CN1169527A - Sound emitter for low frequency sound - Google Patents
Sound emitter for low frequency sound Download PDFInfo
- Publication number
- CN1169527A CN1169527A CN 96108365 CN96108365A CN1169527A CN 1169527 A CN1169527 A CN 1169527A CN 96108365 CN96108365 CN 96108365 CN 96108365 A CN96108365 A CN 96108365A CN 1169527 A CN1169527 A CN 1169527A
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- piston
- acoustic transmitter
- sound
- heat
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Abstract
The sound emitter adapted for cleaning heat exchanger and operating without admixing any compressed air into any heat-exchanging medium is according to the present invention obtained thereby that a pulsator comprises an oscillating piston in a cylinder, one side of the piston being in direct connection with heat exchanging medium inside the heat exchagner via a resonance tube.
Description
The present invention relates to the acoustic transmitter of all-bottom sound (sound wave that promptly has the frequency that is lower than about 50Hz), this acoustic transmitter is used for the surface of the large-scale heat exchanger of heat exchanger especially food or chemical engineering industry is cleaned, and above-mentioned acoustic transmitter comprises a pulser (pulsator) that is connected with a resonantron (res-onance tube).
Known in the prior art and used sound wave to remove black dirt or carry out heat-clearing method.What often use is the sound wave with the frequency within the frequency band that can hear.It is favourable using the sound wave with low frequency in big boiler or other big space.The big wavelength of sound wave might be used in that equally distributed acoustic energy is full of this space in a certain space.
In known factory, acoustic transmitter comprises a valve that is connected with a source that is used for compressed air.Above-mentioned valve be adjusted to 15 and 50Hz between frequency send compressed-air actuated pulse to resonantron.In order to obtain an acceptable acoustic pressure (130 to 133dB), the air that needs an each second during the excitation of the acoustic transmitter of a medium scale factory of cleaning (plant) about 150 standards rise flows.
In food or chemical engineering industry, often do not allow compressed air is incorporated into heat-exchange medium.It is forbidden cleaning with the method for launching sound wave in these cases.
The purpose of this invention is to provide a kind of acoustic transmitter, this acoustic transmitter does not rely on compressed air is blown into one of heat-exchange medium, and therefore, this acoustic transmitter can be used to number of chemical industry, particularly food industry.
According to the present invention, above-mentioned purpose reaches in the following manner: pulser comprises a piston-piston-cylinder unit (piston-cylinder unit), in this unit, a side of piston links to each other with a connecting rod, and the opposite side of this piston has limited a part of cylinder space.This partial cylinders space directly links to each other with one of heat-exchange medium by resonantron.
The present invention is described in more detail with reference to the accompanying drawings.
Fig. 1 has schematically shown the factory that uses acoustic emission to clean.
Fig. 2 has represented according to acoustic transmitter of the present invention with bigger ratio.
In Fig. 1, represent heat exchanger with reference number 1.First media is by entering opening 2 and be introduced into heat exchanger 1 and above-mentioned first media leaving interchanger 1 by exporting 3.
Second media is by passage 4, and is for example, this by flowing with respect to first media laterally.
In order to remove deposit, two all- bottom sound transmitters 5 and 6 are provided from the surface of passage 4.In them each comprises a resonantron 7 and a pulser 8.Control two transmitters by a common unit 9.
In Fig. 2, represented the design of all-bottom sound transmitter with bigger ratio.
Piston one piston-cylinder unit 10 comprises a piston 11 that is suitable for vibration in cylinder 12.One side of piston 11 is connected with connecting rod 13 on being installed in crank 14, and 15 pairs of cranks 14 of asynchronous machine drive.The opposite side of piston 11 is limiting a part of cylinder space 16, and this part cylinder space 16 directly is coupled with resonantron 7.
When above-mentioned resonantron 7 (as shown in Figure 1) was sent into heat exchanger 1 hermetically, piston 11 directly contacted with first heat-exchange medium.
At asynchronous machine 15 is that speed is 950r.p.m, corresponding to the frequency of 15.9Hz under 6 utmost points design (6-pole design) and the situation by the AC-powered of 50Hz.At it is that frequency is 24Hz under the situation of 4 utmost points design.
By using, might avoid air is sneaked into heat-exchange medium according to acoustic transmitter of the present invention.And only need less pipeline (tubing), even, and to compare by the energy consumption of the acoustic transmitter of compressed air-driven, energy consumption has also reduced.
Claims (2)
1. the acoustic transmitter of all-bottom sound (sound wave that promptly has the frequency that is lower than about 50Hz), this acoustic transmitter is used for the surface of the large-scale heat exchanger of heat exchanger especially food or chemical engineering industry is cleaned, above-mentioned acoustic transmitter comprises that the pulser (7) that is connected with a resonantron (8) (pulsator), be characterised in that: above-mentioned pulser (8) comprises a piston-piston-cylinder unit (10), in this unit, one side of piston (11) links to each other with a connecting rod (13), and the opposite side of this piston has limited a part of cylinder space (16), and this partial cylinders space directly links to each other with one of heat-exchange medium by resonantron (7).
2. acoustic transmitter according to claim 1 is characterized in that: above-mentioned connecting rod (13) is installed on the crank (14) that is directly driven by asynchronous machine (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96108365 CN1169527A (en) | 1996-06-24 | 1996-06-24 | Sound emitter for low frequency sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96108365 CN1169527A (en) | 1996-06-24 | 1996-06-24 | Sound emitter for low frequency sound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1169527A true CN1169527A (en) | 1998-01-07 |
Family
ID=5119950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96108365 Pending CN1169527A (en) | 1996-06-24 | 1996-06-24 | Sound emitter for low frequency sound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1169527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358552A (en) * | 2013-05-11 | 2016-02-24 | 默克专利股份公司 | Arylquinazolines |
-
1996
- 1996-06-24 CN CN 96108365 patent/CN1169527A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358552A (en) * | 2013-05-11 | 2016-02-24 | 默克专利股份公司 | Arylquinazolines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |