CN115930203A - Fluid descaling equipment - Google Patents
Fluid descaling equipment Download PDFInfo
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- CN115930203A CN115930203A CN202210235124.2A CN202210235124A CN115930203A CN 115930203 A CN115930203 A CN 115930203A CN 202210235124 A CN202210235124 A CN 202210235124A CN 115930203 A CN115930203 A CN 115930203A
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Abstract
The application discloses fluid scale removal equipment includes: an external transducer for forming a magnetic field around the fluid conduit; a built-in transducer for generating ultrasonic waves within the fluid conduit; a first driver for generating an electrical signal for driving the external transducer; a second driver for generating an electrical signal for driving the built-in transducer; a main housing for accommodating at least the built-in transducer; the external transducer includes: the external coil is used for generating a magnetic field through electric energy; the external magnetic blocks are at least arranged to surround the fluid pipeline; the external coil is provided with a coil hole, at least one external magnetic block penetrates through the coil hole, and movable connection capable of being locked in relative positions is formed between the external magnetic blocks. The fluid descaling device has the beneficial effect that the fluid descaling device for effectively descaling the fluid pipeline through the composite action of the ultrasonic waves and the magnetic field is provided.
Description
Technical Field
The application relates to descaling equipment, in particular to fluid descaling equipment.
Background
Scaling of heating surfaces of equipment such as boilers and heat exchangers using various fluids as media has always been a significant problem in related industries. According to a large amount of collected data, the components of the scale mainly comprise two main categories of scale and crystals formed by chemical and physical properties, and the scale has certain hardness, heat insulation and adhesiveness, so that the long-term accumulation can reduce the energy conversion efficiency of the boiler and a heat exchanger, and cause potential safety hazards such as pipeline explosion caused by nonuniform heating.
At present, the traditional main flow mode of descaling is mainly chemical liquid treatment, has the defects of large pollution, high cost, influence on equipment operation and the like, does not fundamentally solve the problem of scaling, and has the policy of breaking sustainable development; each cleaning of the chemical agent results in the equipment being shut down, disassembled and reinstalled, wasting a significant amount of time and human resources, and also risking possible damage to the equipment.
In the related art, the fluid pipeline is descaled by means of ultrasonic waves, but the effect of descaling the pipeline by means of the ultrasonic waves is general.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Some embodiments of the present application propose a fluid descaling device to solve the technical problems mentioned in the background section above.
Some embodiments of the present application provide a fluid descaling device for being mounted to an outside of a fluid pipe to remove scale from an inside of the fluid pipe, the fluid descaling device comprising: an external transducer for forming a magnetic field around the fluid conduit; a built-in transducer for generating ultrasonic waves within the fluid conduit; a first driver for generating an electrical signal for driving the external transducer; a second driver for generating an electrical signal for driving the built-in transducer; the main machine shell is at least used for accommodating the built-in transducer, the first driver and the second driver; the external transducer includes: the external coil is used for generating a magnetic field through electric energy; the external magnetic blocks are at least arranged to surround the fluid pipeline; the external coil is constructed to surround a coil hole, at least one external magnetic block penetrates through the coil hole, and movable connection capable of being locked in relative positions is formed between the external magnetic blocks.
Furthermore, the external magnetic blocks are rotationally connected with each other.
Furthermore, the rotation axes of the external magnetic blocks which are rotationally connected are arranged in parallel.
Furthermore, a rotation axis surrounded by the external magnetic blocks in a rotation connection mode is parallel to the length direction of the main machine shell.
Furthermore, the ratio of the size of the external magnetic block in the length direction of the main machine shell to the size of the main machine shell in the length direction ranges from 0.03 to 0.5. As a specific scheme, the size range of the external magnetic block in the length direction of the main machine shell is 20mm to 75mm, and the size range of the main machine shell in the length direction of the main machine shell is 160mm to 600mm.
Further, the external magnetic block is constructed to have a cross section of a kidney shape.
Further, the built-in transducer comprises an ultrasonic transducer, and the frequency range of ultrasonic waves generated by the ultrasonic transducer is 10KHz to 200KHz.
Further, the ultrasonic transducer is a giant magnetostrictive transducer.
Further, the first driver includes: a first signal generating circuit; the first signal generating circuit is used for generating an electric signal with a waveform of at least one of square waves, sine waves and triangular waves.
Further, the first driver and the second driver respectively control the internal transducer and the external transducer to alternately work at the same driving signal frequency, namely when the internal transducer works, the external transducer stops working, and when the external transducer works, the internal transducer stops working, the frequency range of the alternate working is 10KHz to 200KHz, and the frequency of the alternate working can be approximate to or equal to the respective driving frequency of the internal transducer and the external transducer.
The beneficial effect of this application lies in: a fluid descaling device for effectively descaling a fluid pipeline through the composite action of ultrasonic waves and a magnetic field is provided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.
Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a schematic view of a fluid descaling device according to an embodiment of the present application in combination with a fluid line;
FIG. 2 is a schematic perspective view of a first perspective view of the fluid descaling device of the embodiment shown in FIG. 1
FIG. 3 is a schematic perspective view of a second perspective view of the fluid descaling device of the embodiment of FIG. 1;
FIG. 4 is a schematic side view of the fluid descaling device of the embodiment of FIG. 1;
FIG. 5 is a schematic illustration of an explosive structure of the fluid descaling device of the embodiment of FIG. 1;
FIG. 6 is a schematic diagram of the fluid descaling apparatus of the embodiment of FIG. 1 with the heat sink housing removed;
FIG. 7 is a first schematic structural view of an external transducer of the fluid descaling device of the embodiment of FIG. 1;
FIG. 8 is a second schematic diagram of the external transducer of the fluid descaling device of the embodiment of FIG. 1;
FIG. 9 is an exploded view of the external box of the fluid scale removal device of the embodiment of FIG. 1;
FIG. 10 is a schematic electrical schematic diagram of a fluid descaling device according to an embodiment of the present application;
FIG. 11 is a schematic illustration of the steps of a fluid descaling method according to an embodiment of the present application;
fig. 12 is a schematic view of a descaling principle of the fluid descaling device according to an embodiment of the present application.
The meaning of the reference symbols in the figures:
a fluid descaling device 100;
an external transducer 101;
a master equipment box 102;
built-in transducers (entities not shown in the figure);
a first driver (entity not shown in the figure);
two drivers (not shown);
a main machine housing 103, a main body support 1031, a power interface 1031a, a heat dissipation housing 1032;
the external wire box 104, a box body 1041, a coil through hole 1041a, a square-shaped groove 1041b and a box cover 1042;
external coils (not shown);
an external magnetic block 105;
a spindle bolt 106;
a spindle nut (not shown in the figures);
the fluid conduit(s) 200 are,
the size L1 of the external magnetic block in the length direction of the main machine shell and the size L2 of the main machine shell in the length direction of the main machine shell are equal.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, a fluid descaling device 100 of the present application is provided for being mounted to the outside of a fluid pipe to remove scale from the inside of the fluid pipe.
Specifically, the fluid descaling device 100 includes: an external transducer 101, an internal transducer, a first driver, a second driver, and a host housing 103.
The external transducer 101 is used for forming a magnetic field around the fluid pipeline; the built-in transducer is used for generating ultrasonic waves in the fluid pipeline; the first driver is used for generating an electric signal for driving the external transducer 101; the second driver is used for generating an electric signal for driving the built-in transducer; the main body case 103 is used to accommodate at least the built-in transducer, the first driver, and the second driver.
As a more specific scheme, a first driver, a second driver, and a built-in transducer are provided in the main device box 102102, and then the main device box 102102 is provided in the main body housing 103. The host housing 103 includes a host holder 1031 and a heat sink housing 1032.
As a more specific aspect, the external transducer 101 includes: an external coil and a plurality of external magnetic blocks 105. Specifically, the external coil is used for generating a magnetic field through electric energy; the external magnetic block 105 is arranged to at least form a loop around the fluid conduit. The external magnetic blocks 105 can be respectively detached to surround the fluid pipeline, and the main machine housing 103 can be partially fixed to the outside of the fluid pipeline by additional fixing devices, such as iron wires.
The external coil is constructed to surround a coil hole, at least one external magnetic block 105 penetrates through the coil hole, and movable connection capable of being locked in relative positions is formed between the external magnetic blocks 105. As a preferable scheme, as shown in fig. 5, 8 and 9, the external coil is accommodated in an external wire box 104, the external wire box 104 includes a box body 1041 and a box cover 1042, the box cover 1042 is installed at one side of the box body 1041 and can close or open an inner space of the box body 1041, the box body 1041 is formed with a loop-shaped groove, the external coil can form a coil hole around through the loop-shaped groove, and a coil through hole 1041a is formed at one side of the box cover 1042 close to the host housing 103, so that the external coil can be electrically connected with a circuit or a device inside the host housing 103. Specifically, the external wire box 104 is fixedly connected with the main machine housing 103.
Alternatively, the external magnetic block 105 may be made of ferrite material.
Preferably, the external magnetic blocks 105 are rotationally connected, that is, one external magnetic block 105 is rotationally connected with another external magnetic block 105. Furthermore, the external magnetic block 105 is configured as a strip structure, and two ends of the strip structure are respectively connected with the other two external magnetic blocks 105 in a rotating manner.
Preferably, the rotation axes of the external magnetic blocks 105 forming the rotational connection are all arranged in parallel, and the rotation axes of the external magnetic blocks 105 forming the rotational connection are parallel to the length direction of the main machine housing 103. The external magnetic block 105 is configured to have a kidney-shaped cross section.
As a specific scheme, through holes may be formed at both ends of the external magnetic block 105 itself, and the external magnetic block can be rotatably connected by a rotating plug 106 inserted into the through holes, which is also beneficial to the convenience of disassembly. Locking of the rotary latch 106 may be accomplished by a spindle nut. Thus, different numbers of external magnetic blocks 105 can be installed according to the size of the fluid pipeline 200.
External coil electric connection to second driver to produce the magnetic field, and then make external magnetic path 105 produce the magnetic field at the fluid pipeline periphery, through the formation mechanism analysis discovery to the scale deposit compound, have certain electromagnetic energy radiation and penetrate the ion in the water, can make the electron of ion tend to the steady state, and this kind of steady state can let the easy electron of scale deposit in the aquatic not take place to shift, thereby the process that prevents to form the compound just lets the ion of aquatic not form the incrustation scale on heat exchanger surface, prevents that the incrustation scale from attaching to.
The built-in transducer comprises an ultrasonic transducer, and the frequency range of ultrasonic waves generated by the ultrasonic transducer is 10KHz to 200KHz. 50 to 200 full band sweeps in 1 second can be achieved.
Preferably, the ultrasonic transducer is a giant magnetostrictive transducer.
Ultrasonic waves are converted into short-wave mechanical waves through a transducer and are transmitted into a fluid medium, and tens of thousands of micro bubbles are generated in the fluid due to the cavitation action of the ultrasonic waves; the tiny bubbles (air core) in the fluid grow rapidly when the sound intensity reaches a certain value, then close suddenly, the shock wave generated when the bubbles close explodes, thousands of atmospheric pressure is generated around the scale attached on the heat exchanger, and the scale is destroyed and dispersed in the fluid, thus achieving the purpose of descaling.
As shown in fig. 2, the first driver and the second driver may have respective signal generating circuits and power amplifying circuits. Namely, the first driver includes: a first signal generating circuit; the first signal generating circuit is used for generating an electric signal with a waveform of at least one of square waves, sine waves and triangular waves. Similarly, the second driver includes: a second signal generating circuit; the second signal generating circuit is used for generating an electric signal with a waveform of at least one of a square wave, a sine wave and a triangular wave.
Preferably, the three-dimensional coordinate axes shown in fig. 1 are taken as examples, the central line of the pipeline axis is taken as an X axis, the built-in transducer radiates in the Z axis direction, and the external transducer 101 radiates in the YZ plane. The first driver and the second driver respectively control the internal transducer and the external transducer 101 to work alternately at the same driving signal frequency, namely when the internal transducer works, the external transducer 101 stops working, and when the external transducer 101 works, the internal transducer stops working, and the alternate working frequency is 10KHz to 200KHz. The frequency of the alternating operation may be similar or equal to the respective drive frequencies of the internal and external transducers 101.
As a preferred scheme, the horizontal radiation range of the external transducer 101 along the pipeline is less than or equal to 75mm, and the horizontal radiation range of the internal transducer is less than or equal to 600mm.
Preferably, the external transducer 101 generates both ultrasonic waves and an electromagnetic field. The ultrasonic waves are generated by converting the electric oscillation into ultrasonic vibration through the magnetostrictive characteristic of the ferrite.
It should be noted that the built-in transducer and the built-in transducer of the present application are not as large as possible, and a balance needs to exist between them, so that an excessive magnetic field affects the descaling effect of the ultrasonic waves, even if they work alternately, the magnetic field does not disappear immediately, and conversely, an excessive ultrasonic power affects the radiation effect of the magnetic field. Therefore, preferably, the ratio of the dimension L1 of the external magnetic block 105 in the longitudinal direction (X-axis direction, the same applies hereinafter) of the main housing 103 to the dimension L2 of the main housing 103 in the longitudinal direction is in the range of 0.03 to 0.5. Thus, the ultrasonic wave and the magnetic field which work alternately can play a good composite effect, thereby effectively removing the scale.
As shown in fig. 11 and 12, the present application further provides a fluid descaling method, specifically comprising the following steps:
ultrasonic waves are applied to the fluid line.
A magnetic field is applied to the fluid line.
The effect of the switching magnetic field and the ultrasonic waves on the fluid pipeline.
More specifically, the frequency of switching is the same as the magnetic field and the ultrasonic wave itself operating frequency.
By adopting the scheme, the descaling method using the chemical agent is used during descaling, so that the cost of the chemical agent and the operation and maintenance cost of chemical descaling are saved. Moreover, the corrosion to the tube walls of the boiler and the heat exchange equipment is reduced, the environmental pollution is reduced, and the method conforms to the guidelines of sustainable development.
From the structural point of view, the fluid descaling device has the advantages of small volume, light weight and relative convenience in installation and maintenance, and the original structure and operation state of the device do not need to be changed.
The descaling scheme adopting the ultrasonic wave and magnetic field composite effect can realize online scale prevention and descaling, and avoid the time cost spent on stopping production for chemical treatment and the capital cost for dismounting and then mounting equipment.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) the features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.
Claims (10)
1. A fluid descaling device for being installed to the outside of a fluid pipe to remove scale from the inside of the fluid pipe,
the fluid descaling device comprises:
an external transducer for forming a magnetic field around the fluid conduit;
a built-in transducer for generating ultrasonic waves within the fluid conduit;
a first driver for generating an electrical signal for driving the external transducer;
a second driver for generating an electrical signal for driving the built-in transducer;
the main machine shell is at least used for accommodating the built-in transducer, the first driver and the second driver;
the method is characterized in that:
the external transducer includes:
the external coil is used for generating a magnetic field through electric energy;
the external magnetic blocks are at least arranged to surround the fluid pipeline;
the external coil is constructed to surround a coil hole, at least one external magnetic block penetrates through the coil hole, and movable connection capable of being locked in relative positions is formed between the external magnetic blocks.
2. The fluid descaling apparatus of claim 1, wherein:
the external magnetic blocks are rotationally connected.
3. A fluid descaling device according to claim 2, wherein:
the rotation axes of the external magnetic blocks which are rotationally connected are arranged in parallel.
4. The fluid descaling apparatus of claim 3, wherein:
the rotating axis around which the magnetic blocks form rotating connection is parallel to the length direction of the main machine shell.
5. The fluid descaling apparatus of claim 1, wherein:
the ratio of the size of the external magnetic block in the length direction of the main machine shell to the size of the main machine shell in the length direction ranges from 0.03 to 0.5.
6. The fluid descaling apparatus of claim 1, wherein:
the external magnetic block is configured to have a kidney-shaped cross section.
7. The fluid descaling apparatus of claim 1, wherein:
the built-in transducer comprises an ultrasonic transducer, and the frequency range of ultrasonic waves generated by the ultrasonic transducer is 10KHz to 200KHz.
8. The fluid descaling apparatus of claim 7, wherein:
the ultrasonic transducer is a giant magnetostrictive transducer.
9. The fluid descaling apparatus of claim 1, wherein:
the first driver includes: a first signal generating circuit; the first signal generating circuit is used for generating an electric signal with a waveform of at least one of square waves, sine waves and triangular waves.
10. A fluid descaling device according to claim 1, wherein:
the first driver and the second driver respectively control the internal transducer and the external transducer to work alternately at the same driving signal frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210235124.2A CN115930203A (en) | 2022-03-11 | 2022-03-11 | Fluid descaling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210235124.2A CN115930203A (en) | 2022-03-11 | 2022-03-11 | Fluid descaling equipment |
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| CN115930203A true CN115930203A (en) | 2023-04-07 |
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| CN202210235124.2A Pending CN115930203A (en) | 2022-03-11 | 2022-03-11 | Fluid descaling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116081828A (en) * | 2023-02-22 | 2023-05-09 | 华能济宁运河发电有限公司 | Ion form stable descaling and scale preventing device and method for industrial circulating water of power plant |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050161379A1 (en) * | 2002-05-13 | 2005-07-28 | Measurement Technical Laboratory Co., Ltd. | Descaling method and descaling apparatus |
| CN101108383A (en) * | 2007-08-16 | 2008-01-23 | 刘利华 | Remote digital type ultrasound wave/frequency conversion antiscaling descaling equipment |
| CN101844824A (en) * | 2010-04-28 | 2010-09-29 | 孙臣军 | Multifunctional magnetic super-processor |
| CN201940395U (en) * | 2010-11-15 | 2011-08-24 | 哈尔滨师范大学 | Ultrasonic antifouling and descaling device of a full automatic super-huge power industry pipeline |
| CN204752340U (en) * | 2015-06-20 | 2015-11-11 | 宁夏天一节能环保科技有限公司 | Magnetic field, electromagnetic field and ultrasonic wave be anti fouling device in coordination |
| CN110563100A (en) * | 2019-10-15 | 2019-12-13 | 上海万森水处理有限公司 | Scale inhibition and scale removal device and method based on random pulse sequence alternating electromagnetic field |
| CN210333619U (en) * | 2019-08-13 | 2020-04-17 | 北京鼎仪合创科技有限公司 | High-frequency alternating magnetic field descaling device |
| CN218810874U (en) * | 2023-02-03 | 2023-04-07 | 瑞纳智能设备股份有限公司 | Scale inhibition and scale removal device for pipeline |
| CN116081828A (en) * | 2023-02-22 | 2023-05-09 | 华能济宁运河发电有限公司 | Ion form stable descaling and scale preventing device and method for industrial circulating water of power plant |
-
2022
- 2022-03-11 CN CN202210235124.2A patent/CN115930203A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050161379A1 (en) * | 2002-05-13 | 2005-07-28 | Measurement Technical Laboratory Co., Ltd. | Descaling method and descaling apparatus |
| CN101108383A (en) * | 2007-08-16 | 2008-01-23 | 刘利华 | Remote digital type ultrasound wave/frequency conversion antiscaling descaling equipment |
| CN101844824A (en) * | 2010-04-28 | 2010-09-29 | 孙臣军 | Multifunctional magnetic super-processor |
| CN201940395U (en) * | 2010-11-15 | 2011-08-24 | 哈尔滨师范大学 | Ultrasonic antifouling and descaling device of a full automatic super-huge power industry pipeline |
| CN204752340U (en) * | 2015-06-20 | 2015-11-11 | 宁夏天一节能环保科技有限公司 | Magnetic field, electromagnetic field and ultrasonic wave be anti fouling device in coordination |
| CN210333619U (en) * | 2019-08-13 | 2020-04-17 | 北京鼎仪合创科技有限公司 | High-frequency alternating magnetic field descaling device |
| CN110563100A (en) * | 2019-10-15 | 2019-12-13 | 上海万森水处理有限公司 | Scale inhibition and scale removal device and method based on random pulse sequence alternating electromagnetic field |
| CN218810874U (en) * | 2023-02-03 | 2023-04-07 | 瑞纳智能设备股份有限公司 | Scale inhibition and scale removal device for pipeline |
| CN116081828A (en) * | 2023-02-22 | 2023-05-09 | 华能济宁运河发电有限公司 | Ion form stable descaling and scale preventing device and method for industrial circulating water of power plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116081828A (en) * | 2023-02-22 | 2023-05-09 | 华能济宁运河发电有限公司 | Ion form stable descaling and scale preventing device and method for industrial circulating water of power plant |
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