CN204101099U - A kind of water flow sensor with inflow water rectifying device - Google Patents
A kind of water flow sensor with inflow water rectifying device Download PDFInfo
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- CN204101099U CN204101099U CN201420442104.3U CN201420442104U CN204101099U CN 204101099 U CN204101099 U CN 204101099U CN 201420442104 U CN201420442104 U CN 201420442104U CN 204101099 U CN204101099 U CN 204101099U
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Abstract
The utility model relates to water flow sensor field, particularly for a kind of water flow sensor with inflow water rectifying device in water heater.With the water flow sensor of inflow water rectifying device, comprise impeller, magnet, integrated hall element, liquid rectifier is provided with in the inlet channel of described water flow sensor, described liquid rectifier comprises collector ring and is arranged on the rectification core on collector ring, and the roof of described rectification core and sidewall are evenly provided with multiple pod apertures.The utility model, owing to being provided with liquid rectifier at water flow sensor water inlet, can ensure the realization that outlet water temperature of water heater is constant.The rectification core various shapes of liquid rectifier, the pod apertures be arranged on rectification core can be various profile hole, and being fitted to each other to form the liquid rectifier of different model, selects the liquid rectifier of different model can meet the requirement of different capabilities water heater.
Description
technical field
The utility model relates to water flow sensor field, particularly for a kind of rotator type water flow sensor with inflow water rectifying device in water heater.
Background technology
Domestic existing gas instantaneous water heater is when detecting water-flow signal, use water flow sensor, as shown in Figure 1, it is primarily of axle, impeller, magnet, integrated hall element and shell body composition, after current enter sensor cavity, promote vane rotary, the magnet be connected with impeller, also rotate simultaneously, the magnetic field of formation and modification, at this moment be energized to the two ends of Hall element, Hall element after energising produces induced electromotive force in the magnetic field of change, this signal is through the shaping of integrated hall element rear class, after amplifying process, a pulse signal is obtained at output terminal, the frequency of this pulse signal is directly proportional to wheel speed, wheel speed is faster, frequency is higher, vice versa.
At present, gas instantaneous water heater rotator type water flow sensor used in working order under, due to the water inlet of water flow sensor, with the water delivering orifice close together of water heater water inlet connector, easily there is turbulent flow in current, water (flow) direction is by off-axis direction, cause wheel speed unstable, the rotating speed of rotor is not directly proportional to discharge, and rotating speed, along with discharge is by non-linear change, causes the output pulse signal frequency of Hall element in water flow sensor not to be directly proportional to the rotating speed of magnet rotor.Be reflected on water heater and show as: actual discharge and sensor output pulse signal frequency are not linear relationship (f ≠ K*q, f-pulse signal frequency, q-discharge, K-coefficients); Water heater or under low streamflow regime (as:≤5L/min), cannot start work; Even if water heater can work but water temperature constancy will be deteriorated (likely not constant temperature).
Utility model content
The purpose of this utility model is to overcome deficiency existing in prior art, and provide a kind of water flow sensor with inflow water rectifying device, this water flow sensor accurately can transmit flow information of water to ensure that outlet water temperature of water heater is constant.
In order to realize above-mentioned utility model object, the utility model provides following technical scheme:
A kind of water flow sensor with inflow water rectifying device, comprise impeller, magnet, integrated hall element, liquid rectifier is provided with in the inlet channel of described water flow sensor, described liquid rectifier comprises collector ring and is arranged on the rectification core on collector ring, and the roof of described rectification core and sidewall are evenly provided with multiple pod apertures.
Above-mentioned with in the water flow sensor of inflow water rectifying device, the sidewall surrounding of described collector ring is evenly distributed with four mounting holes, liquid rectifier can be fixedly mounted on the inlet channel place of housing by mounting hole, is also convenient to take out safeguard simultaneously.
Above-mentioned with in the water flow sensor of inflow water rectifying device, described rectification core is the cylindrical rectification core of hollow or conical rectification core.
Above-mentioned with in the water flow sensor of inflow water rectifying device, described pod apertures is profile hole, and pod apertures can be circular, square or triangular form aperture.
Above-mentioned with in the water flow sensor of inflow water rectifying device, the area of described pod apertures is less than 1mm
2.
Above-mentioned with in the water flow sensor of inflow water rectifying device, the pod apertures total area that described rectification core roof and sidewall distribute is greater than or equals the throat area in water flow sensor, to ensure that in sensor, current are unobstructed.
The current of the utility model mainly in convection current flow of inlet water sensor first carry out rectification by liquid rectifier to turbulent flow, make it to become in stable condition laminar flow, laminar flow drive impeller after stable is rotated, thus the rotating speed making impeller becomes stable linear relationship with the water yield flowed through, thus the current in convection current flow of inlet water sensor housing carry out accurate-metering, what ensure that water heater goes out water termostat.
compared with prior art, the beneficial effects of the utility model:the utility model, owing to being provided with liquid rectifier at water flow sensor water inlet, can ensure the realization that outlet water temperature of water heater is constant.The rectification core various shapes of liquid rectifier, the pod apertures be arranged on rectification core can be various profile hole, and being fitted to each other to form the liquid rectifier of different model, selects the liquid rectifier of different model can meet the requirement of different capabilities water heater.
accompanying drawing explanation
Fig. 1 is the structural representation of existing water flow sensor;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of liquid rectifier in the utility model;
Fig. 4 is the front elevation of Fig. 3.
Mark in figure: 1-water flow sensor housing, 2-liquid rectifier, 21-collector ring, 22-rectification core, the circular pod apertures of 231-, the square pod apertures of 232-, 24-mounting hole, 3-aditus laryngis, 4-inlet channel, 5-impeller box, A-water inlet, B-water delivering orifice.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In order to make the object of utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
As shown in Figure 2, the present embodiment is with the water flow sensor of inflow water rectifying device, comprise axle, impeller, magnet, integrated hall element and water flow sensor housing 1, liquid rectifier 2 is provided with in the inlet channel 4 of described water flow sensor, the cylindrical rectification core 22 that described liquid rectifier comprises collector ring 21 and is arranged on collector ring 21, collector ring 21 and cylindrical rectification core 22, by Shooting Technique global formation, cylindrical rectification core 22 roof are evenly provided with multiple area and are less than 1mm
2circular pod apertures 231, enter the turbulent current of liquid rectifier 2, after circular pod apertures 231 multiple on rectification core 22 roof flows out, become laminar flow streamflow regime; The sidewall of rectification core 22 is equally evenly provided with the square pod apertures 232 that multiple area is less than 1mm, the square pod apertures 232 that sidewall is arranged contributes to increasing water flow, regular water (flow) direction simultaneously, makes current be laminar condition flowing along water flow sensor inner-walls of duct.
All pod apertures (circular pod apertures 231, the square pod apertures 232) total area that rectification core 22 roof and sidewall distribute is greater than aditus laryngis 3 area (area of aditus laryngis is the water inlet conduit 4 of water flow sensor and the sectional area of impeller box 5 intersection) in water flow sensor, because under identical influent pressure, in order to the restriction device not making liquid rectifier 2 become current ingoing stream quantity sensor, affect water flow, therefore require that the discharge area of rectification core 22 on liquid rectifier 2 is greater than aditus laryngis 3 area in water flow sensor.The sidewall surrounding of described collector ring 21 is evenly distributed with four mounting holes 24, liquid rectifier 2 can be fixedly mounted on inlet channel 4 place of housing by mounting hole 24, is also convenient to take out safeguard simultaneously.
The current of ingoing stream quantity sensor first carry out rectification by liquid rectifier 2 to turbulent flow, make it to become in stable condition laminar flow, laminar flow after stable enters impeller box drive impeller and rotates, thus the rotating speed making impeller becomes stable linear relationship with the water yield flowed through, and then realize the fast constant temperature of water heater.Rectification core 22 shape of liquid rectifier 2 can also be conical, the pod apertures 23 be arranged on rectification core 22 also can be circular, square or triangular form aperture, be fitted to each other and can form the liquid rectifier of different model, select the liquid rectifier of different model can meet the requirement of different capabilities water heater.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the water flow sensor with inflow water rectifying device, comprise impeller, magnet, integrated hall element, it is characterized in that: in the inlet channel of described water flow sensor, be provided with liquid rectifier, described liquid rectifier comprises collector ring and is arranged on the rectification core on collector ring, and the roof of described rectification core and sidewall are evenly provided with multiple pod apertures.
2. the water flow sensor with inflow water rectifying device according to claim 1, is characterized in that: described rectification core is the cylindrical rectification core of hollow or conical rectification core.
3. the water flow sensor with inflow water rectifying device according to claim 1 and 2, is characterized in that: described pod apertures is circular, square or triangular form aperture.
4. the water flow sensor with inflow water rectifying device according to claim 3, is characterized in that: the area of described pod apertures is less than 1mm
2.
5. the water flow sensor with inflow water rectifying device according to claim 1, is characterized in that: the pod apertures total area that described rectification core roof and sidewall distribute is greater than or equals the throat area in water flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442104.3U CN204101099U (en) | 2014-08-07 | 2014-08-07 | A kind of water flow sensor with inflow water rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442104.3U CN204101099U (en) | 2014-08-07 | 2014-08-07 | A kind of water flow sensor with inflow water rectifying device |
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| CN204101099U true CN204101099U (en) | 2015-01-14 |
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| CN201420442104.3U Active CN204101099U (en) | 2014-08-07 | 2014-08-07 | A kind of water flow sensor with inflow water rectifying device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089663A (en) * | 2014-08-07 | 2014-10-08 | 成都前锋电子有限责任公司 | Water flow sensor with water inlet rectification device |
| CN104614025A (en) * | 2015-02-15 | 2015-05-13 | 广州市中南机电工程有限公司 | Large-diameter pipe flow monitoring device |
| CN107270976A (en) * | 2017-07-25 | 2017-10-20 | 上海小寻科技有限公司 | A kind of intelligent flow meter |
| CN108378707A (en) * | 2018-02-08 | 2018-08-10 | 无锡鼎加弘思饮品科技有限公司 | There is the flowmeter and its current stabilization method of current-stabilizing structure inside capsule coffee machine |
| CN110143642A (en) * | 2019-06-03 | 2019-08-20 | 深圳市侑为技术有限公司 | A kind of overflow-type water sterilizing unit and purifier |
-
2014
- 2014-08-07 CN CN201420442104.3U patent/CN204101099U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089663A (en) * | 2014-08-07 | 2014-10-08 | 成都前锋电子有限责任公司 | Water flow sensor with water inlet rectification device |
| CN104614025A (en) * | 2015-02-15 | 2015-05-13 | 广州市中南机电工程有限公司 | Large-diameter pipe flow monitoring device |
| CN107270976A (en) * | 2017-07-25 | 2017-10-20 | 上海小寻科技有限公司 | A kind of intelligent flow meter |
| CN108378707A (en) * | 2018-02-08 | 2018-08-10 | 无锡鼎加弘思饮品科技有限公司 | There is the flowmeter and its current stabilization method of current-stabilizing structure inside capsule coffee machine |
| CN110143642A (en) * | 2019-06-03 | 2019-08-20 | 深圳市侑为技术有限公司 | A kind of overflow-type water sterilizing unit and purifier |
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