CN2248885Y - Magnetic floating ball type device for automatically controlling liquid level - Google Patents
Magnetic floating ball type device for automatically controlling liquid level Download PDFInfo
- Publication number
- CN2248885Y CN2248885Y CN 95215936 CN95215936U CN2248885Y CN 2248885 Y CN2248885 Y CN 2248885Y CN 95215936 CN95215936 CN 95215936 CN 95215936 U CN95215936 U CN 95215936U CN 2248885 Y CN2248885 Y CN 2248885Y
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- CN
- China
- Prior art keywords
- liquid level
- magnetic
- circuit
- tongue tube
- comparer
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Abstract
The utility model relates to a magnetic floating ball type device for automatically controlling liquid level, which is a device for controlling and monitoring the height of the liquid level. The magnetic float type liquid level sensor of the utility model is composed of a magnetic floating ball, a metal conduit, an ultra-low and an ultra-high spacing cards and a normally closed and a normally open dry reed pipes, and the inner part of an abnormal liquid level alarm circuit is provided with an ultra-low and an ultra-high alarm circuit which is composed of comparators U < 2 >, U < 3 > and a control loop which cuts off the operation of the motor of a pump and is provided with a diode D < 4 >. An auxiliary monitoring self-locking circuit is composed of a comparator U < 1 >, triodes B < 6 >, B < 7 >, a relay J < 2 > and an indicator light L < 1 >. The utility model has the advantages of simple structure, reliable performance, long service life, complete function and low cost.
Description
The utility model is a kind of instrument that the liquid level high and low position of water or on-aqueous liquid container is controlled automatically, monitored automatically and report to the police.
The control of liquid liquid level height in all kinds of containers is an extremely important technical work.Mostly existing automatic control of liquid device is to adopt the electrode sensor structure.In the use, be easy to heavy knot dirt and corrosion in the water, reduced the electric conductivity of electrode owing to electrode is immersed in throughout the year, so that faults such as malfunctioning take place to control, poor stability, instrument is short serviceable life.The maximum deficiency of this class automatic control of liquid device is the liquid level monitoring that can not be applicable to non-conductive liquid, and range of application is narrow.The float-ball type automatic control of liquid device of some market sale also exists the problem that inconvenience, function difference are installed at present.
The purpose of this utility model is exactly at the deficiencies in the prior art, design provides a kind of can be applicable to conducting liquid, the magnetic float-ball type automatic control of liquid device that can satisfy the control automatically of non-electrically conductive liquid liquid level height again, monitor and report to the police automatically, reaches applied range, long service life, good stability, installation purpose easy to adjust.
Basic design of the present utility model is, magnetic float-ball type automatic control of liquid device is made of magnetic levitation type liquid level sensor, pump motor operation self-control circuit, improper liquid level alarm circuit, auxiliary latching circuit and the power supply of monitoring, its magnetic levitation type liquid level sensor comprises parts such as magnetic ball float, metal catheter, ultralow spacing card, the spacing card of superelevation, normally closed tongue tube and Chang Kai tongue tube; In improper liquid level alarm circuit, be provided with comparer U
2, U
3High High Level, the low Low Level warning circuit of forming and when disposing low Low Level the running of force disconnect pump motor contain diode D
4Control loop; Comparer U
1, triode B
6, B
7, relay J
2With pilot lamp L
1The auxiliary supervision latching circuit of having formed this device.
The utlity model has simple in structure, easy for installation, have wide range of applications, dependable performance, long service life, function characteristics complete, with low cost.
Fig. 1 is a magnetic float-ball type automatic control of liquid device structural principle block scheme;
Fig. 2 is the magnetic levitation type liquid level sensor structural representation;
Fig. 3 is the main circuit diagram of magnetic float-ball type automatic control of liquid device.
Below in conjunction with accompanying drawing the utility model optimum implementation is described in detail.Magnetic float-ball type automatic control of liquid device is made of magnetic levitation type liquid level sensor 1, pump motor operation self-control circuit 2, improper liquid level alarm circuit 3, auxiliary latching circuit 4 and the power supply 5 of monitoring, the normally closed tongue tube 7 of its magnetic levitation type liquid level sensor 1, often open tongue tube 13 and normally closed tongue tube 8, often open tongue tube 10 respectively with the comparer U of improper liquid level alarm circuit 3
2, U
3Public input end and the relay J 1 of pump motor operation self-control circuit 2 be connected the auxiliary relay J that monitors latching circuit 4
2Normally closed contact J
2-1 diode D that links to each other with pump motor operation self-control circuit 2
4Improper liquid level alarm circuit 3 is monitored that with auxiliary latching circuit 4 joins, and power supply 5 is connected with each assembly respectively behind rectifying and voltage-stabilizing.Magnetic levitation type liquid level sensor 1 by magnetic ball float 11, metal catheter 9, ultralow spacing card 12, the spacing card 6 of superelevation and normally closed tongue tube 7,8, often open tongue tube 10,13 and assembly: its magnetic ball float 11 movable sets are in metal catheter 9 outsides, normally closed tongue tube 7,8 and Chang Kai tongue tube 10,13 are fitted on the metal catheter 9, and ultralow spacing card 12 and the spacing card 6 of superelevation are separately fixed at the lower end and the upper end of metal catheter 9.In improper liquid level alarm circuit 3, be provided with comparer LM339U
2And U
3High High Level and the low Low Level warning circuit formed, its U
2And U
3Positive and negative input end link to each other with reference voltage, status signal voltage respectively, output terminal respectively with Sheffer stroke gate CD4093U
5, U
6Input end links to each other.For avoiding liquid level to be lower than the undying running of pump motor in limited time down, in improper liquid level alarm circuit 3, also disposed the control loop of low Low Level force disconnect pump motor running, contain diode D in this control loop
4, its two poles of the earth respectively with comparer LM339U
1Positive input terminal and comparer U
3Output terminal C link to each other.The auxiliary latching circuit 4 that monitors is by comparer U
1, triode B
6, B
7, relay J
2With pilot lamp L
1Form its comparer U
1Positive input terminal and the diode D of the control loop in the improper liquid level alarm circuit 3
4Connect.
The principle of work and the process of this controller are as follows: the liquid level height of storage liquid containers such as water tower, pond is inhaled the normally closed of moving corresponding site or is often opened tongue tube by the magnetic of magnetic ball float 11 and produces control signal.The magnetic ball float 11 that floats over liquid surface is positioned under the liquid level prescribes a time limit, and tongue tube 10, relay J are often opened in adhesive
1Must be electric, auxiliary contact J
1-1 closed self-locking gets intermediate relay ZJ.Two normally open contact ZJ-1, ZJ-2 of intermediate relay ZJ connect A.C. contactor QC, start the pump motor running.Prescribe a time limit when liquid level rises to, magnetic ball float 11 is inhaled and is opened normally closed tongue tube 8, block system relay J
1The loop, two normally open contact ZJ-1, ZJ-2 of intermediate relay ZJ disconnect the control loop of A.C. contactor QC, motor shuts down.So open repeatedly, termination of pumping Electric Machine Control liquid level changes in upper limit of determining and lower limit scope, reaches the purpose of automatic control liquid level.Pump motor is out of control when occurring for a certain reason, and liquid level continues to rise to High High Level, and when promptly magnetic ball float 11 rose to the position of the spacing card 6 of superelevation, magnetic ball float 11 was inhaled and opened normally closed tongue tube 7, disconnects pull down resistor, and " A " puts current potential near supply voltage, comparer U
2Positive input terminal be higher than the voltage of negative input end, so " B " some current potential becomes high level; One the tunnel through Sheffer stroke gate U
5Permission is by CD4001U
7, U
8The interval signal that the LF oscillator of forming produces passes through, and orders about " High High Level " pilot lamp L
3Glittering; Another road is through Sheffer stroke gate CD4001U
4, U
9, open the CD4093U that shakes
10, U
11The audio frequency oscillator of forming drives loudspeaker and sends the interruption alarm sound.Rise when the liquid level continuation, magnetic ball float 11 is inhaled out normally closed tongue tube 7 owing to the positioning action of placing restrictions on of the spacing card 6 of superelevation all the time in the superelevation position, keeps alarm condition.In case trouble shooting, liquid level descend, when magnetic ball float 11 leaves the spacing card 6 of superelevation, automatically terminate High High Level and report to the police.When liquid level is lower than lower limit, when promptly the magnetic ball float slided into ultralow spacing card 12 positions for 11 times, tongue tube 13 was often opened in 11 adhesives of magnetic ball float, and " A " some current potential is near zero level, comparer U
3The negative input level be lower than positive input terminal, so " C " point become high level: the one tunnel through Sheffer stroke gate U
6Allow the low frequency interval signal to pass through, order about " low Low Level " pilot lamp L
4Flash; Another road is through Sheffer stroke gate U
4, U
9Order about audio frequency oscillator and open and shake, send liquid level and be in low Low Level state audio alarm sound; Third Road conducting diode D
4, the positive input terminal of comparer U1 becomes high level, so its output uprises level, orders about triode B
6, B
7Conducting, relay J
2Must be electric, J
2-1 normally closed interlock cuts off pilot relay J
1The loop, pinning pump motor can not start.This moment pilot lamp L
1Bright, locked to show pump motor.Work as trouble shooting, liquid level rises, and magnetic ball float 11 leaves ultralow spacing card 12, and then warning finishes with self-locking state thereupon.In normal condition, promptly " A " puts current potential near 1/2 of power Vcc, comparer U
2, U
3Output terminal B, the level of C be low level, so rejection gate output terminal " D " is a high level, the one tunnel through rejection gate U
9Close audio frequency oscillator; Another road is through triode B
1Conducting " normally " relay indicating light L
2Bright, normal to show.The auxiliary supervision when latching circuit 4 is worked is inserted in two electrode WS in " H " water receptacle
1, conducting when water is arranged makes comparer U
1Positive input terminal becomes low level, so its output terminal also is a low level, and triode B
6, B
7Be in cut-off state, relay J
2Normally closed interlock J
2-1 retentive control relay J
1The loop on-state, thereby controller works.In case anhydrous in the container, electrode WS
1Leave not conducting of the water surface, comparer U
1Positive input terminal near power source voltage Vcc, its output terminal becomes high level, orders about triode B
6, B
7Conducting, relay J
2Must be electric, disconnect normally closed interlock J
2-1 relay J
1Control loop by disconnected, force disconnect pump motor M
1Power supply, shut down, this moment pilot lamp L
1Shinny, anhydrous to show in the container.When the on-aqueous liquid position is controlled automatically, can provide switching signal control pump motor-locking or running by utility appliance.
Claims (5)
1, a kind of magnetic float-ball type automatic control of liquid device that the liquid level of water or on-aqueous liquid container is controlled automatically, monitored automatically and reports to the police of being used for, it is characterized in that this device by magnetic levitation type liquid level sensor (1), pump motor operation self-control circuit (2), improper liquid level alarm circuit (3), auxiliary latching circuit (4) and power supply (5) formation of monitoring, the normally closed tongue tube (7) of its magnetic levitation type liquid level sensor (1), often open tongue tube (13) and normally closed tongue tube (8), often open tongue tube (10) respectively with the comparer U of improper liquid level alarm circuit (3)
2, U
3Public input end and the relay J 1 of pump motor operation self-control circuit (2) be connected the auxiliary relay J that monitors latching circuit (4)
2Normally closed contact J
2-1 links to each other diode D with pump motor operation self-control circuit (2)
4Improper liquid level alarm circuit (3) and the auxiliary latching circuit (4) that monitors are joined, and power supply (5) is connected with each assembly respectively behind rectifying and voltage-stabilizing.
2, magnetic float-ball type automatic control of liquid device according to claim 1, it is characterized in that magnetic levitation type liquid level sensor (1) is by magnetic ball float (11), metal catheter (9), ultralow spacing card (12), spacing card of superelevation (6) and normally closed tongue tube (7), (8), often open tongue tube (10), (13) assembly, its magnetic ball float (11) movable set is in metal catheter (9) outside, normally closed tongue tube (7), (8) and often open tongue tube (10), (13) be fitted on the metal catheter (9), ultralow spacing card (12) and the spacing card of superelevation (6) are separately fixed at the lower end and the upper end of metal catheter (9).
3. magnetic float-ball type automatic control of liquid device according to claim 1 is characterized in that being provided with comparer U in improper liquid level alarm circuit (3)
2And U
3High High Level and the low Low Level warning circuit formed, its U
2And U
3Positive and negative input end link to each other with reference voltage, status signal voltage respectively, output terminal respectively with Sheffer stroke gate U
5, U
6Input end links to each other.
4, magnetic float-ball type automatic control of liquid device according to claim 3, the control loop of force disconnect pump motor running contains diode D when it is characterized in that disposing low Low Level in improper liquid level alarm circuit (3) in this control loop
4, its two poles of the earth respectively with comparer U
1Positive input terminal and comparer U
3Output terminal C link to each other.
5, magnetic float-ball type automatic control of liquid device according to claim 1 is characterized in that the auxiliary latching circuit (4) that monitors is by comparer U
1, triode B
6, B
7, relay J
2Form with pilot lamp L1, the positive input terminal of its comparer U1 is connected with the diode D4 of control loop in the improper liquid level alarm circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95215936 CN2248885Y (en) | 1995-06-24 | 1995-06-24 | Magnetic floating ball type device for automatically controlling liquid level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95215936 CN2248885Y (en) | 1995-06-24 | 1995-06-24 | Magnetic floating ball type device for automatically controlling liquid level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248885Y true CN2248885Y (en) | 1997-03-05 |
Family
ID=33865142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95215936 Expired - Fee Related CN2248885Y (en) | 1995-06-24 | 1995-06-24 | Magnetic floating ball type device for automatically controlling liquid level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248885Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982648A (en) * | 2010-10-29 | 2011-03-02 | 浙江亚特电器有限公司 | Oil-free automatic acousto-optic alarm device of engine |
| CN102029997A (en) * | 2010-12-02 | 2011-04-27 | 芜湖盛力制动有限责任公司 | Oil cup of hydraulic braking system |
| CN104460719A (en) * | 2014-12-03 | 2015-03-25 | 苏州市职业大学 | Liquid level switch with hysteresis function |
| CN114020053A (en) * | 2021-10-18 | 2022-02-08 | 一拖（洛阳）福莱格车身有限公司 | Steam condensate water liquid level detection and control device and detection method |
-
1995
- 1995-06-24 CN CN 95215936 patent/CN2248885Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982648A (en) * | 2010-10-29 | 2011-03-02 | 浙江亚特电器有限公司 | Oil-free automatic acousto-optic alarm device of engine |
| CN101982648B (en) * | 2010-10-29 | 2012-09-05 | 浙江亚特电器有限公司 | Oil-free automatic acousto-optic alarm device of engine |
| CN102029997A (en) * | 2010-12-02 | 2011-04-27 | 芜湖盛力制动有限责任公司 | Oil cup of hydraulic braking system |
| CN104460719A (en) * | 2014-12-03 | 2015-03-25 | 苏州市职业大学 | Liquid level switch with hysteresis function |
| CN114020053A (en) * | 2021-10-18 | 2022-02-08 | 一拖（洛阳）福莱格车身有限公司 | Steam condensate water liquid level detection and control device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |