CN201731897U - Single-impeller bidirectional flow sensor for solar water heater - Google Patents
Single-impeller bidirectional flow sensor for solar water heater Download PDFInfo
- Publication number
- CN201731897U CN201731897U CN032303157U CN03230315U CN201731897U CN 201731897 U CN201731897 U CN 201731897U CN 032303157 U CN032303157 U CN 032303157U CN 03230315 U CN03230315 U CN 03230315U CN 201731897 U CN201731897 U CN 201731897U
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- impeller
- water
- permanent
- shell
- water heater
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Abstract
A single-impeller bidirectional flow sensor for a solar water heater comprises an outer casing (1) and an impeller (2). The middle of the impeller (2) is a cylinder (4), at least three permanent steel magnets (8) are fixed on an end surface of the cylinder and are annularly arrayed uniformly, wherein the polarity of the outer end surface of one permanent steel magnet is opposite to the polarity of outer end surfaces of the other permanent steel magnets, and two self-locking Hall elements (10) are fixed on an end plate (9) opposite to the permanent steel magnets on the outer casing, located at annular positions opposite to the permanent steel magnets on the cylinder of the impeller and parallelly arrayed annularly. The single-impeller bidirectional flow sensor for a solar water heater is serially connected into a feeding tube and a drainage tube of the solar water heater, can transmit impulse signals by aid of the Hall elements, measures flow and direction of water, can indicate water quantity in a water tank by aid of proper conversion of an instrument, and does not adopt an electrode soaked into water so as to avoid problems of oxidation, corrosion, scaling and the like of the electrode.
Description
Technical field
The utility model relates to a kind of water yield pick-up unit of solar water heater's water tank, a kind of solar water heater's single impeller bi-directional flow sensor.
Background technology
Solar water heater's the water yield detects, and mostly uses the electric pole type water-level probe that is inserted in the reserve tank at present, as the electric pole type water-level probe of Chinese patent 99239274.8 introductions.This class pick-up unit inserts in the water because electrode is essential, contacts with water for a long time, has electric current to pass through on the electrode again, and phenomenons such as the oxidation of electrode, fouling, corrosion can't be avoided, and influence detects effect and serviceable life.
Summary of the invention
The utility model is intended to propose a kind of water yield pick-up unit that does not have the solar water heater of disadvantages such as anodizing, fouling, a kind ofly measures the pick-up unit of the water yield in the water tank, a kind of solar water heater's single impeller bi-directional flow sensor by flow.
This solar water heater's single impeller bi-directional flow sensor comprises shell and impeller, one cylindrical cavity is arranged in the shell, two water inlet pipe and water outlet pipes are arranged on the sidewall, one side of the line deflection cavity of the axis of two water inlet pipe and water outlet pipes, the middle part of impeller is a right cylinder, is fixing blade around cylindrical, and there is rotating shaft at cylindrical center, impeller places in the cavity of shell, and the end plate center of shell both sides is inserted in rotating shaft.Fixing at least three blocks of permanent-magnet steels on the cylindrical end face on the impeller, circularize evenly distributed, wherein the polarity of a permanent-magnet steel outer face is opposite with the polarity of the outer face of all the other several permanent-magnet steels. fixing two self-locking type Hall elements on the end plate relative on the shell with above-mentioned permanent-magnet steel, these two Hall elements are on the annular location relative with permanent-magnet steel on the impeller right cylinder, arrange side by side mutually along circumferential direction.
When this solar water heater's single impeller bi-directional flow sensor uses, it is connected in solar water heater's the upper and lower water pipe, when last water, water flows into from a water inlet pipe and water outlet pipe on the shell, flows out from another water inlet pipe and water outlet pipe, and current promote wheel rotation.Permanent-magnet steel on the right cylinder at impeller middle part is the Hall element front process on end plate successively, makes Hall element send pulse signal.Because wherein the polarity of the outer face of a permanent-magnet steel is opposite with the polarity of the outer face of all the other several permanent-magnet steels, employed Hall element is again the self-locking type Hall element, thereby impeller whenever turns around, each Hall element will produce a pulse, this pulse is counted, determine the revolution of impeller, can measure the discharge that flows through solar water heater's single impeller bi-directional flow sensor in view of the above.On the other hand, since two Hall elements be in the impeller right cylinder on the corresponding annular location of permanent-magnet steel on, arrange side by side mutually along circumferential direction, between these two two pulses that Hall element produced a phase differential is arranged, and when the water reversed flow, impeller is backward rotation, and the phase place of the waveform that two Hall elements send is intercoursed, and can differentiate the flow direction of water in solar water heater's single impeller bi-directional flow sensor in view of the above.Match with intellectual indicator again, can measure the amount that flows into and flow out the water in the water tank, through suitable conversion, the water yield that can indicate in the water tank to be deposited.From the above, this solar water heater's single impeller bi-directional flow sensor, the water yield that can be by flowing into, flow out water tank detect the existing water yield in the water tank.Because do not use water-immersed electrode, thereby avoided the generation of phenomenons such as anodizing, burn into fouling.
Description of drawings
Accompanying drawing 1 is the structure principle chart of solar water heater's single impeller bi-directional flow sensor;
Accompanying drawing 2 is the structural drawing of impeller;
Accompanying drawing 3 is the structural drawing of end plate;
Accompanying drawing 4 is the A-A cut-open view of Fig. 1;
Detection signal waveform figure when accompanying drawing 5 is the water forward flow;
Detection signal waveform figure when accompanying drawing 6 is the water reversed flow.
Embodiment
As shown in Figure 1 and Figure 4, this solar water heater's single impeller bi-directional flow sensor comprises shell 1 and impeller 2, and a cylindrical cavity is arranged in the shell, and one side of line deflection cavity of the axis of two water inlet pipe and water outlet pipe 5,6, two water inlet pipe and water outlet pipes is arranged on the sidewall.As shown in Figure 2, the middle part of impeller 2 is a right cylinder 4, is fixing blade 3 around cylindrical, and there is rotating shaft 7 at cylindrical center, fixing at least three blocks of permanent-magnet steels 8 on the cylindrical end face on the impeller, be four blocks of permanent-magnet steels among the figure, circularize evenly distributedly that wherein the polarity of a permanent-magnet steel outer face is opposite with the polarity of the outer face of all the other several permanent-magnet steels, for example, one is the S utmost point, and its excess-three piece is the N utmost point, and vice versa.Impeller places in the cavity of shell, and the end plate center of shell both sides is inserted in rotating shaft.As shown in Figure 3 and Figure 4, fixing two self-locking type Hall elements 10 on the end plate 9 relative with above-mentioned permanent-magnet steel on the shell, these two Hall elements are on the annular location relative with permanent-magnet steel 8 on the impeller right cylinder, arrange side by side mutually along circumferential direction.
This solar water heater's single impeller bi-directional flow sensor is applicable to that upper and lower water uses the solar water heater of same pipe, and it is connected in the upper and lower water pipe, and when water tank added water, current promoted impeller 2 forward rotation.Permanent-magnet steel 8 on the right cylinder 4 at impeller middle part is the 10 front processes of the Hall element on end plate 9 successively, make the Hall element action, send pulse signal, and its waveform as shown in Figure 5.The waveform of first Hall element of solid line 11 expressions among the figure, dotted line 12 is the waveform of second Hall element.Two waveforms have a phase differential.This phase differential approximates the angle of two Hall elements 10 with respect to end plate 9 centers greatly.When the water reversed flow, when promptly outwards discharging water in water tank, impeller is backward rotation, the pulse signal waveform that two Hall elements send as shown in Figure 6, the phase place of two waveforms is intercoursed.To the detection of the phase differential of these two waveforms, can differentiate water tank and be in and add the water state state that still discharges water.Above-mentioned signal can show the existing water yield in the water tank through the suitable conversion of intellectual indicator.
When this solar water heater's single impeller bi-directional flow sensor uses, can match with the full sensor of a water.The full sensor of water is installed on the gap of water tank, when adding water for the first time, write down the water yield that enters water tank by intellectual indicator, when the full sensor of water has the full signal of water to export, stop to add water, simultaneously, the water yield that makes indicator show is a trunkful, and with this as the metering and the benchmark of indicated water level, afterwards discharge water and the water inlet process in subtract, add, the demonstration water yield.After this, when adding water to the full signal of the full sensor output of water water, indicator all will once reset, and indicator shows that the water yield is returned to the trunkful state, can eliminate in metering process because of adding, subtract the accumulated error that may occur repeatedly.
Claims (1)
1. solar water heater's single impeller bi-directional flow sensor, comprise shell (1) and impeller (2), one cylindrical cavity is arranged in the shell, two water inlet pipe and water outlet pipes (5) are arranged on the sidewall, (6), one side of the line deflection cavity of the axis of two water inlet pipe and water outlet pipes, the middle part of impeller (2) is a right cylinder (4), fixing blade (3) around cylindrical, there is rotating shaft (7) at cylindrical center, impeller places in the cavity of shell, the end plate center of shell both sides is inserted in rotating shaft, it is characterized in that fixing at least three blocks of permanent-magnet steels (8) on the cylindrical end face on the impeller, circularize evenly distributed, wherein the polarity of a permanent-magnet steel outer face is opposite with the polarity of the outer face of all the other several permanent-magnet steels, fixing two self-locking type Hall elements (10) on the end plate (9) relative with above-mentioned permanent-magnet steel on the shell, these two Hall elements are on the annular location relative with permanent-magnet steel on the impeller right cylinder, arrange side by side mutually along circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN032303157U CN201731897U (en) | 2003-04-09 | 2003-04-09 | Single-impeller bidirectional flow sensor for solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN032303157U CN201731897U (en) | 2003-04-09 | 2003-04-09 | Single-impeller bidirectional flow sensor for solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731897U true CN201731897U (en) | 2011-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN032303157U Expired - Fee Related CN201731897U (en) | 2003-04-09 | 2003-04-09 | Single-impeller bidirectional flow sensor for solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731897U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218873A (en) * | 2013-03-28 | 2013-07-24 | 桂林市利通电子科技有限责任公司 | Wireless remote-transmission intelligent water meter |
| CN108731765A (en) * | 2018-06-01 | 2018-11-02 | 陕西九杰智能仪表有限公司 | A kind of bidirectional self-locking Hall pulse collection method |
| US10620022B2 (en) | 2018-03-09 | 2020-04-14 | Baker Hughes, A Ge Company, Llc | Flow meter and method for measuring fluid flow |
-
2003
- 2003-04-09 CN CN032303157U patent/CN201731897U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218873A (en) * | 2013-03-28 | 2013-07-24 | 桂林市利通电子科技有限责任公司 | Wireless remote-transmission intelligent water meter |
| US10620022B2 (en) | 2018-03-09 | 2020-04-14 | Baker Hughes, A Ge Company, Llc | Flow meter and method for measuring fluid flow |
| CN108731765A (en) * | 2018-06-01 | 2018-11-02 | 陕西九杰智能仪表有限公司 | A kind of bidirectional self-locking Hall pulse collection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110202 Termination date: 20110409 |