocompresseur pouvant fonctionner pendant un temps prédéfini dans une région de pompage, ainsi que dans une région normale dans laquelle le turbocompresseur fonctionne normalement, de façon à prévenir un arrêt momentané du turbocompresseur en raison d'un pompage survenant de façon temporaire, et à améliorer ainsi la durabilité et l'efficacité de performance du turbocompresseur.
PCT/KR2019/015998 2018-11-27 2019-11-21 Turbocompresseur capable de fonctionner dans une région de pompage WO2020111654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0148436 2018-11-27
KR1020180148436A KR101991784B1 (ko) 2018-11-27 2018-11-27 서지 영역에서의 운전이 가능한 터보 컴프레서

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WO2020111654A1 true WO2020111654A1 (fr) 2020-06-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113567104A (zh) * 2021-08-25 2021-10-29 中国电子科技集团公司第十六研究所 一种气浮涡轮冷却器自动启停试验装置及其试验方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594051A (en) * 1984-05-14 1986-06-10 Dresser Industries, Inc. System, apparatus, and method for detecting and controlling surge in a turbo compressor
JP2000080999A (ja) * 1999-09-24 2000-03-21 Hitachi Ltd インバ―タ装置
KR101450298B1 (ko) * 2007-08-21 2014-10-13 가드너 덴버 도이칠란트 게엠베하 압축기 제어의 개선
KR101761931B1 (ko) * 2009-03-30 2017-08-04 티마익 코포레이션 컴프레서 서지 제어 시스템 및 방법
KR20170102736A (ko) * 2016-03-02 2017-09-12 한국전자통신연구원 원심 압축기의 서지 방지 장치 및 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102251736B1 (ko) 2014-11-26 2021-05-14 현대중공업터보기계 주식회사 다단 압축기 및 이를 이용한 서지 제어방법
KR101785063B1 (ko) 2015-06-24 2017-10-12 금오기전 주식회사 안티 써지 자동제어기술을 적용한 터보 공기압축기의 제어장치 및 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594051A (en) * 1984-05-14 1986-06-10 Dresser Industries, Inc. System, apparatus, and method for detecting and controlling surge in a turbo compressor
JP2000080999A (ja) * 1999-09-24 2000-03-21 Hitachi Ltd インバ―タ装置
KR101450298B1 (ko) * 2007-08-21 2014-10-13 가드너 덴버 도이칠란트 게엠베하 압축기 제어의 개선
KR101761931B1 (ko) * 2009-03-30 2017-08-04 티마익 코포레이션 컴프레서 서지 제어 시스템 및 방법
KR20170102736A (ko) * 2016-03-02 2017-09-12 한국전자통신연구원 원심 압축기의 서지 방지 장치 및 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113567104A (zh) * 2021-08-25 2021-10-29 中国电子科技集团公司第十六研究所 一种气浮涡轮冷却器自动启停试验装置及其试验方法

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