CN102627358A - Adjustable-frequency electromagnetic descaling instrument - Google Patents

Abstract

The invention discloses an adjustable-frequency electromagnetic descaling instrument, which comprises a singlechip main control board, wherein the singlechip main control board is electrically connected with a coil current and power supply voltage measuring module, an LED (Light-Emitting Diode) backlight control module, a PC (Personal Computer) communication module, an alarm module, a parameter giving unit and a current and voltage detection control unit respectively; the LED backlight control module is further connected with a lattice liquid crystal display; the singlechip main control board is connected with a coil power supply control module through a D/A (Digital to Analog) module; a coil power amplification triggering module is connected with a coil power amplifying module; and the coil power amplifying module is connected with the coil power supply control module. The descaling instrument is suitable for descaling and preventing scale under various field running environments and water quality conditions, is arranged in a field wound form, does not damage field pipelines, has the maximum output power of up to 9KW and maximum adaptation pipe diameter of 3 meters, is suitable for the maximum total water hardness of 4,000 mg/L, is suitable for being applied in medium and large-sized industrial enterprises, and is efficient and environmentally-friendly.

Description

A kind of frequency modulation electromagnetism descaler

Technical field

The present invention relates to a kind of scale removal and scale prevention device of industrial water equipment, particularly a kind of frequency modulation electromagnetism descaler.

Background technology

Frequency modulation electromagnetism descaler is mainly used in scale removal, the antiscale problem of various watering equipments such as the vaporizer, boiler, the recycle system and the chemical industry that solve the food aspect, oil, pipeline; At present, antiscaling, descaling is still global a great problem, and the descaling and antiscaling technology of worldwide using at present mainly contains two kinds, i.e. chemical cleaning and physics descalling technique.

(1) chemical cleaning: comparatively widely used descaling and antiscaling method is in water, to add to have the chemical agent (being Scale inhibitors) and the ion exchange method of scale inhibition function.The inhibitor mechanism of Scale inhibitors is that but various fouling crystal grain normal growths are assembled growth with the upset intergranule by standard state in the inhibition water, thereby reaches the descaling and antiscaling purpose; Ion exchange method is through the calcium ion in the use sodium ion replacement water, and reaches the scale removal purpose.

Chemical cleaning mainly exists three big shortcoming: A, production cost high: a medium-and-large-sized related production enterprise, like power plant or sewage work, the annual Scale inhibitors of throwing in for scale removal, antiscale is hundreds of thousands of yuan or up to millions of yuans at least.B, have pollution problem: because of need add chemical agent in production unit, therefore to environment or equipment inevitable constitute to some extent pollute or etching apparatus.The use of C, every kind of Scale inhibitors has great specific aim, just the water of certain water quality etc. is had scale inhibition, anti-scaling action.

(2) physics scale removal: chemical cleaning has the cost height, the difficulty that existence pollution and with strong points etc. can't overcome.The physics descalling technique that grew up has in recent years been opened up new approach for fundamentally solving the descaling and antiscaling problem.The physics descaling method have cost low, do not have advantages such as pollution, highly versatile.The research of physics scale removal at present mainly concentrates on various physical fields aspects such as sound field, magnetic field, electric field.The physics descalling technique that has come into operation at present has:

1. ultrasound wave descaling is technological; 2. ION-STICK treater; 3. electromagnetism scale removal.

In three kinds of technology, the electromagnetism descalling technique is than the tool advantage and use more extensive.Water is made up of a Sauerstoffatom and two Wasserstoffatomss, and 80% water molecules is the form that is become water clusters by hydrogen bond association in the water usually, and this water clusters is lower to the dissolution degree of lime carbonate (incrustation scale); Make incrustation scale be easy to separate out, frequency modulation electromagnetism descaler is to utilize electromagnetism frequency conversion resonance technique in water, to apply a frequency spectrum extremely wide pulse-repetition identical with its natural frequency, thereby causes that water molecules produces resonance; The result of resonance breaks off hydrogen bond, makes water clusters become one polar water molecules; Thereby improved the reactivity of water and to the solubleness of incrustation scale, water molecules minimum below 20 microns can permeate, surround, loosen, dissolve, remove the old dirt in the heat exchange systems such as water-heater, boiler, simultaneously; The calcium ion and the carbanion that float in the water collide each other, form special aragonite calcium carbonate body, its no electric charge in surface; Be suspended in the mobile water, therefore, can not be adsorbed on again on the pipeline; Take away along with flowing of water, thereby reach the purpose of antiscale.

Its water quality parameter of various occasions (comprising carbonate hardness, total alkalinity, pH value, specific conductivity etc.), water temperature, flow velocity, pipe diameter, pipe material that needs descaling and antiscaling etc. is not quite similar.Make frequency modulation electromagnetism descaler reach certain or best scale removal mill dirt effect; Must be among descaler with above parameter setting; Evidence, the Changing Pattern of frequency signal, amplitude etc. directly affect descale effect, obtain best scale removal mill dirt effect; Then must know the funtcional relationship between frequency signal and water quality, flow velocity and the pipe parameter, this also is the key problem in technology of this device.

Find that its common feature is that (1) mounting means is the method bar, need cut off on-the-spot pipeline when promptly installing after technical parameter, mounting means and the water quality that is adapted to of the electromagnetism descaler of comprehensive each manufacturer and the caliber parameter; (2) the equipment output rating is on the low side, about maximum 500W; (3) corresponding with output rating, about maximum adaptation pipe diameter 500mm; (4) adapt to determining total hardness of water less than 1000mg/L; (5) adapt to flow rates less than 2.8m/s; (6) magnetized water is short working lipe, about about 3 hours.

The disadvantage of homemade descaler is, will cut off on-the-spot pipeline during installation, new project only, this to some the enterprise of the production and operation be unallowed; Homemade in addition descaler adaptation pipe diameter and water hardness scope are little also to be very important shortcoming; This to a great extent limit the Application Areas of homemade descaler; Especially on-the-spot condition of water quality abominable (like oil production) and need large diameter pipeline (like the fuel-burning power plant; About 2.5 meters of pipe diameter) occasion, existing homemade descaler is beyond one's ability, homemade scale removal instrument only is applicable to the application of medium-sized and small enterprises.

Summary of the invention

In order to overcome the shortcoming of above-mentioned prior art, the purpose of this invention is to provide a kind of frequency modulation electromagnetism descaler, scale removal and antiscaling effect mainly be carried in coil on the FM signal of load current relevant, theory and practice proves that all the main effect of FM signal is:

(1) variation range of frequency signal should contain the bond energy frequency spectrum that is prone to the fouling molecule in all water, and the bond energy value of this frequency spectrum has a very wide scope, is about 10 ^-4EV～2eV is so the frequency range of FM signal also should be mapped with the bond energy spectral change scope of fouling molecule;

(2) scale removal and antiscaling effect also be carried in water in magnetic field energy relevant, and magnetic field energy was both relevant with the change in current frequency, and was relevant with size of current again, and according to current formula

(U in the formula _mFor being added in the voltage max on the coil, R is the resistance of winding wire, and R＜＜ω L, L is the inductance of coil), after voltage of supply and winding around parameter are fixing, electric current I _mBig I controlled through frequency or voltage of supply, that is to say that scale removal and antiscaling effect depend on the Changing Pattern of FM signal fully.

The present invention adapts to scale removal and the antiscale under various on-the-spot running environment and the condition of water quality, and is installed as on-the-spot wound form, and pipeline does not destory the scene; Peak power output can reach and be 9KW; The maximum adaptation caliber is 3 meters, adapts to determining total hardness of water and is 4000mg/L to the maximum, has overcome the shortcoming of homemade descaler and has widened its Application Areas; Be applicable to the application of large and medium-sized industrial enterprise, high-efficiency environment friendly.

To achieve these goals, the technical scheme that the present invention adopted is:

A kind of frequency modulation electromagnetism descaler; Comprise micro-chip master control board MC, said micro-chip master control board MC be electrically connected with respectively coil current and voltage of supply measurement module IV,, LED-backlit control module LE, PC communication module RS, alarm module, parameter give cell and electric current, voltage detecting control unit; Said LED-backlit control module LE also is connected with lattice lcd and shows LCM; Said micro-chip master control board MC is through D/A module connecting coil power power-supply control module PW; Through coil power amplifier trigger module TR connecting coil power amplifier module PFD, said coil power amplification module PFD and coil power energy supply control module PW interconnect.

Said coil power amplifier trigger module TR is used for the FM signal trigger winding power amplifier module PFD with micro-chip master control board MC output, makes FM signal become the frequency modulation electric current after the power magnification and is loaded on the power winding;

Said coil power power module PW; Mainly be to confirm the coil power power source voltage according to the flow velocity of on-the-spot caliber and water, this voltage is calculated and is converted it into the output voltage of the standard signal control coil power power-supply module of 0～10mA automatically by micro-chip master control board MC through on-the-spot setup parameter.

Said coil power amplification module PFD is connected with power winding.

Said parameter is given cell, is used for the user the various water quality parameters in scene (comprising carbonate hardness, sulphate hardness etc.), flow velocity, pipe diameter, pipe material etc. are set to instrument;

Said alarm module is used for undercurrent excessively, the under-voltage warning excessively of plant failure warning or power winding;

Said electric current, voltage detecting control unit are used for detecting in real time electric current and voltage on the power winding, supply principal controller to participate in algorithm optimization and generate the optimum frequency signal;

Said power winding is surrounded on pipeline.

The invention has the beneficial effects as follows:

(1) this device is set to all water quality and production technique and pipe parameter among the instrument by the user, generates control algolithm and the FM signal with best descale effect automatically through software then, has strengthened the versatility and the substitutability of equipment;

Pipeline does not destory the scene when (2) installing;

(3) output rating is big, and maximum can reach and be 9KW, adapts to the caliber maximum and can reach 3 meters;

(4) adapt to determining total hardness of water and be 4000mg/L to the maximum, can be used for the water quality rugged environment, widened its Application Areas, be applicable to the application of medium size industrial enterprise.

In a word; This device Application Areas is extensive; Market outlook are wide, have remarkable social benefit and economic benefit, to fundamentally solving foodstuffs industry and other descaling and antiscaling problems like oil, chemical industry, Industrial Boiler, water pipeline and various distillation plants; For environmental protection, reduction production unit running cost and maintenance of the equipment expense, raising service life of equipment etc. has great realistic meaning.

Once the FM signal of German frequency modulation electromagnetism descaler had been carried out actual measurement to different water quality and pipe parameter; A large amount of on-site experience data have been obtained; And setting up a multivariate universality funtcional relationship between frequency signal and water quality and the pipe parameter, the user just can generate the frequency signal with best descaling and antiscaling effect among only needing water quality and pipe parameter be set to instrument automatically.

The principle of work of frequency modulation electromagnetism descaler is to generate best frequency signal (mathematical model) automatically according to user's water quality and mounting condition parameter, reaches best tartar preventing iron tartar effect; The Changing Pattern of frequency signal, current amplitude (the average output power size of current amplitude decision coil) etc. directly affect descale effect; The technological core of this appearance is exactly a universality mathematical model of setting up between customer parameter and the FM signal, to adapt to scale removal and the antiscale under various on-the-spot running environment and the condition of water quality.

Description of drawings

Fig. 1 is a frequency modulation electromagnetism descaler electrical installation schematic diagram.

Fig. 2 is a micro-chip master control board schematic circuit.

Fig. 3 is a coil power amplifier trigger module.

Fig. 4 is the coil power amplification module.

Fig. 5 is coil current and voltage of supply measurement module.

Fig. 6 is the PC communication module.

Fig. 7 is a liquid-crystal display LED-backlit pilot circuit.

Fig. 8 is the coil power energy supply control module.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.

With reference to Fig. 1; A kind of frequency modulation electromagnetism descaler; Comprise micro-chip master control board MC, said micro-chip master control board MC be electrically connected with respectively coil current and voltage of supply measurement module IV,, LED-backlit control module LE, PC communication module RS, alarm module, parameter give cell and electric current, voltage detecting control unit; Said LED-backlit control module LE also is connected with lattice lcd and shows LCM; Said micro-chip master control board MC is through D/A module connecting coil power power-supply control module PW; Through coil power amplifier trigger module TR connecting coil power amplifier module PFD, said coil power amplification module PFD and coil power energy supply control module PW interconnect.

Referring to Fig. 2, micro-chip master control board MC is the core component of this patent, and is on-the-spot for specific scale removal, through parameter to cell with customer parameter such as pipe diameter D ₀, voltage of supply U _m, water flow velocity V, water hardness Y, stitch length l etc. be set to and go in the instrument, generate optimum frequency wave PWM1 and PWM2 according to system mathematic model and corresponding algorithm then, export coil power amplifier trigger module TR to; Micro-chip master control board MC is also bearing coil current and voltage detecting, is used in time participating in the calculation of parameter of model and shows that through lattice lcd LCM exports demonstration in real time or crosses undercurrent overvoltage/undervoltage warning etc.

In addition; Micro-chip master control board MC is according to the actual field parameter; Automatically calculate the optimum operating voltage of coil,, generate the output voltage of the standard signal control coil power power-supply module PW of 0～10mA through the D/A conversion; According to user's needs, micro-chip master control board MC can realize real-time communication or the parameter setting with PC communication module RS simultaneously.

Referring to Fig. 3, coil power amplifier trigger module TR receives frequency control signal PWM1 and PWM2 from micro-chip master control board MC, triggers the height/lower level (HO/LO) that drives to coil power amplification module PFD output simultaneously; Mainly comprise 8 high/low side two channels driving mechanism IR2110, form one group for wherein per two, totally 4 groups of (A1B1, A2B2; A3B3, A4B4), this 4 set drive is 4 groups of bridge circuits (G1, G2 of drive coil power amplifier module PFD respectively; G3, G4 sees Fig. 4), 4 IGBT pipes are arranged on each bridge; 4 IGBT pipes are divided into two groups by diagonal lines, and synchronization is closed for one group, and one group of conducting has just formed the exchange current that direction changes like this in coil.

Referring to Fig. 4; Coil power amplification module PFD, this module comprises 4 groups of power amplifier bridges altogether, every group of 4 IGBT pipe; Power winding of every group of power amplifier band; 4 groups of power amplifiers receive the corresponding height/lower level (HO/LO) that triggers driving mechanism from coil power amplifier trigger module TR simultaneously, make 4 groups of power amplifier bridge synchronous workings, change synchronously to guarantee 4 groups of EM field in the coil.

Referring to Fig. 5, coil current and voltage of supply measurement module IV are used to detect the WV of the working current and the power power-supply of 4 maps, the coil current metering circuit, and its function is that ac current signal is changed into d. c. voltage signal.Totally 4 groups in this circuit; Every group comprises Hall current sensor HNC50B; Accurate full-wave rectifying circuit (being made up of A1, A2,2CP13 etc.), low-pass first order filter (among the figure, CA3140 etc.), the coil power tension measuring circuit is used for the WV of real-time detection power power supply.

Referring to Fig. 6, PC communication module RS can realize real-time communication or parameter setting with upper PC according to user's needs master control board.

Referring to Fig. 7, lattice lcd shows LCM, adopts OCM320240, is used for showing electric current, the power power-supply WV of 4 maps in real time and carrying out on-site parameters setting etc.Because of this appearance is installed near the pipeline scene, unattended during works better, so the LED-backlit circuit of liquid-crystal display is not at ordinary times worked, to prolong the work-ing life of liquid-crystal display, the LED-backlit of liquid-crystal display is controlled by liquid-crystal display LED-backlit circuit.

Referring to Fig. 8, coil power energy supply control module PW, the on-site parameters especially flow velocity of caliber and water are different, and the desired power power source voltage is also different; Coil power energy supply control module PW; Mainly be to confirm the coil power power source voltage according to the flow velocity of on-the-spot caliber and water, this voltage is calculated and is converted it into the output voltage of the standard signal control coil power power-supply module of 0～10mA automatically by the micro-chip master control board through on-the-spot setup parameter.

Parameter is given cell, is used to carry out setting or the modification of on-site parameters etc.Parameter is used to set water hardness, mounting condition parameter (comprising flow velocity, pipe diameter spool length etc.) to cell.

Alarm module with output alarm, breaks off protection etc. by photodiode indication or external rly. when a map overcurrent, undercurrent or power voltage voltage are undesired, the trouble spot is shown by LCM points out.

Power winding is converted into the frequency modulation EM field with the power signal of frequency signal power amplifier output and is loaded in the water medium in the middle of the pipeline through this coil and goes, and reaches the descaling and antiscaling purpose through the interaction with water molecules, scale forming matter and tube wall.

Theoretical derivation has provided and has been used for the estimation frequency variation range as follows and system frequency signal general mathematical model is following:

$\mathrm{\&omega;}=\sqrt{\frac{8\mathrm{MN}}{{3\mathrm{<figure-callout\; id="0"\; label="D"\; filenames="HSA00000696971200011.png,HSA00000696971200041.png"\; state="\{\{state\}\}">D</figure-callout>}}_0^{2}L}}\frac{U_m}{\sqrt{V}}\mathrm{\&phi;}\left(Y\right)---\left(1\right)$

$\mathrm{\&phi;}\left(Y\right)=\sqrt{\frac{(1-Y){\mathrm{\&rho;}}_0^3/{\mathrm{\&tau;}}_0+Y[x_0{\mathrm{\&rho;}}_1^3/\left({\mathrm{<figure-callout\; id="1"\; label="x"\; filenames="HSA00000696971200051.png,HSA00000696971200061.png"\; state="\{\{state\}\}">x</figure-callout>}}_1{\mathrm{\&tau;}}_1\right)]}{(1-Y)({\mathrm{<figure-callout\; id="0"\; label="E"\; filenames="HSA00000696971200011.png,HSA00000696971200041.png"\; state="\{\{state\}\}">E</figure-callout>}}_0+{\mathrm{\&Delta;E}}_0)+Y({\mathrm{<figure-callout\; id="1"\; label="E"\; filenames="HSA00000696971200051.png,HSA00000696971200061.png"\; state="\{\{state\}\}">E</figure-callout>}}_1+{\mathrm{\&Delta;E}}_1)(x_0/x_1)}}---\left(2\right)$

$I_m=\frac{{\mathrm{<figure-callout\; id="2"\; label="U\; m\; R"\; filenames="HSA00000696971200021.png,HSA00000696971200051.png"\; state="\{\{state\}\}">U</figure-callout>}}_m}{\sqrt{R^{}}}---\left(3\right)$

$L=\frac{{\mathrm{\&mu;}}_0{\mathrm{<figure-callout\; id="2"\; label="m"\; filenames="HSA00000696971200021.png,HSA00000696971200051.png"\; state="\{\{state\}\}">m</figure-callout>}}^2\mathrm{\&pi;}{\mathrm{<figure-callout\; id="0"\; label="D"\; filenames="HSA00000696971200011.png,HSA00000696971200041.png"\; state="\{\{state\}\}">D</figure-callout>}}_0^2{\mathrm{<figure-callout\; id="3"\; label="l"\; filenames="HSA00000696971200031.png,HSA00000696971200051.png"\; state="\{\{state\}\}">l</figure-callout>}}^3}{{4d}^2({\mathrm{<figure-callout\; id="0"\; label="D"\; filenames="HSA00000696971200011.png,HSA00000696971200041.png"\; state="\{\{state\}\}">D</figure-callout>}}_0^2+l^2)}---\left(4\right)$

Formula (1) is a frequency distribution function, and in the formula: M (=4) is the coil winding number, and N (=2) is smallest effective magnetization number of times, U _mBe the voltage max on the coil, D ₀Be the internal diameter of pipeline, L is the single group coil inductance, and (=0.1～4m/s) φ (Y) is molecular bond energy/water hardness distribution function to V.

In the formula (2): E ₀Be a small bundle of straw, etc. for silkworms to spin cocoons on water molecules hydrogen bond Average bond energy, E ₀=0.25eV, Δ E ₀Be the hydrogen bond energy variable quantity, Δ E ₀≈-0.2～0.2eV; E ₁Be lime carbonate (CaCO ₃) calcium sulfate (CaSO ₄) etc. average apparent activation, E ₁=2eV, Δ E ₁Be apparent activation energy variable quantities such as lime carbonate, calcium sulfate, Δ E ₁≈-1.5～1.5eV; Y is the water hardness value, ρ ₀For being group's a small bundle of straw, etc. for silkworms to spin cocoons on water molecules mean radius, ρ ₀=1nm, τ ₀(=3.84 * 10 ^-7S) be group's a small bundle of straw, etc. for silkworms to spin cocoons on water molecules magnetizing time constant, x ₀(=18) are molecular weight water, x ₁(=100) are lime carbonate molecule amount, ρ ₁Be the grain equal radius ρ of Jinping such as lime carbonate, calcium sulfate ₁=20nm, τ ₁(=6.4 * 10 ^-6S) be lime carbonate magnetizing time constant.

In the formula (3): R is single group wire resistance.

In the formula (4): μ ₀Be the magnetic permeability of water, d (=3.5mm) be the diameter of winding wire, l is a stitch length, and m (=1～4) is the winding number of plies of coil, and the design gets m=2.

Formula (1) is the most important theories basis of design frequency modulation electromagnetism descaler, mainly is that flow velocity, water hardness and the stitch length etc. according to caliber, voltage of supply, water calculate mid-frequency, on-the-spot then water hardness and Δ E ₀And Δ E ₁Variation range provide the frequency span of frequency distribution function.Wherein on-site parameters such as pipe diameter D ₀, voltage of supply U _m, water flow velocity V, water hardness Y, stitch length l etc. need be set in the instrument and go.

Calculating shows for caliber D ₀The pipeline of=0.02m～3m, water flow velocity V=0.1～4m/s, water hardness Y=50～4000mg/L, voltage of supply U _m=40～220VDC, but calculated rate span f ≈ ω/2 π=50Hz～30000Hz then.

It is pointed out that for certain water quality to get water hardness actual be a comprehensive statistics value to the detector tolerance in the laboratory; Certain water quality is said in strictness; Its hardness is an overall target, has certain distribution relation between the activation energy of hardness number and group's a small bundle of straw, etc. for silkworms to spin cocoons on water molecules hydrogen bond bond energy and various fouling molecules, and promptly water hardness is a distribution function; It is corresponding with the activation energy nature frequency spectrum of the hydrogen bond energy of certain limit and easy fouling molecule; Will reach certain scale removal, antiscaling effect like this, the frequency of FM signal also should cover the frequency spectrum of all hydrogen bond energies and fouling molecule, thereby the value within the specific limits of the ω in the formula (1).

In addition, the power of load coil and maximum current can calculate with following formula respectively

$Q=\frac{{\mathrm{<figure-callout\; id="2"\; label="U\; m"\; filenames="HSA00000696971200021.png,HSA00000696971200051.png"\; state="\{\{state\}\}">U</figure-callout>}}_m^{}}{2\mathrm{\&omega;L}}---\left(3\right)$

$I_m=\frac{{\mathrm{<figure-callout\; id="2"\; label="U\; m\; R"\; filenames="HSA00000696971200021.png,HSA00000696971200051.png"\; state="\{\{state\}\}">U</figure-callout>}}_m}{\sqrt{R^{}}}---\left(4\right)$

Coil inductance in the formula

If get d=3.5mm, U _m=78V, m=2, D ₀=0.2m, l=0.5m, f=ω/2 π=200Hz～25000Hz, L=0.0056H then, Q=3.5W～432W, I _m=0.1A～11A.

Parameter is used to set water quality parameter, pipe parameter to cell.The key problem in technology of this appearance is a versatility mathematical model (seeing formula (1)-Shi (4)) of setting up between customer parameter and the FM signal, to adapt to scale removal and the antiscale under various on-the-spot running environment and the condition of water quality.

This appearance adopts singlechip technology, and system mathematic model is passed through the output that algorithm is realized FM signal, and through power magnification FM signal is loaded on the power winding, and frequency modulation electromagnetism descaler electrical installation schematic diagram is referring to accompanying drawing 1.

Each functional module explanation is as follows among Fig. 1:

(1) the micro-chip master control board (MC) of frequency modulation electromagnetism descaler is the most key core component of this device; Be mainly used in water quality and the on-site parameters set according to the user and generate the FM signal with best descaling and antiscaling effect according to system's general mathematical model automatically through algorithm optimization, coils power amplifier trigger module (TR) and coil power amplification module (PFD) are loaded into FM signal on the coil.So-called algorithm carries out software with the mathematical model that formula (1)-Shi (4) provides exactly to be realized.On-the-spot for specific scale removal, the on-the-spot processing parameter in this model all is a definite value, and controlled physical quantity has only frequencies omega and voltage of supply U _mOn-the-spot processing parameter will be set in the instrument in advance and go, and these parameters comprise pipe diameter D ₀, the flow velocity V of water, water hardness Y, stitch length l (generally getting l=0.5m), water hardness Y, wait to be set in the instrument and go.All the other parameters all are general constant, need not set, and the numerical values recited front provides.There has been formula that these parameters can provide according to model to go out best mid-frequency and by frequency range that molecular bond energy/water hardness distribution function φ (Y) is determined through computed in software.

Specific algorithm is realized explanation as follows:

With on-site parameters D ₀, V, Y, l, Y ——>Be set to —— > in the instrument; Get Δ E temporarily ₀=Δ E ₁=0, calculate mid-frequency according to formula (1)

——>Get Δ E ₀≈-0.2eV, Δ E ₁≈-1.5eV calculates the higher limit of molecular bond energy/water hardness distribution function φ (Y), calculates change of frequency higher limit ω thus _Max——>Get Δ E ₀≈ 0.2eV, Δ E ₁≈ 1.5eV calculates the lower value of molecular bond energy/water hardness distribution function φ (Y), calculates change of frequency lower value ω thus _MinMid-frequency has been arranged

, upper frequency limit value ω _MaxAnd the limit value ω of frequency elder generation _MinJust the frequency range of FM signal.

The theory explanation of descaling and antiscaling mechanism: the electromagnetism descaler is the high-frequency electromagnetic vibration that utilizes electronic circuit to produce; Between fixed the two poles of the earth, form the higher frequency electromagnetic field of certain intensity; Water coolant is after absorbing high-frequency electromagnetism field energy, and water molecules is constantly polarized repeatedly as dipole and produces distortion, distortion, counter-rotating, vibration, forms the active very strong unit molecule or the water of the sociable body state of little meaning; Thereby the moment of dipole between the enhancing water molecules; Promote water to becoming the effect of dirty material and component thereof, change the physicals that has form and relevant ions and water molecules and other ionic bonding states of deposited material in the water coolant, the time lengthening that fouling crystal deposition thing is separated out; And separate out with tiny unbodied particle, finally reach scale inhibition and the loosening incrustation scale that has generated that peels off.

Evidence, the Changing Pattern of frequency signal, load power etc. directly affect descale effect, obtain best scale removal mill dirt effect, then must know the funtcional relationship between frequency signal and water quality, flow velocity and the pipe parameter.This funtcional relationship is the general mathematical model (seeing formula (1)-Shi (4)) of system

In general, its water quality parameter of various occasions (comprising carbonate hardness, total alkalinity, pH value, specific conductivity etc.), flow velocity, pipe diameter, pipe material that needs descaling and antiscaling etc. is not quite similar.Make frequency modulation electromagnetism descaler reach certain or best scale removal mill dirt effect, must be among descaler with above parameter setting, promptly frequency modulation electromagnetism descaler has certain specific aim to the user.

Water quality parameter comprises: total hardness (mmol/L), carbonate hardness (mmol/L), total alkalinity (mmol/L), pH value, Fe ³⁺(mg/L), water conductivity (μ s/cm) etc.Pipe parameter comprises: pipe diameter (mm), length of pipeline (m), flow velocity (m/s), pipe material etc.

This device has following advantage specifically

(1) all water quality and production technique and pipe parameter are set among the instrument by user oneself, generate control algolithm and the FM signal with best descale effect automatically through software then, have strengthened the versatility and the substitutability of equipment;

(2) after above-mentioned parameter was set, by the output rating of algorithm automatic adjusting and opertaing device, promptly an equipment had overcome the shortcoming of the single output rating of ECS Company products, thereby has strengthened the versatility of equipment through the exportable multiple power of customer parameter;

(3) adopt the giant-screen matrix liquid-crystal display screen, the man-machine interface during as user's setup parameter with the time real monitoring the (being mainly used in electric current and the voltage of monitoring load coil etc.);

(4) increased PORT COM, this appearance can directly link to each other with the terminal of master control room through communication cable, can on interrupting device, keep watch on or revise controlled variable and the time reality monitoring equipment running condition.

The technical specifications and the parameter of this device are following:

This descaler is domestic has installed up to a hundred, and respond well.There are oil field, fuel-burning power plant in main installing area, and steel mill etc. all are equipped with this frequency modulation electromagnetism descaler like Shengli Oil Field, Daqing oil field, Dagang Oilfield, fuel-burning power plant, Xuzhou etc., and result of use is very good.

Claims (8)

1. frequency modulation electromagnetism descaler; Comprise the micro-chip master control board; Said micro-chip master control board is electrically connected with coil current and voltage of supply measurement module, LED-backlit control module, PC communication module, alarm module, parameter respectively and gives cell and electric current, voltage detecting control unit; Said LED-backlit control module also is connected with lattice lcd and shows; Said micro-chip master control board is through D/A module connecting coil power power-supply control module, and through coil power amplifier trigger module connecting coil power amplifier module, said coil power amplification module and coil power energy supply control module interconnect.

2. a kind of frequency modulation electromagnetism descaler according to claim 1; It is characterized in that; Said coil power amplifier trigger module is used for the FM signal trigger winding power amplifier module with micro-chip master control board output, makes FM signal become the frequency modulation electric current after the power magnification and is loaded on the power winding.

3. a kind of frequency modulation electromagnetism descaler according to claim 1; It is characterized in that; Said coil power power module; Mainly be to confirm the coil power power source voltage according to the flow velocity of on-the-spot caliber and water, this voltage is calculated and is converted it into the output voltage of the standard signal control coil power power-supply module of 0～10mA automatically by the micro-chip master control board through on-the-spot setup parameter.

4. a kind of frequency modulation electromagnetism descaler according to claim 1 is characterized in that said coil power amplification module is connected with power winding.

5. a kind of frequency modulation electromagnetism descaler according to claim 1 is characterized in that, said parameter is given cell, is used for the user the various water quality parameters in scene, flow velocity, pipe diameter, pipe material etc. are set to instrument.

6. a kind of frequency modulation electromagnetism descaler according to claim 1 is characterized in that, said alarm module is used for undercurrent excessively, the under-voltage warning excessively of plant failure warning or power winding.

7. a kind of frequency modulation electromagnetism descaler according to claim 1; It is characterized in that; Said electric current, voltage detecting control unit are used for detecting in real time electric current and voltage on the power winding, supply principal controller voltage detecting control unit; Be used for detecting in real time electric current and voltage on the power winding, supply principal controller to participate in algorithm optimization and generate the optimum frequency signal.

8. a kind of frequency modulation electromagnetism descaler according to claim 1 is characterized in that said power winding is surrounded on pipeline.

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