CN104089663A - Water flow sensor with water inlet rectification device - Google Patents
Water flow sensor with water inlet rectification device Download PDFInfo
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- CN104089663A CN104089663A CN201410384899.1A CN201410384899A CN104089663A CN 104089663 A CN104089663 A CN 104089663A CN 201410384899 A CN201410384899 A CN 201410384899A CN 104089663 A CN104089663 A CN 104089663A
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- flow sensor
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- water flow
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Abstract
The invention relates to the field of flow sensors, and in particular relates to a rotor type water flow sensor with a water inlet rectification device. The water flow sensor with the water inlet rectification device comprises an impeller, a magnet and an integrated Hall element, wherein a water inlet pipeline of the water flow sensor is internally provided with a liquid rectifier; the liquid rectifier comprises a rectification ring and a rectification core arranged on the rectification ring; a plurality of guide holes are uniformly formed in the top wall and the side wall of the rectification core. Due to adoption of the liquid rectifier at a water inlet of the water flow sensor, the constant temperature of effluent of a water heater is ensured. A rectification core of the liquid rectifier is diverse in shape, the guide holes in the rectification core are irregular holes which can form liquid rectifiers of different models when being matched and the requirements of water heaters of different capacities can be met through liquid rectifiers of the different models.
Description
technical field
The present invention relates to water flow sensor field, particularly for a kind of rotator type water flow sensor with inflow water rectifying device of water heater.
Background technology
Domestic existing gas instantaneous water heater is in the time detecting water-flow signal, what use is water flow sensor, as shown in Figure 1, it is mainly by axle, impeller, magnet, integrated hall element and shell body composition, current enter after sensor cavity, promote vane rotary, the magnet being connected with impeller, also rotation simultaneously, the magnetic field of formation and modification, at this moment give the two ends energising of Hall element, Hall element after energising produces induced electromotive force in the magnetic field changing, this signal is through the shaping of integrated hall element rear class, amplify after processing, obtain a pulse signal 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, and 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 variation, causes that the output pulse signal frequency of Hall element in water flow sensor is not 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 be worked, water temperature constancy is by variation (likely not constant temperature).
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Summary of the invention
The object of the invention is to overcome existing deficiency in prior art, a kind of water flow sensor with inflow water rectifying device is provided, this water flow sensor can accurately transmit flow information of water to ensure water outlet of water heater temperature constant.
In order to realize foregoing invention object, the invention provides following technical scheme:
With the water flow sensor of inflow water rectifying device, comprise impeller, magnet, integrated hall element, 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, is evenly provided with multiple pod apertures on the roof of described rectification core and sidewall.
In the above-mentioned water flow sensor with 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 to the inlet channel place of housing by mounting hole, is also convenient to take out safeguard simultaneously.
In the above-mentioned water flow sensor with inflow water rectifying device, the cylindrical rectification core that described rectification core is hollow or conical rectification core.
In the above-mentioned water flow sensor with inflow water rectifying device, described pod apertures is profile hole, and pod apertures can be circular, square or triangular form aperture.
In the above-mentioned water flow sensor with inflow water rectifying device, the area of described pod apertures is less than 1mm
2.
In the above-mentioned water flow sensor with inflow water rectifying device, the pod apertures total area distributing on described rectification core roof and sidewall is greater than or equals the throat area in water flow sensor, to ensure that in sensor, current are unobstructed.
The present invention is mainly that the current 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, thereby make the rotating speed of impeller become stable linear relationship with the water yield of flowing through, thereby the current in convection current flow of inlet water sensor housing carry out accurate-metering, ensure the water termostat that of water heater.
compared with prior art, beneficial effect of the present invention:the present invention, owing to being provided with liquid rectifier at water flow sensor water inlet, can ensure the realization of water outlet of water heater temperature constant.The rectification core shape of liquid rectifier is various, and the pod apertures being arranged on rectification core can be various profile holes, 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.
brief description of the drawings:
Fig. 1 is the structural representation of existing water flow sensor;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of liquid rectifier in the present invention;
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 present invention is further illustrated.
In order to make object, technical scheme and the advantage of invention clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
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, in the inlet channel 4 of described water flow sensor, be provided with liquid rectifier 2, described liquid rectifier comprises collector ring 21 and is arranged on the cylindrical rectification core 22 on collector ring 21, collector ring 21 and cylindrical rectification core 22, by Shooting Technique global formation, are evenly provided with multiple areas on cylindrical rectification core 22 roofs and are less than 1mm
2circular pod apertures 231, enter the turbulent current of liquid rectifier 2, after flowing out, become laminar flow streamflow regime through multiple circular pod apertures 231 on rectification core 22 roofs; On the sidewall of rectification core 22, be equally evenly provided with the square pod apertures 232 that multiple areas are less than 1mm, the square pod apertures 232 arranging on sidewall contributes to increase water flow, regular water (flow) direction simultaneously, makes current be laminar condition along water flow sensor inner-walls of duct and flows.
All pod apertures (circular pod apertures 231, the square pod apertures 232) total area distributing on rectification core 22 roofs and sidewall is greater than aditus laryngis 3 areas (the water inlet pipeline 4 that the area of aditus laryngis is water flow sensor and the sectional area of impeller box 5 intersections) in water flow sensor, because under identical influent pressure, in order not make liquid rectifier 2 become the restriction device of current ingoing stream quantity sensor, affect water flow, therefore require the discharge area of rectification core 22 on liquid rectifier 2 to be greater than aditus laryngis 3 areas 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 to inlet channel 4 places 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, thereby make the rotating speed of impeller become stable linear relationship with the water yield of flowing through, and then realize the fast constant temperature of water heater.Rectification core 22 shapes of liquid rectifier 2 can also be conical, the pod apertures 23 being arranged on rectification core 22 can be also 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 invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. with the water flow sensor of 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, is evenly provided with multiple pod apertures on the roof of described rectification core and sidewall.
2. the water flow sensor with inflow water rectifying device according to claim 1, is characterized in that: the cylindrical rectification core that described rectification core is 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 profile hole.
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 distributing on described rectification core roof and sidewall is greater than or equals the throat area in water flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384899.1A CN104089663A (en) | 2014-08-07 | 2014-08-07 | Water flow sensor with water inlet rectification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384899.1A CN104089663A (en) | 2014-08-07 | 2014-08-07 | Water flow sensor with water inlet rectification device |
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| Publication Number | Publication Date |
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| CN104089663A true CN104089663A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410384899.1A Pending CN104089663A (en) | 2014-08-07 | 2014-08-07 | Water flow sensor with water inlet rectification device |
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| CN (1) | CN104089663A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841754A (en) * | 2016-05-13 | 2016-08-10 | 广东万家乐燃气具有限公司 | Water flow sensor for water heater |
| CN107940088A (en) * | 2017-12-19 | 2018-04-20 | 广东铃木智能科技有限公司 | A kind of water inlet valve assembly for changing output signal frequency |
| CN114935368A (en) * | 2022-06-10 | 2022-08-23 | 陕西秦北检验检测有限公司 | Pressure and flow detection device for storage tank accessory |
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| CN201819707U (en) * | 2010-10-19 | 2011-05-04 | 宁波市埃美仪表制造有限公司 | Dry type water meter with horizontally rotatable counter |
| CN202420598U (en) * | 2012-01-11 | 2012-09-05 | 广东万和新电气股份有限公司 | Structure for connecting water flow sensor with hot water device |
| CN102661762A (en) * | 2012-05-15 | 2012-09-12 | 江苏正本净化节水科技实业有限公司 | Flow sensor |
| CN202869580U (en) * | 2012-10-11 | 2013-04-10 | 宁波水表股份有限公司 | Water meter filter net |
| CN204101099U (en) * | 2014-08-07 | 2015-01-14 | 成都前锋电子有限责任公司 | A kind of water flow sensor with inflow water rectifying device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201819707U (en) * | 2010-10-19 | 2011-05-04 | 宁波市埃美仪表制造有限公司 | Dry type water meter with horizontally rotatable counter |
| CN202420598U (en) * | 2012-01-11 | 2012-09-05 | 广东万和新电气股份有限公司 | Structure for connecting water flow sensor with hot water device |
| CN102661762A (en) * | 2012-05-15 | 2012-09-12 | 江苏正本净化节水科技实业有限公司 | Flow sensor |
| CN202869580U (en) * | 2012-10-11 | 2013-04-10 | 宁波水表股份有限公司 | Water meter filter net |
| CN204101099U (en) * | 2014-08-07 | 2015-01-14 | 成都前锋电子有限责任公司 | A kind of water flow sensor with inflow water rectifying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841754A (en) * | 2016-05-13 | 2016-08-10 | 广东万家乐燃气具有限公司 | Water flow sensor for water heater |
| CN107940088A (en) * | 2017-12-19 | 2018-04-20 | 广东铃木智能科技有限公司 | A kind of water inlet valve assembly for changing output signal frequency |
| CN114935368A (en) * | 2022-06-10 | 2022-08-23 | 陕西秦北检验检测有限公司 | Pressure and flow detection device for storage tank accessory |
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Application publication date: 20141008 |