KR920006274Y1 - Control circuit for air compressor - Google Patents
Control circuit for air compressor Download PDFInfo
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- KR920006274Y1 KR920006274Y1 KR2019900021280U KR900021280U KR920006274Y1 KR 920006274 Y1 KR920006274 Y1 KR 920006274Y1 KR 2019900021280 U KR2019900021280 U KR 2019900021280U KR 900021280 U KR900021280 U KR 900021280U KR 920006274 Y1 KR920006274 Y1 KR 920006274Y1
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- Prior art keywords
- relay
- parallel
- switch
- auxiliary contact
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/10—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member
- F04C18/107—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 제어회로 구성도.1 is a block diagram of the control circuit of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
PB1 : 시동용 눌룸버튼 스위치 PB2 : 정지용 눌룸버튼 스위치PB1: Start push button switch PB2: Stop push button switch
PB3 : 복귀용 눌룸버튼 스위치 PS1 : 레시버 탱크 압력 감지용 압력 스위치PB3: Return push button switch PS1: Pressure switch for receiver tank pressure detection
PS2 : 오일 압력 감지용 압력 스위치 PS3 : 압축 공기 과상승 방지용 압력 스위치PS2: Pressure switch for detecting oil pressure PS3: Pressure switch for preventing the rise of compressed air
PLl : 오일 압력 이상 표시등 PS2 : 압축공기 과상승 표시등PLl: Oil pressure abnormality indicator PS2: Compressed air over rise indicator
CR1-CR6 : 보조 릴레이 1T-2T : 한시 타이머CR1-CR6: auxiliary relay 1T-2T: time limit timer
본 고안은 공기 압축기에 관한 것으로서, 특히 스크류형 공기 압축기의 시동부하를 많이 걸리지 않토록 하고, 정상압력일때 운전되도록 하며, 공기 압축길ㄹ 안정적으로 운전하도록 하여 위험으로부터 방지할수 있도록한 제어회로에 관한 것이다.The present invention relates to an air compressor, and more particularly, to a control circuit that prevents the starting load of a screw-type air compressor from taking much load, operates at normal pressure, and stably operates the air compression path to prevent from danger. will be.
종래에는, 공기압축기가 운전하던중, 압축기가 정지되면 레시버탱크(Receiver Tank)내의 압축된 공기가 압축기내에 남게 되는데 압축공기가 많이 남아있는 상태에서 운전하게 되면 시동기의 시동부하가 많이 걸려 공기압축기의 무가가 따르며 유압이 낮은 상태에서도, 공기 압축기는 정지되지 않고 계속 운전되어 기어등의 파손등의 우려가 있으며, 공기 압력이 과상승하여도, 제어회로가 없어 계속운전되므로서 안전사고의 위험이 따르는 문제점이 있었다.Conventionally, when the compressor is stopped while the air compressor is in operation, the compressed air in the receiver tank remains in the compressor. When the compressor is operated with a lot of compressed air remaining, the starter load of the starter is high. Even if the hydraulic pressure is low and the hydraulic pressure is low, the air compressor does not stop and continues to operate, which may cause damage to gears, etc. Even if the air pressure rises, there is no control circuit. There was a following issue.
본 고안은 상기한 종래의 제문제점을 해결하기 위하여, 공기압축기의 레시버 탱크내의 압축공기량에 따라, 제어회로가 감지하여 시동이 불가능하게 하거나, 가능하게하여 시동부하가 많이 걸리지 않토록 하고, 급유압력용 압력스위치로 급유압력을 감지하여, 정상일때만 운전되도록 하며, 용량조정장치 등의 작동이상으로, 공기압력이 과상승하였을때는 압력과상승방지용 압력스위치가, 감지하여 공기압축기를 정지하므로, 공기 압축기를 안정적으로 운전하도록 하여 위험으로부터 방지할수 있도록 안출된 것으로서 이하 첨부된 도면에 의하여 본고안을 상세히 설명하면 다음과 같다.The present invention, in order to solve the above-mentioned problems, the control circuit detects the start of the control circuit is impossible to enable or, according to the amount of compressed air in the receiver tank of the air compressor, so as not to take a lot of starting load, The pressure switch detects the oil supply pressure and operates it only when it is normal. When the air pressure rises due to abnormal operation of the capacity adjusting device, etc., the pressure switch for preventing the pressure and rise will detect and stop the air compressor. The present invention will be described in detail with reference to the accompanying drawings, which are designed to stably operate the compressor to prevent from danger.
조작 전원측 RCI과 TCI선상사이에 회로 구성은 시동조건회로와 정지지연용 타이머 한시접점(1Tb1)과 시동용 스위치(PB1)와 오일 압력감지용 릴레이의 보조 접점(CR5b1)파 압축 공기 과상승 방지용 릴레이의 보조접점(CR6b1) 및 시동용 릴레이(CR1)를 직렬로 연결하고 상기 시동용 스위치(PB1)와 병렬로 릴레이 보조접점(CR1a1)을 병렬로 연결하며, 정지용 스위치(PB2)와 공기 압축기 운전용 전자접속기와 보조접점(MCa1)과 정지용 릴레이(CR3)를 직렬로 연결하고 상기 정지용 스위치(PB2)와 병렬로 릴레이 보조접점(CR3a1)을 병렬로 연결하며 또 상기 정지용 릴레이(CR3)와 정지지연용 타이머(1T)를 병렬로 연결하며, 릴레이 보조접점(CRla3), (CR4a2), 공기압축기 운전회로를 각 직렬로 연결하며, 릴레이 보조접점(CR1a4), 공기 압축기 운전용 전자접촉기와 보조접점(MCa2)과 타이머 한시접점(1Tb2)과 보조 릴레이(CR4)를 직렬로 연결한 다음 상기 전자접속기의 보조접점(MC2a2)과 레시버 탱크 압력 감지용 압력 스위치(PS1)를 병렬로 연결라고 상기 타이머한 시접점(1Tb2) 릴레이(CR4)를 직렬로 연결한것과 병렬로 오일 압력기의 초기 운전용 타이머(2T)를 병렬로 연결하며, 복귀용 스위치(PB3)와 오일 압력감지용 압력스위치(PS2), 타이머 한시접점(2Ta), 오일 압력 감지용 릴레이(CR5)를 각 직렬로 연결한 다음 상기 입력스위치(PS2)와 타이머 한지접점(2Ta)을 직렬로 연결한것과 병렬로 릴레이 보조접점(CR5a1)를 연결하고 상기 릴레이(CR5)와 병렬로 표시등(PS1)을 연결하며, 상기복귀용 스위치(PB3)와 압축공기 과상승 방지용 압력스위치(PS3), 릴레이(CR6)를 각 직렬로 연결한 다음 상기 압력스위치(PS3)와 병렬로 릴레이 보조접점(CR6a1)을 연결하고 상기 릴레이(CR6)와 병렬로 표시등(PS2)을 연결하여 작동되도록 구성한 것이다.The circuit configuration between the RCI and TCI wires on the operating power supply side is the start condition circuit, the timer for stopping delay (1Tb1), the auxiliary switch (CR5b1) of the starting switch (PB1), and the oil pressure sensing relay. Connect the auxiliary contact (CR6b1) and the start relay (CR1) in series and connect the relay auxiliary contact (CR1a1) in parallel with the start switch (PB1) in parallel, and for the operation of the stop switch (PB2) and the air compressor. Connect the electronic connector, the auxiliary contact MCa1, and the stop relay CR3 in series, and connect the relay auxiliary contact CR3a1 in parallel with the stop switch PB2 in parallel, and for the stop relay CR3 and the stop delay. The timer 1T is connected in parallel, the relay auxiliary contacts CRla3, CR4a2 and the air compressor operation circuit are connected in series, the relay auxiliary contact CR1a4, the magnetic contactor for the air compressor operation and the auxiliary contact MCa2. And timer 1 The time contact point 1Tb2 in which the timer 1Tb2 and the auxiliary relay CR4 are connected in series, and then the auxiliary contact MC2a2 of the electronic connector and the pressure switch PS1 for detecting the tank pressure of the receiver are connected in parallel. In parallel with the relay (CR4) connected in series, the timer for initial operation of the oil pressure unit (2T) is connected in parallel, and the return switch (PB3), oil pressure detection pressure switch (PS2), and timer time contact ( 2Ta), the oil pressure sensing relay (CR5) is connected in series, and then the relay auxiliary contact (CR5a1) is connected in parallel with the input switch (PS2) and the timer limit contact (2Ta) in series, and the relay Connect the indicator light PS1 in parallel with the CR5, and connect the return switch PB3, the compressed air overpressure preventing switch PS3, and the relay CR6 in series, and then the pressure switch PS3. ) And the relay auxiliary contact CR6a1 in parallel with the relay CR6. It is configured to operate by connecting the indicator light (PS2) in parallel with.
이와같이 구성된 본고안은 시동조건이 만족한 상태에서 시동용 스위치(PB1)을 누르면 시동용 릴레이(CR1)가 여자되며 자기유지접범(CR1a1)에 의해 계속 여자상태를 유지하고 릴레이 보조접점(CR1a4)이 도통 상태에서 레시비 탱크내의 압력감지용 압력스위치(PS1)의 설정 압력보다 레시버 탱크내의 압력이 낮을 경우 압력스위치(PS1)가 도통상태가 되므로 레시버 탱크 초기 압력 상태 감지용 릴레이(CR4)는 여자 상태가 되며 릴레이보조접점(CR1a3),(CR4n2)가 도통 상태가 되어 공기 압축기는 시동을 하여 운전하게 된다.In this configuration, the starter relay (CR1) is excited when the start switch (PB1) is pressed while the start condition is satisfied, and the relay auxiliary contact (CR1a4) is kept excited by the self-maintaining contact (CR1a1). In the conduction state, when the pressure in the receiver tank is lower than the set pressure of the pressure sensing pressure switch PS1 in the receiver tank, the pressure switch PS1 is in the conduction state. Excitation is performed, and the relay auxiliary contacts CR1a3 and CR4n2 become conductive, and the air compressor starts and operates.
공기 압축기가 운전을 하게 되면 점차적으로 압력이 상승하게 되며 이때 압력스위치(PS1)는 개방상태가 되는데 공기압축기 운전용 전자접촉기의 보조접점(MCa2)이 도통상태가 되어 있으므로 릴레이(CR4)는 여자상태가 지속되어 공기압축기는 운전을 계속하게 된다. 공기 압출기가 운전을 하여 정상 압력이 되면 오일압력 감지용 압력스위치(PS2)가 개방상태가 되어 릴레이(CR5)는 무여자 상태로 있게 된다. (초기 작동 지연 타이머(2T)는 공기 압출기가 운전을 하여 정상 압력에 도달할 때까지의 시간을 설정해 놓았으므로 타이머 한시접점(2Ta)은 도통상태로 되어있다.)When the air compressor operates, the pressure gradually increases. At this time, the pressure switch PS1 is in an open state. Since the auxiliary contact MCa2 of the electromagnetic contactor for air compressor operation is in a conductive state, the relay CR4 is in an excited state. The air compressor continues to operate. When the air extruder is operated and the normal pressure is reached, the pressure switch PS2 for oil pressure sensing is opened, and the relay CR5 is in an unexcited state. (Initial operation delay timer 2T has set the time until the air extruder starts to reach normal pressure, so the timer time limit contact 2Ta is in a conductive state.)
오일배관이 막히거나 오일이 모자라거나 하면 오일 압력이 떨어져 압력스위치(PS2)의 설정압력 이하가 되어 압력스위치(PS2)가 도통상태가 되므로 릴레이(CR5)가 여자되어 릴레이 보조 접짐(CR5b1)이 개발되어 릴레이(CR1)가 무여자 상태가 되므로 릴레이 보조 접점(CR1a3)이 개방상태가 되어 공기 압출기를 자동으로 정지시키므로 공기 압출기를 보호하게 된다.If the oil pipe is clogged or the oil is low, the oil pressure drops and the pressure switch PS2 becomes below the set pressure of the pressure switch PS2. Therefore, the relay CR5 is excited and the relay auxiliary folding (CR5b1) is developed. Since the relay CR1 becomes the non-excitation state, the relay auxiliary contact CR1a3 becomes the open state and automatically stops the air extruder, thereby protecting the air extruder.
공기 압출기가 운전중 용량조정장치 등의 작동이상으로 공기 압력이 과상승하였을때는 압력 과상승방지용 압력스위치(PS3)가 작동하여 도통상태가 되므로 릴레이(CR6)가 여자되어 릴레이 보조접점(CR6b1)이 개방되어 릴레이(CR1)가 무여자상태가 되므로 릴레이 보조접점(CR1a3)이 개방 상태가 되어 공기압출기룰 자동으로 정지시킨다. 이상 설명한 바와 같이 공기 압축기가 운전하던중 정지되어 레비서 탱크내의 압축공기가 설정압(압력 스위치로 설정)에 따라 시동을 유무를 판단하므로서 공기압축기에 무리가 가지 않는것이고 급유압력용스위치로 오일급유압력을 설정하여 안정적으로 공기압축기를 운전할 수 있도록 하며 압력 과상승 방지용 압력스위치로 공기압력의 과상승하는 것을 감지하여 작동되므로서 사고의 위험을 방지할 수 있는 매우 실용적인 고안이다.When the air extruder rises due to abnormal operation of the capacity adjusting device during operation of the air extruder, the pressure increase prevention pressure switch (PS3) is activated and becomes a conductive state, so the relay (CR6) is excited and the relay auxiliary contact (CR6b1) The relay auxiliary contact CR1a3 enters the open state because the relay CR1 becomes unexcited and automatically stops the air extruder. As described above, the air compressor stops during operation and judges whether the compressed air in the Levis tank is started according to the set pressure (set by the pressure switch). It is possible to operate the air compressor stably by setting the pressure, and it is a very practical design to prevent the risk of an accident by operating by detecting the increase of the air pressure with a pressure switch for preventing the pressure increase.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900021280U KR920006274Y1 (en) | 1990-12-28 | 1990-12-28 | Control circuit for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900021280U KR920006274Y1 (en) | 1990-12-28 | 1990-12-28 | Control circuit for air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920012411U KR920012411U (en) | 1992-07-25 |
| KR920006274Y1 true KR920006274Y1 (en) | 1992-09-17 |
Family
ID=19308037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900021280U KR920006274Y1 (en) | 1990-12-28 | 1990-12-28 | Control circuit for air compressor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920006274Y1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101434311B1 (en) * | 2013-02-19 | 2014-08-27 | 현대로템 주식회사 | Air compressor starting delay circuit of railway vehicles and the railway vehicles |
| CN114263589B (en) * | 2021-12-16 | 2024-02-27 | 交控科技股份有限公司 | Air compressor starting control system and starting control method |
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1990
- 1990-12-28 KR KR2019900021280U patent/KR920006274Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR920012411U (en) | 1992-07-25 |
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