CN101892489A - Cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system and preparation method thereof - Google Patents

Cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system and preparation method thereof Download PDF

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Publication number
CN101892489A
CN101892489A CN 201010237072 CN201010237072A CN101892489A CN 101892489 A CN101892489 A CN 101892489A CN 201010237072 CN201010237072 CN 201010237072 CN 201010237072 A CN201010237072 A CN 201010237072A CN 101892489 A CN101892489 A CN 101892489A
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acid
cleaning
cleaning agent
heat exchanger
flue dust
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CN 201010237072
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Chinese (zh)
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CN101892489B (en
Inventor
贺光辉
张铭
郭德华
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广州唯普电力科技有限公司
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Abstract

The invention discloses a cleaning agent for flue dust scale on the surface of a gas heat exchanger of a gas desulfurization system and a preparation method thereof. The cleaning agent is characterized by comprising the following components in percentage by mass: 5 to 25 percent of main cleaning agent, 3 to 15 percent of auxiliary cleaning agent, 2 to 10 percent of release agent, 2 to 8 percent of corrosion inhibitor, and the balance water, wherein the main cleaning agent is one or two of nitric acid, hydrochloric acid and sulfuric acid; the auxiliary cleaning agent is more than one of methanoic acid, acetic acid, ethylene diamine tetraacetic acid, sulfamic acid, glycollic acid, oxalic acid and hydroxyethylidene diphosphonic acid; the release agent is one of dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzyl ammonium chloride and distearyl dimethyl ammonium chloride; and the corrosion inhibitor is pickling inhibitor. The cleaning agent can realize online cleaning at normal temperature, complete scale removal, short cleaning time, lower cleaning cost and no corrosion to enamel on the surface of a heat exchange element.

Description

Cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system and preparation method thereof

Technical field

The present invention relates to a kind of clean-out system, particularly a kind of clean-out system that is used for cleaning the gas-gas heat exchanger surface flue dust incrustation that the coal-fired unit desulfurization method of limestone-gypsum of large-scale power system is provided with.

Background technology

Coal fired power generation remains one of main mode of China's electrical production at present, the coal-fired unit of present Chinese large-sized electric power, desulfurization method of limestone-gypsum system more than 90% all is provided with gas-gas heat exchanger (being called for short GGH), GGH is the expensive equipment of the height except that the absorption tower, and can whether its state normally is related to flue gas desulphurization system steady running.In the desulphurization system that has put into operation, through use after a while, will occur that the GGH severe deposits is stopped up, heat exchange efficiency is poor, pressure reduction is far above problems such as design loads, the desulphurization system of having to stop transport is carried out cleaning.And along with the raising that country requires the environmental protection generating, the operational percentage examination of desulphurization system requires more and more stricter, and GGH cleaning and descaling timely and effectively is just necessary.Existing GGH cleans incrustation and generally takes two kinds of methods:

One, hyperpressure water washing out method

Adopt present high pressure water cleaning technique, after closing down GGH, wash incrustation with the hyperpressure water more than the 50MPa with manual type.

Two, " two-step approach " chemical cleaning method

This method is during the sweetener overhaul, all pulls down the GGH heat exchange element, adopts " two-step approach " of conventional needle to the indissoluble dirt, the chemical cleaning method of pickling after the promptly first soda boiling.

In above-mentioned two kinds of methods, ultra-high voltage waterpower washing out method exists: 1) may damage GGH heat exchange element surface enamel; 2) there is potential safety hazard in operator; 3) can not remove GGH incrustation completely; 4) reduce shortcomings such as differential pressure is limited in one's ability.And " two-step approach " is though chemical cleaning method cleans relatively more thorough but existence: 1) scavenging period is long, generally needs about 20 days; 2) maintenance workload is big, and all GGH heat exchange elements need artificial dismounting; 3) technology is loaded down with trivial details, and soda boiling needs steam heating; 4) the high shortcoming of cleaning charge.As seen, existing purging method can not satisfy the needs of the timely and effective cleaning of GGH surface flue dust incrustation.

Summary of the invention

The objective of the invention is to overcome the shortcoming of prior art, a kind of dismounting GGH heat exchange element that do not need is provided, GGH surface flue dust incrustation clean-out system easy to use, that the cleaning required time is short and effective and preparation method thereof.

For reaching above-mentioned purpose, the present invention adopts following technical scheme: a kind of cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system, it is characterized in that, it is made by cleaning host, cleaning additive, stripper, inhibiter reaction, described set of dispense specific mass percentage composition is: cleaning host 5~25%, cleaning additive 3~15%, stripper 2~10%, inhibiter 2~8%, surplus are water; Described cleaning host is meant one or both in nitric acid, hydrochloric acid and the sulfuric acid; Cleaning additive is meant more than one in formic acid, acetate, ethylenediamine tetraacetic acid (EDTA), thionamic acid, oxyacetic acid, oxalic acid and the 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Stripper is meant a kind of in dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzyl ammonium chloride and the chlorination dimethyl dioctadecyl ammonium; Inhibiter is meant restrainer.

Described restrainer is meant multifunctional acid pickling inhibitor or hydrochloric acid pickling corrosion inhibitor.

The preparation method of above-mentioned cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system is characterized in that, comprises the steps:

The first step, will clean host, cleaning additive, stripper, inhibiter and water and dispose by following mass percent: cleaning host 5~25%, cleaning additive 3~15%, stripper 2~10%, inhibiter 2~8%, surplus is a water;

In second step, the raw material that the first step is configured stirs at normal temperatures and pressures, promptly gets cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system.

Clean-out system of the present invention uses mineral acid as cleaning host, uses organic acid as a supplement, and the control of stripper concentration is very important, and the three ties in, and can soften, clean the indissoluble incrustation of removing on the GGH very effectively; Use inhibiter, the equipment of heat exchanging element and cleaning system plays a protective role, and guarantees that erosion rate meets the chemical cleaning technique requirement.

Clean-out system of the present invention is work like this: clean-out system of the present invention is injected spray equipment, and circulated sprinkling gets final product to GGH heat exchange element surface, and about 8 hours of single scavenging period adopts the flushing of 10MPa pressure water to get final product at last.

Clean-out system of the present invention possesses following outstanding advantage and effect with respect to prior art:

1, adopt clean-out system of the present invention, after just can being implemented in desulfurization GGH and stopping transport, on-line cleaning under the normal temperature need not to dismantle the GGH heat exchange element, and cleaning and descaling is thorough, and scavenging period is short, generally only needs about 4 days, and cleaning charge is lower;

2, adopt clean-out system of the present invention, cleaning is simple, need not heating, need not soda boiling, and GGH heat exchange element surface enamel is not had corrosion;

3, the starting material of preparation clean-out system employing of the present invention are industrial chemicals commonly used, and preparation technology is simple, and production cost is low, and is effective.

Embodiment

The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.

Embodiment one

The first step, by following quality percentage composition component configuration raw material:

Cleaning host 5%, employing mass percent concentration are 68% nitric acid;

Cleaning additive 3%, adopting mass percent concentration is 90% formic acid;

Stripper 2% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 2%, the multifunctional acid pickling inhibitor (Lan826) that adopts sky, Lanzhou China chemical research institute to produce;

Surplus is a water;

In second step, the raw material that the first step is disposed stirs at normal temperatures and pressures, promptly gets cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system.

Embodiment two

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 15%, employing mass percent concentration are 31% hydrochloric acid;

Cleaning additive 10%, employing mass percent concentration are 99% acetate;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium chloride;

Inhibiter 5%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment three

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 25%, employing mass percent concentration are 98% sulfuric acid;

Cleaning additive 15%, employing mass percent concentration are 99% ethylenediamine tetraacetic acid (EDTA);

Stripper 10% adopts the chlorination dimethyl dioctadecyl ammonium;

Inhibiter 8%, the hydrochloric acid pickling corrosion inhibitor (IS129) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment four

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 10%, the sulfuric acid and the mixed in hydrochloric acid of quality such as employing, sulfuric acid employing mass percent concentration is 98% sulfuric acid, hydrochloric acid employing mass percent concentration is 31% hydrochloric acid;

Cleaning additive 8%, employing mass percent concentration are 99.5% thionamic acid;

Stripper 5% adopts the chlorination dimethyl dioctadecyl ammonium;

Inhibiter 6%, the hydrochloric acid pickling corrosion inhibitor (IS129) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment five

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, the sulfuric acid of quality such as employing and nitric acid mix, and sulfuric acid employing mass percent concentration is 98% sulfuric acid, and nitric acid employing mass percent concentration is 68% nitric acid;

Cleaning additive 5%, employing mass percent concentration are 70% oxyacetic acid;

Stripper 4% adopts dodecyl dimethyl benzyl ammonium chloride;

Inhibiter 3%, the hydrochloric acid pickling corrosion inhibitor (IS129) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment six

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 18%, the hydrochloric acid of quality such as employing and nitric acid mix, and hydrochloric acid employing mass percent concentration is 31% sulfuric acid, and nitric acid employing mass percent concentration is 68% nitric acid;

Cleaning additive 10%, employing mass percent concentration are 99.6% oxalic acid;

Stripper 5% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 3%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment seven

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, employing mass ratio are that 1: 2 hydrochloric acid and nitric acid mixes, and hydrochloric acid employing mass percent concentration is 31% hydrochloric acid, and nitric acid employing mass percent concentration is 68% nitric acid;

Cleaning additive 12%, employing mass percent concentration are 50% 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 7%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment eight

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, employing mass ratio are that 1: 2 hydrochloric acid and sulfuric acid mixes, and hydrochloric acid employing mass percent concentration is 31% hydrochloric acid, and sulfuric acid employing mass percent concentration is 98% sulfuric acid;

Cleaning additive 12%, adopting mass ratio is 1: 1: 1: 1: 1: 1: 1 formic acid, acetate, ethylenediamine tetraacetic acid (EDTA), thionamic acid, oxyacetic acid, oxalic acid and 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid were mixed mutually;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 7%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment nine

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, employing mass ratio are that 1: 2 hydrochloric acid and sulfuric acid mixes, and hydrochloric acid employing mass percent concentration is 31% hydrochloric acid, and sulfuric acid employing mass percent concentration is 98% sulfuric acid;

Cleaning additive 12%, adopting mass ratio is that 1: 2: 1 formic acid, acetate, ethylenediamine tetraacetic acid (EDTA) mix mutually;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 7%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment ten

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, employing mass ratio are that 1: 2 hydrochloric acid and sulfuric acid mixes, and hydrochloric acid employing mass percent concentration is 31% hydrochloric acid, and sulfuric acid employing mass percent concentration is 98% sulfuric acid;

Cleaning additive 12%, employing mass ratio are that 2: 1: 1 oxyacetic acid, oxalic acid and 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid mixed mutually;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 7%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

Embodiment 11

Prepare cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system with reference to embodiment one step by following quality percentage composition set of dispense ratio:

Cleaning host 20%, employing mass ratio are that 1: 2 hydrochloric acid and sulfuric acid mixes, and hydrochloric acid employing mass percent concentration is 31% hydrochloric acid, and sulfuric acid employing mass percent concentration is 98% sulfuric acid;

Cleaning additive 12%, employing mass ratio are that 1: 3 formic acid mixes mutually with thionamic acid;

Stripper 8% adopts dodecyl dimethyl benzyl ammonium bromide;

Inhibiter 7%, the multifunctional acid pickling inhibitor (IS139) that adopts petrochemical complex studying and designing institute, Shaanxi to produce;

Surplus is a water.

The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (3)

1. cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system, it is characterized in that, it is made by cleaning host, cleaning additive, stripper, inhibiter reaction, described set of dispense specific mass percentage composition is: cleaning host 5~25%, cleaning additive 3~15%, stripper 2~10%, inhibiter 2~8%, surplus is a water; Described cleaning host is meant one or both in nitric acid, hydrochloric acid and the sulfuric acid; Cleaning additive is meant more than one in formic acid, acetate, ethylenediamine tetraacetic acid (EDTA), thionamic acid, oxyacetic acid, oxalic acid and the 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Stripper is meant a kind of in dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzyl ammonium chloride and the chlorination dimethyl dioctadecyl ammonium; Inhibiter is meant restrainer.
2. cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system according to claim 1 is characterized in that described restrainer is meant multifunctional acid pickling inhibitor or hydrochloric acid pickling corrosion inhibitor.
3. the preparation method of claim 1 or 2 described cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system is characterized in that, comprises the steps:
The first step, will clean host, cleaning additive, stripper, inhibiter and water and dispose by following mass percent: cleaning host 5~25%, cleaning additive 3~15%, stripper 2~10%, inhibiter 2~8%, surplus is a water;
In second step, the raw material that the first step is configured stirs at normal temperatures and pressures, promptly gets cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system.
CN201010237072XA 2010-07-23 2010-07-23 Cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system and preparation method thereof CN101892489B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103361658A (en) * 2013-07-29 2013-10-23 宜昌江峡船用机械有限责任公司 Method for removing screw hole corrosion
CN103468420A (en) * 2013-08-20 2013-12-25 李从波 Weak acid cleaner and application thereof to removal of GGH (gas-gas heater) hard scale
CN104233329A (en) * 2014-09-15 2014-12-24 河北省科学院能源研究所 Chemical cleaning method of heat exchanger
CN105016629A (en) * 2015-08-05 2015-11-04 福耀玻璃工业集团股份有限公司 Pickling solution for washing silicate glass plate and method for washing silicate glass plate through pickling solution
CN105200442A (en) * 2014-11-29 2015-12-30 董亚伦 Boiler detergent
CN105821424A (en) * 2016-05-30 2016-08-03 江阴市亚龙换热设备有限公司 Cleaning method of stainless steel plate heat exchanger
CN106190649A (en) * 2016-07-11 2016-12-07 广州安达净水材料有限公司 A kind of method that cleanout fluid and cleaning PCB thereof move back molten tin bath
CN110360870A (en) * 2019-07-11 2019-10-22 陈龙 A kind of cleaning method of rotary regenerative air preheater

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1166538A (en) * 1997-03-07 1997-12-03 沈阳市巨龙防腐技术研究所 Normal-temp copper pickling corrosion inhibitor
JP2000038689A (en) * 1998-07-24 2000-02-08 Asahi Kagaku Kogyo Co Ltd Corrosion inhibitor for acid cleaning of metal, cleaning solution composition containing the same and method for cleaning of metal using the same
CN1436740A (en) * 2002-02-07 2003-08-20 中国石油化工股份有限公司 Corrosion inhibiting method for cooling water system of production equipment in shutdown period
US20030200997A1 (en) * 2002-04-30 2003-10-30 Gill Jasbir S. Methods of simultaneously cleaning and disinfecting industrial water systems
CN1789159A (en) * 2005-12-05 2006-06-21 赵清顺 Sterilization inhibitor for circulated cooling water treatment
US7183246B2 (en) * 1999-06-02 2007-02-27 Floran Technologies Inc. Cleaning/disinfectant composition to clean surfaces
CN1978616A (en) * 2005-12-09 2007-06-13 安徽铜都特种环保设备股份有限公司 Detergent for cleaning ceramic filtering plate
US20070164258A1 (en) * 2006-01-17 2007-07-19 Johnsondiversey, Inc. Enhanced galvanized corrosion inhibitor
CN101555441A (en) * 2008-04-09 2009-10-14 中国神华能源股份有限公司 Cleaning agent and cleaning process of GGH heat exchange component
US20090320876A1 (en) * 2008-06-30 2009-12-31 Bradley Steven A Process and composition for removing a scale deposit
CN101634030A (en) * 2009-01-22 2010-01-27 湖南省湘电试验研究院有限公司 Acid-cleaning inhibiter for cleaning boiler and use method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1166538A (en) * 1997-03-07 1997-12-03 沈阳市巨龙防腐技术研究所 Normal-temp copper pickling corrosion inhibitor
JP2000038689A (en) * 1998-07-24 2000-02-08 Asahi Kagaku Kogyo Co Ltd Corrosion inhibitor for acid cleaning of metal, cleaning solution composition containing the same and method for cleaning of metal using the same
US7183246B2 (en) * 1999-06-02 2007-02-27 Floran Technologies Inc. Cleaning/disinfectant composition to clean surfaces
CN1436740A (en) * 2002-02-07 2003-08-20 中国石油化工股份有限公司 Corrosion inhibiting method for cooling water system of production equipment in shutdown period
US20030200997A1 (en) * 2002-04-30 2003-10-30 Gill Jasbir S. Methods of simultaneously cleaning and disinfecting industrial water systems
CN1789159A (en) * 2005-12-05 2006-06-21 赵清顺 Sterilization inhibitor for circulated cooling water treatment
CN1978616A (en) * 2005-12-09 2007-06-13 安徽铜都特种环保设备股份有限公司 Detergent for cleaning ceramic filtering plate
US20070164258A1 (en) * 2006-01-17 2007-07-19 Johnsondiversey, Inc. Enhanced galvanized corrosion inhibitor
CN101555441A (en) * 2008-04-09 2009-10-14 中国神华能源股份有限公司 Cleaning agent and cleaning process of GGH heat exchange component
US20090320876A1 (en) * 2008-06-30 2009-12-31 Bradley Steven A Process and composition for removing a scale deposit
CN101634030A (en) * 2009-01-22 2010-01-27 湖南省湘电试验研究院有限公司 Acid-cleaning inhibiter for cleaning boiler and use method thereof

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
《中国腐蚀与防护学报》 19941230 周明鹏,江开明,刁月民,周本省 R-N-[CH_2PO(OH)_2]_2型甲叉膦酸在硫酸溶液中的缓蚀作用 , 第04期 2 *
《化学清洗》 19970430 杨仕平 中央空调水系统的清洗 1-3 第13卷, 第02期 2 *
《清洗世界》 20080530 吴晋英等 氨基磺酸及其混合酸腐蚀性比较 , 第05期 2 *
《陕西化工》 19951230 含硫的有机缓蚀剂用于酸-碱性的金属表面清洗剂 , 第04期 2 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103361658A (en) * 2013-07-29 2013-10-23 宜昌江峡船用机械有限责任公司 Method for removing screw hole corrosion
CN103361658B (en) * 2013-07-29 2015-10-07 宜昌江峡船用机械有限责任公司 The removing method of screw corrosion
CN103468420A (en) * 2013-08-20 2013-12-25 李从波 Weak acid cleaner and application thereof to removal of GGH (gas-gas heater) hard scale
CN104233329A (en) * 2014-09-15 2014-12-24 河北省科学院能源研究所 Chemical cleaning method of heat exchanger
CN104233329B (en) * 2014-09-15 2017-04-12 河北省科学院能源研究所 Chemical cleaning method of heat exchanger
CN105200442A (en) * 2014-11-29 2015-12-30 董亚伦 Boiler detergent
CN105016629A (en) * 2015-08-05 2015-11-04 福耀玻璃工业集团股份有限公司 Pickling solution for washing silicate glass plate and method for washing silicate glass plate through pickling solution
CN105016629B (en) * 2015-08-05 2018-01-23 福耀玻璃工业集团股份有限公司 A kind of pickle and method for washing glassy silicate glass plate
CN105821424A (en) * 2016-05-30 2016-08-03 江阴市亚龙换热设备有限公司 Cleaning method of stainless steel plate heat exchanger
CN106190649A (en) * 2016-07-11 2016-12-07 广州安达净水材料有限公司 A kind of method that cleanout fluid and cleaning PCB thereof move back molten tin bath
CN106190649B (en) * 2016-07-11 2019-06-28 广州安达净水材料有限公司 A kind of method that cleaning solution and its cleaning PCB move back molten tin bath
CN110360870A (en) * 2019-07-11 2019-10-22 陈龙 A kind of cleaning method of rotary regenerative air preheater

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