CN2121260U - Electric heating distillation device protector - Google Patents
Electric heating distillation device protector Download PDFInfo
- Publication number
- CN2121260U CN2121260U CN 92206727 CN92206727U CN2121260U CN 2121260 U CN2121260 U CN 2121260U CN 92206727 CN92206727 CN 92206727 CN 92206727 U CN92206727 U CN 92206727U CN 2121260 U CN2121260 U CN 2121260U
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- CN
- China
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- control
- circuit
- output
- pin
- electrothermic retorting
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- 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.)
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Abstract
The utility model relates to an electric heating distillation device protector. When the water supply of an electric heating distillation device is stopped, the protector can automatically switch off the power and give an alarm; when water is supplied, the protector can automatically switch on the power and stop alarming; so the protector can be prevented from being burned out caused by that the water in an evaporator is evaporated off. The protector is mainly composed of integrated circuits and has the characteristics of stable operation, high sensitivity, etc.
Description
The utility model is a kind of electrothermic retorting unit protection device, can prevent to burn when supplying water accidental stopping the electrothermic retorting device.
When utilizing the electrothermic retorting device to manufacture distilled water in the past; when running water is cut off the water accidentally; usually, the water in the distiller makes it to burn owing to being evaporated to do; this protector promptly is when cutting off the water accidentally the power supply of electrothermic retorting device to be cut off at this situation automatically; send alarm signal simultaneously, thereby the electrothermic retorting device is played a protective role.
The purpose of this utility model is can control automatically the power supply of electrothermic retorting device into behind additional this protector of electrothermic retorting device, can not report to the police automatically or sends alarm signal according to having or not of supplying water again.
The process that task of the present utility model is finished is: formed warning circuit by NE555 IC 2 and IC3, CD4093 NAND gate IC 4, triode BG1, BG2 and bidirectional triode thyristor BCR have formed control circuit.When tap water supply just often, according to the signal of control probe input control circuit, the control signal of control circuit output makes the BG1 conducting, controllable silicon BCR conducting, A.C. contactor JC adhesive, the work of electrothermic retorting device.Triode BG2 is ended, and the audio frequency oscillator that IC3 forms is not worked; When the accidental interruption of running water, according to the signal of the control circuit of controlling the probe input, the control signal of control circuit output is ended BG1, controllable silicon BCR ends, and cuts off the power supply of electrothermic retorting device automatically, makes the BG2 conducting simultaneously, alarm signal is sent in the audio frequency oscillator work that IC3 forms.
Below in conjunction with drawings and Examples the utility model is described specifically.
Fig. 1 is a shape assumption diagram of the present utility model
Fig. 2 is a cut-away view of the present utility model
Fig. 3 is a circuit diagram of the present utility model
Fig. 4 is a warning mode chart of the present utility model
Wherein a is IC2 output, and b is IC3 output, and C is the mode chart after modulating.
The utility model mainly is made up of shell (1), control probe input line (2), electronic circuit board (3), control output line (4) and power line (5), and the effect of control probe (2) is that low level signal is sent into control circuit by current.
Transformer B, bridge circuit D1～D4, the IC1 of capacitor C 1 and expression forward integrated stable voltage circuit 7812 forms voltage-stabilized power supply, for the each several part circuit provides operating voltage, civil power is by after the B step-down, by D1～D4 rectification, be input to 1 pin of IC1 after the C1 filtering, 3 pin connect common port, and 2 pin output galvanic current is pressed.
IC2 forms a square-wave generator, when connecting power supply, Vcc is by resistance R 1, potentiometer W1, diode D3 and capacitor C2 charging, when the voltage on the capacitor C 2 during greater than 2/3rds Vcc, the 3 pin output of IC2 converts low level to by original high level, and internal circuit discharges by 7 pin; When the C2 both end voltage was passed through discharge less than 1/3Vcc, output became high level by low transition again.By changing the resistance of W1, can change the dutycycle of 3 pin output square wave.
IC3 forms an astatic multivibrator, and by the charge and discharge process to capacitor C 4, its 3 pin is exported an audio signal, can directly drive loudspeaker YD and send alarm signal.4 pin of IC3 are control pin, link to each other with 3 pin of IC2.During the 4 pin input high levels of IC3, its 3 pin output audio signal; During the 4 pin input low levels of IC3, its 3 pin does not have output signal.By 3 pin of IC2 4 pin of IC3 are modulated like this, made 3 pin of IC3 export an interrupted adjustable alarm signal, the modulation relation as shown in Figure 4.
Control circuit is made up of IC4, BG1, BG2, BCR.1 pin of IC4,6 pin, 12 pin, 14 pin all connect high level, 7 pin ground connection, and BG1, BG2 all are operated on off state, supply water just often, and low level is delivered to 2 pin and 13 pin of IC4 by current by the control probe.3 pin output high level links to each other with 5 pin, and 4 pin output low levels link to each other with the BG2 base stage, and BG2 ends, and disconnects the power supply of the audio frequency oscillator of IC2 composition, does not have alarm signal output.11 pin output high level, the base stage of delivering to BG1 makes its conducting, triggers controllable silicon BCR conducting, A.C. contactor JC closure, the electrothermic retorting device is admitted to three-phase alternating current and carries out work.When tap water cut-off, 2 pin are unsettled, are a high level signal, 3 pin output low levels, and 4 pin output high level, the power supply that IC3 forms audio frequency oscillator is connected in the BG2 conducting, sends alarm signal; While 11 pin output low levels, BG1 ends, and disconnects the power supply that exchanges the contact map, and the power supply of electrothermic retorting device is cut off automatically.
Because the low level of IC4 output still has certain magnitude of voltage to make the controllable silicon conducting, so used potentiometer W2 and BG1 as control silicon controlled electronic switch; Because the high level of IC4 output does not have enough power drive IC3 work, so used BG1, diode D7, capacitor C 6 as the electronic switch that the IC3 power supply is provided.
IC1 is forward integrated stable voltage circuit 7812,12 volts of stable DC voltages of output.R1, R2 are 1K resistance, W1 is the 5.7K potentiometer, D5, D6 are 1N4001 type diode, the charging current of R1, W1 decision C2, the discharge current of 7 pin of W1, R2 decision IC2, D5, D6 can be isolated the discharging and recharging the time of C2, and C2 is 22 μ F/16V electrochemical capacitors, determine the cycle of 3 pin output wave mode, adjusted the dutycycle that W1 can change square wave.C3 is 0.01 μ F electric capacity, is used for eliminating the influence of high-frequency signal to circuit.R3, R4 are that 100K resistance, C4 are 0.047 μ F electric capacity, and Vcc makes the IC3 output audio signal by R3, R4 to the charge and discharge process of C4, and C5 is the anti-interference capacitor of 0.01 μ F.YD is the dynamic loudspeaker of 8 Ω, 1W.IC2, IC3 are the NE555 integrated circuit.IC4 is two inputs, four NAND gate CD4093, is used for the output control signal is changed.W2 is the 4.7K potentiometer, is used for adjusting the input voltage of BG1 base stage.BG1, BG2 are the 3DK switching tube.BG1 is used for controlling bidirectional triode thyristor BCR, also can control the power supply of electrothermic retorting device.BG2 is used for controlling the power supply of IC3.D7 is a 2CW19 type Zener diode, and C6 is 1000 μ F/25V electrochemical capacitors, and D7 and C6 are used for providing stable operating voltage for IC3.
Claims (3)
1, a kind of electrothermic retorting unit protection device mainly is made up of shell (1), control probe input line (2), electronic circuit board (3), control output line (4) and power line (5), it is characterized by:
1) warning circuit is made up of NE555 IC 2 and IC3, and IC2 forms a square-wave generator, and IC3 forms an audio frequency oscillator, utilizes the square-wave signal of IC2 output to go to modulate the audio signal that IC3 exports,
2) control circuit is made up of CD4093 NAND gate IC 4, when the electrothermic retorting device supplies water just often, control circuit makes A.C. contactor JC adhesive, and the electrothermic retorting device carries out work, use the audio frequency oscillator power supply of warning circuit to disconnect simultaneously, warning circuit is not worked; When water supply stopped, control circuit disconnected A.C. contactor, thereby cut off the power supply of electrothermic retorting device, made the audio frequency oscillator work of warning circuit simultaneously, sent alarm signal,
3) control circuit carries out the state conversion by gate circuit, and the electronic switch and the bidirectional triode thyristor BCR that form by triode BG1 and BG2 control.
2, electrothermic retorting unit protection device according to claim 1 is characterized by control and state switching circuit and is made up of NAND gate, and the control signal of IC4 output removes to control electronic switch.
3, electrothermic retorting unit protection device according to claim 1, that it is characterized by control A.C. contactor power supply is bidirectional triode thyristor BCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92206727 CN2121260U (en) | 1992-04-15 | 1992-04-15 | Electric heating distillation device protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92206727 CN2121260U (en) | 1992-04-15 | 1992-04-15 | Electric heating distillation device protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2121260U true CN2121260U (en) | 1992-11-11 |
Family
ID=4952600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92206727 Granted CN2121260U (en) | 1992-04-15 | 1992-04-15 | Electric heating distillation device protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2121260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060966C (en) * | 1993-02-12 | 2001-01-24 | 李英杰 | Autocontrol method for fractional extraction process |
| CN113075878A (en) * | 2021-03-12 | 2021-07-06 | 北京航天自动控制研究所 | Redundancy control system based on fault prediction |
-
1992
- 1992-04-15 CN CN 92206727 patent/CN2121260U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060966C (en) * | 1993-02-12 | 2001-01-24 | 李英杰 | Autocontrol method for fractional extraction process |
| CN113075878A (en) * | 2021-03-12 | 2021-07-06 | 北京航天自动控制研究所 | Redundancy control system based on fault prediction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |