CN2454763Y - Solar water heator tempmerature-level sensor - Google Patents
Solar water heator tempmerature-level sensor Download PDFInfo
- Publication number
- CN2454763Y CN2454763Y CN00257048U CN00257048U CN2454763Y CN 2454763 Y CN2454763 Y CN 2454763Y CN 00257048 U CN00257048 U CN 00257048U CN 00257048 U CN00257048 U CN 00257048U CN 2454763 Y CN2454763 Y CN 2454763Y
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- China
- Prior art keywords
- pin
- integrated circuit
- liquid level
- resistance
- water temperature
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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.)
- Expired - Fee Related
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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
- Y02E10/44—Heat exchange systems
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a temperature and water level sensor for a solar water heater, which is composed of a casing, a water temperature and level detecting oscillating circuit, a three-way pipe and a water temperature and level detecting probe, wherein, the water temperature and level detecting oscillating circuit is fixed in the casing, and the casing is sealed and connected with the left end of the three-way pipe. The water temperature and level detecting probe is connected with the left end of the three-way pipe by a guide pipe, the middle pipe opening of the three-way pipe is horizontally connected with an air exhaustion overflow pipe downwards a little, and the right end of the three-way pipe is directly fixed on an overflow pipe of the solar water heater by an inner screw. The temperature and water level sensor for the solar water heater has the advantages of reasonable design, simple structure, easy manufacture, convenient installation and operation, long service life of the sensor, etc.
Description
The utility model relates to a kind of solar water heater accessory, specifically a kind of solar water heater temperature liquid level sensor that is used to detect solar water heater water storage tank water temperature and liquid level.
The casing that the in use existing deficiency of sun power water storage tank temperature liquid level sensor of prior art is to encapsulate sensing circuit is by bend pipe extruding run-down pipe and fix, and makes anti-upwards installation of cover, the similar big bowl of a pipe of shape of drenching.Because center of gravity on the upper side, bend pipe of long duration is easily loosening, the part that bend pipe is bent upwards can be under action of gravity, is that the axle center is turned over turnback and become and be bent downwardly with the bend pipe horizontal component, and the result is that the water that overflows from water storage tank or rainwater are just irritated into and to be made in the casing that circuit is impaired to be scrapped.A deficiency is that the sensor that is immersed in the water storage tank is popped one's head in when work again, constantly there is DC current to produce between working electrode, carbanion that dissolves in the water and calcium magnesium plasma can produce electrochemical reaction and cause incrusted deposit on the detection probe electrode, meeting of a specified duration reduces the sensitivity of detection probe.
The purpose of this utility model provides that a kind of simple in structure, sealing is strong, casing can not intake, incrustation scale is difficult for deposition, can improves the solar water heater temperature liquid level sensor in serviceable life on probe.
The purpose of this utility model realizes in the following manner: damage the circuit in the casing for preventing the unexpected spilling water of water storage tank, adopt a three-way pipe that the casing and the water temperature Liquid level test probe of permanent circuit are linked together, the water that overflows from water storage tank can flow out by the exhaustion spill pipe that is enclosed within three-way pipe, the water temperature Liquid level test probe adopts ordinary silicon rubber and the compound one-shot forming of conductive silicon rubber, in the water temperature liquid level detection circuit, increase vibration, thereby make detecting electrode constantly change the deposition that polarity has delayed incrustation scale.Measure portion of the present utility model adopts one-shot forming, promptly wiring board is enclosed in the silica gel the inside, the detection probe part is arranged one-shot forming by conductive segment and non-conductive spacer segment, having abandoned former sensor measurement partly needs the characteristics of segmentation welding, segmented assembly, save material and manpower, improved the reliability of element.When sensor is worked in water in the past, have a direct current voltage to exist between common port electrode under water and another utmost point in the water, the time has been grown, the easy scaling of sensor and influence measuring accuracy and result of use.What produce between this novel sensor electrode is oscillating current, and its direction constantly changes, and the incrustation scale ion can constantly move about at two interpolars, has reduced the possibility of sensor fouling, and its life-span is prolonged, and measures accurately.Sensor holder of the present invention is threaded with solar water container by the right pipe of three-way pipe, and installation reliability is good, simultaneously again because of the water heater run-down pipe is vertical with the wiring board encapsulating face, drenches the generation of sensor line plate thing when having avoided water tank accident spilling water.The sensor casing adopts the integrated making of plastics, and relatively metalwork is corrosion-resistant, and the life-span is long, and cost is low.
The principle of work of water temperature Level Detection oscillatory circuit is as follows:
Liquid level sensor is an electric pole type, has five electrode gap to arrange on the measuring sonde, is public electrode bottom, and other four is level electrode.These five electrodes are the electric silica gel section, and four sections insulation silica gel are distributed in the middle of five electrodes, and five electrodes are insulated from each other, and the whole sensor probe is the mould one-shot forming.Because the detection probe of silica gel is the easy scale effect precision in surface in hot water, for this reason, has introduced vibration in operating circuit, the incrustation scale ion is moved about between electrode back and forth and reduce fouling, the life-span of sensor has obtained prolongation.
Form an oscillatory circuit with reverser 40106,560K resistance and 0.1 υ F electric capacity in the circuit, produce G and non-two the reciprocal oscillator signals of G.G connects the public electrode of sensor measurement probe and is input to an input end of 4,070 four XOR gate of integrated package; Another oscillator signal G is non-to be divided into four tunnel four level electrodes that are connected to the level gauging bar respectively by 560K resistance, and be input to another input ends of 4070 XOR gate, four output terminals of integrated package 4070 XOR gate by 20K resistance link+5v power supply VCC on, the VDD of integrated package 4070 connects+5V power supply VCC, and VSS arrives ground by 100 Europe resistance.Sensor does not have in the entry, when there not being liquid is that electrode is not when having in the entry, four XOR gate input ends are respectively G and G, four output terminals all are low level, VCC has a static state oppositely to pour into electric current from the output terminal to VSS by four 20K resistance, level electrode of every immersion, this level electrode public electrode conducts electricity by water, one tens kilo-ohms resistance is arranged between them, this resistance and 560K electric resistance partial pressure, make level electrode input XOR gate two incoming levels identical, XOR gate output becomes high level by low level, makes so oppositely to pour into the electric current increase, and electrode whenever submerges, this oppositely pours into electric current increases a step value, this oppositely pours into electric current and produce a voltage drop on 100 Europe resistance, and pressure drop changes with pouring into electric current, and this pressure drop is amplified through amplifier LM358, after process filtering filtering interfering, be input to the I/O mouth of single-chip microcomputer, handle producing four sections liquid level signals through single-chip microcomputer.
Accompanying drawing 1 is the structural representation of solar water heater temperature liquid level sensor.
Solar water heater temperature-liquid level sensor of the present utility model is done following detailed with reference to Figure of description Describe in detail bright.
Solar water heater temperature-liquid level sensor of the present utility model, its structure are by casing 1, water temperature liquid Position detection oscillating circuit 2, three-way pipe 3 and water temperature Liquid level test probe consist of, and the water temperature liquid level detects shakes Swing circuit 2 and be fixed among the casing 1, casing 1 joins the inspection of water temperature liquid level with the left port sealing of three-way pipe 3 The probing head passes by the right output port of conduit 4 from three-way pipe 3, and the horizontal saliva of intervalve mouth of three-way pipe 3 is flat slightly downward With exhaust overflow pipe 5 sockets.
The water temperature Liquid level test probe is disposable by ordinary silicon rubber segments 6 and liquid level detection conductive silicon rubber section 7 Be combined with each other, liquid level detects the centre that conductive silicon rubber section 7 is disposed on ordinary silicon rubber 6, water temperature The test section is placed in the conductive silicon rubber section 6. It is that water temperature liquid level detection circuit A and oscillating circuit B form the water temperature liquid level that the water temperature liquid level detects oscillating circuit 2 Testing circuit A forms the loop by IC 2, IC3, resistance R 2-R13, capacitor C 2. Integrated electric Each pin of road IC2 with being connected of other element is: 13,8,6,1 pin as the liquid level signal input respectively Serial connection is as resistance R 2, R3, R4, the R5 of level sensing electrode, resistance R 2, R3, R4, R5 in addition One end also connects 10 pin of IC 1; 12,9,5,2 pin of IC 2 are as level sensing The common port of electrode also connects 8 pin of IC 1; 11,10,4 and 3 pin of IC 2 respectively Series resistor R6, R7, R8, R9, the other end of resistance R 6, R7, R8, R9 also connects power cathode, 14 pin of IC 2 meet positive source+5V, and 7 pin series resistor R10 connect 1 pin of IC 3, Resistance R 12 and R13 are serially connected between 2 pin and 3 pin of IC 3, and capacitor C 2 is serially connected in integrated circuit Between 1 pin, 2 pin of IC3,2 pin ground connection, resistance R 11 be attempted by 7 pin of IC 2 and ground wire it Between, 3 pin of IC 3 connect the governor circuit of solar water heater.
Oscillating circuit B is made up of IC 1, resistance R 1, capacitor C 1, wherein IC 1 Each pin with capacitor C 1, being connected of resistance R 1 is: the two ends of capacitor C 1 also connect between 1 pin and 4,5 pin 1 Pin and 13 pin and connecting resistance R1,2 and 3 pin: 6 and 9 pin and 11 and 12 pin connect together, and 14 pin connect power supply + 5V, 7 pin ground connection.
Embodiment:
Its processing and fabricating of solar water heater temperature liquid level sensor of the present utility model is very simple and convenient, and processing and manufacturing gets final product shown in the by specification accompanying drawing.Connecting the casing that detects oscillatory circuit can make by traditional injection moulding technology.Each components and parts is the commercially available prod in the circuit, welds the errorless work that gets final product by circuit, and the water temperature Liquid level test probe is conduction and non-conductive silicon rubber spare, and its processing and fabricating can be processed by the rubber processing technology.
The model of the ic chip 1 in the circuit is 40106; The model of IC2 is 4070; The model of IC3 is LM358, is commercially available standard integrated circuit.
Solar water heater temperature liquid level sensor of the present utility model is compared with prior art, have reasonable in design, simple in structure, be easy to process, easy to install, good airproof performance, anti-water logging, non-scaling and the characteristics such as serviceable life that can prolong sensor, thereby, have good value for applications.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (4)
1. solar water heater temperature liquid level sensor, comprise casing 1, water temperature Level Detection oscillatory circuit, three-way pipe and water temperature Liquid level test probe, it is characterized in that water temperature Level Detection oscillatory circuit is fixed among the casing, the left port sealing of casing and three-way pipe is joined, the water temperature Liquid level test probe passes by the right output port of conduit from three-way pipe, and the horizontal saliva of intervalve mouth of three-way pipe is put down slightly downwards and the exhaustion spill pipe box connects.
2. solar water heater temperature liquid level sensor according to claim 1, it is characterized in that the water temperature Liquid level test probe is by ordinary silicon rubber segments and disposable being combined with each other of Level Detection conductive silicon rubber section, Level Detection conductive silicon rubber spacer segment is arranged on the centre of ordinary silicon rubber, and the water temperature test section is placed in the conductive silicon rubber section.
3. solar water heater temperature liquid level sensor according to claim 1 is characterized in that water temperature Level Detection oscillatory circuit is made up of water temperature liquid level detection circuit A and oscillatory circuit B.Water temperature liquid level detection circuit A forms the loop by integrated circuit (IC) 2, IC3, resistance R 2-R13, capacitor C 2, each pin of integrated circuit (IC) 2 with being connected of other element is: 13,8,6,1 pin is connected in series resistance R 2, R3, R4, R5 as the level sensing electrode respectively as the liquid level signal input end, and the other end of resistance R 2, R3, R4, R5 also connects 10 pin of integrated circuit (IC) 1; 12,9,5,2 pin of integrated circuit (IC) 2 are as the common port of level sensing electrode and connect 8 pin of integrated circuit (IC) 1; 11,10,4 and 3 pin of integrated circuit (IC) 2 are series resistor R6, R7, R8, R9 respectively, the other end of resistance R 6, R7, R8, R9 also connects power cathode, 14 pin of integrated circuit (IC) 2 meet positive source+5V, 7 pin series resistor R10 connect 1 pin of integrated circuit (IC) 3, resistance R 12 and R13 are serially connected between 2 pin and 3 pin of integrated circuit (IC) 3, capacitor C 2 is serially connected between 1 pin, 2 pin of integrated circuit (IC) 3,2 pin ground connection, resistance R 11 is attempted by between 7 pin and ground wire of integrated circuit (IC) 2, and 3 pin of integrated circuit (IC) 3 connect the governor circuit of solar water heater.
4. solar water heater temperature liquid level sensor according to claim 3, it is characterized in that oscillatory circuit B is made up of integrated circuit (IC) 1, resistance R 1, capacitor C 1, wherein each pin of integrated circuit (IC) 1 with capacitor C 1, being connected of resistance R 1 is: the two ends of capacitor C 1 also connect between 1 pin and 4,5 pin, 1 pin and 13 pin and connecting resistance R1,2 and 3 pin; 6 and 9 pin and 11 and 12 pin connect together, and 14 pin meet power supply+5V, 7 pin ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00257048U CN2454763Y (en) | 2000-12-14 | 2000-12-14 | Solar water heator tempmerature-level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00257048U CN2454763Y (en) | 2000-12-14 | 2000-12-14 | Solar water heator tempmerature-level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454763Y true CN2454763Y (en) | 2001-10-17 |
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ID=33613639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00257048U Expired - Fee Related CN2454763Y (en) | 2000-12-14 | 2000-12-14 | Solar water heator tempmerature-level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454763Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980629A (en) * | 2012-11-23 | 2013-03-20 | 福建兢辉环保科技有限公司 | Evaporator air conditioner and water-level detecting device thereof |
-
2000
- 2000-12-14 CN CN00257048U patent/CN2454763Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980629A (en) * | 2012-11-23 | 2013-03-20 | 福建兢辉环保科技有限公司 | Evaporator air conditioner and water-level detecting device thereof |
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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 |