CN1095158A - A kind of water heater scale-removing method and equipment thereof - Google Patents
A kind of water heater scale-removing method and equipment thereof Download PDFInfo
- Publication number
- CN1095158A CN1095158A CN 93105996 CN93105996A CN1095158A CN 1095158 A CN1095158 A CN 1095158A CN 93105996 CN93105996 CN 93105996 CN 93105996 A CN93105996 A CN 93105996A CN 1095158 A CN1095158 A CN 1095158A
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- China
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- water heater
- electrode
- boiler
- electrolyte
- graphite
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Abstract
A kind of water heater scale-removing method and equipment thereof, utilize the electrolysis scale removal, with water heater (boiler) wall metal is an electrode, carbon electrodes such as graphite are amount one electrode, in water heater, pass to electrolyte, pass to DC current between two electrodes, under electrolysis,, again waste liquid is discharged out of the furnace the incrustation scale dissolving.Utilize the present invention generally can about 20 hours incrustation scale thoroughly be dissolved, and the protection electrode boiler is made in the boiler wall do not corroded, in addition, the electrolyte processing of can regenerating can not cause environmental pollution, and therefore, the present invention is the high-efficiency reliable descaling method in fact.
Description
The present invention relates to the incrustation scale sweep-out method of water heaters such as boiler, boiler.
The boiler scale removal is used pickling always and is shaken two methods now, the former needs repeatedly etch, neutralization, repeatedly cleans, for avoiding boiling water poisonous, cleaning agent want the SILVER REAGENT product, consuming time expend many, and because incrustation scale is loose shape structure, acidic cleaner is quite serious to the boiler tubing corrosion, causes etch pit, the seam of several millimeters deep, brings hidden danger to boiler operatiopn.Lash method is difficult for incrustation scale is removed clean, and easily causes boiler to leak.The objective of the invention is to overcome above-mentioned shortcoming, harmless clean efficient scale removal, and design relevant devices.
The technology of the present invention solution: (technical characterictic is) utilizes the electrolysis scale removal, is an electrode with water heater (boiler) wall metal, and carbon electrodes such as graphite are another electrode, pass to nearly neutral electrolyte in water heater, pass to DC current between two electrodes.Graphite connects positive source, and boiler connects negative pole, and this connection is opposite with the galvanic cell electrode that boiler forms.Utilize the present invention generally can be about 30 hours with the incrustation scale dissolving, and the protection electrode boiler made in the boiler wall do not corroded, in addition, the electrolyte processing of can regenerating can not cause environmental pollution.
Below the invention will be further described by drawings and Examples: Fig. 1 is principle of the invention figure, power supply 1 is the conventional DC power supply, and its parameter is: output 0～36V, electric current 0～10A, preferably output voltage and electric current are adjustable, and the volume of boiler and electrolyte what are looked.The 4T boiler with 0.2～0.5A output better, and electrolyte is faintly acid salt electrolyte commonly used, also can be at NH as NaCl, HCl
4OH, NH
4Select among the Cl etc., concentration is 0.1～2%.Another electrode, and evenly inserts in the boilers 3 with many for well with graphite 2 electrodes.This method also can be used for the removing of metal fever hydrophone, boiler, heat exchanger incrustation scale.PH gets 4～5.
Further improvement of the present invention is: be equipped with the ion exchange resin around positive electrode at the positive electrode place, this resin polarizes in electric field and forms electric dipole moment, because there is Ca in the existence of electric dipole moment, electric field in the electrolyte
++, Mg
++Ca in the diffusion, resin ring
++, Mg
++Concentration is stronger, as long as constantly extract Ca
++, Mg
++The solution that concentration is high then can keep acidity, quickens the incrustation scale dissolving, reduces acid and electrolyte consumption.
General ion exchange resin all can be used as the clean the boiler resin, and resin is contained in the permeable annular container, and electrode inserts and wherein gets final product, and the ion exchange resin consumption also shows the volume of boiler at 1-8kg(), general 4T boiler is with about 5kg.
Claims (5)
1, a kind of incrustation scale sweep-out method of water heater is characterized in that utilizing the electrolysis scale removal, is a guard electrode with water heater (boiler) wall metal; carbon electrodes such as graphite are another electrode; pass to electrolyte in the water heater, pass to 0.1～1A between two electrodes, the dc source that 36V is following.
2, by the described method of claim 1, it is characterized in that electrolyte is faintly acid electrolyte, pH value about 4, when preferred sodium chloride, ammonium chloride, concentration is 0.1～2%.
3,, it is characterized in that graphite electrode is disposed to encircle in constantly extracting in resinbed/molten dirt of gram electrolysis in surrounding electric poles and contain Ca, Mg solution by the described method of claim 1.
4, a kind of water heater descaling equipment is characterized in that using 36V, 5A, dc source be electrolysis power, be guard electrode with the metallic walls, many graphite electrodes in parallel are corroding electrode.
5,, it is characterized in that graphite electrode disposes the resinbed in surrounding electric poles by the described equipment of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105996 CN1095158A (en) | 1993-05-13 | 1993-05-13 | A kind of water heater scale-removing method and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105996 CN1095158A (en) | 1993-05-13 | 1993-05-13 | A kind of water heater scale-removing method and equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1095158A true CN1095158A (en) | 1994-11-16 |
Family
ID=4986024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105996 Pending CN1095158A (en) | 1993-05-13 | 1993-05-13 | A kind of water heater scale-removing method and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095158A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057945C (en) * | 1995-06-01 | 2000-11-01 | 徐宝安 | Method and device for descaling ash removal pipeline of power plant |
| CN105836852A (en) * | 2015-02-02 | 2016-08-10 | 英诺威设计技术株式会社 | Heat exchanger, a purifier, an electrode-containing pipe, a power generation system, a control method for heat exchanger and a scale removing method |
-
1993
- 1993-05-13 CN CN 93105996 patent/CN1095158A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057945C (en) * | 1995-06-01 | 2000-11-01 | 徐宝安 | Method and device for descaling ash removal pipeline of power plant |
| CN105836852A (en) * | 2015-02-02 | 2016-08-10 | 英诺威设计技术株式会社 | Heat exchanger, a purifier, an electrode-containing pipe, a power generation system, a control method for heat exchanger and a scale removing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |