Ultrasonic transducer used in strong-acid environment

An ultrasonic and strong acidic technology, applied in the direction of fluid using vibration, etc., can solve problems such as corrosion of the transmitting end of the stainless steel sound field, achieve the effects of reducing labor costs, improving liquid delivery efficiency, and facilitating promotion

Active Publication Date: 2013-10-02
滕州方冠企业管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the problems in the prior art, to provide an ultrasonic transducer used in a strongly acidic environment, and to solve the corrosion problem

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In order to compare the ultrasonic transducer of the present invention with the ultrasonic emission effect of the common stainless steel plate transmitting head transducer, the connection mode of its testing device is as follows image 3 shown. According to the industrial production conditions of a zinc industry group company, we designed a set of static pipeline ultrasonic field strength testing system. The equipment includes: F40 digital synthetic function signal generator, power amplifier (HSA4011), ultrasonic transducer, 3770mm long polyethylene pipe, digital oscilloscope (TDS2024), and ultrasonic probe. The system is used to test and compare the ultrasonic emission intensity of the ultrasonic transducer of the present invention and the common stainless steel plate emitting head transducer. For the convenience of characterization, the size, transmission power and operating frequency of the two ultrasonic transducers are selected to be the same.

[0039] Ceramic ul...

Embodiment 2

[0047] In this embodiment, the influence of the diameter of the boss at the thick end of the frustum-shaped waveguide on the transmission of ultrasonic intensity is compared, and the connection method of the test device is as follows: image 3 shown. The diameter of the boss should not be too small: because the acoustic impedance Z of plastic (take polyethylene as an example), aluminum, and ceramics is about 4.0078g / cm 2 s, 81.7g / cm 2 s, 87.04g / cm 2 s, the acoustic impedance of polyethylene is quite different from that of aluminum and ceramics, and the plastic support plate is placed between the cone-shaped waveguide and the ceramic ultrasonic transmitter to form two acoustic reflection interfaces, which directly affect the transmission of ultrasonic waves. . The diameter of the boss is small, and the transmission effect of the ultrasonic intensity is not good. The diameter of the boss should not be too large, otherwise the effective area of ​​the acid-proof gasket is smal...

Embodiment 3

[0053] Prepare 0.05mol / L, 0.1mol / L, 0.2mol / L, 0.5mol / L, 1.0mol / L H 2 SO 4 , HCl, HNO 3 Aqueous solution, the zinc sulfate aqueous solution in embodiment 1 is changed into the H of different acidity 2 SO4 , HCl, HNO 3 water solution, and then connect the ultrasonic descaler with the ultrasonic generator for a one-month test. The connection method of the test device is as follows: image 3 shown. One month later, the ultrasonic descaling device was disassembled, and the corrosion degree of the ceramic ultrasonic emitting head of the ultrasonic transducer composite emitting head device was observed. The results showed that the surface of the ceramic ultrasonic emitting head in the strong acidic aqueous solution of 0.05mol / L was smooth, Not corroded; 0.1mol / L strong acidic aqueous solution of ceramic ultrasonic transmitter surface is smooth, not corroded; 0.2mol / L strong acidic aqueous solution of ceramic ultrasonic transmitter surface is smooth, not corroded; 0.5mol / L The su...

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Abstract

The invention relates to an ultrasonic transducer used in a strong-acid environment. The ultrasonic transducer mainly comprises a ceramic ultrasonic emission head, a frustum-shaped waveguide bar, an annular ceramic piezoelectric vibrator and a steel load, wherein the ultrasonic emission head is fixedly connected with the thick end of the waveguide bar by a thumb screw; a plastic support plate is connected with a boss in a sleeving manner; an acidproof washer is arranged between the plastic support plate and the emission head; and the thin end of the waveguide bar is sequentially connected with the annular ceramic piezoelectric vibrator and the steel load by a connecting threaded rod. The ultrasonic transducer can be used in the strong-acid environment, achieves scaling prevention and descaling during conveying of acid salt liquid in an organic high polymer pipeline, and improves the liquid conveying efficiency of the pipeline. The repair cycle interval of the pipeline is delayed greatly, the labor cost is lowered, the production efficiency is improved, materials used by the transducer are simple and easy to obtain, the repeatability is good, the mounting technical requirement is low, and the transducer is convenient to popularize, simple in structure, good in effect, low in manufacturing cost and suitable for a factory.

Description

technical field [0001] The invention relates to the technical field of ultrasonic transducers, in particular to an ultrasonic transducer used in a strongly acidic environment. Background technique [0002] Ultrasonic descaling uses the cavitation effect, shearing effect and inhibition effect of ultrasonic waves in the process of propagation, and changes the physical structure of water to achieve the effect of anti-scaling and descaling. There is no need to add any chemical agents to use ultrasonic descaling, and there is no harm to the human body; the descaling effect is obvious; the equipment is small in size, easy to install, and does not affect the normal use of heat exchange equipment; the operation is simple and maintenance-free, and there is no special operation and management , No corrosion of equipment, long service life; online non-stop production, anti-scaling, two-way functions of descaling, etc., ultrasonic descaling devices have been used in many places in our c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06
Inventor 李坤施瑕玉李政耿志明蒋超徐晓鹏
Owner 滕州方冠企业管理咨询有限公司
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