Pipeline descaling device and method

Abstract

The invention relates to a pipeline descaling device and method, and belongs to the technical field of pipeline cleaning. The device comprises a microprocessor, a switch element, an inductance coil, a magnetic ring and a capacitor element, the output end of the microprocessor is connected with the switch element; the inductance coil is wound on the magnetic ring, and a to-be-treated pipeline penetrates through the magnetic ring; the inductance coil is connected in series with the switch element and then connected in parallel with the capacitor element; the capacitor element uses a polar capacitor and communicates with the power supply circuit. A second-order RLC series zero-input response circuit is formed by an inductance coil, a switch element, a capacitor element and a resistor of the inductance coil, sine attenuation oscillation signals are generated by the RLC series circuit in an under-damping working state, and high-frequency pulse signals are generated through a microprocessor. Oscillation signals generated by the RLC series circuit are modulated to high-frequency pulse signals, high-frequency damped oscillation current signals with mixed frequency alternating are generated and jointly act on the pipeline, and scale in the pipeline is effectively removed.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline cleaning, and relates to a pipeline descaling device and method. Background Art

[0002] During the long-term use of hot water pipes, scale will form on the inner surface of the pipes. Scale will lead to a decrease in thermal efficiency and an increase in energy consumption. In severe cases, it will block the pipes and even cause boiler explosions. At present, chemical or physical methods are mainly used to descale pipes. The chemical method is to add chemical descaling agents into the pipes to react with the scale in the pipes, and then rinse with water; the physical method generally uses a machine to extend into the pipes for stirring to remove the scale in the pipe walls. However, both methods require opening the pipes, which are cumbersome to operate and are generally used for regular cleaning when a large amount of scale is generated in the pipes. Some people have also proposed to use high-frequency current to descale the pipes, that is, by installing electromagnetic coils on the surface of the pipes, variable currents are generated at a fixed frequency to remove scale, but the existing electromagnetic descaling methods all generate alternating oscillation signals with constant amplitudes, which are difficult to generate continuous attenuated pulse sinusoidal oscillation waves, and the noise is large, and the descaling effect needs to be further improved. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a pipeline descaling device and method, which can effectively remove scale in the pipeline by applying a high-frequency attenuated oscillating current signal with a mixed frequency alternation to the pipeline.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] In one aspect, the present invention provides a pipeline descaling device, comprising: a microprocessor, a switch element, an inductor coil, a magnetic ring, and a capacitor element;

[0006] The output terminal of the microprocessor is connected to the switch element;

[0007] The inductive coil is wound around the magnetic ring, and the pipe to be processed passes through the magnetic ring;

[0008] The inductor is connected in series with the switch element and then connected in parallel with the capacitor element;

[0009] The capacitive element is a polarized capacitor and is connected to a power circuit.

[0010] Furthermore, the inductor coil is composed of one or more groups of multi-core cables.

[0011] Furthermore, the magnetic ring is a detachable ferrite magnetic ring.

[0012] Furthermore, the switch element is a field effect transistor or a triode.

[0013] Furthermore, the microprocessor adopts an STM32 microprocessor.

[0014] Furthermore, a power step-down module is connected between the power interface of the microprocessor and the power circuit; the power step-down module includes one or more step-down converters.

[0015] Furthermore, it also includes a current limiting module and a reverse protection module connected in series with the inductor coil and the capacitor element;

[0016] Among them, the current limiting module adopts a resistor with a power range of 1W to 2W, and the reverse protection module adopts a rectifier diode.

[0017] Furthermore, a protection module is connected between the pipeline descaling device and the power supply circuit to protect the power supply circuit when a short circuit occurs in the pipeline descaling device;

[0018] The protection module includes a fast recovery fuse.

[0019] Furthermore, it also includes a work indication module connected to the microprocessor;

[0020] The work indication module includes a plurality of groups of light emitting diodes and current limiting resistors connected in series;

[0021] The microprocessor is configured to control the light emitting state of the light emitting diode.

[0022] On the other hand, the present invention also provides a pipeline descaling method, comprising:

[0023] Connecting the pipeline descaling device to a power source;

[0024] The frequency generated by the microprocessor is A high-frequency pulse signal drives the switch element to turn on;

[0025] The inductor, the switch element, the capacitor element and the resistance of the inductor constitute a second-order RLC series zero-input response circuit, the second-order RLC series zero-input response circuit is in an underdamped oscillation state, and the oscillation waveform envelope decays exponentially;

[0026] The second-order RLC series zero-input response circuit generates a frequency of The decaying oscillation signal;

[0027] The damped oscillation signal modulated into the high frequency pulse signal On, the mixed frequency Alternating high-frequency decaying oscillating current signal;

[0028] The mixing frequency The alternating high-frequency attenuated oscillating current signal is amplified and applied to the pipe to be treated in the magnetic ring to remove scale on the inner surface of the pipe.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention proposes a pipeline descaling device, which forms a second-order RLC series zero-input response circuit through an inductor, a switch element, a capacitor element and the resistance of the inductor, and uses the RLC series circuit to generate a sinusoidal oscillation signal that decays according to the exponential law in an underdamped working state, and amplifies the decayed oscillation signal by winding the inductor around a magnetic ring and passing the pipeline through the magnetic ring, and the amplified decayed oscillation signal acts on the inner surface of the pipeline, effectively removing scale on the inner surface of the pipeline. At the same time, a high-frequency pulse signal is generated by a microprocessor, and the oscillation signal generated by the RLC series circuit is modulated onto the high-frequency pulse signal, generating a mixed frequency alternating high-frequency oscillation current signal that decays according to the exponential law and acts on the pipeline together, further improving the descaling effect. In addition, the pipeline descaling device of the present invention has the functions of preventing corrosion of metal water pipes and disinfecting bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of a pipeline descaling device provided in an embodiment of the present invention;

[0032] Figure 2 Schematic diagram of the structure of a square open magnetic ring in an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure in which the inductor coil is wound around the magnetic ring in an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of a pipeline descaling method provided by an embodiment of the present invention;

[0035] Among them, 1-pipe, 2-square open magnetic ring, 3-inductor coil. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. The embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0037] The term "and / or" herein is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the front and back associated objects are in an "or" relationship. The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure / application.

[0038] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0040] Embodiment 1:

[0041] like Figure 1 As shown, an embodiment of the present invention provides a pipeline descaling device, the device comprising: a microprocessor, a switch element, an inductor 3, a magnetic ring and a capacitor element;

[0042] The output terminal of the microprocessor is connected to the switch element;

[0043] The inductive coil 3 is wound around the magnetic ring, and the pipe 1 to be processed passes through the magnetic ring;

[0044] The inductor 3 is connected in series with the switch element and then connected in parallel with the capacitor element;

[0045] The capacitive element is a polarized capacitor and is connected to a power circuit.

[0046] The magnetic ring is a detachable ferrite magnetic ring, and the shape and size of the magnetic ring are determined according to the diameter of the pipeline 1 to be processed, so as to ensure that the pipeline 1 can be accommodated.

[0047] like Figure 2 As shown, the magnetic ring used in this embodiment is formed by splicing two square open magnetic rings 2.

[0048] like Figure 3 As shown, when the pipeline descaling device of the present invention is used, the inductor 3 is wound around one of the square open magnetic rings 2, and then the two square open magnetic rings 2 are spliced ​​together around the outer circumference of the pipeline 1, so that the pipeline 1 can be descaled without moving the pipeline 1.

[0049] In the embodiment of the present invention, the inductor coil 3 is composed of one or more groups of multi-core cables, which are wound on a magnetic ring to form an inductance L. The multi-core cables themselves have an internal resistance R.

[0050] The inductor 3 is wound around the magnetic ring for several or dozens of turns and connected to the power supply circuit, so the inductor 3 serves as the primary side; the pipe 1 passes through the magnetic ring, and the water in the pipe 1 has conductivity, which is equivalent to one turn of winding, so the water in the pipe 1 serves as the secondary side. Such a combination can amplify the sinusoidal decay oscillation signal generated by the RLC series circuit of the present invention in the underdamped working state, and apply the amplified alternating current signal to the water in the pipe 1, and effectively remove the scale on the inner surface of the pipe 1 according to the skin effect of the current (the skin effect refers to the uneven distribution of the current inside the conductor when the alternating current passes through the conductor, and is mainly concentrated on the surface of the conductor).

[0051] Because the water in the pipe 1 is conductive, the pipe descaling device of the present invention has no requirements on the material of the pipe 1 and can be applied to metal pipes or non-metal pipes. However, if applied to metal pipes, the pipe descaling device of the present invention also has the functions of preventing corrosion of metal water pipes and disinfecting bacteria.

[0052] The switch element may be a field effect tube or a triode, and the microprocessor controls the on and off of the switch element to control the on and off between the power supply and the inductor 3, so that the inductor 3 obtains a high-frequency oscillation signal.

[0053] In the embodiment of the present invention, the microprocessor adopts an STM32 microprocessor chip.

[0054] A power step-down module is connected between the power interface of the microprocessor and the power circuit to reduce the power voltage to the working voltage of the microprocessor.

[0055] The power supply voltage reduction module may use one or more buck converters. In the embodiment of the present invention, two buck converters are used to perform two-stage voltage reduction on the power supply voltage, namely, a 12 / 24VDC to 5VDC power supply module and a 5VDC to 3.3VDC power supply module. The two-stage voltage reduction can reduce energy loss to a certain extent.

[0056] The pipeline descaling device of the present invention further comprises a current limiting module and a reverse protection module which are connected in series with the inductor 3 .

[0057] The current limiting module may use a resistor with a power of 1W to 2W. The resistance of the resistor used in the current limiting module should not be too large. If the resistance is too large, the capacitor element will require a long charging time at the initial moment.

[0058] The reverse protection module adopts a rectifier diode. Based on the unidirectional conductivity of the diode and the polar capacitor element, when the switch element is closed, the circuit of the inductor 3 is turned on, and the electric energy stored in the capacitor element is discharged to the inductor 3, the current can flow unidirectionally to the inductor 3, so that the capacitor element, the inductor 3 and the resistance of the inductor 3 form a second-order RLC series oscillation circuit.

[0059] The pipeline descaling device of the present invention further comprises a work indication module connected to the microprocessor, and the work indication module is composed of 4 groups of light emitting diodes and current limiting resistors connected in series.

[0060] The microprocessor is configured to control the light-emitting state of the LEDs to indicate the working state of the pipeline descaling device. For example, if the four LEDs light up in turn, it indicates that the pipeline descaling device is working properly, and if the LEDs do not light up, it indicates that there is a fault in the pipeline descaling device.

[0061] In addition, the present invention provides a protection module between the pipeline descaling device and the power supply circuit, and the protection module can protect the power supply circuit when a short circuit occurs in the pipeline descaling device.

[0062] In the embodiment of the present invention, the protection module uses a fast recovery fuse.

[0063] When the pipeline descaling device is working, the microprocessor generates a frequency of Square wave pulse signal drives the switch element to work, the frequency The range is 10KHz to 100KHz. At this time, the power supply charges the capacitor element after passing through the protection module, the current limiting module and the reverse protection module, so that the capacitor element has an initial value.

[0064] The inductor 3, the switch element, the capacitor element and the resistance of the inductor 3 form a second-order RLC series zero-input response circuit. In fact, the resistance R of the inductor 3 is very small. , so the RLC series zero input response circuit is in an underdamped state. At this time, the current in the inductor 3 (primary side) changes according to the oscillating discharge process, and the oscillation frequency The oscillation angular frequency is related to the resistance R of the inductor 3, the inductance L of the inductor 3 and the capacitance C of the capacitor element. and oscillation frequency The calculation formula is:

[0065] ,

[0066] .

[0067] On the secondary side, that is, the surface of the water in the pipe 1 generates an alternating current signal which acts on the inner surface of the pipe, thereby effectively removing scale.

[0068] At the same time, the microprocessor generates a frequency of The high-frequency pulse signal is applied to the RLC series circuit composed of the inductor 3 and the capacitor through the switch element, and the oscillation signal generated by the RLC series circuit is modulated to the high-frequency pulse signal generated by the microprocessor. The alternating high-frequency attenuated sinusoidal oscillating current signals act together on the pipeline 1, further improving the descaling effect.

[0069] Embodiment 2:

[0070] like Figure 4 As shown, the embodiment of the present invention provides a pipeline descaling method. The method can be based on the pipeline descaling device described in Example 1. Therefore, the specific definition of the pipeline descaling method embodiment provided below can refer to the definition of the pipeline descaling device above, and will not be repeated here. This flow chart only shows the logical sequence of the method described in this embodiment. Under the premise of no conflict, in other possible embodiments of the present invention, different Figure 4 The steps shown or described are completed in the order shown. The method specifically comprises the following steps:

[0071] Connecting the pipeline descaling device to a power source;

[0072] The frequency generated by the microprocessor is A high-frequency pulse signal drives the switch element to turn on;

[0073] The inductor 3, the switch element, the capacitor element and the resistance of the inductor 3 constitute a second-order RLC series zero-input response circuit, the second-order RLC series zero-input response circuit is in an under-damped oscillation state, and the oscillation waveform envelope decays exponentially;

[0074] The second-order RLC series zero-input response circuit generates a frequency of The decaying oscillation signal;

[0075] The damped oscillation signal modulated into the high frequency pulse signal On, the mixed frequency Alternating high-frequency decaying oscillating current signal;

[0076] The mixing frequency The alternating high-frequency attenuated oscillating current signal is amplified and then acts on the pipeline 1 to be treated in the magnetic ring to remove scale on the inner surface of the pipeline 1 .

[0077] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of this disclosure / application.

Claims

1. A pipeline descaling device, characterized in that: include: Microprocessors, switch elements, inductors, magnetic rings, and capacitors; The output terminal of the microprocessor is connected to the switch element; The inductive coil is wound around the magnetic ring, and the pipe to be processed passes through the magnetic ring; The inductor is connected in series with the switch element and then connected in parallel with the capacitor element; The capacitive element is a polarized capacitor and is connected to a power circuit.

2. The pipeline descaling device according to claim 1, characterized in that: The inductor coil is composed of one or more groups of multi-core wires.

3. The pipeline descaling device according to claim 1, characterized in that: The magnetic ring is a detachable ferrite magnetic ring.

4. The pipeline descaling device according to claim 1, characterized in that: The switch element is a field effect tube or a triode.

5. The pipeline descaling device according to claim 1, characterized in that: The microprocessor adopts an STM32 microprocessor.

6. The pipeline descaling device according to claim 5, characterized in that: A power step-down module is connected between the power interface of the microprocessor and the power circuit; the power step-down module includes one or more step-down converters.

7. The pipeline descaling device according to claim 1, characterized in that: It also includes a current limiting module and a reverse protection module connected in series with the inductor coil and the capacitor element; Among them, the current limiting module adopts a resistor with a power range of 1W to 2W, and the reverse protection module adopts a rectifier diode.

8. The pipeline descaling device according to claim 1, characterized in that: A protection module is connected between the pipeline descaling device and the power supply circuit to protect the power supply circuit when a short circuit occurs in the pipeline descaling device; The protection module includes a fast recovery fuse.

9. The pipeline descaling device according to claim 1, characterized in that: Also includes a work indication module connected to the microprocessor; The work indication module includes a plurality of groups of light emitting diodes and current limiting resistors connected in series; The microprocessor is configured to control the light emitting state of the light emitting diode.

10. A pipeline descaling method using the pipeline descaling device according to any one of claims 1 to 9, characterized in that: include: Connecting the pipeline descaling device to a power source; The frequency generated by the microprocessor is A high-frequency pulse signal drives the switch element to turn on; The inductor, the switch element, the capacitor element and the resistance of the inductor constitute a second-order RLC series zero-input response circuit, the second-order RLC series zero-input response circuit is in an underdamped oscillation state, and the oscillation waveform envelope decays exponentially; The second-order RLC series zero-input response circuit generates a frequency of The decaying oscillation signal; The damped oscillation signal modulated into the high frequency pulse signal On, the mixed frequency Alternating high-frequency decaying oscillating current signal; The mixing frequency The alternating high-frequency attenuated oscillating current signal is amplified and applied to the pipe to be treated in the magnetic ring to remove scale on the inner surface of the pipe.

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