CN209819517U - Filter inductor applied to electromagnetic induction electric boiler and electromagnetic induction electric boiler based on filter inductor - Google Patents
Filter inductor applied to electromagnetic induction electric boiler and electromagnetic induction electric boiler based on filter inductor Download PDFInfo
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- CN209819517U CN209819517U CN201920516844.XU CN201920516844U CN209819517U CN 209819517 U CN209819517 U CN 209819517U CN 201920516844 U CN201920516844 U CN 201920516844U CN 209819517 U CN209819517 U CN 209819517U
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Abstract
The utility model discloses a be applied to filter inductance of electromagnetic induction electric boiler, including the filter inductance who is used for filtering out higher harmonic, still including being used for the heat exchanger that links to each other with the boiler, the heat that filter inductance work gived off passes through the heat exchanger shifts to the boiler. And an electromagnetic induction electric boiler based on the filter inductor. The utility model aims to provide a: the technical scheme aims at solving the problems of electric energy loss, harmful heating and high heat dissipation cost in the technical scheme of applying the inductance components to filter out higher harmonics in the electromagnetic induction boiler, and provides a filtering inductance component scheme applied to the electromagnetic induction boiler and an electromagnetic induction boiler scheme based on the filtering inductance components. The scheme collects and reuses the heat dissipated by electric energy dissipation, and overcomes the related technical barriers in the industrial application process of the electromagnetic induction electric boiler.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetic induction formula electricity boiler is relevant. Particularly, the utility model relates to a be applied to electromagnetic induction electric boiler's filter inductance components and parts to and electromagnetic induction electric boiler based on this filter inductance components and parts.
Background
Environmental protection has become one of the primary concerns in industrial development, and conventional boilers using fossil energy are increasingly being restricted or prohibited from use. The electric energy is used as clean energy and has environmental protection characteristic incomparable with fossil energy. Therefore, the electric boiler can be operated. An electric boiler, also called an electric boiler or an electric heating boiler, is a boiler device which uses electric power as energy and converts the energy into heat energy, and then the heat energy is converted by a boiler so as to output steam, high-temperature water or an organic heat carrier with certain heat energy outwards.
The electric boiler mainly has three energy conversion modes to realize heating: electrode type, resistance type, electromagnetic induction type. The chemical properties of oxygen and hydrogen generated by the electrode type electric boiler are extremely active, and potential safety hazards are caused. The resistance type electric boiler is limited by the service life of the electric heating wire, and the economic value is not high.
For an electromagnetic induction type electric boiler, in an industrial-grade high-power rectification inverter system of the electromagnetic induction type electric boiler, higher harmonics are generated, the higher harmonics can cause great pollution to a power grid, overcurrent and overvoltage can be caused to a power supply system in serious cases, electric appliances in the same power supply network are damaged, and a transformer and power distribution components thereof are damaged due to overheating or malfunction to cut off a power supply.
The technical route for filtering out higher harmonics then arises, and an inductor is one of the filter devices that is easy to think and can be applied more directly. Higher harmonics are filtered out, and harm of the higher harmonics can be avoided. However, the insertion of inductive components causes considerable power losses, the consumed power being converted primarily in a heat-generating manner into the actual heat generation of the inductive components, resulting in a harmful temperature rise. As an inductor, heat is generated in a conventional application circuit, and heat dissipation is most needed after the heat is generated. Conventional heat dissipation devices such as air cooling and water cooling are needed to achieve the purpose of cooling, and heat is taken away as soon as possible without damaging the inductance components due to the fact that the inductance components reach a high-temperature state.
Therefore, in the industrial application process of the electromagnetic induction electric boiler, electric energy loss, harmful heating and high heat dissipation cost exist, and the technical barriers are still overcome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the technical scheme aims at solving the problems of electric energy loss, harmful heating and high heat dissipation cost in the technical scheme of applying the inductance components to filter out higher harmonics in the electromagnetic induction boiler, and provides a filtering inductance component scheme applied to the electromagnetic induction boiler and an electromagnetic induction boiler scheme based on the filtering inductance components. The scheme collects and reuses the heat dissipated by electric energy dissipation, and overcomes the related technical barriers in the industrial application process of the electromagnetic induction electric boiler.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a be applied to electromagnetic induction electric boiler's filter inductance, is including the filter inductance who is used for filtering out higher harmonic, still including being used for the heat exchanger that links to each other with the boiler, the heat that filter inductance work gived off passes through the heat exchanger shifts to the boiler. In the electric boiler system, the electric energy of loss of the inductance component is converted into heat energy, and the heat energy just can heat the boiler in a heat exchange mode, so that efficient heat utilization is realized, and the heat efficiency is improved.
As a preferable scheme, the heat conduction box further comprises a heat conduction box body, cooling liquid is injected into a space surrounded by the heat conduction box body, the filter inductor is immersed in the cooling liquid, a leading-out wire of the filter inductor is led out of the heat conduction box body through the side wall of the heat conduction box body and is used for being connected to an electric boiler circuit system, and the heat exchanger is arranged inside the side wall of the heat conduction box body or in the cooling liquid. This scheme exchanges the heat that gives off of inductor components and parts's reactor self work through the coolant liquid to transfer to the electric boiler system of being heated and carry out recycle.
As the preferred scheme, a liquid level meter window is arranged on the side wall of the heat conduction box body. The liquid level meter window enables a worker to observe the actual position of the cooling liquid in the heat conduction box body, the cooling liquid amount is guaranteed to be sufficient, and heat emitted by the inductor can be effectively transmitted out.
Preferably, a heat insulation layer is arranged outside the heat conduction box body. The purpose of the insulating layer is to allow the medium flowing through the heat exchanger to carry away the heat of the whole inductor without losing the heat in the air. The heat preservation layer is added on the premise of ensuring that the heat energy is recovered with high efficiency.
Preferably, the heat conducting box body consists of a box body with an open top and a box cover body for closing the open top of the box body. The box cover body is used for sealing the cooling liquid.
Preferably, the heat exchanger is a water coil. The water coil pipe has a complex bending structure of a long-path water flow channel, and can ensure the high efficiency and the balance of the heat exchange effect.
Preferably, only one cooling liquid with the same specification is used as the cooling liquid. The cooling liquid which meets the standard specification has a promoting effect on the heat conduction efficiency.
Preferably, the cooling liquid is a volatilization-resistant cooling liquid. Avoid the coolant liquid to volatilize because of high temperature, lead to the liquid level to descend, reduce heat conduction efficiency.
Preferably, the cooling liquid is composed of water in a lower layer and oil in an upper layer, and the filter inductor is immersed in the water. This scheme provides an emergent scheme, when the coolant liquid in the heat conduction box takes place to leak promptly, will the coolant liquid is replaced by water and the oil that easily acquires.
The electromagnetic induction electric boiler based on the filter inductor comprises a circuit breaker, the filter inductor, a rectification module, an inversion module and a load coil, wherein the load coil is electrically connected with the inversion module, the inversion module is electrically connected with the rectification module, the rectification module is electrically connected with the filter inductor, the filter inductor is electrically connected with the circuit breaker, and the circuit breaker is connected with a power supply. After the filter inductance unit is inserted between the circuit breaker and the rectifying module, harmonic current is suppressed, so that the industrial application of the electromagnetic induction electric boiler is realized.
To sum up, owing to adopted above-mentioned technical scheme, compare in prior art, the beneficial effects of the utility model are that: in the electric boiler system, the electric energy of loss of the inductance component is converted into heat energy, and the heat energy just can heat the boiler in a heat exchange mode, so that efficient heat utilization is realized, and the heat efficiency is improved. Furthermore, the utility model discloses after having inserted above-mentioned filter inductance unit between circuit breaker and rectifier module, harmonic current will be suppressed to realize the industrial application of electromagnetic induction electric boiler. The utility model discloses a heat that dissipates the electric energy and give off is collected and reuse, has overcome the relevant technical barrier in the electromagnetic induction electric boiler industry application process.
Drawings
FIG. 1 is a schematic structural view of examples 1 to 2.
FIG. 2 is a schematic structural view of example 3.
FIG. 3 is a schematic diagram of a conventional circuit before modification in example 4.
FIG. 4 is a schematic circuit diagram of a modified example 4.
Reference numbers for parts in the drawings: 1-filter inductor, 11-magnetic core, 12-coil, 13-outgoing line, 14-bracket, 2-heat exchanger, 3-heat conduction box body, 31-box body, 32-box cover body, 4-cooling liquid, 41-water, 42-oil, 5-liquid level meter window, 6-heat insulation layer, a-power supply, b-circuit breaker, c-rectifier module, d-inverter module and e-load coil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
The embodiment discloses a filter inductor applied to an electromagnetic induction electric boiler, which comprises a filter inductor for filtering out higher harmonics as shown in fig. 1, wherein the filter inductor mainly comprises a magnetic core, a coil, an outgoing line and a bracket. On the basis of the filter inductor, the heat exchanger connected with the boiler is combined, and heat dissipated by the filter inductor is transferred to the boiler through the heat exchanger. In the electric boiler system, the electric energy of loss of the inductance component is converted into heat energy, and the heat energy just can heat the boiler in a heat exchange mode, so that efficient heat utilization is realized, and the heat efficiency is improved.
This embodiment is specifically implemented based on a thermally conductive case. As shown in fig. 1, the heat conducting box body is composed of a box body with an open top and a box cover body for closing the open top of the box body. The heat conducting box body is made of a material with good heat conducting performance, and aluminum or copper and epoxy resin materials can be selected preferentially.
As shown in fig. 1, a cooling liquid is injected into a space surrounded by the heat conduction box body, the box cover body is used for hermetically containing the cooling liquid, the filter inductor is immersed in the cooling liquid, an outgoing line of the filter inductor is led out of the heat conduction box body through the box cover body of the heat conduction box body and is used for being connected to an electric boiler circuit system, the heat exchanger is arranged inside a side wall of the heat conduction box body or in the cooling liquid, and in this embodiment, the heat exchanger is preferably arranged in the heat conduction box body. The heat exchanger is embedded in the heat conduction box body to exchange heat dissipated by the work of the reactor of the inductance component.
Example 2
Based on embodiment 1, this embodiment has made a corresponding optimization design, see fig. 1.
And a liquid level meter window is arranged on the side wall of the box body of the heat conduction box body. The liquid level meter window enables a worker to observe the actual position of the cooling liquid in the heat conduction box body, the cooling liquid amount is guaranteed to be sufficient, and heat emitted by the inductor can be effectively transmitted out.
The heat-conducting box body is externally provided with a heat-insulating layer, and the heat-insulating layer consists of two parts matched with the box body and the box cover body. The heat preservation layer is added on the premise of ensuring that heat energy is recovered efficiently, and other application scenes of the inductance component do not adopt heat preservation measures or do not need to adopt corresponding structures. The purpose of the insulating layer is to allow the medium flowing through the heat exchanger to carry away the heat of the whole inductor without losing the heat in the air. Therefore, the insulation design here is important. In addition, the structure of the heat insulation layer is not limited to the plane structure type in fig. 1, and can be realized in various ways, and the heat insulation material can also be various, most preferably polyurethane foam heat insulation material, and can also be more efficient heat insulation material such as aerogel.
The heat exchanger is a water coil. The water coil pipe is embedded into the heat conduction box body, and the water medium in the water coil pipe and the water medium in the boiler are mutually circulated so as to continuously exchange the self heating of the reactor of the inductance component. The heat exchanger is not necessarily straight, and a complex bent structure with a long-path water flow channel is most preferable to ensure the high efficiency and the balance of the heat exchange effect.
The conventional cooling method is to use only one cooling liquid with the same specification. And the cooling liquid is an anti-volatilization type cooling liquid. The selection of the cooling liquid is required to meet the boiling point and other specification requirements.
Example 3
This example provides an emergency solution compared to the coolant of example 2. When the cooling liquid in the heat conduction box body leaks, the cooling liquid is replaced by water and oil which are easy to obtain in the embodiment. Specifically, as shown in fig. 2, the filter inductor is composed of water in the lower layer and oil in the upper layer instead of the coolant in embodiment 2, and is immersed in water.
The water and the oil are both configured in a heat conduction cycle mode, the water and the oil are two liquid substances which are mutually immiscible, the water is used as a good heat conductor, and the oil is used for sealing the water so that the water is not volatilized. The water is preferably purified water, and the oil is preferably lubricating oil, and is not limited to purified water and lubricating oil, particularly based on actual storage in a factory.
Example 4
As described in the background art, the electromagnetic induction type electric boiler is often accompanied by the generation of higher harmonics in its industrial-grade high-power rectification inverter system. As shown in fig. 3, the conventional circuit without using an inductor before modification, the internal circulating current formed by the high frequency harmonic current causes the circuit breaker to heat up, causing the circuit breaker to trip. The main forming reasons are as follows: rectifier diode all has recovery time, because inverter circuit has produced the electric current of high frequency, the stack is on the power frequency electric current, probably form similar high frequency short-circuit current in the circuit of twin cell (or multiunit) structure, to the drive unit of modular framework, interconnecting link between its multiunit is the copper bar, and length is shorter, the impedance is extremely low, very little voltage difference just can produce great electric current, this electric current can pass through rectifier bridge and circuit breaker, form great heat, cause the circuit breaker to trip because of overheated. The current between the modules does not flow into the secondary side of the transformer, and therefore, the overheating of the transformer is not caused.
After the inductive unit is inserted between the circuit breaker and the rectifying unit, its high frequency harmonic currents will be suppressed, because the inductance is large for high frequency currents: z ═ 2 pi fL. In this embodiment, the filter inductor according to any one of embodiments 1 to 3 is inserted into an existing electromagnetic induction electric boiler system. The modified circuit is shown in fig. 4, which shows the position of the inductor in the circuit. The electromagnetic induction electric boiler of this embodiment includes circuit breaker, filter inductance, rectifier module, contravariant module and load coil, and load coil is connected with the contravariant module electricity, and the contravariant module is connected with rectifier module electricity, and rectifier module is connected with filter inductance electricity, and filter inductance is connected with the circuit breaker electricity, and the circuit breaker inserts power supply.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a be applied to electromagnetic induction electric boiler's filter inductance, includes the filter inductance who is used for filtering out higher harmonic, its characterized in that: the filter inductor is characterized by further comprising a heat exchanger connected with the boiler, and heat dissipated by the filter inductor during operation is transferred to the boiler through the heat exchanger.
2. The filter inductor applied to the electromagnetic induction electric boiler according to claim 1, wherein: the filter inductor is characterized by further comprising a heat conduction box body, cooling liquid is injected into a space surrounded by the heat conduction box body, the filter inductor is immersed in the cooling liquid, an outgoing line of the filter inductor is led out of the heat conduction box body through the side wall of the heat conduction box body and used for being connected into an electric boiler circuit system, and the heat exchanger is arranged inside the side wall of the heat conduction box body or in the cooling liquid.
3. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: and a liquid level meter window is arranged on the side wall of the heat conduction box body.
4. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: and a heat insulation layer is arranged outside the heat conduction box body.
5. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: the heat conduction box body consists of a box body with an open top and a box cover body used for sealing the open top of the box body.
6. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: the heat exchanger is a water coil.
7. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: the cooling liquid only adopts one cooling liquid with the same specification.
8. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 7, wherein: the cooling liquid is anti-volatilization type cooling liquid.
9. The filter inductor applied to the electromagnetic induction electric boiler, according to claim 2, wherein: the cooling liquid consists of water on the lower layer and oil on the upper layer, and the filter inductor is immersed in the water.
10. Electromagnetic induction electric boiler based on a filter inductance according to any of the claims 1-9, characterized in that: the power supply comprises a circuit breaker, a filter inductor, a rectifying module, an inversion module and a load coil, wherein the load coil is electrically connected with the inversion module, the inversion module is electrically connected with the rectifying module, the rectifying module is electrically connected with the filter inductor, the filter inductor is electrically connected with the circuit breaker, and the circuit breaker is connected with a power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516844.XU CN209819517U (en) | 2019-04-16 | 2019-04-16 | Filter inductor applied to electromagnetic induction electric boiler and electromagnetic induction electric boiler based on filter inductor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920516844.XU CN209819517U (en) | 2019-04-16 | 2019-04-16 | Filter inductor applied to electromagnetic induction electric boiler and electromagnetic induction electric boiler based on filter inductor |
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| CN209819517U true CN209819517U (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945157A (en) * | 2019-04-16 | 2019-06-28 | 成都市新明节能科技有限公司 | A kind of filter inductance applied to electromagnetic induction electric boiler, the electromagnetic induction electric boiler based on the filter inductance |
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2019
- 2019-04-16 CN CN201920516844.XU patent/CN209819517U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945157A (en) * | 2019-04-16 | 2019-06-28 | 成都市新明节能科技有限公司 | A kind of filter inductance applied to electromagnetic induction electric boiler, the electromagnetic induction electric boiler based on the filter inductance |
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