CN2039875U - Conducting liquid level relay - Google Patents
Conducting liquid level relay Download PDFInfo
- Publication number
- CN2039875U CN2039875U CN 88211954 CN88211954U CN2039875U CN 2039875 U CN2039875 U CN 2039875U CN 88211954 CN88211954 CN 88211954 CN 88211954 U CN88211954 U CN 88211954U CN 2039875 U CN2039875 U CN 2039875U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- relay
- conducting liquid
- level relay
- height
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 239000012530 fluid Substances 0.000 claims 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a conducting liquid level relay composed of a quad integrated operational amplifier, four light emitting diodes and a single pole relay. The conducting liquid level relay can display and control the height of multi-stage liquid level and can control and display different temperatures matched with a mercury conductometer. The conducting liquid level relay has the advantages of simple structure, high reliability, convenient production and low cost.
Description
A kind of conductive liquid level relay that is used to control liquid level belongs to electronic technology field.
What be used to control liquid level at present has a transistor liquid level relay, and it is made up of discrete component transistor, diode and relay, and volume is big, and can not show the height of controlled liquid level.
The purpose of this utility model is with a kind of conductive liquid level relay that shows different liquid levels of integrated circuit (IC) design.
Operation principle of the present utility model is described in detail as follows in conjunction with Fig. 1:
With GL324 tetrad operational amplifier and four light-emitting diode DN
1-DN
4And relay J formation conductive liquid level relay, power supply S output+24V voltage is through R
1, R
2After the dividing potential drop, an end directly is connected (a point) with the metal liquid level container A on the left side among the figure, and the other end passes through R
4, R
6Dividing potential drop is as IC
1Forward input, IC
1Negative end input be, an end stretches into the top C of container A by lead, the other end is by divider resistance R
3Stretch to the b bottom of container A.IC
2, IC
3, IC
4Positive input extend into g, f, e position in the container A with lead respectively.When in the container A when anhydrous, IC
1Have only the forward end input, it is output as positive polarity voltage, light-emitting diode DN
1Bright, the moving And that does of relay J starts the pump motor that draws water, and draws water in container, at this moment IC
2, IC
3, IC
4All be provided with the forward input signal, its output all is negative polarity, DW
2-DW
4All do not work, anhydrous in the expression container.When liquid level rises to the b position, electric current process liquid water stream is arranged to the b place, thereby IC
1Negative input through R
3, R
5Signal voltage is arranged after the dividing potential drop, but because of IC
1Positive polarity output before this is through R
17Be added with positive feedback, thus this moment IC
1The forward input voltage still greater than its negative sense input voltage, relay J is adhesive still, continue to start suction pump and draws water.When water level rises to the e position, IC
4The forward input voltage greater than its negative sense input voltage, DW
4Bright, expression container middle water level (is put fixed certain degree of depth) in advance in the e position.When water level rises to f, g position, DW is arranged successively
3, DW
2Bright.When water level rises to the C position, IC
1The negative sense input voltage greater than its forward input voltage, IC
1Be output as reverse voltage, relay J returns to the origin-location, and suction pump stops pumping, simultaneously DW
1Secretly, the water in the expression container has been taken out full.When decline of water table when leaving the C position, IC
1The negative sense input voltage by the b point through R
3, R
5The dividing potential drop input value still greater than its forward input voltage (because of IC
1Do not have positive feedback signal and be input to forward end this moment), its output is reverse voltage still, relay J is failure to actuate, and still stops pumping.Water level successively makes DW after continuing to descend
2, DW
3, DW
4Secretly, until decline of water table is when leaving the b position, IC
1Negative sense is input as zero, is output as positive polarity voltage, and the relay J action starts suction pump once more and draws water DW
1Bright.Repeat said process later on.
Fig. 2 is a structure chart of the present utility model, and 1,2 is respectively DW among the figure
1, DW
2Light-emitting diode is IC here
2G point and IC
1The C point link to each other IC
3, IC
4Do not use.B is a conductive liquid level relay housing, and 3,4,5 is respectively the wiring pin of a, b, c, the 6,7, the 8th, and three wiring pins of relay J output, the 9, the 10th, alternating current 220V voltage wiring pin, the 11st, connector assembly.Two light-emitting diodes, the full liquid level (DW of indication
2Green), another indication suction pump (DW that draws water
1Red).
The utility model is compared with existing transistor liquid level relay, and main feature is to show the multi-stage liquid level height, and because of using a tetrad integrated operational amplifier and a winding (hilted broadsword) relay, cost is low, good reliability, and function is complete.
Claims (3)
1, a kind of by electronic device, relay assembly fluid level controller together, it is characterized in that by integrated operational amplifier IC
1-IC
4, light-emitting diode DW
1-DW
4, relay J and power supply S Zu Cheng And can show the multi-stage liquid level height.
2, by the described fluid level controller of claim 1, it is characterized in that IC
1Positive input R
1, R
2, R
4, R
6, R
17With negative input R
3, R
5Constitute voltage comparator, according to the liquid level control relay J action of presetting.
3, by the described fluid level controller of claim 1, it is characterized in that DW
2-DW
4Whether luminous height of directly indicating liquid level, DW
2-DW
4Also available charactron shows liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211954 CN2039875U (en) | 1988-06-27 | 1988-06-27 | Conducting liquid level relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211954 CN2039875U (en) | 1988-06-27 | 1988-06-27 | Conducting liquid level relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2039875U true CN2039875U (en) | 1989-06-21 |
Family
ID=4845310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211954 Withdrawn CN2039875U (en) | 1988-06-27 | 1988-06-27 | Conducting liquid level relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2039875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495619C (en) * | 2006-01-11 | 2009-06-03 | 中国科学院西安光学精密机械研究所 | Water Protection Relay |
| CN105551775A (en) * | 2016-03-07 | 2016-05-04 | 刘恩同 | High-cooling performance potential device |
-
1988
- 1988-06-27 CN CN 88211954 patent/CN2039875U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495619C (en) * | 2006-01-11 | 2009-06-03 | 中国科学院西安光学精密机械研究所 | Water Protection Relay |
| CN105551775A (en) * | 2016-03-07 | 2016-05-04 | 刘恩同 | High-cooling performance potential device |
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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 |