Shear elastic wave on-line anti-scaling and descaling system and anti-scaling and descaling method

A shear elastic and anti-scaling technology, applied in the field of scale removal and anti-scaling, can solve the problems of short service life of heat exchangers, lower production efficiency, narrow application range, etc., and achieve fewer failure points, long service life, and extremely Effect

Active Publication Date: 2019-03-26
上海兴全电力技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a shear elastic wave online scale prevention and descaling system and a scale prevention and descaling method, which are used to overcome the low efficiency of descaling in the prior art, and the heat exchanger Short service life, high cost, reduced production efficiency, easy introduction of secondary pollution, narrow application range and other defects

Method used

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  • Shear elastic wave on-line anti-scaling and descaling system and anti-scaling and descaling method
  • Shear elastic wave on-line anti-scaling and descaling system and anti-scaling and descaling method
  • Shear elastic wave on-line anti-scaling and descaling system and anti-scaling and descaling method

Examples

Experimental program
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Embodiment 1

[0053] This example is the application of the scale removal and anti-scaling method using the shear elastic wave online anti-scaling and descaling system on the shell-and-tube heat exchanger: the shell-and-tube heat exchanger is the most commonly used heat exchange equipment in the process industry , according to different application methods, some are tube-side fouling, and some are shell-side fouling. In areas with relatively mild fouling, conventional chemical dosing technology or electronic anti-scaling and descaling technology are effective, but in the actual production field, there are many heat exchangers with very serious fouling, and the heat exchangers have been running for more than 20 days Most of the heat exchangers will be blocked and need to be shut down for maintenance and cleaning, seriously affecting production and causing a lot of energy waste. For example, the technology of the present invention is applied to a sewage evaporator or a reboiler with serious f...

Embodiment 2

[0058] In this example, the application of the scale removal and scale prevention method using the shear elastic wave online scale prevention and scale removal system on pipes, valves and small shell-and-tube heat exchangers:

[0059] In the industrial production process, pipes, valves and small shell-and-tube heat exchangers are often blocked due to scaling or scarring. as follows Figure 4 As shown, the small shell-and-tube heat exchanger 14 is vertically connected with the transducer 2 by a fixture. Such as Figure 5 As shown, the transducer 2 is connected to a small shell-and-tube heat exchanger 15 at an angle.

Embodiment 3

[0061] see Figure 6 In this embodiment, the plate heat exchanger 6 includes several heat exchange plates 61, wave vibration rods 68, front splints 62 and rear splints 63, and one end of the wave vibration rods 68 is equipped with at least one transducer 2, wherein A plurality of heat exchange plates 61 form a heat exchange plate bundle in the frame of the heat exchanger equipment, and each heat exchange plate 61 is closely connected with the vibration rod 68. The heat exchanger equipment frame is composed of a front splint 62 and a rear splint 63. The heat exchange plate bundle is arranged between the front splint 62 and the rear splint 63. The front splint 62 and the rear splint 63 are provided with a thermal fluid inlet 64, a heat Fluid outlet 65 , cold fluid inlet 66 , cold fluid outlet 67 . And the vibration rod 68 also passes through the front splint 62 and the rear splint 63 with a gap. The working principle is that the energy of the shear elastic wave of the transduc...

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Abstract

The invention discloses a shear elastic wave on-line anti-scaling and descaling system. The shear elastic wave on-line anti-scaling and descaling system comprises an alternating-current power supply,a rectification filtering circuit, an inverter circuit, a DSP micro-processing system, an A/D conversion circuit, a transducer and a harmonic sampling circuit. The invention further provides an anti-scaling and descaling method adopting the shear elastic wave on-line anti-scaling and descaling system, the A/D conversion circuit sends a signal to the DSP micro-processing system, the DSP micro-processing system finds all vibration modal harmonic response frequency points of descaled equipment through signal calculation processing, the inverter circuit is controlled to output alternating-currentpulses of the frequency F and excite the transducer, thus the descaled equipment obtains shear elastic waves with the maximum efficiency, and the efficient descaling effect is achieved. The descalingand anti-scaling efficiency is high, the cost is low, and pollution is small.

Description

technical field [0001] The invention belongs to the technical field of scale removal and scale prevention, and in particular relates to a shear elastic wave online scale prevention and scale removal system and a scale prevention and scale removal method. Background technique [0002] Heat transfer and mass transfer are indispensable processes in the technological process. The heat exchanger is an essential equipment for heat transfer. The heat exchanger uses materials with excellent thermal conductivity as the heat transfer surface to transfer heat. Fouling is the layer of solid or slimy substance attached to the heat exchange surface, which usually exists in the form of a mixture. The formation process of fouling is the process of the heat exchange surface from a clean state to being covered with dirt. This process widely exists in industrial production in process. Dirt not only hinders heat transfer, but also increases the resistance of fluid flowing through the heat exch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F19/00F28G7/00F28G15/00
CPCF28F19/002F28G7/00F28G15/003
Inventor 褚兴全褚校崧
Owner 上海兴全电力技术有限公司
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