CN104596351B - A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger - Google Patents
A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger Download PDFInfo
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- CN104596351B CN104596351B CN201410701966.8A CN201410701966A CN104596351B CN 104596351 B CN104596351 B CN 104596351B CN 201410701966 A CN201410701966 A CN 201410701966A CN 104596351 B CN104596351 B CN 104596351B
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Abstract
A kind of method that the invention provides ultrasonic waves for cleaning shell-and-tube heat exchanger, mainly comprises the steps: that the end cap of shell-and-tube heat exchanger side is removed by (1), installs auxiliary cleaner in former end cap position；(2) with outlet and the shell side fluid outlet of shell-and-tube heat exchanger of connection by metal hose auxiliary cleaner, in the shell side of shell-and-tube heat exchanger, cleanout fluid is added by the water supplement port of auxiliary cleaner；(3) start ultrasonic generator, carry out ultrasonic waves for cleaning；(4) after cleaning 10 30 minutes, the soiling solution in blow-down pipe shell heat exchanger, repeat to be cleaned multiple times, confirm to clean up.Cleaning efficiency of the present invention is high and cleaning performance is good, greatly reduces conventional clean mode simultaneously and causes the problem of mechanical wear, high pressure abrasion tube bank, extends equipment life.
Description
Technical field
The invention belongs to metallurgical equipment maintenance technology field, a kind of method relating to ultrasonic waves for 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, such as greasy dirt, grease, dust, rust etc., the heat transfer effect of shell-and-tube heat exchanger can be affected, make specific refrigerating effect decline.Therefore, routine cleaning is the important step that shell-and-tube heat exchanger is safeguarded, the quality of cleaning performance directly influences the technological parameter of shell-and-tube heat exchanger.For a long time, the cleaning of shell-and-tube heat exchanger mainly uses cleanout fluid manual cleaning, specifically use high-temperature-hot-water to soak and rinse and the method for machinery dredging, but the strong adhesion due to greasy dirt, the effect cleaned is not ideal, and mechanical chipping can wear and tear tube bank, cause equipment loss, severe patient even damage equipment.
Summary of the invention
Present invention aims to the problem that prior art exists, it is provided that a kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger, the method cleaning efficiency is high and cleaning performance is good.
To this end, the present invention adopts the following technical scheme that
A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger, comprises the steps:
(1) end cap of shell-and-tube heat exchanger side is removed, auxiliary cleaner is installed in former end cap position；Described auxiliary cleaner includes casing, and the top of described casing is provided with water supplement port, bottom is provided with outlet, and casing is fixed with ultrasonic generator；
(2) with outlet and the shell side fluid outlet of shell-and-tube heat exchanger of connection by metal hose auxiliary cleaner, in the shell side of shell-and-tube heat exchanger, added the cleanout fluid of 70-80 DEG C by the water supplement port of auxiliary cleaner, and stop adding cleanout fluid when cleanout fluid is overflowed in the shell-side fluid import of shell-and-tube heat exchanger；
(3) starting ultrasonic generator, controlling ultrasonic waves for cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz～50kHz, carries out ultrasonic waves for cleaning；
(4) after cleaning 10-30 minute, disconnect the connection of metal hose and auxiliary cleaner outlet, the soiling solution in blow-down pipe shell heat exchanger, again metal hose is connected with the outlet of auxiliary cleaner after emptying, repetition step (1), to (4), is cleaned multiple times；
(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 cleanout fluid is configured to: formic acid 81%, water 17%, buffer agent 1.2%, surfactant 0.8%.
Further, in step (4), it is carried out continuously 2-5 cleaning.
In the present invention, the ultrasonic wave acoustic energy that ultrasonic generator produces can be converted into mechanical vibration by auxiliary cleaner, and by the outer wall of auxiliary cleaner by the cleanout fluid in Ultrasonic Radiation to shell-and-tube heat exchanger.Owing to being radiated by ultrasound wave, the microbubble in cleanout fluid is enable to keep vibration under the effect of sound wave, destroy the absorption of dirt and tube bank surface, the fatigue rupture of crud layer is caused to be stripped, tube bank surface is cleaned by the vibration of the gaseous type bubble by producing because of ultrasound wave repeatedly simultaneously so that the tube bank of shell-and-tube heat exchanger can obtain thorough Rapid Cleaning.
The beneficial effects of the present invention is: cleaning efficiency is high, significantly reduce the labor intensity that shell-and-tube heat exchanger cleans, and cleaning process cleans, environmental protection；Cleaning performance is good, and the normal operating parameters requirement of shell-and-tube heat exchanger has been effectively ensured；Use ultrasonic waves for cleaning, also greatly reduce conventional clean mode and cause the problem of mechanical wear, high pressure abrasion 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 waves for cleaning shell-and-tube heat exchanger of the present invention；
In figure, 1-shell-and-tube heat exchanger, 2-end cap, 3-restrains, 4-shell-side fluid import, 5-shell side fluid outlet, 6-casing, 7-water supplement port, 8-outlet, 9-ultrasonic generator, 10-metal hose.
Detailed description of the invention
A kind of method of ultrasonic waves for cleaning shell-and-tube heat exchanger, comprises the steps:
(1) shell-and-tube heat exchanger 1(structure is seen Fig. 1) one side end cap remove, former end cap position install auxiliary cleaner；As in figure 2 it is shown, described auxiliary cleaner includes casing 6, the top of casing 6 is provided with water supplement port 7, bottom is provided with outlet 8, and casing 6 is fixed with ultrasonic generator 9；
(2) as shown in Figure 3, outlet 8 and the shell side fluid outlet 5 of shell-and-tube heat exchanger 1 of auxiliary cleaner is connected with metal hose 10, in the shell side of shell-and-tube heat exchanger 1, added the cleanout fluid of 70-80 DEG C by the water supplement port 7 of auxiliary cleaner, and stop when cleanout fluid is overflowed in the shell-side fluid import 4 of shell-and-tube heat exchanger 1 adding cleanout fluid；The composition of cleanout fluid is configured to (in mass): formic acid 81%, water 17%, buffer agent 1.2%, surfactant 0.8%；
(3) starting ultrasonic generator 9, controlling ultrasonic waves for cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz～50kHz, carries out ultrasonic waves for cleaning；
(4) after cleaning 10-30 minute, disconnect the connection of metal hose 10 and auxiliary cleaner outlet 8, the soiling solution in blow-down pipe shell heat exchanger 1, after emptying, reconnect the outlet 8 of metal hose 10 and auxiliary cleaner, repetition step (1), to (4), carries out 2-5 time and cleans；
(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. the method for a ultrasonic waves for cleaning shell-and-tube heat exchanger, it is characterised in that comprise the steps:
(1) end cap of shell-and-tube heat exchanger side is removed, auxiliary cleaner is installed in former end cap position；Described auxiliary cleaner includes casing, and the top of described casing is provided with water supplement port, bottom is provided with outlet, and casing is fixed with ultrasonic generator；
(2) with outlet and the shell side fluid outlet of shell-and-tube heat exchanger of connection by metal hose auxiliary cleaner, in the shell side of shell-and-tube heat exchanger, added the cleanout fluid of 70-80 DEG C by the water supplement port of auxiliary cleaner, and stop adding cleanout fluid when cleanout fluid is overflowed in the shell-side fluid import of shell-and-tube heat exchanger；
(3) starting ultrasonic generator, controlling ultrasonic waves for cleaning power is 0.40W/cm-0.80W/cm, and cleaning frequency is 16kHz～50kHz, carries out ultrasonic waves for cleaning；
(4) after cleaning 10-30 minute, disconnect the connection of metal hose and auxiliary cleaner outlet, the soiling solution in blow-down pipe shell heat exchanger, again metal hose is connected with the outlet of auxiliary cleaner after emptying, repetition step (1), to (4), is cleaned multiple times；
(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.
The method of a kind of ultrasonic waves for cleaning shell-and-tube heat exchanger the most according to claim 1, it is characterised in that in step (2), in mass, the composition of described cleanout fluid is configured to: formic acid 81%, water 17%, buffer agent 1.2%, surfactant 0.8%.
The method of a kind of ultrasonic waves for cleaning shell-and-tube heat exchanger the most according to claim 1, it is characterised in that in step (4), is carried out continuously 2-5 cleaning.
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN104596351A CN104596351A (en) | 2015-05-06 |
| CN104596351B true CN104596351B (en) | 2016-08-24 |
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| 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 |
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| CN104596351A (en) | 2015-05-06 |
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