KR200182449Y1 - Device for informing the water level of liquid level control apparatus - Google Patents

Device for informing the water level of liquid level control apparatus Download PDF

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Publication number
KR200182449Y1
KR200182449Y1 KR2019990025420U KR19990025420U KR200182449Y1 KR 200182449 Y1 KR200182449 Y1 KR 200182449Y1 KR 2019990025420 U KR2019990025420 U KR 2019990025420U KR 19990025420 U KR19990025420 U KR 19990025420U KR 200182449 Y1 KR200182449 Y1 KR 200182449Y1
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South Korea
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alarm
transistor
liquid level
buzzer
water level
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KR2019990025420U
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Korean (ko)
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이용종
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이용종
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

본 고안은 후로트레스(floatless) 액면제어기의 수위경보장치에 관한 것으로 이것은 특히 감지전극, 1개만을 추가한 간단한 회로에 경보부져 동작시 부저음의 찌그러짐과 역전류에 의한 고장을 방지한 액면제어기, 수위경보장치의 개량에 관한 것이다.The present invention relates to a water level alarm device for a floatless liquid level controller. In particular, it is a liquid level controller which prevents the crushing of a buzzer sound and the failure caused by reverse current. The present invention relates to an improvement of an alarm device.

종래의 수위경보장치는 설치가 불편하고, 감지부를 통한 외부유도전압이나, 부져의 역전류에 의해 경보음 발생이 불안정하거나, 부져 구동용 트랜지스터가 파괴되는 문제점이 발생되었었다.The conventional water level alarm device is inconvenient to install, and an alarm sound is unstable due to an external induction voltage through the detector or a reverse current of the buzzer, or the buzzer driving transistor is broken.

이를 위해 본 고안에서는 저수조내에 설치하는 액면제어기 감지전극(E1-E3)의 상단부에 설치한 수위경보용 감지전극(E0)를 전해 컨텐서(C1)을 통해 저항(R3)을 거쳐 트랙지스터(Q3) 의 베이스(B)측에 접속하고 트랜지스터(Q3) 의 콜렉터에는 경보부져(A)와 전해컨텐서(C2)를 전원 정류부(RET1) 출력측에 병렬결선하고, 트랜지스터(Q3)의 콜렉터(C)와 에미터(E)간에는 다이오드(D1)를 연결하여 역전류를 차단함으로써, 경보음의 찌그러짐과 구동용 트랜지스터(Q3) 의 파손을 방지할 수 있도록 한 것이다.In the subject innovation for this purpose a liquid level controller sensing electrode (E 1 -E 3) resistance (R 3) deliver the water level for the alarm detection electrodes (E 0) is installed at the upper end through the contending standing (C 1) of the installation in the water tank Connect to the base B side of the track resistor Q 3 , and connect the alarm buzzer A and the electrolytic capacitor C2 to the output side of the power rectifier RET 1 in parallel to the collector of the transistor Q 3 . A diode D 1 is connected between the collector C and the emitter E of Q 3 to cut off the reverse current to prevent distortion of the alarm sound and damage of the driving transistor Q 3 . will be.

Description

액면제어기의 수위경보장치Water level alarm device of liquid level controller

본 고안은 액면제어기의 수위경보장치에 관한 것이다.The present invention relates to a water level alarm device of a liquid level controller.

종래 별도의 수위경보장치는 설치가 번거롭고 제조원가가 상승됨은 물론 감지 전극을 통한 외부유도 전압이나, 부져의 역전류에 의해 경보음 발생이 불안정하고, 부져 구동용트랜지스터가 파손되는 문제점이 발생되었었다.The conventional separate water level alarm device is troublesome to install and the manufacturing cost is increased, as well as the occurrence of alarm sound is unstable due to the external induction voltage through the sensing electrode, the reverse current of the buzzer, the buzzer driving transistor was broken.

본 고안은 상기와 같은 문제점을 해결하기 위해서 기존의 액면제어기에 경보용 감지전극 1 개만을 추가 하고, 경보부져음 안정과 구동트랜지스터 보호회로를 구성하여, 간단하고 고장이 없는 수위경보장치를 안출한 것으로 이를 첨부된 도면에 의해 상세히 설명하면 다음과 같다.In order to solve the above problems, the present invention adds only one sensing electrode to the existing liquid level controller, and constitutes a simple, trouble-free water level alarm device by configuring an alarm buzzer sound and a driving transistor protection circuit. It will be described in detail by the accompanying drawings as follows.

감지전극(E1)(E2)(E3)에 흐르는 정류회로(RET2)의 부극성 전류에 의하여 작동되는 릴레이(RL1)및 모터(M1) 펌프(P1) 를 갖는 공지의 '―' 부궤환 회로에 있어서, 감지전극(E0) 를 전해 컨텐서(C1) 를 통해 저항(R3)를 거쳐 트랜지스터(Q3) 의 베이스측에 접속하고, 트랜지스터(Q3) 콜텍터에는 경보부져(A)와 전해컨텐서(C2)를 전원(RET1)에 병렬 결선한 다음 트랜지스터(Q3)의 콜렉터(C)와 에미터(E)간에는 다이오드(D1)를 연결하여서된 것으로 미설명부호 T 는 트랜스이다.Known with relay RL 1 and motor M 1 pump P 1 operated by the negative current of rectifier circuit RET 2 flowing through sensing electrodes E 1 (E 2 ) (E 3 ). In the negative feedback circuit, the sensing electrode E 0 is connected to the base side of the transistor Q 3 via an electrolytic capacitor C 1 via a resistor R 3 , and the transistor Q 3 is called. In the detector, an alarm buzzer (A) and an electrolytic capacitor (C2) are connected in parallel to the power supply (RET 1 ), and then a diode (D 1 ) is connected between the collector (C) and the emitter (E) of the transistor (Q 3 ). Unexplained symbol T is trans.

이와같이 본 고안은 감지전극(E0) 1개만을 추가한 간단한 설치와 경보부져 동작시 발생되는 역전류에 의한 구동용 트랜지스터 파괴와 경보음이 찌그러짐을 방지한 수위경보 장치로써 고장이 없고, 원가가 절감된 실용적인 고안이다.Thus the present design is the sensing electrode (E 0) there is no malfunction as a driving transistor destroyed and warning sound for by the reverse current generated when a simple installation, adding only one and the alarm buzzer operation to prevent distortion level alarm system, the costs are It is a practical design saved.

제 1 도는 본 고안에 의한 액면 제어기의 수위경보장치 회로구성도1 is a circuit diagram of the water level alarm device of the liquid level controller according to the present invention

* 도면의 주요부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

E1-E3: 감지전극 RET2: 정류회로E 1 -E 3 : sensing electrode RET 2 : rectifier circuit

Q1Q2: 트랜지스터 RLI: 릴레이Q 1 Q 2 : Transistor RLI: Relay

M1: 모터 P1: 펌프 E0: 수위경보용 감지전극M 1 : Motor P 1 : Pump E 0 : Detection electrode for level alarm

C1: 전해컨텐서 R3: 저항C 1 : electrolytic capacitor R 3 : resistance

Q3: 트랜지스터 RET1: 정류부Q 3 : Transistor RET 1 : Rectifier

A: 경보용 부져 D1: 역전류방지다이오드A: Alarm buzzer D 1 : Reverse current prevention diode

C2: 전해컨텐서C2: electrolytic capacitor

이와같이된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention in this way as follows.

전원 정류회로(RET1) 의 평활한 직류전압이 회로의 각부에 인가된 상태에서 저장수조내의 오수가 감지전극(E1)에 이르러 만수상태가 되면 제 1, 제 3 감지전극(E1-E3) 이 도통되어 정류회로(RET2)의 부극성 전류출력이 저항(R1)를 통해 트랜지스터(Q1)로 인가되므로 트랜지스터(Q1)가 차단되고, 그 후단의 트랜지스터(Q2)에는 전원 정류부(RET1) 의 + 전압이 저항(R2)를 통해 인가되어 트랜지스터(Q2) 를 도통시키므로 릴레이(RL1)가 동작되어 저장수조측의 가동접점(C)가 고정접점(a)에 접속됨 [이후로는 제 2 의 감지전극(E2)에 의해 수위를 감지하게함] 과 동시에 접점(RL1-a)가 ON 되어 모터(M1) 펌프(P1) 는 배수운전을 개시하여 수위는 제 1 감지전극(E1)이 하로 하강을 하게 된다.If the sewage in the storage tank reaches the sensing electrode E 1 while the smooth DC voltage of the power rectifier circuit RET 1 is applied to each part of the circuit, the first and third sensing electrodes E 1 -E 3 ) Since the negative current output of the rectifying circuit RET 2 is applied to the transistor Q 1 through the resistor R 1 , the transistor Q 1 is cut off, and the transistor Q 2 at a later stage Since the positive voltage of the power rectifier RET 1 is applied through the resistor R 2 to conduct the transistor Q 2 , the relay RL 1 is operated so that the movable contact C on the storage tank side is the fixed contact (a). [After this, the water level is detected by the second sensing electrode E 2 ] and the contact point RL 1-a is turned on so that the motor M 1 pump P 1 performs drainage operation. In the beginning, the water level is lowered by the first sensing electrode E 1 .

이때 만일 펌프가 고장나 배수가 중단 되거나 갑자기 많은 매수물량이 흘러넘쳐, 수위가 반대로 상승되어 감지전극(E0) 수위에 이를 경우 제 3 감지전극 (E3)과 경보용 감지전극(E0) 간에는 도통되어 A, C + 전압이 전해컨턴서(C1)를 통해 저항(R2)를 거쳐 베이스에 인가되어 트랜지스터(Q3)를 도통시키므로, 경보부져(A)가 동작되고, 역전류 흐름을 전해컨텐서(C2)와 다이오드(D1)으로 차단하여 구동용트랜지스터(Q3)의 파손을 방지함은 물론, 안정되고 보다정확한 경보음을 부져(A)가 발생하여 오수가 넘쳐 흐르기 직전에 위험 신호를 알려주게되는 것이다.At this time, if the pump breaks down, drainage stops, or suddenly a large amount of water overflows, the level rises in the opposite direction and reaches the level of the sensing electrode E 0. The third sensing electrode E 3 and the sensing sensing electrode E 0 The conduction between the A and C + voltages is applied to the base through the resistor R 2 through the electrolytic capacitor C 1 to conduct the transistor Q 3 so that the alarm buzzer A is operated and the reverse current flows. Is blocked by the electrolytic capacitor (C2) and diode (D 1 ) to prevent damage to the drive transistor (Q 3 ), as well as a stable and more accurate alarm sound (A) is generated immediately before the overflow Will signal a danger signal.

Claims (1)

감지전극(E1-E3) 에 흐르는 정류회로(RET2)의 부극성 전류를 트랜지스터(Q1)에서 1 차 증폭한 후 트랜지스터(Q2) 로 릴레이(RL1) 및 그 접점에 연결된 펌프(P1)의 모터(M1) 가 작동되게한 공지의 액면제어기 회로에 있어서A pump first connected to the relay RL 1 and its contacts to the transistor Q 2 after amplifying the negative current of the rectifying circuit RET 2 flowing through the sensing electrodes E 1 -E 3 first in the transistor Q 1 . In the well-known liquid level controller circuit which causes the motor M 1 of (P 1 ) to operate, 수위경보용 감지전극(E0)을 전해 컨텐서(C1)를 통해 저항(R3)를 거쳐 트랜지스터(Q3)의 베이스에 접속하고, 트랜지스터(Q3)의 콜렉터에는 경보용부져(A)와 전해컨텐서(C2)를 전원(RET1)에 병렬결선한 다음, 트랜지스터(Q3)의 콜렉터(C)와 에미터(E)간에는 다이오드(D1) 를 연결하여서된 액면제어기의 수위경보장치.The detection electrode E 0 for level alarm is connected to the base of the transistor Q 3 via an electrolytic capacitor C 1 via a resistor R 3 , and an alarm buzzer A is connected to the collector of the transistor Q 3 . ) And the electrolytic capacitor (C2) in parallel to the power supply (RET 1 ), and then the level of the liquid level controller by connecting a diode (D 1 ) between the collector (C) and the emitter (E) of the transistor (Q 3 ) Alarm device.
KR2019990025420U 1999-11-18 1999-11-18 Device for informing the water level of liquid level control apparatus KR200182449Y1 (en)

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KR2019990025420U KR200182449Y1 (en) 1999-11-18 1999-11-18 Device for informing the water level of liquid level control apparatus

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