CN107055821A - Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method - Google Patents
Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method Download PDFInfo
- Publication number
- CN107055821A CN107055821A CN201710404764.0A CN201710404764A CN107055821A CN 107055821 A CN107055821 A CN 107055821A CN 201710404764 A CN201710404764 A CN 201710404764A CN 107055821 A CN107055821 A CN 107055821A
- Authority
- CN
- China
- Prior art keywords
- wlzhlys
- cooling water
- corrosion inhibitor
- phosphorus
- recirculated cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Abstract
The invention discloses a kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, anti-incrustation corrosion inhibitor is made up of WLZHLYS A and WLZHLYS B two parts, wherein, WLZHLYS A include：Acrylic ternary copolymer, HPMA, BTA, isopropanol and deionized water；WLZHLYS B include：Beta cyclodextrin, Citric Acid Mono, anhydrous zinc chloride and deionized water.The invention also discloses the application method of the anti-incrustation corrosion inhibitor.The recirculated cooling water non-phosphorus scale and corrosion inhibitor of the present invention has the without phosphorus of good anticorrosion-antiscaling effect using beta cyclodextrin with a variety of, nontoxic other anti-incrustation corrosion inhibitors compounding, substantially increase anticorrosion-antiscaling property, the heating 2 hours that trip temperature is not less than 80 DEG C is entered by each component to anti-incrustation corrosion inhibitor, diffusion has big specific surface area, surface energy, can have very high scale inhibition performance, and improve inhibition efficiency to the calcium carbonate in water, calcium sulfate and calcium phosphate scale well.
Description
Technical field
The present invention relates to industrial circulation water treatment technical field, and in particular to a kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor
And its application method.
Background technology
At present, domestic cooling water treatment agent largely belongs to organic phosphine formula, and Some Enterprises also use Phos formula.To the greatest extent
Pipe phosphorus is nontoxic, but it as nutrient source, it can make body eutrophication, promote microorganism particularly algae excessive propagation, seriously
It is to cause surface water wawter bloom, red tide of sea etc. to endanger, destroys the ecological balance.European and American developed countries have started to prohibit phosphorus limit phosphorus, in recent years
Come, the discharge of some cities of China and area to phosphorus is limited.As China goes out to a series of policies of environmental protection
Platform, particularly strict limitation (＜ 0.5mg/L, in terms of P) to phosphorus discharge standard, Scaling Inhibitor For Recirculating Cooling Water must be from
Phosphorus line formulation is changed to without phosphorus formula, and this is also the inexorable trend of national requirements for environmental protection and technology development.
In existing anti-incrustation corrosion inhibitor, formula phosphorus content is higher, causes Wastewater Form Circulating Cooling Water directly to discharge, it is necessary to pass through
It can be discharged after sewage-treatment plant dephosphorization, and Circulating water effluent water factor amount is big, phosphorus content is high, dephosphorization cost is higher, adds
The P nutrient sources required for microbial reproduction are provided after recirculating cooling water system, the breeding of algae can be caused, there is circulating cooling
Water system microorganism problem, even if there is non-phosphorus scale and corrosion inhibitor, but is used in recirculating cooling water system, and especially " calcium is hard+total
Alkali " is in more than 1000mg/L, and scale inhibitor effect will be substantially reduced.
The content of the invention
The present invention has designed and developed a kind of without phosphorus resistance of recirculated cooling water for above developing thought and the technical problem of presence
Dirty corrosion inhibiter and its application method, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is using natural polymer beta-schardinger dextrin as wherein
A kind of component, its can with water formation inclusion compound, with metal ion-chelant formation chelate, with good scale inhibitor effect
Really, component compounding a variety of without phosphorus with good scale inhibitor effect with other, nontoxic, substantially increases its scale inhibitor
Can, particularly with " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system.
The technical scheme that the present invention is provided is：
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is by WLZHLYS-A
Constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes：Acrylic ternary copolymer, HPMA, benzo
Triazole, isopropanol and deionized water；WLZHLYS-B includes：Beta-schardinger dextrin, Citric Acid Mono, anhydrous zinc chloride and deionization
Water.
Preferably, wherein, in the WLZHLYS-A, each component percentage by weight is：Acrylic ternary copolymer 30~
35%, HPMA 40~42.5%, BTA 1~2%, isopropanol 3~5%, surplus is deionized water.
Preferably, wherein, in the WLZHLYS-B, each component percentage by weight is：Beta-schardinger dextrin 10~12%, one
Water citric acid 5~7.5%, anhydrous zinc chloride 10~12.5%, surplus is deionized water.
Preferably, wherein, acrylic ternary copolymer be acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymerization
Thing.
Preferably, wherein, in the WLZHLYS-A, each component percentage by weight is：Acrylic ternary copolymer
32.5%, HPMA 41.5%, BTA 1.6%, isopropanol 4.2%, surplus is deionized water.
Preferably, wherein, in the WLZHLYS-B, each component percentage by weight is：Beta-schardinger dextrin 11.5%, a water
Citric acid 6.5%, anhydrous zinc chloride 11.5%, surplus is deionized water.
The purpose of the present invention can also further by recirculated cooling water non-phosphorus scale and corrosion inhibitor water quality concentrate 4.0 times with
On, the method for the application of " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system is realized.
Preferably, wherein, recirculated cooling water non-phosphorus scale and corrosion inhibitor concentrates more than 4.0 times, " calcium hard+total alkali " in water quality
Application in more than 1000mg/L recirculating cooling water system, specifically includes following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2
Hour, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol hydrolyzes poly- horse
Carry out acid anhydrides, acrylic ternary copolymer is dispensed into container successively, heat 2 hours, temperature is not less than 80 DEG C, formation
WLZHLYS-A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is concentrated applied to water quality
More than 4.0 times, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, in every liter of recirculated cooling water plus
Enter 35~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
The beneficial effects of the present invention are：
1st, the present invention is without phosphorus, it is to avoid because the discharge of phosphorus causes the eutrophication problem of water quality, alleviate environmental pollution,
The generation of calcium phosphate scale is avoided simultaneously, is considerably reduced the breeding of microorganism, it is possible to decrease the processing cost of sterilization algae removal, is followed
Ring water sewer can meet phosphorus as defined in national GB8978-1996 and discharge primary standard requirement；
2nd, recirculated cooling water non-phosphorus scale and corrosion inhibitor of the invention, using beta-schardinger dextrin, natural polymer, with good
Biocompatibility and environment friendly, with chelate of metal ion, can have good inhibition resistance with water formation inclusion compound with a variety of
Without phosphorus, nontoxic other anti-incrustation corrosion inhibitors compounding of dirty effect, substantially increases its anticorrosion-antiscaling property；
3rd, the present invention enters the heating 2 hours that trip temperature is not less than 80 DEG C in compound process, so that without phosphorus compounding resistance
Dirty corrosion inhibiter has a big specific surface area, surface can, dispersive property is good, even if high calcium, in high alkalinity water, to calcium carbonate, phosphoric acid
Calcium, calcium sulfate, zinc dirt has significant scale effect, while the deposition of iron oxide can be prevented effectively, is particularly suitable for high pH, high-alkali
Degree, the water quality of high rigidity, when the circulatory system " calcium hard+total alkali " is more than 1500mg/L, remain to keep the higher dirty rate of resistance carbonic acid,
Therefore high concentration multiple operation of recirculated cooling water system, using water wisely can be realized；
4th, in recirculated cooling water non-phosphorus scale and corrosion inhibitor of the invention, the organic aliphatic acid polymerization of HPMA system
Thing, chemical stability and heat endurance are high, and decomposition temperature is more than 300 degree, with the suppression work good to carbonate, phosphate
With also having obvious threshold effect under the conditions of high temperature and high ph-values, its effective scale inhibition decay time limit is more than or equal to 100h.
5th, the formula substantially reduce the number the P nutrient sources required for microbial reproduction, therefore add the non-phosphorus scale because not phosphorous
The breeding of algae is not resulted in after corrosion inhibiter, after recirculating cooling water system, recirculating cooling water system microorganism is greatly reduced and asks
Topic；
6th, recirculated cooling water non-phosphorus scale and corrosion inhibitor of the invention has excellent antioxygenic property (such as chlorine, hypochlorous acid
Sodium, chlorine dioxide etc.), and there is the effect of synergy to oxidizing bactericide.
Embodiment
With reference to the present invention is described in further detail, to make those skilled in the art with reference to specification word energy
It is enough to implement according to this.
Embodiment 1
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is by WLZHLYS-A
Constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes by weight percentage：Acrylic acid -2- acrylamido -2- first
Base sulphonic acid copolymer 32.5%, HPMA 41.5%, BTA 1.6%, isopropanol 4.2%, surplus is
Deionized water；WLZHLYS-B includes by weight percentage：Beta-schardinger dextrin 11.5%, Citric Acid Mono 6.5%, anhydrous zinc chloride
11.5%, surplus is deionized water.
The application method of the recirculated cooling water non-phosphorus scale and corrosion inhibitor comprises the following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2
Hour, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol hydrolyzes poly- horse
Carry out acid anhydrides, acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymers are dispensed into container successively, heat 2 hours,
Temperature is not less than 80 DEG C, forms WLZHLYS-A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is concentrated applied to water quality
More than 4.0 times, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, in every liter of recirculated cooling water plus
Enter 35~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
Embodiment 2
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is by WLZHLYS-A
Constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes by weight percentage：Acrylic acid -2- acrylamido -2- first
Base sulphonic acid copolymer 30%, HPMA 40%, BTA 1%, isopropanol 3%, surplus is deionized water；
WLZHLYS-B includes by weight percentage：Beta-schardinger dextrin 10%, Citric Acid Mono 5%, anhydrous zinc chloride 10%, surplus is to go
Ionized water.
The application method of the recirculated cooling water non-phosphorus scale and corrosion inhibitor comprises the following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2
Hour, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol hydrolyzes poly- horse
Carry out acid anhydrides, acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymers are dispensed into container successively, heat 2 hours,
Temperature is not less than 80 DEG C, forms WLZHLYS-A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is concentrated applied to water quality
More than 4.0 times, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, in every liter of recirculated cooling water plus
Enter 35~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
Embodiment 3
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is by WLZHLYS-A
Constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes by weight percentage：Acrylic acid -2- acrylamido -2- first
Base sulphonic acid copolymer 35%, HPMA 42.5%, BTA 2%, isopropanol 5%, surplus is deionization
Water；WLZHLYS-B includes by weight percentage：Beta-schardinger dextrin 12%, Citric Acid Mono 7.5%, anhydrous zinc chloride 12%, surplus
For deionized water.
The application method of the recirculated cooling water non-phosphorus scale and corrosion inhibitor comprises the following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2
Hour, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol hydrolyzes poly- horse
Carry out acid anhydrides, acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymers are dispensed into container successively, heat 2 hours,
Temperature is not less than 80 DEG C, forms WLZHLYS-A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is concentrated applied to water quality
More than 4.0 times, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, in every liter of recirculated cooling water plus
Enter 35~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
Embodiment 4
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, the recirculated cooling water non-phosphorus scale and corrosion inhibitor is by WLZHLYS-A
Constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes by weight percentage：Acrylic acid -2- acrylamido -2- first
Base sulphonic acid copolymer 33.5%, HPMA 42%, BTA 1.3%, isopropanol 3.6%, surplus is to go
Ionized water；WLZHLYS-B includes by weight percentage：Beta-schardinger dextrin 10.8%, Citric Acid Mono 5.8%, anhydrous zinc chloride
11%, surplus is deionized water.
The application method of the recirculated cooling water non-phosphorus scale and corrosion inhibitor comprises the following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2
Hour, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol hydrolyzes poly- horse
Carry out acid anhydrides, acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymers are dispensed into container successively, heat 2 hours,
Temperature is not less than 80 DEG C, forms WLZHLYS-A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is concentrated applied to water quality
More than 4.0 times, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, in every liter of recirculated cooling water plus
Enter 35~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
Comparative example 1
Beta-schardinger dextrin is not contained in component, other and all same of embodiment 1.
Comparative example 2
Constituent content is same as Example 1, does not enter the heating 2 hours that trip temperature is not less than 80 DEG C during use.
Test portion：
(1) rotary hanging plate corrosion test：
Test water：pH：8.38 electrical conductivity：779 μ s/cm calcium are hard：520.87mg/L, chlorion：16.33mg/L, total alkali：
651.50mg/L, sulfate radical：428.50mg/L.
Test apparatus：The type rotary hanging plate corrosion testers of RCC- II, 3,2L beakers.
Test method：With reference to sinopec water treatment agent assessment of performance standard SH2604.12-2001《At recirculated cooling water
Reason anti-incrustation corrosion inhibitor assessment of performance standard》
Wherein, No. 1 beaker uses the recirculated cooling water non-phosphorus scale and corrosion inhibitor in embodiment 1, what No. 2 beakers were used
It is the recirculated cooling water non-phosphorus scale and corrosion inhibitor in embodiment 4, No. 3 beakers are not add any anti-incrustation corrosion inhibitor.
With comparative example comparing result：
Result of the test is discussed：Shown by above-mentioned experiment, present invention compounding anti-incrustation corrosion inhibitor is hung to carbon steel lacing film, stainless steel
Piece, copper has good corrosion mitigating effect, by using cooperatively for beta-schardinger dextrin and other components, and carries out in use
Temperature is not less than the operation that 80 DEG C of heating is reused after 2 hours, substantially increases inhibition efficiency.
(2) resistance calcium carbonate scale rate experiment
By the above-mentioned recirculated cooling water non-phosphorus scale and corrosion inhibitor being configured in 35 DEG C of temperature, turn 75r/min, put into following table
In described recirculated cooling water, test period is 72h,
Test water：pH:8.38 electrical conductivity：779 μ s/cm chlorions：16.33mg/L, sulfate radical：428.50mg/L, calcium
Firmly+total alkali mg/L as shown in Table,
Test method：With reference to sinopec composite scale-inhibiting corrosion inhibitor technical requirements Q/SH0374-2010.
Result of the test
| Embodiment 1 | Embodiment 1 | Embodiment 1 | |
| Calcium is hard+total alkali mg/L | 1232 | 1521 | 1689 |
| Hinder calcium carbonate scale rate/% | 98.33 | 99.55 | 99.62 |
With comparative example comparing result：
| Embodiment 1 | Comparative example 1 | Comparative example 2 | |
| Calcium is hard+total alkali mg/L | 1689 | 1689 | 1689 |
| Hinder calcium carbonate scale rate/% | 99.62 | 93.55 | 94.12 |
(3) resistance calcium sulfate scale rate experiment
Test water：pH:8.38 electrical conductivity：779 μ s/cm chlorions：16.33mg/L, sulfate radical：428.50mg/L, calcium
Firmly+total alkali mg/L as shown in Table,
Test method：With reference to sinopec composite scale-inhibiting corrosion inhibitor technical requirements Q/SH0374-2010.
| Embodiment 1 | Embodiment 1 | Embodiment 1 | |
| Calcium is hard+total alkali mg/L | 1232 | 1521 | 1689 |
| Hinder calcium sulfate scale rate/% | 98.52 | 99.47 | 99.58 |
With comparative example comparing result：
| Embodiment 1 | Comparative example 1 | Comparative example 2 | |
| Calcium is hard+total alkali mg/L | 1689 | 1689 | 1689 |
| Hinder calcium sulfate scale rate/% | 99.58 | 92.45 | 93.52 |
(4) resistance calcium phosphate scale rate experiment
Test water：pH:8.38 electrical conductivity：779 μ s/cm chlorions：16.33mg/L, sulfate radical：428.50mg/L, calcium
Firmly+total alkali mg/L as shown in Table,
Test method：With reference to sinopec composite scale-inhibiting corrosion inhibitor technical requirements Q/SH0374-2010.
With comparative example comparing result：
| Embodiment 1 | Comparative example 1 | Comparative example 2 | |
| Calcium is hard+total alkali mg/L | 1689 | 1689 | 1689 |
| Hinder calcium phosphate scale rate/% | 99.28 | 93.13 | 94.07 |
Result of the test is discussed：Shown by above-mentioned experiment, present invention compounding anti-incrustation corrosion inhibitor is to calcium carbonate, calcium sulfate, phosphorus
Sour calcium has high scale inhibition performance, by using cooperatively for beta-schardinger dextrin and other components, and enters trip temperature in use
It is not less than the operation that 80 DEG C of heating is reused for 2 hours, substantially increases scale inhibition efficiency.
(5) dynamic simulation experiment
Test water：pH：8.38 electrical conductivity：779 μ s/cm calcium are hard：520.87mg/L, chlorion：16.33mg/L, total alkali：
651.50mg/L, sulfate radical：428.50mg/L.
Test method：With reference to recirculated cooling water dynamic analog test method HG/T2762-2008.
Test apparatus：Using the type recirculated cooling water dynamic simulation testers of MTDM-II
Test tube dirtiness resistance
In formula：R- cleans pipe thermal resistance, m2·℃/W
di- experiment bore, m；Value is 0.008m.
G- cooling water flows, L/h；Value is 250L/h.
T- vapor (steam) temperatures, DEG C；Value is 99 DEG C.
t1'-cooling water inlet temperature, DEG C；Value is 32 DEG C.
t′2- cooling water outlet temperature, DEG C；Value is 42 DEG C.
L- developmental tubes effectively exchange heat length, m；Value is 0.57m.
Each value brings formula into and calculates r=3.0 × 10 by more than-4m2·℃/W。
3), adhesion speed (moon dirt deposition speed) is calculated
In formula：W1(mg)：Test tube taking-up is weighed after drying；W2(mg)：Test tube is weighed after being cleaned and dried；
T(day)：The number of days that test tube is linked into；.
A(cm2)：The area of test tube.
Measurement result is：mcm1=8.33mg/cm2Month
mcm2=10.91mg/cm2Month
mcm3=9.51mg/cm2Month
Composite scale-inhibiting corrosion inhibitor Performance evaluation criterion
Performance requirement such as following tables of the sinopec Q/SH0374-2010 to composite scale-inhibiting corrosion inhibitor.
Conclusion (of pressure testing)
From the point of view of test data, comparative evaluation's standard, experiment non-phosphorus scale and corrosion inhibitor used has reached Q/SH0374-
The scale inhibition of 2010 pairs of composite scale-inhibiting corrosion inhibitors, corrosion inhibition requirement, with the condition applied at the scene.
Field application
The formula is particularly suitable for that water quality concentrates more than 4.0 times, " calcium firmly+total alkali " in more than 1000mg/L recirculated cooling water
System, good effect is achieved in system applications such as Henan chemical plant, Sichuan refinery factories.
The formula is applied to behind water process scene, and each set recirculating cooling water system operation cycles of concentration is stablized 4~6 always
Times, from the point of view of the monitoring situation by hanging film scene and bypass monitoring heat exchanger, either corrosion inhibition or scale-inhibiting properties reach
To the outstanding level standard of Industry code requirements, not pre- film carbon steel test piece rate of corrosion is substantially controlled in 0.020mm/a or so, stainless
Steel test piece rate of corrosion is not detected, and dirtiness resistance is in fine level.
System high concentration multiple operation gesture is easily caused bacterium algae control difficulty and increased, but due to the use of phosphate-free water treatment agent,
Cause sterilization algae removal control easy and effective, not only save a large amount of fresh waters, while the usage amount of bactericide also decreases.
Conclusion
The phosphate-free water treatment agent WLZHLYS-A/B corrosion and scale inhibition performances of the present invention are excellent, can be to carbon steel, stainless steel and copper
Alloy provides effective protection, it is to avoid the deposition of calcium carbonate, calcium sulfate and calcium phosphate, and substantially, this formula can also drop scale inhibition effect
Low sterilization algae removal processing cost 10%~30%, beneficial to field application control, in addition, the circulation that the formula is applied, its
Sewer discharge is unrestricted, can be required in strict conformity with national grade one discharge standard.
The present invention recirculated cooling water non-phosphorus scale and corrosion inhibitor be particularly applicable to high rigidity, high alkalinity, high-temperature with
And calcium ions, magnesium ion and the more natural gas purification processing factory of sulfate ion, chemical plant recirculating cooling water system, it is described
Composite scale-inhibiting corrosion inhibitor is also applied for the industry circulating cooling water system such as high rigidity, high alkalinity, the chemical fertilizer of high-temperature, electric power, weaving
System.
A kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor of the present invention has good delay using beta-schardinger dextrin with a variety of
The without phosphorus of scale inhibition effect is lost, nontoxic other anti-incrustation corrosion inhibitors compounding substantially increases its anticorrosion-antiscaling property.
During the use of the recirculated cooling water non-phosphorus scale and corrosion inhibitor of the present invention, 80 DEG C of heating is not less than by temperature
Processing 2 hours, diffusion has big specific surface area, and surface energy can be well to the calcium carbonate in water, calcium sulfate and calcium phosphate
Dirt has very high scale inhibition performance, and improves inhibition efficiency.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (8)
1. a kind of recirculated cooling water non-phosphorus scale and corrosion inhibitor, it is characterised in that the recirculated cooling water non-phosphorus scale and corrosion inhibitor by
WLZHLYS-A is constituted with WLZHLYS-B two parts, wherein, WLZHLYS-A includes：Acrylic ternary copolymer, hydrolyzes poly- Malaysia
Acid anhydrides, BTA, isopropanol and deionized water；WLZHLYS-B includes：Beta-schardinger dextrin, Citric Acid Mono, anhydrous zinc chloride
And deionized water.
2. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 1, it is characterised in that in the WLZHLYS-A, respectively
Weight percentages of components is：Acrylic ternary copolymer 30~35%, HPMA 40~42.5%, BTA
1~2%, isopropanol 3~5%, surplus is deionized water.
3. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 1, it is characterised in that in the WLZHLYS-B, respectively
Weight percentages of components is：Beta-schardinger dextrin 10~12%, Citric Acid Mono 5~7.5%, anhydrous zinc chloride 10~12.5% is remaining
Measure as deionized water.
4. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 1, it is characterised in that acrylic ternary copolymer is
Acrylic acid -2- acrylamide-2-methylpro panesulfonic acid copolymers.
5. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 2, it is characterised in that in the WLZHLYS-A, respectively
Weight percentages of components is：Acrylic ternary copolymer 32.5%, HPMA 41.5%, BTA 1.6%,
Isopropanol 4.2%, surplus is deionized water.
6. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 3, it is characterised in that in the WLZHLYS-B, respectively
Weight percentages of components is：Beta-schardinger dextrin 11.5%, Citric Acid Mono 6.5%, anhydrous zinc chloride 11.5%, surplus is deionization
Water.
7. recirculated cooling water non-phosphorus scale and corrosion inhibitor as described in claim 1~6 any one water quality concentrate 4.0 times with
On, the application of " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system.
8. recirculated cooling water non-phosphorus scale and corrosion inhibitor as claimed in claim 7 concentrates more than 4.0 times in water quality, " calcium is hard+total
Application of the alkali " in more than 1000mg/L recirculating cooling water system, it is characterised in that specifically include following steps：
Step 1: anti-incrustation corrosion inhibitor is compounded：Each component in WLZHLYS-B is proportionally added in container, heats 2 small
When, temperature is not less than 80 DEG C；
Step 2: by each component in WLZHLYS-A in proportion by deionized water, BTA, isopropanol, hydrolyzed polymaleic anhydride
Acid anhydride, acrylic ternary copolymer is dispensed into container successively, is heated 2 hours, and temperature is not less than 80 DEG C, forms WLZHLYS-
A and the without phosphorus compounding anti-incrustation corrosion inhibitors of WLZHLYS-B；
Step 3: the without phosphorus compounding anti-incrustation corrosion inhibitor of the WLZHLYS-A of formation and WLZHLYS-B is applied into water quality concentrates 4.0 times
More than, " calcium hard+total alkali " in more than 1000mg/L recirculating cooling water system, wherein, add 35 in every liter of recirculated cooling water
~45 milligrams of without phosphorus compounding anti-incrustation corrosion inhibitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404764.0A CN107055821A (en) | 2017-06-01 | 2017-06-01 | Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710404764.0A CN107055821A (en) | 2017-06-01 | 2017-06-01 | Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107055821A true CN107055821A (en) | 2017-08-18 |
Family
ID=59616232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710404764.0A Pending CN107055821A (en) | 2017-06-01 | 2017-06-01 | Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107055821A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667205B (en) * | 2018-05-23 | 2019-08-01 | 新湧科技股份有限公司 | Heat exchange system with antiscaling effect and antiscaling method |
| CN114149090A (en) * | 2021-12-21 | 2022-03-08 | 重庆三峡学院 | Composite scale inhibitor and application thereof |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452721A (en) * | 2010-10-20 | 2012-05-16 | 中国石油化工股份有限公司 | Phosphorus-free composite scale-inhibiting corrosion-retarding agent and application thereof in water treatment |
| KR20120079643A (en) * | 2011-01-05 | 2012-07-13 | 주식회사 이디크린 | Corrugated cardboard with rust resistance and manufaturing method therefor |
| CN103241846A (en) * | 2013-05-09 | 2013-08-14 | 北京市龙源科创石油技术有限公司 | Composite scale and corrosion inhibitor |
| CN103253777A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Composition used in scale-inhibition corrosion inhibitor, scale-inhibition corrosion inhibitor, and application thereof |
| CN103466813A (en) * | 2013-09-16 | 2013-12-25 | 武汉理工大学 | Non-phosphorus scale inhibition dispersant and application thereof |
-
2017
- 2017-06-01 CN CN201710404764.0A patent/CN107055821A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452721A (en) * | 2010-10-20 | 2012-05-16 | 中国石油化工股份有限公司 | Phosphorus-free composite scale-inhibiting corrosion-retarding agent and application thereof in water treatment |
| KR20120079643A (en) * | 2011-01-05 | 2012-07-13 | 주식회사 이디크린 | Corrugated cardboard with rust resistance and manufaturing method therefor |
| CN103253777A (en) * | 2012-02-20 | 2013-08-21 | 中国石油化工股份有限公司 | Composition used in scale-inhibition corrosion inhibitor, scale-inhibition corrosion inhibitor, and application thereof |
| CN103241846A (en) * | 2013-05-09 | 2013-08-14 | 北京市龙源科创石油技术有限公司 | Composite scale and corrosion inhibitor |
| CN103466813A (en) * | 2013-09-16 | 2013-12-25 | 武汉理工大学 | Non-phosphorus scale inhibition dispersant and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI667205B (en) * | 2018-05-23 | 2019-08-01 | 新湧科技股份有限公司 | Heat exchange system with antiscaling effect and antiscaling method |
| US11774196B2 (en) | 2018-05-23 | 2023-10-03 | Chu-Fu Chen | Heat exchange system having desired anti-scaling performance and an anti-scaling method thereof |
| CN114149090A (en) * | 2021-12-21 | 2022-03-08 | 重庆三峡学院 | Composite scale inhibitor and application thereof |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100357199C (en) | Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment | |
| CN108623020A (en) | A kind of novel corrosion-retarding antisludging agent and the preparation method and application thereof | |
| CN104556420B (en) | The corrosion-proofing and antisludging method of without phosphorus composite slow-corrosion scale resistor and preparation method thereof and recirculated cooling water | |
| CN102730847B (en) | Non-phosphorus composite anti- incrustation corrosion inhibiter and its application in water treatment | |
| CN101746903B (en) | Phosphorus-free composite water treatment agent | |
| CN102674570A (en) | Composite low-phosphorus corrosion and scale inhibitor and application thereof | |
| CN103482775B (en) | Composite scale and corrosion inhibitor and preparation method thereof | |
| CN108249595A (en) | Non-phosphorus scale and corrosion inhibitor and preparation method thereof | |
| CN102815796A (en) | Composite phosphorus-free corrosion and scale inhibitor and its application | |
| CA2740635A1 (en) | Compositions and methods for inhibiting corrosion in aqueous media | |
| CN104355419A (en) | Multifunctional scale and corrosion inhibitor and preparation method thereof | |
| CN104556417A (en) | Composite corrosion-inhibiting and antisludging agent composition and preparation method thereof | |
| CN107055821A (en) | Recirculated cooling water non-phosphorus scale and corrosion inhibitor and its application method | |
| CN102452721A (en) | Phosphorus-free composite scale-inhibiting corrosion-retarding agent and application thereof in water treatment | |
| CN104310600A (en) | Environment-friendly composite water treatment agent and application thereof | |
| CN100547117C (en) | The silicon-tungsten corrosion inhibitor that is used for circulation cooling system of demineralized water | |
| CN104140162B (en) | With the non-phosphorus scale and corrosion inhibitor and preparation method thereof of seawater as recirculated cooling water | |
| CN104629957B (en) | A kind of greasy filth cleansing composition and its application method | |
| CN107244753A (en) | The special special efficacy environment-friendly type organic anti-scale corrosion inhibiter of heat supply network of steam power plant | |
| CN103803739B (en) | Method for recycling of reclaimed water in circulating cooling water system | |
| CN102351326A (en) | Method for preparing micro-phosphor anti-scaling corrosion inhibitor | |
| CN104402130B (en) | Circulating water treating agent and preparation method thereof | |
| CN104649422B (en) | A kind of composite scale-inhibiting corrosion inhibitor and preparation method who is applied to blast furnace closed circulating water system | |
| CN109052677A (en) | A kind of recirculated water corrosion inhibiting and descaling agent and its application method | |
| CN110104803A (en) | A kind of environment-friendly composite corrosion and scale inhibitor, method of preparation and use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |