US277122A - Incrustation-preventive - Google Patents
Incrustation-preventive Download PDFInfo
- Publication number
- US277122A US277122A US277122DA US277122A US 277122 A US277122 A US 277122A US 277122D A US277122D A US 277122DA US 277122 A US277122 A US 277122A
- Authority
- US
- United States
- Prior art keywords
- boiler
- eucalyptus
- scale
- incrustation
- water
- 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.)
- Expired - Lifetime
Links
- 244000166124 Eucalyptus globulus Species 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001802 infusion Methods 0.000 description 6
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 3
- 239000001263 FEMA 3042 Substances 0.000 description 3
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002258 tannic acid Polymers 0.000 description 3
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 3
- 229940033123 tannic acid Drugs 0.000 description 3
- 235000015523 tannic acid Nutrition 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 241001466077 Salina Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000000266 injurious effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/43—Solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
Definitions
- My invention relates to certain improvements in the prevention or removal of scale in steam-boilers.
- the eucalyptus may be placed directly into the boiler, or an infusion may be made separately and then supplied to the boiler when needed, as .before described.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paper (AREA)
Description
UNITED STATES PATENT, OFFICE.-
GEORGE DOWNIE, OF SALINAS, CALIFORNIA.
lNCRUSTATlON-PREVENTIVE.
SPECIFICATION forming part of Letters Patent No. 277,122, dated May 8, 1883.
Application filed October 9, 1882 (No specimens.) I I To all whom it may concern Be it known that I, GEORGE DOWNIE, of Salinas, county of Monterey, State of California, have invented an Improvement in the Prevention and Removal of Scale in Boilers; and I hereby declare the following to be a full, clear, and exact description thereof.
My invention relates to certain improvements in the prevention or removal of scale in steam-boilers.
It consists in introducing into the boiler an infusion, decoction, or other preparation of encalyptus, either the wood, bark, leaves, blossoms, and capsules, or any portion which will produce the desired efiect, said infusion either made separately and afterward introduced into the boiler, prepared in thefeed-Water before its introduction into the boiler, or prepared within the boiler itself, so as to remove any scale which may have been already formed, or to so afl'ect the water as to prevent the incrustation of the boiler by any substance which may be held in solution or suspension in the water which is used in the boiler, and at the same time avoid any injurious effects to the shell of the boiler.
There are many modes of applying the eucalyptus, such as boiling the leaves or other parts, making a cold infusion, or in other ways extracting the desired substance, which may afterward be introduced to the boiler, as required, either with the feed-water or by a cup or chamber, into which it may be placed, and by suitable cocks admitted to the boiler; or the leaves or other parts may be placed. in a perforated tube, basket, or chamber, which can be introduced into the boiler through a handhole or other opening, so that the water will act directly upon the material and extract the valuable portion.
In some cases where there is a heater connected with the boiler I put the eucalyptus into the hot water which accumulates within the tank, and the infusion thus made is sent to the boiler by the feed-pump or other apparatus. By this means the heated water intended for use within the boiler is impregnated with the properties of the eucalyptus, and is thus caused to part with the scale-forming substanccs,ywhich are deposited in a harmless form and prevented fromsettling as scale.
In case no heater is employed the eucalyptus may be placed directly into the boiler, or an infusion may be made separately and then supplied to the boiler when needed, as .before described.
If the eucalyptus, in the form of leaves or fine twigs, be placed directly in the boiler, it
,will be preferable to inclose it in a basket or net-work of some convenient description to prevent its becoming scattered, and so that it may be easily removedwhe'n it becomes spent.
The charge to be used and the frequency of its renewal-will depend upon the size of the boiler and the character of the water used, this being easily determined by inspection.
I am aware that there is tannin or tannic acid inherent in the eucalyptus, and I am also aware that tannic acid in'various forms has been used to remove scale from boilers. I am also aware that it is a well-reccgnizedfact that tannic acid, when-used for any such purpose, materially injures the boiler in the absence of any other element to counteract the efl'ect of the tann'ic acid on the metal after it has performed its work on the incrustation. :I
do not pretend to set up in this specification any theoryregarding the chemical action of the eucalyptus; but I have demonstrated by long continuous and exhaustive experiments that the eucalyptus will remove scale from boilers and keep boilers free from scale with out injuring the shell of the boiler.
Having thus described my invention, whatI claim as new, and desire to secure'by Letters Patent, is-'- The improved method herein described for preventing and removing scale from steam boilers, consisting, essentially, in subjecting the interior of the boiler to the action of an infusion or decoction-ot' eucalyptus, substantiallyas described.
GEORGE DOWNIE. Witnesses:
ELLIS TOMER, A. E. LACEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US277122A true US277122A (en) | 1883-05-08 |
Family
ID=2346346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US277122D Expired - Lifetime US277122A (en) | Incrustation-preventive |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US277122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695652A (en) * | 1995-12-06 | 1997-12-09 | Betzdearborn Inc. | Methods for inhibiting the production of slime in aqueous systems |
-
0
- US US277122D patent/US277122A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695652A (en) * | 1995-12-06 | 1997-12-09 | Betzdearborn Inc. | Methods for inhibiting the production of slime in aqueous systems |
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