CN201852615U - Alternating current electrolytic liquid level sensor - Google Patents
Alternating current electrolytic liquid level sensor Download PDFInfo
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- CN201852615U CN201852615U CN2010205038888U CN201020503888U CN201852615U CN 201852615 U CN201852615 U CN 201852615U CN 2010205038888 U CN2010205038888 U CN 2010205038888U CN 201020503888 U CN201020503888 U CN 201020503888U CN 201852615 U CN201852615 U CN 201852615U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides an alternating current electrolytic liquid level sensor comprising at least one exploring electrode, a common electrode and a sensor signal circuit which are electrically connected, wherein the sensor signal circuit comprises a water level treatment circuit, a temperature processing circuit and a power circuit; the power circuit comprises an alternating current power supply which exerts a 50Hz alternating current voltage on the water level treatment circuit for detection; due to action of the alternating current power supply, the exploring electrode and the common electrode conduct electrolytic reaction and reduction reaction continually to achieve a dynamic balance in the whole period, therefore, not only the electrode materials of the exploring electrode and the common electrode can be effectively prevented from being corroded, but also the surfaces of the exploring electrode and the common electrode can not to be scaled, the service life of a solar water heater is prolonged, and the practical effect of the solar water heater is further improved. The alternating current electrolytic liquid level sensor is wider in adaptability and easier to be accepted by common people.
Description
Technical field
The utility model relates to a kind of alternating current electrolysis formula liquid level sensor, be particularly related to the less scaling and burn into long service life of a kind of electrode material, make things convenient for the alternating current electrolysis formula liquid level sensor of installation and maintenance, belong to the technical field of solar water heater perception water-level and water-temperature device.
Background technology
Solar water heater has been used a lot of years in China, characteristics because of its energy-saving and environmental protection, liked by a lot of consumer, wherein, how many water volume in water tank of solar water heater is to use a kind of liquid level sensor to detect realization, and this just liquid level sensor is restricting the development of solar water heater at present.
At present, approximately be divided into 6 classes with the supporting sensor of solar water heater on the market: resistance sensor, contact sensor, capacitance type sensor, pressure type sensor, metering-type sensor and direct current level sensor.Yet these sensors all have shortcoming separately, and the voltage-type sensor is the variation of judging water level by the size variation of resistance, and its precision and reliability are subject to the influence of incrustation scale and water quality; The contact sensor is that the closure of utilizing buoyancy to control the contact is judged SEA LEVEL VARIATION with disconnection, and it is subjected to the impurity in the water easily and influences operate as normal; The precision of capacitance type sensor is subjected to the influence of stray capacitance easily, and its signal transmitting device must be installed in sensor side; Pressure type sensor is subjected to the influence of water temperature and water quality easily; The metering-type sensor is the variation of judging water level by calculating such as resistance, pulse, frequency, capacitance, pressure, and its error ratio is bigger, makes mistakes easily; And the direct current level sensor is to use direct current to carry out water level detecting, and has the defective of fouling, and maximum defective is that the direct current scheme that this sensor adopts can cause electrode to be corroded and fouling, influences the serviceable life of this sensor; And this sensor needs many leads to be connected with main frame, and is cumbersome during installation and maintenance, easily with the lead wrong.
So being necessary to design a kind of new sensor improves these defectives.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the less scaling and burn into long service life of a kind of electrode material is provided, makes things convenient for the alternating current electrolysis formula liquid level sensor of installation and maintenance.
The utility model provides a kind of alternating current electrolysis formula liquid level sensor, and described alternating current electrolysis formula liquid level sensor comprises at least one exploring electrode, public electrode and the sensor signal circuit of electrical connection;
Be electrically connected with first lead-in wire, second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire on the described alternating current electrolysis formula liquid level sensor;
Described sensor signal circuit comprises water level treatment circuit, Temperature Treatment circuit and power circuit; Described power circuit comprises AC power, positive supply, first electric capacity, second electric capacity, first diode and second diode;
Described first lead-in wire is electrically connected described water level treatment circuit, and described second lead-in wire is electrically connected described Temperature Treatment circuit, and described the 3rd lead-in wire and described the 4th lead-in wire are electrically connected described AC power, and are located at the positive and negative polarities of described AC power respectively;
Described first lead-in wire is electrically connected with described exploring electrode;
Described first diode, one end is electrically connected with described AC power by described the 3rd lead-in wire, and the other end is electrically connected with described positive supply, and is provided with first node between described positive supply and described first diode; Described second diode, one end is electrically connected with described AC power by described the 4th lead-in wire, and the other end is electrically connected with described first node, and is provided with Section Point between described power circuit and described second diode; Described first electric capacity, described second electric capacity, one end are electrically connected with described first node respectively and ground connection, and its other end is electrically connected with described Section Point respectively;
Be provided with temperature-sensing element in the described public electrode, and described public electrode ground connection and be electrically connected with described Section Point.
Combination through above each parts; when described exploring electrode and described public electrode all are submerged in the water; except normal Level Detection; because the effect of AC power; carry out electrolytic reaction and reduction reaction between described exploring electrode and the described public electrode constantly; in the whole cycle, reach a kind of mobile equilibrium; not only effectively protect the electrode material of described exploring electrode and described public electrode not to be corroded, and made the electrode surface non flouling behaviour of described exploring electrode and described public electrode.
The alternating current electrolysis formula liquid level sensor that the utility model provides, described alternating current electrolysis formula liquid level sensor further comprises base and sensor outer housing; Described exploring electrode, described public electrode and described base one are injection molded, and described base and described sensor outer housing are hinged, are provided with perforate in described sensor outer housing, and described first lead-in wire is located in the described perforate; Space between the described exploring electrode, described exploring electrode and described public electrode space.
The known relatively sensor of alternating current electrolysis formula liquid level sensor that the utility model provides has following advantage:
(1) described power circuit comprises AC power, so all have alternating current on the described exploring electrode, when described exploring electrode with after liquid level contacts, except normal Level Detection, because the effect of AC power, carry out electrolytic reaction and reduction reaction between described exploring electrode and the described public electrode constantly, in the whole cycle, reach a kind of mobile equilibrium, not only effectively protected the electrode material of described exploring electrode and described public electrode not to be corroded, and make the electrode surface non flouling behaviour of described exploring electrode and described public electrode, prolonged the serviceable life of solar water heater, further improve the practical function of solar water heater, adaptability is wider, is accepted by the masses easilier;
(2) lead-in wire of described exploring electrode is integrated into one, make described alternating current electrolysis formula liquid level sensor only need four leads with being electrically connected of described solar water heater main frame, both save material, greatly facilitated the installation and maintenance of described alternating current electrolysis formula liquid level sensor again.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model alternating current electrolysis formula liquid level sensor;
Accompanying drawing 2 is the schematic diagram of the utility model sensor signal circuit.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
Preferably, a kind of alternating current electrolysis formula liquid level sensor 1, described alternating current electrolysis formula liquid level sensor 1 comprises at least one exploring electrode 2, public electrode 3 and the sensor signal circuit 4 of electrical connection; Described exploring electrode 2 in the utility model specific embodiment has four, and those skilled in the art can do certain adjustment to the quantity of described exploring electrode as required, can be six, eight or other.
Be electrically connected with first lead-in wire, 5, second lead-in wire the 6, the 3rd lead-in wire the 7 and the 4th lead-in wire 8 on the described alternating current electrolysis formula liquid level sensor 1; Described sensor signal circuit 4 comprises water level treatment circuit 9, Temperature Treatment circuit 10 and power circuit 11; Described power circuit 11 comprises AC power AC, positive supply VCC, first capacitor C 1, second capacitor C 2, the first diode D1 and the second diode D2;
Described first lead-in wire 5 is electrically connected described water level treatment circuit 9, and described first lead-in wire 5 further is electrically connected with described exploring electrode 2; Described water level treatment circuit 9 is formed in parallel by four identical exploring electrode circuit, and described exploring electrode circuit comprises described exploring electrode 2, first resistance R 1, the 3rd diode D3, optocoupler U, second resistance R 2, the 3rd capacitor C 3, triode Q, described AC power AC, described positive supply VCC, the 3rd resistance R 3 and the 4th resistance R 4; Described optocoupler U comprises first pin (not shown), second pin (not shown), the 3rd pin (not shown) and the 4th pin (not shown); Described triode Q comprises the 5th pin (not shown), the 6th pin (not shown) and the 7th pin (not shown); One end of described first resistance R 1 is electrically connected with described exploring electrode, the other end of described first resistance R 1 is electrically connected with the end of described the 3rd diode D3, and be provided with the 3rd node 18 between described first resistance R 1 and described the 3rd diode D3, the other end of described the 3rd diode D3 is electrically connected with described AC power AC, and be provided with the 4th node 19 between the other end of described the 3rd diode D3 and the described AC power AC, described the 4th node 19 is electrically connected with described first pin, described the 3rd node 18 is electrically connected with described second pin, described the 3rd pin is electrically connected with described second resistance R, 2 one ends, and be provided with the 5th node 20 between the two, the other end of described second resistance R 2 is electrically connected described positive supply VCC; Described the 5th pin is electrically connected with described the 5th node 20, described the 3rd capacitor C 3 one ends are electrically connected with described the 5th node 20, the other end is electrically connected with described the 4th node 19, and is provided with the 6th node 21 between described the 3rd capacitor C 3 and described the 4th node 19, described the 6th node 21 ground connection; Described the 7th pin is electrically connected described the 6th node 21, described the 6th pin is electrically connected with described alternating current electrolysis formula liquid level sensor by described first lead-in wire, described the 3rd resistance R 3 one ends are electrically connected described the 6th pin, the other end is electrically connected with described positive supply VCC, described the 4th resistance R 4 one ends are electrically connected with described the 6th pin, and the other end is electrically connected with described the 6th pin of triode Q described in described another exploring electrode circuit.
Described exploring electrode circuit adopts the described triode Q of described optocoupler U to carry out the processing and amplifying of signal, make that described AC power AC and described positive supply VCC can effective isolation, prevent to produce and disturb, improve the sensitivity that detects, make circuit working more stable.
Described Temperature Treatment circuit 10 comprises described second lead-in wire the 6, the 5th resistance R 5, positive supply VCC and the variable resistor R6, described the 5th resistance R 5 one ends are electrically connected with described positive supply VCC, the other end is electrically connected with described variable resistor R6 one end, be provided with the 7th node 22 between described the 5th resistance R 5 and the described variable resistor R6, described variable resistor R6 other end ground connection, described the 7th node 22 is electrically connected to described alternating current electrolysis formula liquid level sensor 1 by described second lead-in wire 6.
Described second lead-in wire 6 is electrically connected described Temperature Treatment circuit 10, and described the 3rd lead-in wire 7 and described the 4th lead-in wire 8 are electrically connected described AC power AC, and are located at the positive and negative polarities of described AC power AC respectively; The described first diode D1, one end is electrically connected with described AC power AC by described the 3rd lead-in wire 7, and the other end is electrically connected with described positive supply VCC, and is provided with first node 16 between described positive supply VCC and the described first diode D1; The described second diode D2, one end is electrically connected with described AC power AC by described the 4th lead-in wire 8, and the other end is electrically connected with described first node 16, and is provided with Section Point 17 between described power circuit 11 and the described second diode D2; Described first capacitor C 1, described second capacitor C, 2 one ends are electrically connected with described first node 16 respectively and ground connection, and its other end is electrically connected with described Section Point 17 respectively; Be provided with temperature-sensing element 15 in the described public electrode 3, and described public electrode 3 ground connection and be electrically connected with described Section Point 17.
The key of the described sensor signal circuit of the utility model alternating current electrolysis formula liquid level sensor is to be to use the 50HZ alternating voltage to detect, and when described exploring electrode and described public electrode during by positive half cycle voltage, oxidation reaction takes place; When described exploring electrode and described public electrode during by negative half period voltage, reduction reaction takes place; The metallic ion that makes it to separate out in the whole cycle constantly reduces again, reaches a kind of mobile equilibrium, thereby has effectively protected the electrode material of described exploring electrode and described public electrode not to be corroded and fouling.
Combination through above each parts; when described exploring electrode and described public electrode all are submerged in the water; except normal Level Detection; because the effect of AC power; carry out electrolytic reaction and reduction reaction between described exploring electrode and the described public electrode constantly; in the whole cycle, reach a kind of mobile equilibrium; not only effectively protect the electrode material of described exploring electrode and described public electrode not to be corroded, and made the electrode surface non flouling behaviour of described exploring electrode and described public electrode.
The alternating current electrolysis formula liquid level sensor that the utility model provides, described alternating current electrolysis formula liquid level sensor 1 further comprises base 12 and sensor outer housing 13; Described exploring electrode 2, described public electrode 3 and described base 12 one are injection molded, and described base 12 is hinged with described sensor outer housing 13, be provided with perforate 14 in described sensor outer housing 13, and described first lead-in wire 5 is located in the described perforate 14; Space between the described exploring electrode, described exploring electrode 2 and described public electrode 3 spaces.
The known relatively sensor of alternating current electrolysis formula liquid level sensor that the utility model provides has following advantage:
(1) described power circuit comprises AC power, use the 50HZ alternating voltage to detect, so all have alternating current on the described exploring electrode, when described exploring electrode with after liquid level contacts, except normal Level Detection, because the effect of AC power, carry out electrolytic reaction and reduction reaction between described exploring electrode and the described public electrode constantly, in the whole cycle, reach a kind of mobile equilibrium, not only effectively protected the electrode material of described exploring electrode and described public electrode not to be corroded, and make the electrode surface non flouling behaviour of described exploring electrode and described public electrode, prolonged the serviceable life of solar water heater, further improve the practical function of solar water heater, it is wider to adapt to the masses, is accepted by the masses easilier;
(2) described exploring electrode circuit adopts the described triode of described optocoupler to carry out the processing and amplifying of signal, makes that described AC power and described positive supply can effective isolation, prevents to produce and disturbs, and improves the sensitivity that detects, and makes circuit working more stable;
(3) lead-in wire of described exploring electrode is integrated into one, make described alternating current electrolysis formula liquid level sensor only need four leads with being electrically connected of described solar water heater main frame, both saved material, the installation and maintenance that greatly facilitates described alternating current electrolysis formula liquid level sensor is arranged, and compatible and universal probability improves greatly.
Embodiment only is a preferred optimum implementation of the present utility model in sum; unintelligible is that protection domain of the present utility model is limited; for adjustment that does not exceed technical solutions of the utility model and the change that the technical work personnel of this area are done according to the utility model present embodiment, should think and drop in the protection domain of the present utility model.
Claims (5)
1. alternating current electrolysis formula liquid level sensor, described alternating current electrolysis formula liquid level sensor comprises at least one exploring electrode, public electrode and the sensor signal circuit of electrical connection; It is characterized in that:
Be electrically connected with first lead-in wire, second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire on the described alternating current electrolysis formula liquid level sensor;
Described sensor signal circuit comprises water level treatment circuit, Temperature Treatment circuit and power circuit; Described power circuit comprises AC power, positive supply, first electric capacity, second electric capacity, first diode and second diode;
Described first lead-in wire is electrically connected described water level treatment circuit, and described second lead-in wire is electrically connected described Temperature Treatment circuit, and described the 3rd lead-in wire and described the 4th lead-in wire are electrically connected described AC power, and are located at the positive and negative polarities of described AC power respectively;
Described first lead-in wire is electrically connected with described exploring electrode;
Described first diode, one end is electrically connected with described AC power by described the 3rd lead-in wire, and the other end is electrically connected with described positive supply, and is provided with first node between described positive supply and described first diode; Described second diode, one end is electrically connected with described AC power by described the 4th lead-in wire, and the other end is electrically connected with described first node, and is provided with Section Point between described power circuit and described second diode; Described first electric capacity, described second electric capacity, one end are electrically connected with described first node respectively and ground connection, and its other end is electrically connected with described Section Point respectively;
Be provided with temperature-sensing element in the described public electrode, and described public electrode ground connection and be electrically connected with described Section Point.
2. alternating current electrolysis formula liquid level sensor as claimed in claim 1 is characterized in that: described alternating current electrolysis formula liquid level sensor further comprises base and sensor outer housing.
3. alternating current electrolysis formula liquid level sensor as claimed in claim 2, it is characterized in that: described exploring electrode, described public electrode and described base one are injection molded, and described base and described sensor outer housing are hinged, be provided with perforate in described sensor outer housing, and described first lead-in wire is located in the described perforate.
4. alternating current electrolysis formula liquid level sensor as claimed in claim 1 is characterized in that: space between the described exploring electrode, described exploring electrode and described public electrode space.
5. alternating current electrolysis formula liquid level sensor as claimed in claim 1 is characterized in that: described exploring electrode has four.
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CN2010205038888U CN201852615U (en) | 2010-08-24 | 2010-08-24 | Alternating current electrolytic liquid level sensor |
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CN2010205038888U CN201852615U (en) | 2010-08-24 | 2010-08-24 | Alternating current electrolytic liquid level sensor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105784056A (en) * | 2016-03-03 | 2016-07-20 | 广州赛宝仪器设备有限公司 | Current control circuit and electrode water level monitoring device |
CN108253647A (en) * | 2018-01-31 | 2018-07-06 | 淮安信息职业技术学院 | Solar water heater intelligent control circuit |
-
2010
- 2010-08-24 CN CN2010205038888U patent/CN201852615U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105784056A (en) * | 2016-03-03 | 2016-07-20 | 广州赛宝仪器设备有限公司 | Current control circuit and electrode water level monitoring device |
CN108253647A (en) * | 2018-01-31 | 2018-07-06 | 淮安信息职业技术学院 | Solar water heater intelligent control circuit |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20110824 |