CN104596351A - Method for cleaning shell-and-tube heat exchanger through ultrasonic waves - Google Patents
Method for cleaning shell-and-tube heat exchanger through ultrasonic waves Download PDFInfo
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- CN104596351A CN104596351A CN201410701966.8A CN201410701966A CN104596351A CN 104596351 A CN104596351 A CN 104596351A CN 201410701966 A CN201410701966 A CN 201410701966A CN 104596351 A CN104596351 A CN 104596351A
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- heat exchanger
- tube heat
- cleaning
- auxiliary cleaner
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Abstract
The invention provides a method for cleaning a shell-and-tube heat exchanger through ultrasonic waves. The method mainly includes the following steps of firstly, detaching an end cap on one side of the shell-and-tube heat exchanger, and installing an auxiliary cleaning device at the position of the existing end cap; secondly, connecting a water outlet of the auxiliary cleaning device with a shell side fluid outlet of the shell-and-tube heat exchanger through a metal hose, and adding cleanout fluid in a shell side of the shell-and-tube heat exchanger through a water supplementing opening of the auxiliary cleaning device; thirdly, starting an ultrasonic wave generating device, and cleaning the shell-and-tube heat exchanger through the ultrasonic waves; fourthly, discharging dirty fluid in the shell-and-tube heat exchanger after cleaning the shell-and-tube heat exchanger for 10 minutes to 30 minutes, repeatedly cleaning the shell-and-tube heat exchanger, and confirming that the shell-and-tube heat exchanger is cleaned up. The method is high in cleaning efficiency and good in cleaning effect; meanwhile, the problems that by means of a traditional cleaning method, mechanical abrasion is caused, and tube bundles are abraded under high pressure are greatly reduced, and the service life of the device is prolonged.
Description
Technical field
The invention belongs to metallurgical equipment maintenance technology field, relate to a kind of method of Ultrasonic Cleaning shell-and-tube heat exchanger.
Background technology
In field of metallurgy and chemical engineering, shell-and-tube heat exchanger is a kind of conventional chemical industry equipment, after using a period of time, the surface of pipe for shell-and-tube exchanger bundle can adhere to various dirt, as greasy dirt, grease, dust, rust etc., the heat transfer effect of shell-and-tube heat exchanger can be affected, specific refrigerating effect is declined.Therefore, periodic cleaning is the important step that shell-and-tube heat exchanger is safeguarded, the quality of cleaning performance, directly has influence on the technological parameter of shell-and-tube heat exchanger.For a long time, the cleaning of shell-and-tube heat exchanger mainly adopts cleaning fluid manual cleaning, specifically adopt high-temperature-hot-water to soak and rinse and mechanical method of dredging, but due to the strong adhesion of greasy dirt, the effect of cleaning is not ideal, the tube bank and mechanical chipping can wear and tear, cause equipment loss, severe patient is damage equipment even.
Summary of the invention
The object of the invention is to for prior art Problems existing, provide a kind of method of Ultrasonic Cleaning shell-and-tube heat exchanger, the method cleaning efficiency is high and cleaning performance good.
For this reason, the present invention adopts following technical scheme:
A method for Ultrasonic Cleaning shell-and-tube heat exchanger, comprises the steps:
(1) end cap of shell-and-tube heat exchanger side is removed, in former end cap position, auxiliary cleaner is installed; Described auxiliary cleaner comprises casing, and the top of described casing is provided with water supplement port, bottom is provided with delivery port, and casing is fixed with ultrasonic generator;
(2) with the delivery port of connection by metal hose auxiliary cleaner and the shell side fluid outlet of shell-and-tube heat exchanger, in the shell side of shell-and-tube heat exchanger, added the cleaning fluid of 70-80 DEG C by the water supplement port of auxiliary cleaner, and stop adding cleaning fluid when cleaning fluid is overflowed in the shell-side fluid import of shell-and-tube heat exchanger;
(3) start ultrasonic generator, controlling Ultrasonic Cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz ~ 50kHz, carries out Ultrasonic Cleaning;
(4) clean after 10-30 minute, disconnect the connection of metal hose and auxiliary cleaner delivery port, the soiling solution in blow-down pipe shell heat exchanger, is connected metal hose with the delivery port of auxiliary cleaner after emptying again, repeat step (1) to (4), repeatedly clean;
(5) after cleaning terminates, check the tube bank of shell-and-tube heat exchanger, confirm cleaning performance, as confirmed to clean up, then remove auxiliary cleaner, reinstall the shell-and-tube heat exchanger end cap dismantled, recover the operation of shell-and-tube heat exchanger.
Further, in step (2), the composition of described cleaning fluid is configured to: formic acid 81%, water 17%, buffer 1.2%, surfactant 0.8%.
Further, in step (4), carry out 2-5 cleaning continuously.
In the present invention, auxiliary cleaner can convert the ultrasonic wave acoustic energy that ultrasonic generator produces to mechanical oscillation, and by the outer wall of auxiliary cleaner by Ultrasonic Radiation to the cleaning fluid in shell-and-tube heat exchanger.Owing to being subject to hyperacoustic radiation, enable the microbubble in cleaning fluid under the effect of sound wave, keep vibration, destroy the absorption that dirt is surperficial with tube bank, cause the fatigue rupture of crud layer and be stripped, by the vibration of the gaseous type bubble produced because of ultrasonic wave, tube bank surface is cleaned repeatedly simultaneously, make the tube bank of shell-and-tube heat exchanger can obtain thorough Rapid Cleaning.
Beneficial effect of the present invention is: cleaning efficiency is high, significantly reduces the labour intensity of shell-and-tube heat exchanger cleaning, and cleaning process is clean, environmental protection; Cleaning performance is good, effectively ensure that the normal operating parameters requirement of shell-and-tube heat exchanger; Adopt Ultrasonic Cleaning, also greatly reduce the problem that conventional clean mode causes mechanical wear, high pressure wearing and tearing tube bank, extend equipment life, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of shell-and-tube heat exchanger;
Fig. 2 is the structural representation of auxiliary cleaner of the present invention;
Fig. 3 is the operating diagram of Ultrasonic Cleaning shell-and-tube heat exchanger of the present invention;
In figure, 1-shell-and-tube heat exchanger, 2-end cap, 3-restrains, the import of 4-shell-side fluid, 5-shell side fluid outlet, 6-casing, 7-water supplement port, 8-delivery port, 9-ultrasonic generator, 10-metal hose.
Detailed description of the invention
A method for Ultrasonic Cleaning shell-and-tube heat exchanger, comprises the steps:
(1) by shell-and-tube heat exchanger 1(structure see Fig. 1) a side end cap remove, in former end cap position, auxiliary cleaner is installed; As shown in Figure 2, described auxiliary cleaner comprises casing 6, and the top of casing 6 is provided with water supplement port 7, bottom is provided with delivery port 8, casing 6 is fixed with ultrasonic generator 9;
(2) as shown in Figure 3, the delivery port 8 of auxiliary cleaner and the shell side fluid outlet 5 of shell-and-tube heat exchanger 1 is connected with metal hose 10, in the shell side of shell-and-tube heat exchanger 1, added the cleaning fluid of 70-80 DEG C by the water supplement port 7 of auxiliary cleaner, and stop adding cleaning fluid when cleaning fluid is overflowed in the shell-side fluid import 4 of shell-and-tube heat exchanger 1; The composition of cleaning fluid is configured to (in mass): formic acid 81%, water 17%, buffer 1.2%, surfactant 0.8%;
(3) start ultrasonic generator 9, controlling Ultrasonic Cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz ~ 50kHz, carries out Ultrasonic Cleaning;
(4) clean after 10-30 minute, disconnect the connection of metal hose 10 and auxiliary cleaner delivery port 8, the soiling solution in blow-down pipe shell heat exchanger 1, the delivery port 8 of connection metal flexible pipe 10 and auxiliary cleaner again after emptying, repeat step (1) to (4), carry out 2-5 cleaning;
(5) after cleaning terminates, check the tube bank 3 of shell-and-tube heat exchanger 1, confirm cleaning performance, as confirmed to clean up, then remove auxiliary cleaner, reinstall the shell-and-tube heat exchanger end cap 2 dismantled, recover the operation of shell-and-tube heat exchanger 1.
Claims (3)
1. a method for Ultrasonic Cleaning shell-and-tube heat exchanger, is characterized in that, comprises the steps:
(1) end cap of shell-and-tube heat exchanger side is removed, in former end cap position, auxiliary cleaner is installed; Described auxiliary cleaner comprises casing, and the top of described casing is provided with water supplement port, bottom is provided with delivery port, and casing is fixed with ultrasonic generator;
(2) with the delivery port of connection by metal hose auxiliary cleaner and the shell side fluid outlet of shell-and-tube heat exchanger, in the shell side of shell-and-tube heat exchanger, added the cleaning fluid of 70-80 DEG C by the water supplement port of auxiliary cleaner, and stop adding cleaning fluid when cleaning fluid is overflowed in the shell-side fluid import of shell-and-tube heat exchanger;
(3) start ultrasonic generator, controlling Ultrasonic Cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz ~ 50kHz, carries out Ultrasonic Cleaning;
(4) clean after 10-30 minute, disconnect the connection of metal hose and auxiliary cleaner delivery port, the soiling solution in blow-down pipe shell heat exchanger, is connected metal hose with the delivery port of auxiliary cleaner after emptying again, repeat step (1) to (4), repeatedly clean;
(5) after cleaning terminates, check the tube bank of shell-and-tube heat exchanger, confirm cleaning performance, as confirmed to clean up, then remove auxiliary cleaner, reinstall the shell-and-tube heat exchanger end cap dismantled, recover the operation of shell-and-tube heat exchanger.
2. the method for a kind of Ultrasonic Cleaning shell-and-tube heat exchanger according to claim 1, is characterized in that, in step (2), the composition of described cleaning fluid is configured to: formic acid 81%, water 17%, buffer 1.2%, surfactant 0.8%.
3. the method for a kind of Ultrasonic Cleaning shell-and-tube heat exchanger according to claim 1, is characterized in that, in step (4), carries out 2-5 cleaning continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701966.8A CN104596351B (en) | 2014-11-28 | 2014-11-28 | A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701966.8A CN104596351B (en) | 2014-11-28 | 2014-11-28 | A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
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| CN104596351A true CN104596351A (en) | 2015-05-06 |
| CN104596351B CN104596351B (en) | 2016-08-24 |
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| CN201410701966.8A Active CN104596351B (en) | 2014-11-28 | 2014-11-28 | A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990763A (en) * | 2017-11-10 | 2018-05-04 | 淮阴工学院 | Heat exchanger for cinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290778B1 (en) * | 1998-08-12 | 2001-09-18 | Hudson Technologies, Inc. | Method and apparatus for sonic cleaning of heat exchangers |
| CN1369053A (en) * | 1999-07-14 | 2002-09-11 | 控制工程学公司 | Ultrosonic cleaning method |
| CN101275814A (en) * | 2008-04-11 | 2008-10-01 | 大连理工大学 | Soaking type acoustic cavitation sewage water heat exchanger |
| CN102939171A (en) * | 2009-12-22 | 2013-02-20 | W·L·菲利普斯 | Apparatus for cleaning industrial components |
| CN202793087U (en) * | 2012-09-20 | 2013-03-13 | 哈尔滨商业大学 | Enhanced heat-exchange shell-tube heat exchanger for anti-fouling and descaling by ultrasonic wave |
-
2014
- 2014-11-28 CN CN201410701966.8A patent/CN104596351B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290778B1 (en) * | 1998-08-12 | 2001-09-18 | Hudson Technologies, Inc. | Method and apparatus for sonic cleaning of heat exchangers |
| CN1369053A (en) * | 1999-07-14 | 2002-09-11 | 控制工程学公司 | Ultrosonic cleaning method |
| CN101275814A (en) * | 2008-04-11 | 2008-10-01 | 大连理工大学 | Soaking type acoustic cavitation sewage water heat exchanger |
| CN102939171A (en) * | 2009-12-22 | 2013-02-20 | W·L·菲利普斯 | Apparatus for cleaning industrial components |
| CN202793087U (en) * | 2012-09-20 | 2013-03-13 | 哈尔滨商业大学 | Enhanced heat-exchange shell-tube heat exchanger for anti-fouling and descaling by ultrasonic wave |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990763A (en) * | 2017-11-10 | 2018-05-04 | 淮阴工学院 | Heat exchanger for cinder |
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| CN104596351B (en) | 2016-08-24 |
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