CN111422957A - Electromagnetic water treatment device and water heater comprising same - Google Patents
Electromagnetic water treatment device and water heater comprising same Download PDFInfo
- Publication number
- CN111422957A CN111422957A CN201910020177.0A CN201910020177A CN111422957A CN 111422957 A CN111422957 A CN 111422957A CN 201910020177 A CN201910020177 A CN 201910020177A CN 111422957 A CN111422957 A CN 111422957A
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- CN
- China
- Prior art keywords
- electromagnet
- water treatment
- treatment device
- permanent magnet
- electromagnetic water
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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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/48—Devices for applying magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
Abstract
The invention discloses an electromagnetic water treatment device and a water heater comprising the same. This electromagnetism water treatment facilities includes: the water flow detection device comprises a shell, a water flow detection unit, and a tubular object, an electromagnet, a permanent magnet and an elastic component which are arranged in the shell. The water flow detection unit is arranged at the water inlet of the tubular object and is electrically connected to the electromagnet; the electromagnet and the permanent magnet are arranged on the side edge of the tubular object, the electromagnet is positioned between the permanent magnet and the tubular object, and the elastic component biases the electromagnet towards the permanent magnet. The electromagnetic water treatment device is arranged at the water inlet end of the water heater. The electromagnetic water treatment device realizes the control of the electromagnetic field generated in the tubular object according to the water flow through the electric connection of the water flow detection unit and the electromagnet, thereby uniformly purifying the water quality. The water quality of the water heater provided with the electromagnetic water treatment device can be more uniform.
Description
Technical Field
The invention relates to an electromagnetic water treatment device and a water heater comprising the same.
Background
Modern domestic water is mainly supplied by tap water plants through water pipes. The service life of the tap water pipeline is long, and impurities such as scrap iron, dirt and the like can appear in the water pipeline. Impurities such as iron chips affect user experience, and impurities of water scales affect heat exchange efficiency and service life of the water pipe.
Aiming at the problems, drinking water is generally purified by adopting a multilayer filter membrane technology; however, the quality of domestic water, such as water for bathing, washing hands and vegetables, is easily overlooked. But consumer concerns over health have risen year by year.
The electromagnetic scale prevention device can effectively remove impurities such as scrap iron and the like in water, can also change the crystallization process of an electrolyte solution, and effectively slow down the scaling of a water pipe.
However, the existing electromagnetic scale prevention device cannot adjust the magnetic field according to water flow, so that the purification effect is uneven.
Disclosure of Invention
The invention aims to overcome the defect of uneven purification effect of an electromagnetic scale prevention device in the prior art, and provides an electromagnetic water treatment device and a water heater comprising the same.
The invention solves the technical problems through the following technical scheme:
an electromagnetic water treatment apparatus, comprising: the water flow detection device comprises a shell, a water flow detection unit, a tubular object, an electromagnet, a permanent magnet and an elastic component, wherein the tubular object, the electromagnet, the permanent magnet and the elastic component are arranged in the shell;
the water flow detection unit is arranged at the water inlet of the tubular object and is electrically connected to the electromagnet;
the electromagnet and the permanent magnet are arranged on the side edge of the tubular object, the electromagnet is positioned between the permanent magnet and the tubular object, and the elastic component biases the electromagnet towards the permanent magnet.
Preferably, the electromagnetic water treatment device further comprises a bushing which is arranged inside the outer shell and surrounds the tubular object, the electromagnet and the permanent magnet, and the bushing is made of a ferromagnetic material.
In the scheme, the bushing surrounding the electromagnet, the permanent magnet and the tubular object can realize a closed structure, so that the leakage of magnetic flux can be greatly reduced, and the optimal scale prevention effect can be realized on the premise of energy conservation and environmental protection.
Preferably, the electromagnetic water treatment device further comprises magnetic steel, and the magnetic steel is erected inside the tubular object.
In this scheme, set up the magnet steel in the inside of tubulose, the magnetic conduction is effectual, and magnetic field is comparatively even, and magnetic field distributes round the magnet steel, and the incrustation scale can partly adsorb on the inner wall of tubulose, and partly adsorbs on the magnet steel, and the two acts on simultaneously, and adsorption effect is better.
Preferably, the magnetic steel is a strip-shaped component arranged at the center of the tubular object.
Preferably, the bushing comprises an inwardly extending extension forming two oppositely facing recesses in which the permanent magnet and the electromagnet are located, the permanent magnet being fixed relative to the bushing, the electromagnet being movable within the recesses.
Preferably, the electromagnet comprises a coil and two limiting frames, the two limiting frames are respectively arranged in the two concave parts and can slide relative to the inner surfaces of the concave parts, and the coil is wound on the limiting frames.
Preferably, the cross section of the limiting frame is U-shaped.
Preferably, a sliding ball is arranged between the limiting frame and the concave part.
Preferably, the elastic member is a spring.
Preferably, the extension abuts against the tube.
In this case, the extension thus provided makes it possible to fix the tubular object with respect to the bush.
Preferably, the electromagnet comprises an iron core and a coil surrounding the iron core, the axis of the coil is perpendicular to the axis of the tubular object, and the iron core is fixedly connected with the bushing.
In this scheme, iron core and bush fixed connection to make things convenient for the fixed of electromagnet.
Preferably, the magnetic induction intensity of the electromagnetic field generated by the electromagnet and the permanent magnet is in the range of 2000 Gs-3000 Gs.
In the scheme, the magnetic induction intensity is controlled within the range of 2000 Gs-3000 Gs, so that the generation of scale can be accelerated, and the aim of purifying water quality is fulfilled.
Preferably, the electromagnetic water treatment device has a pair of the permanent magnets and a pair of the electromagnets respectively disposed on opposite sides of the tubular body.
In the scheme, the permanent magnet and the electromagnet which are arranged in pairs can enhance the stability of the magnetic field and the strength of the magnetic field.
Preferably, the electromagnet is adapted to have a direct current passing therethrough, and the direct current causes the polarity of the electromagnet to repel the polarity of the permanent magnet.
A water heater comprises the electromagnetic water treatment device, and the electromagnetic water treatment device is installed at the water inlet end of the water heater.
The positive progress effects of the invention are as follows: the electromagnetic water treatment device realizes the control of the electromagnetic field generated in the tubular object according to the water flow through the electric connection of the water flow detection unit and the electromagnet, thereby uniformly purifying the water quality. The water quality of the water heater provided with the electromagnetic water treatment device can be more uniform.
Drawings
Fig. 1 is a perspective view schematically illustrating an electromagnetic water treatment apparatus according to a preferred embodiment of the present invention.
Fig. 2 is a schematic cross-sectional structure view of an electromagnetic water treatment apparatus according to a preferred embodiment of the present invention.
Fig. 3 is a partial sectional structural view of an electromagnetic water treatment apparatus according to a preferred embodiment of the present invention.
Description of reference numerals:
electromagnetic water treatment apparatus 10
Limiting frame 42
Sliding ball 43
Bushing 80
Detailed Description
The present invention is further illustrated by way of example and not by way of limitation in the scope of the following examples in connection with the accompanying drawings.
As shown in fig. 1 to 3, the electromagnetic water treatment apparatus 10 includes: the water flow rate measuring device includes a housing 20, a water flow rate detecting unit (not shown), and a tube 30, an electromagnet 40, a permanent magnet 50, and an elastic member 60 provided inside the housing 20.
The water flow rate detecting unit is provided at the water inlet of the tube 30 and is electrically connected to the electromagnet 40.
An electromagnet 40 and a permanent magnet 50 are provided on the side of the tube 30, the electromagnet 40 is located between the permanent magnet 50 and the tube 30, and a resilient member 60 biases the electromagnet 40 towards the permanent magnet 50.
The electromagnetic water treatment apparatus 10 controls the electromagnetic field generated in the tubular object 30 according to the water flow rate by electrically connecting the water flow rate detection unit and the electromagnet 40, thereby uniformly purifying the water quality. For example, when the water flow rate detecting unit detects that the water flow rate in the tube 30 is large, the current to the electromagnet 40 may be controlled to be increased, the electromagnet 40 generates a large magnetic field, and the electromagnet 40 may move toward the tube 30 against the bias of the elastic member 60 due to the electromagnet 40 and the permanent magnet 50 repelling each other, thereby enhancing the magnetic field applied to the inside of the tube 30. When the water flow rate detecting unit detects that the water flow rate of the tube 30 is small, the current applied to the electromagnet 40 may be controlled to be reduced, the magnetic field generated by the electromagnet 40 is small, the repulsive force between the electromagnet 40 and the permanent magnet 50 is reduced, and the electromagnet 40 is moved toward the permanent magnet 50 by the biasing force of the elastic member 60, thereby reducing the magnetic field applied to the inside of the tube 30.
The electromagnet 40 is adapted to have a direct current passed through it and this direct current causes the polarity of the electromagnet 40 to repel the polarity of the permanent magnet 50.
In the present embodiment, the housing 20 is a hollow cylinder having a generally elliptical cross-sectional shape. However, the shape of the housing 20 is not limited thereto, and the shape of the housing 20 may be arbitrarily changed as needed. The material of the housing 20 is preferably a nonmagnetic material such as plastic. The housing 20 is closed at both ends, leaving only a through hole for insertion of the tube 30. The outer circumferential surface of the housing 20 is provided with a plurality of heat radiating holes 21. Since the electromagnet easily generates heat, the heat dissipation hole 21 can prevent the inside of the device from being overheated.
The tube 30 is used for the flow of fluid such as water, and the shape of the tube 30 is preferably circular, but may be other shapes as necessary. The material of the tube 30 may be plastic or the like. The inner wall of the tube 30 is non-specular and preferably rough to allow for the adsorption of scale.
The permanent magnet 50 may be a natural magnet (magnetite), an artificial magnet (alnico), or the like.
In the present embodiment, the electromagnetic water treatment apparatus 10 has a pair of permanent magnets 50 and a pair of electromagnets 40 respectively disposed on opposite sides of the tubular object 30. The permanent magnets 50 and electromagnets 40 arranged in pairs may enhance magnetic field stability and magnetic field strength. Of course, the permanent magnet 50 and the electromagnet 40 may be provided only on one side of the tube 30, and the tube 30 may be provided with a magnetic field.
The electromagnetic water treatment device 10 further includes a bushing 80, the bushing 80 being provided inside the housing 20 and surrounding the tubular object 30, the electromagnet 40 and the permanent magnet 50, the bushing 80 being made of a ferromagnetic material. The arrangement of the bushing 80 surrounding the electromagnet 40, the permanent magnet 50 and the tubular object 30 can realize a closed structure, greatly reduce the leakage of magnetic flux, and realize the best anti-scaling effect on the premise of energy conservation and environmental protection.
The electromagnetic water treatment device 10 further comprises magnetic steel, and the magnetic steel is erected inside the tubular object 30. Set up the magnet steel in the inside of tubulose 30, the magnetic conduction is effectual, and magnetic field is comparatively even, and magnetic field distributes round the magnet steel, and the incrustation scale can partly adsorb on the inner wall of tubulose 30, and partly adsorbs on the magnet steel, and the two acts on simultaneously, and adsorption effect is better.
The magnetic steel is a bar-shaped member arranged at the center of the tubular object 30. The bar-shaped member is erected inside the tube 30 by a bracket 70. In the present embodiment, only one example of the bracket 70 is provided, and one skilled in the art may select any one of the forms of the bracket 70 as needed.
In this embodiment, the bushing 80 comprises an inwardly extending extension 90, the extension 90 forming two recesses facing opposite directions, the permanent magnet 50 and the electromagnet 40 being arranged in the recesses, the permanent magnet 50 being fixed with respect to the bushing 80, and the electromagnet 40 being movable in the recesses.
The electromagnet 40 includes a coil 41 and two position-limiting brackets 42, the two position-limiting brackets 42 are respectively disposed in the two recessed portions and are slidable with respect to the inner surfaces of the recessed portions, and the coil 41 is wound around the position-limiting brackets 42. The cross section of the stopper 42 is U-shaped. A sliding ball 43 is provided between the stopper 42 and the recess so that the electromagnet 40 moves by the repulsive force. When the extension is of ferromagnetic material, the portion of the extension surrounded by the coil 41 also acts as the iron core of the electromagnet 40. The extension abuts against the tube 30. The extension so provided may secure the tubular 30 relative to the bushing 80. The elastic member 60 is a spring.
The bushing 80 and extension are preferably integrally formed. The material of both is preferably silicon steel. The silicon steel is beneficial to improving the resistivity and the maximum magnetic conductivity and reducing the coercive force, the iron core loss and the magnetic aging.
In another embodiment, the electromagnet comprises a core and a coil surrounding the core, the coil surrounding an axis perpendicular to the axis of the tube, the core being fixedly connected to the bushing. The iron core is fixedly connected with the bushing, so that the electromagnet is convenient to fix. The material of the iron core is preferably silicon steel.
The magnetic induction of the electromagnetic field generated by the electromagnet 40 and the permanent magnet 50 is preferably in the range of 2000Gs to 3000 Gs. The magnetic induction intensity is controlled within the range of 2000 Gs-3000 Gs, the generation of scale can be accelerated (see the research on scale prevention and scale inhibition of water magnetization treatment), so that the scale is generated in the device in advance and is attached to the pipe wall of the tubular object 30 and the magnetic steel of the device, and the aim of purifying water quality is fulfilled.
The electromagnetic water treatment device 10 can be applied to a water heater, the water heater comprises the electromagnetic water treatment device 10, and the electromagnetic water treatment device 10 is installed at the water inlet end of the water heater. The water flow passes through the electromagnetic water treatment device 10 before entering the water heater, so that impurities in the water flow are separated out under the action of the magnetic field and are adsorbed on the inner wall of the tubular object 30 and the magnetic steel, and the water entering the water heater is purified in advance.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention unless otherwise specified herein.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (15)
1. An electromagnetic water treatment apparatus, comprising: the water flow detection device comprises a shell, a water flow detection unit, a tubular object, an electromagnet, a permanent magnet and an elastic component, wherein the tubular object, the electromagnet, the permanent magnet and the elastic component are arranged in the shell;
the water flow detection unit is arranged at the water inlet of the tubular object and is electrically connected to the electromagnet;
the electromagnet and the permanent magnet are arranged on the side edge of the tubular object, the electromagnet is positioned between the permanent magnet and the tubular object, and the elastic component biases the electromagnet towards the permanent magnet.
2. The electromagnetic water treatment device of claim 1, further comprising a bushing disposed inside the housing and surrounding the tube, the electromagnet, and the permanent magnet, the bushing being constructed of a ferromagnetic material.
3. The electromagnetic water treatment device according to claim 1, further comprising magnetic steel mounted inside said tube.
4. The electromagnetic water treatment device according to claim 3, wherein said magnetic steel is a bar-shaped member provided at the center of said tubular object.
5. The electromagnetic water treatment device of claim 2, wherein said bushing includes inwardly extending extensions forming oppositely facing recesses in which said permanent magnet and electromagnet are located, said permanent magnet being fixed relative to said bushing, said electromagnet being movable within said recesses.
6. The electromagnetic water treatment device according to claim 5, wherein said electromagnet includes a coil and two retaining brackets, said two retaining brackets being respectively disposed in said two recesses and slidable relative to inner surfaces of said recesses, said coil being wound around said retaining brackets.
7. The electromagnetic water treatment device according to claim 6, wherein the cross-section of said limiting frame is U-shaped.
8. The electromagnetic water treatment device according to claim 6, wherein a sliding ball is provided between said stopper and said recess.
9. The electromagnetic water treatment apparatus of claim 1, wherein said elastic member is a spring.
10. The electromagnetic water treatment apparatus of claim 5, wherein said extension abuts said tube.
11. The electromagnetic water treatment device according to claim 2, wherein said electromagnet comprises an iron core and a coil surrounding said iron core, said coil surrounding an axis perpendicular to an axis of said tubular member, said iron core being fixedly connected to said bushing.
12. The electromagnetic water treatment apparatus according to claim 1, wherein the magnetic induction of the electromagnetic field generated by said electromagnet and permanent magnet is in the range of 2000Gs to 3000 Gs.
13. The electromagnetic water treatment device according to claim 1, wherein said electromagnetic water treatment device has a pair of said permanent magnets and a pair of said electromagnets respectively disposed on opposite sides of said tubular body.
14. The electromagnetic water treatment device of claim 1, wherein said electromagnet is adapted to have direct current passed therethrough, and wherein the direct current causes the polarity of said electromagnet to repel the polarity of said permanent magnet.
15. A water heater comprising an electromagnetic water treatment device as claimed in any one of claims 1 to 14 mounted to the water inlet end of the water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020177.0A CN111422957B (en) | 2019-01-09 | 2019-01-09 | Electromagnetic water treatment device and water heater comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020177.0A CN111422957B (en) | 2019-01-09 | 2019-01-09 | Electromagnetic water treatment device and water heater comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111422957A true CN111422957A (en) | 2020-07-17 |
| CN111422957B CN111422957B (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910020177.0A Active CN111422957B (en) | 2019-01-09 | 2019-01-09 | Electromagnetic water treatment device and water heater comprising same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070029261A1 (en) * | 2005-08-02 | 2007-02-08 | Chew Hwee H | Method and device for water treatement using an electromagnetic field |
| CN204361871U (en) * | 2015-02-25 | 2015-05-27 | 黑龙江广合节能环保科技有限公司 | A kind of generator that can regulate magnetic field distance voluntarily |
| CN106430637A (en) * | 2016-11-30 | 2017-02-22 | 田润泽 | Intelligent electromagnetic scale removing system capable of being used for water heater |
| CN108012359A (en) * | 2017-06-20 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of water magnetizing device and water heater |
-
2019
- 2019-01-09 CN CN201910020177.0A patent/CN111422957B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070029261A1 (en) * | 2005-08-02 | 2007-02-08 | Chew Hwee H | Method and device for water treatement using an electromagnetic field |
| CN204361871U (en) * | 2015-02-25 | 2015-05-27 | 黑龙江广合节能环保科技有限公司 | A kind of generator that can regulate magnetic field distance voluntarily |
| CN106430637A (en) * | 2016-11-30 | 2017-02-22 | 田润泽 | Intelligent electromagnetic scale removing system capable of being used for water heater |
| CN108012359A (en) * | 2017-06-20 | 2018-05-08 | 宁波方太厨具有限公司 | A kind of water magnetizing device and water heater |
Non-Patent Citations (2)
| Title |
|---|
| 李先瑞: "《供热空调系统运行管理、节能、诊断技术指南》", 31 January 2004, 中国电力出版社 * |
| 金国砥: "《维修电工入门》", 31 October 1999, 浙江科学技术出版社 * |
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| CN111422957B (en) | 2021-08-20 |
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