CN105220164B - A kind of cleaning agent of heat supply heating system - Google Patents
A kind of cleaning agent of heat supply heating system Download PDFInfo
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- CN105220164B CN105220164B CN201510715925.9A CN201510715925A CN105220164B CN 105220164 B CN105220164 B CN 105220164B CN 201510715925 A CN201510715925 A CN 201510715925A CN 105220164 B CN105220164 B CN 105220164B
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Abstract
The invention discloses a kind of cleaning agent of heat supply heating system, it is specifically included：Sodium ethylene diamine tetracetate, thiocarbamide, the ketone of 5 chlorine, 2 methyl, 4 isothiazoline 3, natrium nitrosum, mercaptobenzothiazoler, neopelex, hexa, zinc sulfate, sodium borohydride, diethylene triamine pentamethylene phosphonic, citric acid, potassium chromate, sodium alginate, surplus are water；The invention also discloses the preparation method of above-mentioned cleaning agent.Various rust stainings, dirt and the solidfied material adhered in boiler and pipeline can thoroughly be removed using such a strong detergent, and boiler after cleaning and pipe surface can form a kind of diaphragm, reduce boiler and pipeline scale speed.The acid strong, good water solubility of the cleaning agent of the heat supply heating system of the present invention, it is non-toxic to human body, to boiler and pipeline non-corrosiveness, boiler and piping thermal efficiency can be significantly improved, and preparation technology is simple, and it is easy to operate, it is safe and reliable.
Description
Technical field
The present invention relates to a kind of cleaning agent, more particularly to a kind of cleaning agent suitable for heat supply heating system, one is further related to
The processing technology of the kind cleaning agent.
Background technology
Central heating, heating system can produce the dirts such as substantial amounts of incrustation scale and rust deposite after using the several years in system, influence
System normal operation, defined heat supply temperature requirement is even unable to reach when serious.System maintenance number is caused to rise, under efficiency
The waste of drop and the energy.Dirt in removing system is the effective way uniquely to solve the above problems.
Generally, the dirt in system is purged using boilercompound.The popular call of boilercompound removes for boiler
Dirty agent refers to removing a kind of chemical agent of boiler internal incrustation scale as its name suggests, is widely used in electric boiler scale removal, fuel oil
Clean the boiler, gas fired-boiler scale removal, coal-fired boiler descaling, boiler scale removal, hot-water boiler scale removal, heating boiler scale removal, bathing pool
Clean the boiler, steam boiler scale removal and plate type heat exchanger scale removal etc..
Hard scale is generally cemented in boiler or pipe surface.First, hard scale thermal conductivity is very poor, can cause heating surface heat transfer situation
Deteriorate, so as to waste fuel or electric power.Secondly, can also be due to expanding with heat and contract with cold with stress not if hard scale is cemented in boiler inner wall
, the danger that greatly explosion of increase boiler is even exploded.Again, when hard scale is cementing, plurality of heavy metal also can usually be adhered to
Ion, if the boiler is used to contain drinking water, have the risk that heavy metal ion is excessively dissolved in drinking water.In addition, incrustation scale shadow
Health is rung, gastrointestinal disturbances and absorption function disorder and constipation is easily caused, improves the incidence of disease of gastritis and all kinds of calculus.
Tartar, periodontitis are often caused by incrustation scale；People can be caused desperately.If Industrial Boiler pipeline blockage, booster, vaporization, quick-fried can be caused
The serious accident such as combustion and blast.
Vimala operation is greatly reduced fuel consumption by boiler after scale removal；Reduce cleaning boiler and maintenance cost；Keep away
Exempt from because of gyp and caused by the potential safety hazard such as burn into bulge, deformation, leakage or even blast；Greatly prolonged boiler makes
Use the life-span；Avoid losing caused by stopping production because of cleaning boiler or repairing.
And relatively common heat supply heating system cleaning agent can typically use hydrochloric acid or sulfuric acid etc. in the prior art, by
In hydrogen can be produced during cleaning, cause unsafe factor occur；Either boiler and its pipe-line equipment can be produced
Raw stronger corrosivity, damage is easily caused to boiler plant.
Therefore both enough avoided causing boiler and apparatus body rotten with strong acidity while and can, it is necessary to develop one kind
Erosion, the cleaning of bland to human body heat supply heating system such as boiler and its pipeline, heat exchanger with stronger cleaning force
Agent.
The content of the invention
In order to solve the above problems, the present invention provides one kind and both enough avoided causing boiler with strong acidity while and can
And the cleaning agent of the apparatus body burn into heat supply heating system with stronger cleaning force bland to human body.
To reach above-mentioned purpose, technical scheme is as follows：A kind of cleaning agent of heat supply heating system, the boiler
Cleaning agent includes the following component calculated by mass percentage：Sodium ethylene diamine tetracetate 2-5%, thiocarbamide 0.2-0.5%, 5- are chloro-
MIT 1-3%, natrium nitrosum 2-4%, mercaptobenzothiazoler 1-1.5%, DBSA
Sodium 3-5%, hexa 1-3%, zinc sulfate 0.5-1.5%, sodium borohydride 1-3%, diethylene triamine pentamethylene phosphonic
8-11%, citric acid 5-9%, potassium chromate 3-7%, sodium alginate 7-10%, surplus are water.
Preferably, the cleaning agent of above-mentioned heat supply heating system includes the following component calculated by mass percentage：Ethylenediamine
Tetraacethyl sodium 2.5-4.5%, thiocarbamide 0.25-0.45%, CMIT 1.5-2.5%, nitrous acid
Sodium 2.25-3.75%, mercaptobenzothiazoler 1.15-1.45%, neopelex 3.25-4.75%, hexa-methylene four
Amine 1.25-2.75%, zinc sulfate 0.75-1.25%, sodium borohydride 1.25-2.75%, diethylene triamine pentamethylene phosphonic 8.25-
10.25%th, citric acid 5.5-8.5%, potassium chromate 3.5-6.5%, sodium alginate 7.25-9.75%, surplus are water.
Preferably, the cleaning agent of above-mentioned heat supply heating system includes the following component calculated by mass percentage：Ethylenediamine
Tetraacethyl sodium 2.75-4.25%, thiocarbamide 0.35-0.4%, CMIT 1.75-2.25%, Asia
Sodium nitrate 2.35-3.55%, mercaptobenzothiazoler 1.25-1.4%, neopelex 3.35-4.35%, hexa-methylene
Tetramine 1.5-2.25%, zinc sulfate 0.8-1.2%, sodium borohydride 1.55-2.55%, diethylene triamine pentamethylene phosphonic 8.55-
9.75%th, citric acid 6.75-8.25%, potassium chromate 4.75-5.75%, sodium alginate 7.75-9.25%, surplus are water.
Preferably, the cleaning agent of above-mentioned heat supply heating system includes the following component calculated by mass percentage：Ethylenediamine
Tetraacethyl sodium 3.25-3.75%, thiocarbamide 0.36-0.39%, CMIT 1.8-2.2%, Asia
Sodium nitrate 2.55-3.25%, mercaptobenzothiazoler 1.3-1.35%, neopelex 3.55-4.15%, hexa-methylene
Tetramine 1.75-2.15%, zinc sulfate 0.95-1.15%, sodium borohydride 1.75-2.25%, diethylene triamine pentamethylene phosphonic
8.75-9.55%, citric acid 7.25-8.15%, potassium chromate 4.95-5.55%, sodium alginate 8.25-8.75%, surplus are water.
Preferably, the cleaning agent of above-mentioned heat supply heating system includes the following component calculated by mass percentage：Ethylenediamine
Tetraacethyl sodium 3.35%, thiocarbamide 0.36%, CMIT 1.9%, natrium nitrosum 2.65%, mercapto
Base benzothiazole 1.3%, neopelex 3.55%, hexa 1.85%, zinc sulfate 0.975%, boron hydrogen
Change sodium 1.85%, diethylene triamine pentamethylene phosphonic 8.75%, citric acid 7.35%, potassium chromate 4.975%, sodium alginate
8.35%th, surplus is water.
Preferably, the cleaning agent of above-mentioned heat supply heating system includes the following component calculated by mass percentage：Ethylenediamine
Tetraacethyl sodium 3.55%, thiocarbamide 0.39%, CMIT 2.05%, natrium nitrosum 2.75%, mercapto
Base benzothiazole 1.325%, neopelex 3.75%, hexa 2.13%, zinc sulfate 1.15%, boron hydrogen
Change sodium 2.15%, diethylene triamine pentamethylene phosphonic 9.45%, citric acid 8.05%, potassium chromate 5.35%, sodium alginate
8.55%th, surplus is water.
Present invention also offers the preparation method of the cleaning agent of above-mentioned heat supply heating system, including：
The first step：Proportioning according to claim 1, add and fit into reactor according to the amount of the water obtained after recipe calculation
The water of amount, agitating device is opened, system is warming up to 30 degrees Celsius；
Second step：Sequentially add sodium ethylene diamine tetracetate, thiocarbamide, CMIT, nitrous acid
Sodium, mercaptobenzothiazoler, neopelex, hexa, 40 degrees Celsius are warming up to, are kept for 2 hours；
3rd step：Sequentially add diethylene triamine pentamethylene phosphonic, citric acid, zinc sulfate, sodium borohydride, potassium chromate, sea
Mosanom, 2 hours are incubated in 35 degrees Celsius of stirrings；
4th step：Obtain product.
Beneficial effects of the present invention：
Using citric acid, sodium ethylene diamine tetracetate as cleaning in the cleaning agent prescription of the heat supply heating system of the present invention
Agent, and thiocarbamide, mercaptobenzothiazoler have corrosion inhibition, sodium alginate, diethylene triamine pentamethylene phosphonic have scale inhibition, complexing
The effect of metal ion, neopelex can play effective wetting surface and facilitation, and natrium nitrosum can be in gold
Metal surface forms one layer of fine and close oxide-film, and 5- chloro-2-methyl -4- isothiazoline -3- ketone can suppress bacterium in water, fungi, ferment
The growth of the microorganisms such as female bacterium, and potassium chromate has good film forming oxidation.Zinc sulfate can be used as precipitation membranous type to delay in itself
Lose agent to use, inventor is it has been investigated that it can play fabulous synergistic effect with thiocarbamide, mercaptobenzothiazoler compounding use.This
The cleaning agent of the heat supply heating system of invention takes full advantage of the synergistic slow corrosion effect of each component by selecting suitable composition.
Show that restrainer of the present invention multiple functions group in acid solution has system by electrochemical impedance spectroscopy and polarization curve experiment
System acts on, and belongs to mixing suppressive corrosion inhibiter, shows excellent corrosion mitigating effect.Can thoroughly it be removed using such a strong detergent
Various rust stainings, dirt and the solidfied material adhered in boiler and pipeline, and clean after boiler and pipe surface can form one kind
Diaphragm, reduce boiler and pipeline scale speed.The acid strong, good water solubility of the cleaning agent of the heat supply heating system of the present invention is right
Human body, boiler and pipeline non-corrosiveness, can significantly improve heat supply heating boiler and piping thermal efficiency, and preparation technology is simple,
It is easy to operate, it is safe and reliable.
Embodiment
Embodiment 1：
The cleaning agent of the heat supply heating system of the present invention includes the following component calculated by mass percentage：Ethylenediamine tetrem
Sour sodium 3.55%, thiocarbamide 0.39%, CMIT 2.05%, natrium nitrosum 2.75%, sulfydryl benzene
And thiazole 1.325%, neopelex 3.75%, hexa 2.13%, zinc sulfate 1.15%, sodium borohydride
2.15%th, diethylene triamine pentamethylene phosphonic 9.45%, citric acid 8.05%, potassium chromate 5.35%, sodium alginate 8.55%, remaining
Measure as water.
Embodiment 2：
The cleaning agent of the heat supply heating system of the present invention includes the following component calculated by mass percentage：Ethylenediamine tetrem
Sour sodium 3.35%, thiocarbamide 0.36%, CMIT 1.9%, natrium nitrosum 2.65%, sulfydryl benzene
And thiazole 1.3%, neopelex 3.55%, hexa 1.85%, zinc sulfate 0.975%, sodium borohydride
1.85%th, diethylene triamine pentamethylene phosphonic 8.75%, citric acid 7.35%, potassium chromate 4.975%, sodium alginate 8.35%,
Surplus is water.
Embodiment 3：
The cleaning agent of the heat supply heating system of the present invention includes the following component calculated by mass percentage：Ethylenediamine tetrem
Sour sodium 2.75%, thiocarbamide 0.35%, CMIT 1.75%, natrium nitrosum 2.35%, sulfydryl benzene
And thiazole 1.25%, neopelex 3.35%, hexa 1.5%, zinc sulfate 0.8%, sodium borohydride
1.55%th, diethylene triamine pentamethylene phosphonic 8.55%, citric acid 6.75%, potassium chromate 4.75%, sodium alginate 7.75%, remaining
Measure as water.
Embodiment 4：
The cleaning agent of the heat supply heating system of the present invention includes the following component calculated by mass percentage：Ethylenediamine tetrem
Sour sodium 4.25%, thiocarbamide 0.4%, CMIT 2.25%, natrium nitrosum 3.55%, sulfydryl benzene
And thiazole 1.4%, neopelex 4.35%, hexa 2.25%, zinc sulfate 1.2%, sodium borohydride
2.55%th, diethylene triamine pentamethylene phosphonic 9.75%, citric acid 8.25%, potassium chromate 5.75%, sodium alginate -9.25%,
Surplus is water.
Embodiment 5：
1st, static-state scale inhibition is tested：
According to National Standard of the People's Republic of China GB/T16632-2008, " the measure calcium carbonate of water treatment scale performance sinks
Area method " is carried out the cleaning agent static-state scale inhibition experiment of heat supply heating system made from a 1-4, and result of the test is as shown in table 1：
| Embodiment is numbered | Hinder calcium carbonate rate |
| 1 | 99.6% |
| 2 | 98.3% |
| 3 | 97.2% |
| 4 | 97.5% |
The static-state scale inhibition result of the test of table 1
2nd, static corrosion test：
Cleaning boiler system is connected, debugging boiler water is depressed into composite demand boiler water filling to drum low water level, isolated and clear
System without interaction is washed, is warming up to 80 DEG C or so, adds the Corrosion inhibitor for boiler acid washing and production of the present invention, holding circulates at this temperature, the time
Control is as shown in table 2 in 2-4 hours, static corrosion speed trial result：
| Embodiment is numbered | The firm static corrosion speed of boiler |
| 1 | 0.05 grams m2Hour |
| 2 | 0.08 grams m2Hour |
| 3 | 0.11 grams m2Hour |
| 4 | 0.14 grams m2Hour |
The static corrosion speed trial result of table 2
Result of the test shows, the cleaning agent of heat supply heating system made from embodiment 1-4 will not produce needle-like spot corrosion or
Expand and deepen original corrosion spot, test piece is bright after cleaning, not residual harmful film, without obvious copper facing phenomenon, solubility for scale
By force, will not fast decoupled, rotten, resistance to long-term existence, waste liquid is ordorless, and toxicity is low, meets discharge standard.
Embodiment 6：
Mouse toxicity is tested：
Using ICR mouse (Beijing Vital River Experimental Animals Technology Co., Ltd.'s offer) 60, body weight at 25-30 grams,
Carry out acute toxicity testing.Mouse is randomly divided into five groups, i.e. control group, 1 group of administration, 2 groups of administration, 3 groups of administration, 4 groups of administration, real
Fasting 12 hours before testing, then give such as the cleaning agent gavage of the embodiment 1-4 heat supply heating systems of the invention being prepared,
To median lethal dose (LD50) experiment measure has been carried out, but LD is not measured50, therefore carried out mtd test.As a result：Press
Feeding volume 120ml/kg gavages, given in four times in one day, none dead, execution each internal organs of mouse anatomic observation of mouse in seven days
Toxic reaction is not found, and administration 1-4 groups are with control group mice without any difference.
Above-described embodiment is in the art the purpose is to be to allow simply to illustrate that the technical concepts and features of the present invention
Those of ordinary skill can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent change or modification according to made by the essence of present invention, should all covers in protection scope of the present invention.
Claims (6)
- A kind of 1. cleaning agent of heat supply heating system, it is characterised in that：2.5-4.5% containing sodium ethylene diamine tetracetate, the different thiophenes of thiocarbamide 0.25-0.45%, 5- chloro-2-methyl -4- by mass percentage Oxazoline -3- ketone 1.5-2.5%, natrium nitrosum 2.25-3.75%, mercaptobenzothiazoler 1.15-1.45%, DBSA Sodium 3.25-4.75%, hexa 1.25-2.75%, zinc sulfate 0.75-1.25%, sodium borohydride 1.25-2.75%, Diethylene triamine pentamethylene phosphonic 8.25-10.25%, citric acid 5.5-8.5%, potassium chromate 3.5-6.5%, sodium alginate 7.25-9.75%, surplus are water.
- 2. the cleaning agent of heat supply heating system as claimed in claim 1, it is characterised in that：Contain ethylenediamine tetraacetic by mass percentage Sodium acetate 2.75-4.25%, thiocarbamide 0.35-0.4%, CMIT 1.75-2.25%, nitrous Sour sodium 2.35-3.55%, mercaptobenzothiazoler 1.25-1.4%, neopelex 3.35-4.35%, hexa-methylene four Amine 1.5-2.25%, zinc sulfate 0.8-1.2%, sodium borohydride 1.55-2.55%, diethylene triamine pentamethylene phosphonic 8.55- 9.75%th, citric acid 6.75-8.25%, potassium chromate 4.75-5.75%, sodium alginate 7.75-9.25%, surplus are water.
- 3. the cleaning agent of heat supply heating system as claimed in claim 2, it is characterised in that：Contain ethylenediamine tetraacetic by mass percentage Sodium acetate 3.25-3.75%, thiocarbamide 0.36-0.39%, CMIT 1.8-2.2%, nitrous acid Sodium 2.55-3.25%, mercaptobenzothiazoler 1.3-1.35%, neopelex 3.55-4.15%, hexa 1.75-2.15%, zinc sulfate 0.95-1.15%, sodium borohydride 1.75-2.25%, diethylene triamine pentamethylene phosphonic 8.75- 9.55%th, citric acid 7.25-8.15%, potassium chromate 4.95-5.55%, sodium alginate 8.25-8.75%, surplus are water.
- 4. the cleaning agent of heat supply heating system as claimed in claim 3, it is characterised in that：Contain ethylenediamine tetraacetic by mass percentage Sodium acetate 3.35%, thiocarbamide 0.36%, CMIT 1.9%, natrium nitrosum 2.65%, sulfydryl Benzothiazole 1.3%, neopelex 3.55%, hexa 1.85%, zinc sulfate 0.975%, hydroboration Sodium 1.85%, diethylene triamine pentamethylene phosphonic 8.75%, citric acid 7.35%, potassium chromate 4.975%, sodium alginate 8.35%th, surplus is water.
- 5. the cleaning agent of heat supply heating system as claimed in claim 3, it is characterised in that：Contain ethylenediamine tetraacetic by mass percentage Sodium acetate 3.55%, thiocarbamide 0.39%, CMIT 2.05%, natrium nitrosum 2.75%, sulfydryl Benzothiazole 1.325%, neopelex 3.75%, hexa 2.13%, zinc sulfate 1.15%, hydroboration Sodium 2.15%, diethylene triamine pentamethylene phosphonic 9.45%, citric acid 8.05%, potassium chromate 5.35%, sodium alginate 8.55%, Surplus is water.
- 6. the preparation method of the cleaning agent of the heat supply heating system as described in claim 1-5, it is characterised in that specific steps are such as Under：The first step：According to proportioning, appropriate water is added into reactor according to the amount of the water obtained after recipe calculation, opens stirring Device, system is warming up to 30 degrees Celsius；Second step：Sequentially add sodium ethylene diamine tetracetate, thiocarbamide, CMIT, natrium nitrosum, Mercaptobenzothiazoler, neopelex, hexa, 40 degrees Celsius are warming up to, are kept for 2 hours；3rd step：Sequentially add diethylene triamine pentamethylene phosphonic, citric acid, zinc sulfate, sodium borohydride, potassium chromate, alginic acid Sodium, 2 hours are incubated in 35 degrees Celsius of stirrings；4th step：Obtain product.
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| CN105220164B true CN105220164B (en) | 2017-12-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108064261A (en) * | 2017-11-08 | 2018-05-22 | 苏州荣能环保科技有限公司 | A kind of floor heating pipeline cleaning solution |
| CN110156178A (en) * | 2018-03-27 | 2019-08-23 | 新疆环境工程技术有限责任公司 | A kind of softening scale remover for desulphurization system |
| CN109777637A (en) * | 2019-03-18 | 2019-05-21 | 廊坊一萍锅炉保养工程有限公司 | Plate-type heat-exchange unit boiler tubing environment-friendly cleaning agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN1440930A (en) * | 2002-02-26 | 2003-09-10 | 舟山明日纳米材料有限公司 | Prepn process of nano rutile-type titania |
| CN1715450A (en) * | 2004-06-29 | 2006-01-04 | 上海万森水处理有限公司 | Acid corrosion inhibitor |
| CN101066811A (en) * | 2007-06-15 | 2007-11-07 | 武汉金坡化工科技有限公司 | No-phosphate corrosion and scale inhibitor and its application |
-
2015
- 2015-10-21 CN CN201510715925.9A patent/CN105220164B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1257841A (en) * | 1998-12-23 | 2000-06-28 | 王福霖 | Corrosion-retarding scale inhibitor for boiler |
| CN1440930A (en) * | 2002-02-26 | 2003-09-10 | 舟山明日纳米材料有限公司 | Prepn process of nano rutile-type titania |
| CN1715450A (en) * | 2004-06-29 | 2006-01-04 | 上海万森水处理有限公司 | Acid corrosion inhibitor |
| CN101066811A (en) * | 2007-06-15 | 2007-11-07 | 武汉金坡化工科技有限公司 | No-phosphate corrosion and scale inhibitor and its application |
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