CN109763018A

CN109763018A - A kind of descaling and antiscaling alloy, descaler and preparation method thereof

Info

Publication number: CN109763018A
Application number: CN201910137039.0A
Authority: CN
Inventors: 李书召
Original assignee: Wuhan Zhongshengst Technology Co Ltd
Current assignee: Wuhan Zhongshengst Technology Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2019-05-17
Anticipated expiration: 2039-02-25
Also published as: CN109763018B

Abstract

The invention discloses a kind of descaling and antiscaling alloys, by mass percentage, including the following raw material component: copper 71%~75%, nickel 6%~10%, tin 0.5%~3%, zinc 5%~15%, lead 6.5%~10%；The invention also discloses using descaler made of the descaling and antiscaling alloy and preparation method thereof；This above 5 clock element combinations are carried out electrochemical action to the various fouling components in water, make the electronics transfer of its various ion, disengaging becomes monomolecular crystal and is independently present in water, play the role of antiscale, good descaling effect, scale inhibition performance a height of 97.37%, improves production efficiency, reduce disposal of pollutants, extends the service life of equipment；One heat exchange equipment of average value, which is installed, will save combustion gas expense (552965+238041) ÷ 2=395503 member in antisludging equipment of the invention latter year, and the catalytic life of this alloy material is very long, therefore be used continuously more economical.

Description

A kind of descaling and antiscaling alloy, descaler and preparation method thereof

Technical field

The present invention relates to technical field of alloy more particularly to a kind of descaling and antiscaling alloy, descaler and preparation method thereof.

Background technique

At present in industrial revolution fast development process, since scale problems cause the puzzlement of enterprise in heat transfer process.People Water use industrial production at present with regard to scale problems never be well solved.The development of water treatment facilities also goes out Show ever-changing, while the effect of water treatment facilities does not reach the demand of enterprise's long-term production yet.Enterprise in production by Because recirculated water fouling causes, production efficiency is low, and energy consumption increases.

Industrial circulating cooling water system is that the essential component part of the equipment of industrial product is changed with the operation of system Hot surface can generate scale, reduce the exchange efficiency of heat exchanger.In order to prevent recirculating cooling water system in the process of running Generate dirt, it is necessary to which scale inhibition processing is carried out to system.Although traditional chemical method scale inhibition effect is good, environment guarantor is run counter to The requirement of shield and sustainable development.

So first we to take off how dirt is formed? in nature, calcium carbonate (CaCO₃) it is used as lime Stone and marble and exist；Silica (SiO₂), aluminium oxide (Al₂O₃) and calcium sulfate (CaSO₄) it is then main miscellaneous in lime stone Matter plays adhesive (binder).In nature, the magnesium carbonate (MgCO largely deposited₃) together with calcium carbonate with white Marble (CaCO₃。MgCO₃) form exist, or as magnesite (MgCO₃) and exist.Even if as if Arizona State is big The limestone layer of alpine region as valley, depth are more than one mile, are the something lost by being deposited on the marine creature in seabed Body is formed by the variation of centuries, CaCO contained by these biological remains₃With the silica (SiO as adhesive₂)、 Aluminium oxide (Al₂O₃) and/or clay (SiO₂.Al₂O₃.12H₂O) chemical combination is together.In addition, lime stone generally comprises MgCO₃.For the Grand Canyon of Arizona State, scientists have identified at least seven kinds of different limestone layers, and every layer There is the shell of marine animal, this shows that the region at least covered seven kinds of different seas in earth history.

CaCO₃Only slightly soluble in water, however, a large amount of calcium becomes to dissolve since rainwater is under the action of lime stone In most of water.Some are acid for rainwater, this is because encountering carbon dioxide (CO when it is fallen by atmosphere₂), the two It reacts, generates carbonic acid (H₂CO₃), it is shown below:

H₂O+CO₂→H₂CO₃

When the lime stone on contacting rain water to ground, lime stone dissolution becomes calcium bicarbonate and enters in solution, as follows Shown in formula:

CaCO₃+2H₂CO₃→Ca²⁺+2HCO₃ ^-+2H₂O+CO₂

Carbonic acid can be ionized slightly:

H₂CO₃→H++HCO₃ ^-

Due to HCO₃ ^-Dissociation constant it is very small:

K1=(H+)+(CO₃ ^2-〕

By carbonic acid, increased H+ concentration can reduce CO₃ ^2-Concentration (CO₃ ^2-It is CaCO₃Solid is dissolved in the water and generates Ion), because of H⁺Ion and CO₃ ^2-Ions binding generates the bicarbonate ion HCO of micro- ionization₃ ^-.CO in solution₃ ^2-Ion The reduction of concentration causes more CaCO₃With Ca²⁺+2HCO₃ ^-Form dissolution, it is intended to be saturated solution, and make Ca²⁺Concentration and CO₃ ^2-The product of concentration is equal to CaCO₃Solubility product: (Ca²⁺〕×〔CO₃ ^2-)=1 × 10^-9(at 25 DEG C)

Surface water also dissolves the carbon dioxide for being rotted by organic matter and being aoxidized and generate from soil.When this water and stone Lime stone contact, lime stone just gradually dissolve.The example of this effect has the hard water etc. in lime stone solution cavity and well.Work as water When being heated, the Ca that is dissolved in the water²⁺And HCO₃ ^-It is easily converted to CaCO₃.As temperature increases, retain in the solution Ca²⁺Ion and HCO₃The quantity of ion reduces, and generates CaCO₃Precipitating, is shown below:

Ca²⁺+2HCO₃ ^-—→CaCO₃+H₂O+CO₂↑

This is the fundamental reaction that a large amount of " lime " is formed in water heater and boiler.When contain Ca (HCO₃)₂Water evaporation when, Also this reaction occurs, leaves CaCO₃Precipitating.Such as:

MgCO₃+H₂CO₃→Mg²++2HCO₃ ^-

However, MgCO₃Solubility ratio CaCO₃It is slightly larger:

〔Mg²⁺〕×〔CO₃ ^2-)=Ksp=1 × 10^-5(at 25 DEG C)

The scientists and engineers that dirt is formed in different industrial systems are studied it has been determined that although MgCO₃And CaCO₃ It is to form the main component of lime dirt, but they need silica (SiO₂) aluminium oxide (Al₂O₃) or calcium sulfate (CaSO₄) conduct Adhesive is bonded together them, as they in nature the case where.

CaSO₄When being dissolved in the water, with Ca²⁺Ion and SO₄ ^2-The state of ion exists.CaSO₄Solubility with temperature increases Add and increase, until reaching 100F °；Thereafter, increase with temperature, solubility reduces.Therefore, in water heater and boiler CaSO can occur₄Precipitating.SiO₂(silica) and Al₂O₃(aluminium oxide) not instead of ion is electrically opposite for neutral colloid substances Matter is slightly soluble in water.SiO in fresh water₂Content be 1-100mg/L.At high concentration (more than 50mg/L), there is chemical precipitation. Colloidal substance, including SiO₂、 Al₂O₃With clay (SiO₂.Al₂O₃.2H₂O), usually negatively charged when suspending in water.If These negative electrical charges (additional electronics) are neutralized and (remove additional electronics), then colloid occurs cohesion, precipitates, and with CaCO₃、MgCO₃And CaSO₄It combines, forms typical calcium carbonate dirt.The density and hardness of this dirt is with SiO₂、Al₂O₃ And/or CaSO₄Content increases and increases.About 87% earth's crust is made of silicon compound, and silica is then most rich in silicon compound A kind of rich compound.Aluminium is the most abundant metal and the third the most abundant element.The most abundant mineral of aluminium are alum Soil is hydrated alumina (Al₂O₃.3H₂) and a kind of mixture of iron oxide O.Calcium is the 5th kind of the most abundant metal in the earth's crust, Take up an area 3% or more of shell.Pass through the forming process of dirt, it is thus understood that it and the silica in environment and water, aluminium oxide have closely Relationship.Formed calcium carbonate, calcium sulfate, carbonic acid magne-scale the reason of, we with regard to targeted material selection, in such circumstances why Sample solves the problems, such as this.

Summary of the invention

It is an object of the invention to overcome the defect of the prior art, provide a kind of descaling and antiscaling alloy, descaler and its Preparation method solves the scale problems in production engineering, good descaling effect, scale inhibition performance a height of 97.37%, and improves life Efficiency is produced, reduces disposal of pollutants, extends the service life of equipment.

The present invention is implemented as follows:

It is an object of the present invention to provide a kind of descaling and antiscaling alloys, by mass percentage, including the following raw material group Point: copper 71%~75%, nickel 6%~10%, tin 0.5%~3%, zinc 5%~15%, lead 6.5%~10%.

Preferably, the descaling and antiscaling alloy, by mass percentage, including the following raw material component: copper 73.54%, nickel 7.58%, tin 1.66%, zinc 10.63%, lead 6.59%.

The second object of the present invention is to provide a kind of descaler, is made of the descaling and antiscaling alloy.

The third object of the present invention is to provide a kind of preparation method of descaler, and described method includes following steps:

It is step 1, different according to the fusing points of various metals, first nickel and copper are put into proportion in smelting furnace be heated to 1350 DEG C- 1380 DEG C make nickel and copper sufficiently melt mixing, and temperature is then dropped to 750 DEG C -850 DEG C again, tin and lead are put into thawing, to tin After lead sufficiently melts, places into zinc stirring and melt；

Step 2, zinc heat up after melting and are poured；

Material after step 3, moulding by casting is using lathe process, slice and assembling.

Compared with prior art, the invention has the advantages that and effect:

1, descaling and antiscaling alloy provided by the invention, according to the cathodic protection protection philosophy of ship, we begin look for needle To the material in terms of industrial circulating water descaling and antiscaling, by searching for the current potential 0.744v of screening copper, the current potential 0.236v of nickel, tin Current potential 0.14v, the current potential 0.1266v of lead, the current potential 0.7628v of zinc.This above 5 clock element combinations to various in water Fouling components carry out electrochemical action, make the electronics transfer of its various ion, and disengaging becomes monomolecular crystal and is independently present in In water, play the role of antiscale, has energy when flowing through processor rear end in original by the solution of alloy descaling and scale-proof apparatus Old dirt contact, so that its old dirt is obtained electronics, molecular chain rupture, old dirt, which starts to soften, to fall off, and achievees the purpose that scale removal.

Its resisting scales are as follows: because the electronegativity of ion contained by aqueous solution is than the electronegativity of hydrotreater core component Greatly, so the electronics of alloy catalytic enters in aqueous solution, with the viewpoint of galvanic series, hydrotreater core component contains The oxidation potential of element is bigger than the oxidation potential of the ion in aqueous solution.When water flows through alloy body, some electronics enter water-soluble In liquid, in perhaps electron rich violent rotational movement process, instead of some captured ions, such as CO₃ ^2-、 HCO₃ ^-、SO₄ ^2-And OCl^-Deng.These electronics replaced become " free electron " in solution, and these " free electrons " Ion or colloid that can be small by electronegativity, such as Ca²⁺、Mg²⁺、SiO₂、Al₂O₃And Fe₂O₃Deng capture.This makes Ca²⁺、Mg²⁺It is de- From CO₃ ^2-、SO₄ ^2-And HCO₃ ^-, it is formed atomic structure (Ca0, Mg0), as a result, when they are in aqueous solution, they Ionic bond fracture；Or when it is the state of dirt that they, which are in the solid of precipitating, their lattice key fracture.When water heater and When water in boiler is heated or in the case that the basicity of water reaches PH8.4 or more, the increase of electron amount in water Bicarbonate ion is prevented to be decomposed into H⁺And CO₃ ^2-.Colloidal substance, for example, silica, aluminium oxide and rust particle, by obtain or It regains negative electrical charge and remains suspended in solution, be not adsorbed on calcium ion, magnesium ion and iron ion；Obtain negative electrical charge Also cause these colloidal substances by being present in circulating water or be already adsorbed onto these ions on colloidal substance Repel.This hardness effect repelled separation and inhibit these three ions；Hardness in water is always due to Ca²⁺、Mg²⁺、Fe²⁺This The presence of a little ions and caused by.Silica, the aluminium oxide being adsorbed on dirty lattice as binder, also can be from generated It is detached from dirty lattice.In this way, due to Ca0 and Mg0 element and negatively charged SiO₂(-) and Al₂O₃The disengaging of (-), dirt are brilliant Lattice are just gradually destroyed and are eliminated.

The effect that hydrotreater inhibits dirt to be formed may be summarized as follows:

(1)Ca²⁺+2e^-→Ca0

(2)Mg²⁺+2e^-→Mg0

(3)xSiO₂+xe^-→xSiO₂(-)

(4)xAl₂O₃+xe^-→xAl₂O₃(-)

(5)xFe₂O₃+xe^-→xFe₂O₃(-)

(6)HCO₃ ^-+xe^-→HCO₃ ^-+xe^-(CO is resolved into inhibition₃ ^2-、H₂O、CO₂)

The effect for inhibiting dirt to be formed in a device may be summarized as follows:

(7)Ca0+2HCO₃ ^-→Ca0+H₂O+2CO₂

(8)2CO₃ ^2-→2CO₂+O₂+4e^-

(9)2HCO₃ ^-+xe^-→2HCO₃ ^-+xe^-(CO is resolved into inhibition₃ ^2-、H₂O、CO₂)

2, descaling and antiscaling alloy provided by the invention, by mass percentage, including the following raw material component: copper 71%~ 75%, nickel 6%~10%, tin 0.5%~3%, zinc 5%~15%, lead 6.5%~10%, the present inventor is by each metal electricity The alloy formula is developed in the combination of position；The alloy can electrochemical catalysis body in a fluid, when fluid passes through special alloy with Alloy material contact makes solution that electrochemistry occur catalytic action occurs, influences colloid therein distribution, make in liquid phase it is various from Son and impurity are not easy to form dirt, and old dirt is made gradually to fall off, and reduce solution to the oxidation of metal, enhance its reduction, Inhibit metal erosion, solves the scale problems in production engineering, good descaling effect, scale inhibition performance a height of 97.37%；And it improves Production efficiency, reduces disposal of pollutants, extends the service life of equipment.Entire reaction neither adds any substance to stream In body, substance is not also taken away from fluid, only has degasifying effect to the gas in fluid, make calcium ions and magnesium ions in fluid at Unimolecule exists.One heat exchange equipment of average value, which is installed, will save combustion gas expense (552965+ in antisludging equipment of the invention latter year 238041) ÷ 2=395503 member, and the catalytic life of this alloy material is very long, therefore is used continuously more economical.

Detailed description of the invention

Fig. 1 is the Experimental equipment in experimental example 1.

Specific embodiment

Embodiment 1: descaling and antiscaling alloy

1, by mass percentage, the descaling and antiscaling alloy of the present embodiment is grouped as by following group:

Copper 73.54%, nickel 7.58%, tin 1.66%, zinc 10.63%, lead 6.59%.

2, a kind of descaler is made of the descaling and antiscaling alloy.

3, the preparation method of the descaler includes the following steps:

It is step 1, different according to the fusing points of various metals, first nickel and copper are put into proportion in smelting furnace be heated to 1350 DEG C- 1380 DEG C make nickel and copper sufficiently melt mixing, and temperature is then dropped to 800 DEG C again, and tin and lead are put into thawing, abundant to tin-lead It is kept for 3 minutes after thawing, places into zinc stirring and melt；

Step 2, zinc are warming up to 1250 DEG C after melting and start to be poured；

Embodiment 2: descaling and antiscaling alloy

Copper 71%, nickel 6%, tin 0.5%, zinc 12.5%, lead 10%.

2, a kind of descaler is made of the descaling and antiscaling alloy.

3, the preparation method of the descaler includes the following steps:

Embodiment 3: descaling and antiscaling alloy

Copper 75%, nickel 10%, tin 3%, zinc 5%, lead 7%.

2, a kind of descaler is made of the descaling and antiscaling alloy.

3, the preparation method of the descaler includes the following steps:

Embodiment 4: descaling and antiscaling alloy

Copper 71%, nickel 6.5%, tin 1%, zinc 15%, lead 6.5%.

2, a kind of descaler is made of the descaling and antiscaling alloy.

3, the preparation method of the descaler includes the following steps:

Comparative example 1

The alloy of the comparative example is contained in terms of quality %: Cu:55%, Ni:14.74%, Pb:5.57%, Mn: 0.51%, Sn:3.92%, Fe:0.71%, Al:0.1%, Zn:19.3%, remaining be inevitable impurity.

The method for preparing alloy: being put into vacuum drying oven melting 8 hours at 1300~1400 DEG C for above-mentioned metal in proportion, It is cooled to 800 DEG C and keeps the temperature 4 hours, be cooled to room temperature.

1 scale removal effect detection of experimental example

The scale inhibition effect of the physical scale inhibition device of this test primary evaluation the applicant research and development, the scale inhibition done using the alloy Device has carried out the experiment of dynamic analog scale inhibition in Wuhan University's Experiment of Applied Chemistry room, and evaluating that the antisludging equipment is no can be in circulating cooling There is scale inhibition effect in water system or other water systems, provide relevant test data in lab.

One, technical requirements:

For simulate industrial enterprise's recirculated water operating condition, the water quality requirement of this test are as follows: hardness for 8 mmoL/L (wherein Calcium 240mg/L, magnesium ion 48mg/L), chloride ion content 188-200mg/L, conductivity is probably in 2000 μ s/cm, pH8.0- 8.8) scale-inhibiting properties for the antisludging equipment that 1-4 of the embodiment of the present invention is provided under the condition of water quality, are tested.

Two, water sample analysis

1, establishing criteria

SH 2604.12-2001 " industrial circulating cooling water processing anti-incrustation corrosion inhibitor assessment of performance standard "；

DL/T 806-2013 " thermal power plant recirculated cooling water anti-incrustation corrosion inhibitor "；

DL/T 502-2006 " thermal power plant vapour analysis method "；

GB8978-1996 " integrated wastewater discharge standard "；

GB/T11893-1989 " the measurement ammonium molybdate spectrophotometric method of water quality total phosphorus "；

GB/T15451-2006 " measurement of industrial circulating cooling water total alkali and phenolphthalein alkalinity ".

2, using instrument

It is as shown in table 1 by standard regulation:

The test instrument list of table 1

3, material: scale inhibition testing piece material is the sheet glass for covering dirty layer in dynamic anti-scale test.

4, test period: 2018.3.27-2018.4.24

5,2 and table 3 water sample analysis result: be the results are shown in Table according to requiring the main water quality indicator prepared to analyze.

Table 2 passes through the original water quality of pipe fitting

Table 3 is without the original water quality of pipe fitting

The expression of × hardness: 1/2Ca²⁺+1/2Mg²⁺

By table 2 and table 3 it is found that water distribution is substantially within the scope of desired water quality.

Three, laboratory test methods

1, experimental rig

In order to preferably simulate the build environment of scale, experiment uses process flow shown in FIG. 1.

2, experimental procedure

When starting experiment, the glass specimen piece for having had dirt is first cleaned into drying weighing, takes three prints to be put into and has filled It in the system of good water (20 liters), is specifically respectively put into the pipeline of circulation, cyclic water tank and heater body, without Cross in the case of antisludging equipment allow experimental system continuous operation for 24 hours, it is then out of service, heater is closed, to the glass after fouling Glass coupons carry out drying weighing, and parallel test 3 times, obtaining the incrusted average quality of glass specimen on piece institute is X g.So After clean entire circulatory system pipeline, cleaning sink replaces the new experimental water of the equivalent of same water quality, in identical experiment Under the conditions of through the embodiment of the present invention 1 provide antisludging equipment, experiment continuous operation for 24 hours, it is then out of service, close heater, Drying weighing is carried out to the glass specimen piece after fouling, parallel test 3 times, it is incrusted to obtain glass specimen on piece institute Average quality is W g.

3, service condition

Service condition be respectively as follows: flow (1m/s), runing time for 24 hours, the factors such as 60 DEG C of running temperature, it is closed as far as possible.Fortune Every 2h monitors pH, hardness, conductivity, basicity, turbidity and chloride ion in water in row.

4, scale inhibition performance calculation method

The scale inhibition performance Q of antisludging equipment is calculated as follows by test data:

5,4, table 5 and table 6 scale inhibition experimental result: be the results are shown in Table.

Table 4 passes through the data of scale removal pipe fitting

Table 5 is without scale removal pipe fitting test data

The weight change of the various test pieces of table 6

Test piece position	By antisludging equipment △ W1	Without antisludging equipment △ W2
			In circulation pipe	0.0002g	0.0076g
Water tank	0.0006g	0.0075g

(1) contrast table 4 and table 5 be it is found that by antisludging equipment and without the water quality of antisludging equipment, and hardness and basicity, which have, to be subtracted Small trend, less, turbidity variation is irregular for pH value, conductivity and chloride ion variation.

(2) it is found in test, in the test by antisludging equipment, without discovery scale formation inside water tank, and without resistance In the test of dirty device, there is scale formation in water tank inner surface, illustrates that antisludging equipment can be effectively prevented the generation of dirt.

(3) 7 are shown in Table by the scale inhibition performance Q that test data calculates.

7 scale inhibition performance calculated result of table

Test piece position	Scale inhibition performance %
		In circulation pipe	97.37
Water tank	92.00

As shown in Table 7, the descaler that the embodiment of the present invention 1 provides is tested in the case of simulating certain steel mill's cycle water, Scale inhibition performance is 97.37% in circulation pipe, has good scale inhibition effect.

6, certain is simulated using the scale removal alloy that the method embodiment 2-4 descaler provided and comparative example 1 provide It is tested in the case of steel mill's cycle water, scale inhibition performance is as follows:

8 scale inhibition performance calculated result of table

Project	Scale inhibition performance %
		Embodiment 2 (is located in circulation pipe)	97.37
Embodiment 3 (is located in circulation pipe)	95.68
		Embodiment 4 (is located in circulation pipe)	96.21
Comparative example 1 (is located in circulation pipe)	81.46

The detection of 2 energy-saving effect of experimental example

Scale problems contain: reducing after fouling with regard to heat exchange efficiency, energy consumption increases, therefore makees one to energy-saving effect here Analysis.First learn about that the every heat once needed that increases of one ton of water is 1000 kilocalories；What one cube of high burning-value coal gas was discharged Heat is 8600-9000 kilocalorie.I.e. 90 liters of water can be increased to 100 DEG C from zero degree and (not consider to imitate by one cube of high burning-value coal gas Rate loss).Have that above-mentioned to calculate one ton of water to increase the combustion gas once needed be 1000 liters/9000 kilocalories=0.111m³。

What my company provided in October, 2015 in one playscript with stage directions inventive embodiments 1 of the low area's installation of family happiness crystal north heat exchange station Descaler.The equipment is that family happiness crystal city plate changes area in 50 ㎡, 150 DEG C of design temperature, circulation pump power 15KW, flow 100M3/H, water pump of the lift in 32M are installed and used.Test comparison is carried out to equipment on 2 24th, 2016 in use process It is as follows:

One, the Zhengzhou family happiness crystal north heat exchange station area low area He Gao on 2 24th, the 2016 data comparison situations measured such as Under (the primary net import in height area be in parallel)

Table 9

It is 11-6.6=4.4 degree that the height area secondary network temperature difference, which can be calculated, by upper table

It is 0.111m that one ton of water, which increases high burning-value combustion gas once used,³.Release one ton of water phase it is 4.4 degree poor when saved Combustion gas be 0.111 × 4.4=0.4884m³。

The pump capacity of this unit is 100T/h, and usual motor operation will change in 45HZ, the flow of water pump, Under this frequency the flow of water pump saves 0.4884 × 85=41.514m about at 85 ton/hours per hour³；Operation 24 daily It is 41.514 × 24=996.336m that hour, which saves,³；Monthly press 30 days 996.336 × 30=29890.08m of calculating³；It is annual to press 5 The energy conservation of calculating in a month is 29890.08 × 5=149450.4m³

2015 Zhengzhou natural gas recent quotations are as shown in table 9:

Table 10

By the price of table 9 it is found that Heating Period 5 months of 2015 can save 149450 × 3.7=with regard to this equipment for company 552965 yuan.

Two, the data comparison situation that the heat exchange station area low area He Gao in Zhengzhou family happiness crystal north was measured on March 2nd, 2016 is such as Under (the primary net import in height area be in parallel)

Table 11

Having upper table that can calculate the height area secondary network temperature difference is 40.7-38.4=2.3 degree

One ton of water increases high efficiency burnt gas 0.111m once used³.Release one ton of water phase it is 2.3 degree poor when the combustion saved Gas is 0.2553m³。

The pump capacity of this unit is 100T/h, and motor operation will change in 36HZ, the flow of water pump, herein frequency Under rate the flow of water pump saves 0.2553 × 70=17.871m about at 70 ton/hours per hour³；

It is 17.871 × 24=428.904m that operation daily is saved for 24 hours³；Monthly 428.904 × 30 were calculated by 30 days =12867.12m³；It is every year 12867.12 × 5=64335.6m by the energy conservation of calculating in 5 months³。

Heating Period in 2015 can be saved with regard to data of this equipment after decompression on March 2nd, 2016 by this calculating for company About 64335.6 × 3.7=238041.72 member.

Other equipment scaling underdeposit corrosions, shortened equipment life, equipment scaling cleaning charge etc. for the time being not counting, by above-mentioned Data obtain, are averaged a heat exchange equipment and install antisludging equipment of the invention latter year for saving combustion gas expense (552965+ 238041) ÷ 2=395503 member.

This experimental example shows that descaler provided by the invention opens money one in the gas consumption of Heating Period every year and will save one Expensive, while reducing maintenance expense, the service life of equipment is also extended, saves energy consumption, reduce titanium dioxide Carbon emission makes bigger contribution to atmospheric environment is improved with regard to this.

It should be noted that reach embodiment 1 similar for the other embodiment of the present invention (embodiment 2- embodiment 4) Effect will not repeat them here.

Described is only presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on should all include within protection scope of the present invention.

Claims

1. a kind of descaling and antiscaling alloy, which is characterized in that by mass percentage, including the following raw material component: copper 71%~ 75%, nickel 6%~10%, tin 0.5%~3%, zinc 5%~15%, lead 6.5%~10%.

2. descaling and antiscaling alloy as described in claim 1, which is characterized in that by mass percentage, including the following raw material component: Copper 73.54%, nickel 7.58%, tin 1.66%, zinc 10.63%, lead 6.59%.

3. a kind of descaler, which is characterized in that be made of any descaling and antiscaling alloy of claim 1-2.

4. a kind of preparation method of descaler as claimed in claim 3, which is characterized in that described method includes following steps:

Step 1, the fusing point difference according to various metals, are first in proportion put into nickel and copper in smelting furnace and are heated to 1350 DEG C -1380 DEG C nickel and copper is made sufficiently to melt mixing, temperature is then dropped to 750 DEG C -850 DEG C again, tin and lead are put into thawing, filled to tin-lead Divide after melting, places into zinc stirring and melt；

Step 2, zinc heat up after melting and are poured；

5. the preparation method of descaling and antiscaling alloy as claimed in claim 4, which is characterized in that in the step 1, filled to tin-lead Divide after melting and kept for 3 minutes, places into zinc stirring and melt.

6. the preparation method of descaling and antiscaling alloy as claimed in claim 4, which is characterized in that in the step 2, after zinc melts 1200 DEG C -1300 DEG C are warming up to start to be poured.

7. the preparation method of descaling and antiscaling alloy as claimed in claim 4, which is characterized in that in the step 2, the slice It is designed according to pressure, flow, pressure difference.