CN104089523A - Method for cleaning surface scale on heat exchanger tube bundles online - Google Patents
Method for cleaning surface scale on heat exchanger tube bundles online Download PDFInfo
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- CN104089523A CN104089523A CN201410292191.3A CN201410292191A CN104089523A CN 104089523 A CN104089523 A CN 104089523A CN 201410292191 A CN201410292191 A CN 201410292191A CN 104089523 A CN104089523 A CN 104089523A
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- heat exchanger
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- dirt
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Abstract
The invention relates to a method for cleaning surface scale on heat exchanger tube bundles online. The method includes: charging agent capable of cleaning dirt into a container, connecting the container with a circulating water inlet tube of a heat exchanger through a pipeline, using a pump to deliver the agent into the circulating water inlet tube, and controlling concentration of the agent to be added, according to cleaning capacity of the agent and amount of circulating water; allowing mixture of the agent and the circulating water to enter the shell side of the heat exchanger so as to strip the dirt when the agent flows by the outer walls of the heat exchanger tube bundles and fins arranged on the outsides of the heat exchange tube bundles, along with the circulating water of the heat exchanger. The method has the advantages that the dirt of the heat exchanger can be cleaned without interrupting normal production, input cost is low, fewer facilities are required, the method is economical and practical, the method has low requirements on environmental conditions, and the service conditions are easy to satisfy.
Description
Technical field
The present invention relates to a kind of method of removing Surface of Carbon Steel Exchanger dirt, be specially a kind of can be without stopping the method that heat exchanger operation can the fouling of on-line cleaning Surface of Carbon Steel Exchanger.
Background technology
At present, domestic each enterprise saves and utilizes the consciousness of resource very strong, utilizes water resource in order to save, and most of enterprise has all set up the water circulation utilization system of heat exchanger, by each heat exchanger heat exchange with after water again collect, cooling, then for each heat exchanger heat exchange.Building up of circulating water device comes into operation, and played extraordinary effect to saving, reuse water resource.
But water circulation use also has the counter productive that is difficult to avoid, in factory, make at present water make the heat exchanger of cooling agent very general and of a great variety, use occasion and each variant, heat exchanger, in use due to the existence of the factors such as operation environment, service life, workmanship, faulty operation, causes heat exchanger leakage to become the problem often occurring in production.In order to protect and the medium of water heat exchange; or reduce, avoid and the contaminated rear impact on whole production system and equipment in service of medium of water heat exchange; general selection will be higher than the pressure of water with the pressure of water heat transferring medium; once there is the situation of leaking in heat exchanger; will enter in water with the medium of water heat exchange, pollute for whole circulation.
If bled, recirculated water is that ammonia nitrogen class material or other organic matters will make recirculated water eutrophication, and more microorganism, algae, glutinous mud are produced.While there is above-mentioned situation, recycled-water quality control department can adopt some necessary means to be controlled the water quality of circulation conventionally.But be unlikely to immediately to make a big impact to producing owing to often can running into aborning heat exchanger leakage amount, and recycled-water quality situation about still can control.In order not affect production efficiency, factory generally can not stop heat-exchanger rig and move to eliminate the situation of single heat exchanger leakage immediately.Now due to the leakage of heat exchanger, recycled-water quality or in poor situation, wants many when the amount of microorganism, algae or glutinous mud that recirculated water eutrophication produces also can be normal compared with water quality.As cleaning not in time, to pass in time, algae, the glutinous mud of generation circulate in circulation, can produce dirt deposition in heat exchange equipment water side.Especially shell side is walked some tube bundle heat exchangers of recirculated water, the particularly outer tube bundle heat exchanger that is also added with heat exchange fin of some pipes, because water is slow in shell side overall flow, tube bank gap or tube-bundle fins gap more easily produce deposition and stop up, and its heat exchange efficiency is significantly declined.
In the time that above-mentioned situation occurs, even if stop heat-exchanger rig operation, manually adopt physical method cleaning also can only clear up the surperficial dirt of outer tube bank, cannot well clear up because gap is too little for the dirt in the dirt of inner tube interfascicular, particularly fin.And now adopt chemical method to clear up, and have certain effect, but need breaks in production, need specialized company to process or to provide for oneself cleaning equipment cleaning simultaneously, consuming time longer, cost is also higher.
Summary of the invention
It is a kind of simple to operate, economical and practical that the technical problem to be solved in the present invention is to provide, and moves without stopping heat exchanger the method that gets final product the fouling of on-line cleaning Surface of Carbon Steel Exchanger.
For addressing the above problem, the invention provides the method for a kind of on-line cleaning Surface of Carbon Steel Exchanger fouling, choosing the medicament that can take out stains is loaded in a container, by pipeline, this container is connected with the recirculated water inlet tube of heat exchanger, drug delivery is entered in recirculated water inlet tube with pump, and according to the concentration of the dirty removal capacities of medicament and medicament that water circulation control adds; Medicament enters heat exchanger shell pass after mixing with recirculated water, and described medicament can be peeled off dirt when the fin outside heat exchanger tube outer wall and heat exchanger tube with heat exchanger circulating water flow.
Concrete, described medicament can be chosen dispersant.
Concrete, described medicament enters circulating water pipe and completes after scale removal without discharge, and medicament can keep circulating in circulation, prevents new dirt generation.
Beneficial effect of the present invention is:
1, this method can be cleared up by dirt that heat exchanger is tied under the situation of not interrupting normal production.
2, this method input cost is low, and required facility is few, economical and practical.
3, this method is lower to environment for use conditional request, and service condition easily meets.
Detailed description of the invention
The present invention is the method for a kind of on-line cleaning Surface of Carbon Steel Exchanger fouling, concrete steps are: dispersant is loaded in a container, by pipeline, this container is connected with the recirculated water inlet tube of heat exchanger, drug delivery is entered in recirculated water inlet tube with pump, and according to the concentration of the dirty removal capacities of dispersant and dispersant that water circulation control adds; Dispersant enters after heat exchanger shell pass after mixing with recirculated water, when fin with heat exchanger circulating water flow outside heat exchanger tube outer wall and heat exchanger tube, can peel off dirt.Finally, after dispersant enters circulating water pipe to complete scale removal, without discharge, medicament can keep circulating in circulation, can prevent new dirt to produce.
The above; only for the better detailed description of the invention of the present invention, but protection domain of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore protection domain of the present invention is as the criterion with the protection domain of claims.
Claims (3)
1. the method for on-line cleaning Surface of Carbon Steel Exchanger fouling, it is characterized in that: choose the medicament that can take out stains and be loaded in a container, by pipeline, this container is connected with the recirculated water inlet tube of heat exchanger, drug delivery is entered in recirculated water inlet tube with pump, and according to the concentration of the dirty removal capacities of medicament and medicament that water circulation control adds; Medicament enters heat exchanger shell pass after mixing with recirculated water, and described medicament can be peeled off dirt when the fin outside heat exchanger tube outer wall and heat exchanger tube with heat exchanger circulating water flow.
2. the method for a kind of on-line cleaning Surface of Carbon Steel Exchanger as claimed in claim 1 fouling, is characterized in that described medicament is dispersant.
3. the method for a kind of on-line cleaning Surface of Carbon Steel Exchanger as claimed in claim 1 fouling, is characterized in that described medicament enters circulating water pipe and completes after scale removal without discharge, and medicament can keep circulating in circulation, prevents new dirt to produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292191.3A CN104089523A (en) | 2014-06-26 | 2014-06-26 | Method for cleaning surface scale on heat exchanger tube bundles online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292191.3A CN104089523A (en) | 2014-06-26 | 2014-06-26 | Method for cleaning surface scale on heat exchanger tube bundles online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104089523A true CN104089523A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410292191.3A Pending CN104089523A (en) | 2014-06-26 | 2014-06-26 | Method for cleaning surface scale on heat exchanger tube bundles online |
Country Status (1)
| Country | Link |
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| CN (1) | CN104089523A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860403A (en) * | 2015-04-28 | 2015-08-26 | 陕西凯利清洗有限公司 | Liquid medicine for online cleaning of air separation workshop appliances and application method thereof |
| CN112393531A (en) * | 2019-08-13 | 2021-02-23 | 蓝孚医疗科技（山东）有限公司 | Scale cleaning method for fin of plate heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301604A (en) * | 1999-12-30 | 2001-07-04 | 沈伟安 | Cleaning method for central air conditioner |
| CN101221027A (en) * | 2008-01-23 | 2008-07-16 | 清华大学 | In-position cleaning method for town regenerated water plate type heat exchanger |
| JP4171329B2 (en) * | 2003-03-19 | 2008-10-22 | 株式会社荏原製作所 | Scale cleaner |
| CN101871745A (en) * | 2010-06-24 | 2010-10-27 | 瓮福（集团）有限责任公司 | Sulphuric acid plant liquid and liquid heat exchanger on-line cleaning method |
| CN201885634U (en) * | 2011-03-02 | 2011-06-29 | 特变电工新疆硅业有限公司 | Automatic cleaning device for plate-type heat exchanger |
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
-
2014
- 2014-06-26 CN CN201410292191.3A patent/CN104089523A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301604A (en) * | 1999-12-30 | 2001-07-04 | 沈伟安 | Cleaning method for central air conditioner |
| JP4171329B2 (en) * | 2003-03-19 | 2008-10-22 | 株式会社荏原製作所 | Scale cleaner |
| CN101221027A (en) * | 2008-01-23 | 2008-07-16 | 清华大学 | In-position cleaning method for town regenerated water plate type heat exchanger |
| CN101871745A (en) * | 2010-06-24 | 2010-10-27 | 瓮福（集团）有限责任公司 | Sulphuric acid plant liquid and liquid heat exchanger on-line cleaning method |
| CN201885634U (en) * | 2011-03-02 | 2011-06-29 | 特变电工新疆硅业有限公司 | Automatic cleaning device for plate-type heat exchanger |
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860403A (en) * | 2015-04-28 | 2015-08-26 | 陕西凯利清洗有限公司 | Liquid medicine for online cleaning of air separation workshop appliances and application method thereof |
| CN112393531A (en) * | 2019-08-13 | 2021-02-23 | 蓝孚医疗科技（山东）有限公司 | Scale cleaning method for fin of plate heat exchanger |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |