CS254159B1 - Water medium admixture - Google Patents
Water medium admixture Download PDFInfo
- Publication number
- CS254159B1 CS254159B1 CS855179A CS517985A CS254159B1 CS 254159 B1 CS254159 B1 CS 254159B1 CS 855179 A CS855179 A CS 855179A CS 517985 A CS517985 A CS 517985A CS 254159 B1 CS254159 B1 CS 254159B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- water
- hydroxyethylcellulose
- soluble
- friction
- weight
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 27
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 17
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 17
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 17
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000498 cooling water Substances 0.000 claims description 9
- 230000000844 anti-bacterial effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012736 aqueous medium Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 4
- 239000003899 bactericide agent Substances 0.000 abstract description 3
- 230000000855 fungicidal effect Effects 0.000 abstract description 3
- 239000000417 fungicide Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 241000605112 Scapanulus oweni Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- LZIGPWVPOQZKQY-UHFFFAOYSA-M sodium;4-(2-phenylpropan-2-yl)phenolate Chemical compound [Na+].C=1C=C([O-])C=CC=1C(C)(C)C1=CC=CC=C1 LZIGPWVPOQZKQY-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Zníženie strát tlaku třením, resp. hydraulického odporu prúdiacej vody alebo vodného roztoku sa dosiahne přidáním 1.10 ~s až 1.10_1 °/o hmot. hydroxyetylcelulózy, připadne ešte navýše vodorozpustného stabilizátora systému (vodorozpustný fungicídny a baktericídny prostriedok). Použitie přísady je vhodné hlavně na zníženie spotřeby elektrickej energie na čerpanie recirkulačných chladiacich vůd v energetike, v chemickom, v papierensko-celulozárenskom priemysle i v dalších odvetviach.Reduce pressure loss by friction, resp. hydraulic resistance of flowing water or water The solution is added by adding 1.10 ~ s to 1.10 - 1% by weight. hydroxyethylcellulose even more water-soluble stabilizer system (water soluble fungicidal and bactericidal agent). Use of additive it is especially useful for reducing consumption electricity for pumping recirculation cooling leaders in energy, chemical, in paper-making industry and other sectors.
Description
Vynález sa týká použitia definovanej přísady na zníženie hydraulického odporu, resp. strát tlaku třením prúdiacej vody alebo vodného roztoku, resp. tiež potlačenia disipácie energie v turbolentom toku vody alebo vodných roztokov, pričom přísadou je technicky poměrně 1'ahko dostupná vodorozpustná makromolekulová látka alebo zmes makromolekulových látok.The invention relates to the use of a defined additive for reducing the hydraulic resistance, respectively. pressure loss by friction of the flowing water or aqueous solution, respectively. also suppressing dissipation of energy in a turbulent flow of water or aqueous solutions, wherein the additive is a technically relatively readily available water-soluble macromolecular substance or mixture of macromolecular substances.
Známy je [Frenkiel F. N., Landhal Μ. T., Lumley J. L., Structure of Turbulence and Drag Reduction. Am. inst. of Physics, New York (1977)] vplyv niektorých rozpuštěných polymérov vo vodě za zníženie strát tlaku třením takto upravené] prúdiace] vody. Taký vplyv má polyetylénoxid, resp. polyglykol [Kutateladze S. S., Mironov Β. P.: Eksperimentafnoe issledovanie pristennych turbutentnych teori], s. 60—63. Nauka, Novosibirsk (1975); Schowalter N. R.: Mechanics of Mon — newtonian Fluids, s. 244—249. Pergamen Press, Oxford (1978); Sedov L. I., Vaseckaja N. G., Josilevič V. A.: O raščetach turbulentnych pograničnych sloev s malými dobavkami polimerov, s. 205—220. Nauka Moskva (1974)] o vysokých molových hmotnostiach, ďalej polyakrylamid [Nikitin I. K. a iní: Profil' skorostej i soprotivlenija trenia v turbulentnom tečenii, s. 93—98. Gidromechanika, Moskva (1971)] a karboxymetylcelulóza a dokonca aj hydroetylcelulóza v koncentráciach 0,1 až 0,5 % hmot. [Lodes A., Zaliberová A., Hudáčková H.: Zhorník 4. celoštátnej konferencie Reologie kapalin v průmyslové praxi, s. 117—182. Vel'ké Karlovice (1981)].Known [Frenkiel F. N., Landhal Μ. T., Lumley J. L., Structure of Turbulence and Drag Reduction. Am. inst. of Physics, New York (1977)] the effect of some dissolved polymers in water to reduce pressure losses by rubbing the treated water. This is the effect of polyethylene oxide, respectively. polyglycol [Kutateladze S. S., Mironov Β. P .: Eksperimentafnoe the Tracing of the Turnien Turbulent Theories], p. 60-63. Nauka, Novosibirsk (1975); Schowalter N. R .: Mechanics of Mon-Newtonian Fluids, p. 244-249. Parchment Press, Oxford (1978); Sedov L. I., Vaseckaya N.G., Josilevič V. A .: On the growth of turbulent pogranic slogans with small cattle polimers, p. 205-220. Nauka Moskva (1974)] on high molar masses, as well as polyacrylamide [Nikitin, I.K. et al. 93-98. Gidromechanics, Moscow (1971)] and carboxymethylcellulose and even hydroethylcellulose in concentrations of 0.1 to 0.5% by weight. [Lodes A., Zaliberová A., Hudáčková H .: Zhorník of the 4th National Conference on Rheology of Liquids in Industrial Practice, p. 117-182. Vel'ke Karlovice (1981)].
Uvedené sposoby využívajú poměrně značné množstvá polymérov a majú přitom nízku účinnosť alebo sa navýše dosahuje len nízká životnosť účinnosti.Said processes utilize relatively large amounts of polymers and have a low efficiency or, in addition, only a low efficiency life.
Avšak podstatou tohto vynálezu je použitie hydroxycelulózy v celkovom množstve sušiny 1.10“6 až 1.10_1 % hmot., připadne navýše ešte vodorozpustného stabilizátora, s výhodou vodorozpustného fungicídneho a/alebo baktericídneho prostriedku, ako přísady do vodného média, s výhodou do chladiacej vody vo výmenníkoch tepla a v cirkulačných chladiacich systémoch, na zníženie strát tlaku třením a/alebo hydraulického' odporu.However, the object of the invention is the use of hydroxycellulose in a total amount of dry substance 10.1 "6 to 1.10 _1% wt., Optionally in addition a more water-soluble stabilizer, preferably a water-soluble fungicidal and / or bactericidal composition, as additives to the aqueous medium, preferably the cooling water in heat and circulating cooling systems to reduce friction pressure losses and / or hydraulic resistance.
Výhodou použitia přísady, tzv. depresátora do vodného média na zníženie hydraulického odporu, resp. strát tlaku třením prúdiacej vody alebo vodných roztokov podfa tohto vynálezu je jeho vysoká účinnosť pri nízkých koncentráciach a vysoká stabilita systému, zabezpečujúca jeho dlhil životnosť a tým významné zvýšenie výkonu čerpadiel, chladenia a pod., bez zvýšenia spotřeby energií.The advantage of using an additive, so-called. depressant into aqueous medium to reduce hydraulic resistance, respectively. The pressure loss due to the friction of the flowing water or aqueous solutions of the present invention is its high efficiency at low concentrations and high system stability, ensuring its longevity and thus a significant increase in pump performance, cooling, etc., without increasing energy consumption.
Pri výbere hydroxyetylcelulózy je potřebné dbať o čo najvyššiu molovu hmotnost. Ako najvhodnejší sa javí rozsah mólovej hmotnosti 80 000 až 300 000 g . mól-6. Stupeň hydroxyetylácie celulózy má byť aspoň 1,5, najvhodnejší je okolo 2,5.When selecting hydroxyethylcellulose, the molar mass should be as high as possible. A molar mass range of 80,000 to 300,000 g seems to be most suitable. mol -6 . The degree of hydroxyethylation of the cellulose should be at least 1.5, most preferably about 2.5.
Navýše je vhodné, najma v prípadoch znižovania tlaku třením prúdiacich chladiacich vód přidávat aj stabilizátor systému, ktorý zabráni deštrukcii hydroxyetylcelulózy, lebo o mnoho viac než mechanická deštrukcia móže spósobiť hydrolýza hydroxyetylcelulózy, najma pri zmene pH vody a vyššej teploty a degradácia vplyvem fermentov, mikroorganizmov a pod. Preto je vhodné ako stabilizátory aplikovat přísady „pufrov“, najmá však vodorozpustných fungicídov a baktericídov. K takým patria napr. kondenzáty formaldehydú s alkanolamínmi, kvartérne bázy, alkylfenoláty sodné, najmá kumylfenolát sodný a pod.In addition, it is advisable to add a system stabilizer to prevent hydroxyethylcellulose destruction, especially in cases of reduced pressure by friction of flowing cooling water, since much more than mechanical destruction can cause hydrolysis of hydroxyethylcellulose, especially when water pH and temperature changes and degradation due to ferments, microorganisms and Come. Therefore, it is advisable to apply the additives "buffers" as stabilizers, in particular water-soluble fungicides and bactericides. These include e.g. formaldehyde condensates with alkanolamines, quaternary bases, sodium alkylphenolates, especially sodium cumylphenolate and the like.
Ako přísady hydroxyetylcelulózy, tak aj stabilizátora možno aplikovat jednorázové alebo postupné, po častiach. Ďalšie podrobnejšie informácie o účinkoch a výhodách podfa tohto vynálezu sú zřejmé z príkladov. Příklad 1Both the hydroxyethylcellulose and the stabilizer can be applied in a single or sequential manner, in portions. Further detailed information on the effects and advantages of the present invention is evident from the examples. Example 1
V recirkulačnom okruhu chladiacej vody je potrubím výměnného systému o vnútornom priemere 50 mm a dlžke 1000 m prietok vody 60 000 kg . h_1. Teplota prúdiacej vody je 20 + 1 °C. Súčinitel strát tlaku třením je 0,012, stratová výška vody je 883,8 m, potřebný výkon čerpadla na vodu je 144,790 W (J.s-1).In the cooling water recirculation circuit, the exchange system pipe with an internal diameter of 50 mm and a length of 1000 m is a water flow of 60,000 kg. h _1 . The temperature of the flowing water is 20 + 1 ° C. The coefficient of friction pressure losses is 0.012, the water loss height is 883.8 m, the required water pump capacity is 144.790 W (Js- 1 ).
Naproti tomu přidáním 5.10 “2 hmot. hydroxyetylcelulózy o priemernej mólovej hmotnosti 1,04.105 g . mól1 do reelrkulovanej vody na ten istý objemový prietok 60 000 kg. h_1 súčinitel' strát tlaku třením vody, resp. zriedeného roztoku hydroxyetylcelulózy je 0,009, stratová výška pri prúdení takto upravenej vody je 663 m a potřebný výkon čerpadla je 108 617 W (J.s-1). Tak rozdiel v potrebnom výkone čerpadla pri čerpaní prakticky čistej chladiacej vody a z chladiacej vody s přísadou 1.10-3 % hmot. hydroxyetylcelulózy je 36173 W (J. s“1). Šetří sa tak 37,85 kWh/h elektrickej energie.In contrast, by adding 5.10 < 2 > hydroxyethyl cellulose with an average molar mass of 1.04.105 g. mole 1 into re-injected water at the same volumetric flow rate of 60 000 kg. h = 1 pressure loss coefficient by friction of water or of the diluted hydroxyethylcellulose solution is 0.009, the loss in flow of the treated water is 663 m and the required pump power is 108 617 W (Js- 1 ). Thus, the difference in pump output required for pumping virtually pure cooling water and cooling water with an additive of 1.10 -3 % by weight. hydroxyethylcellulose is 36173 W (J. s. 1 ). This saves 37.85 kWh / h of electricity.
Podobný rozdiel je aj v případe vody, do ktorej sa navýše hydroxyetylcelulózy (5.10-2 °/o hmot.) přidá ešte 1.10-2 % hmot. p-kumylfenolátu sodného ako baktericídneho a fungicídneho prostriedku na zvýšenie stability hydroxyetylcelulózy.A similar difference is also found in the case of water to which, in addition to hydroxyethylcellulose (5.10 -2 % w / w), an additional 1.10 -2 % by weight is added. sodium p-cumyl phenolate as a bactericidal and fungicidal agent for enhancing the stability of hydroxyethylcellulose.
Příklad 2Example 2
V rúrkovom výmenníku tepla sa kondenzuje nasýtená vodná para ochladzovaná vodou. Počet rúrok o vnútornom priemere 25 mm vo výmenníku dížky 5 m je 86 ks. Na kondenzáciu páry s hmotnostným prletokom 4 600 kg . h_1 je spotřeba chladiacej vody 270 000 kg. h_1 pri teplote vody 19 + + 1 °C. Súčinitel strát tlaku třením vody je 0,022 a za inak podobných podmienok s vodou s přísadou 5.10_2 % hydroxyetylcelulózy o priemernej mólovej hmotnosti 94 000 g. mól-1 je 0,019. Stratová výška sa5 motnej prúdiacej vody je 60,9 m a vody s přísadou hydroxyetylcelulózy 52,5 m. Potřebné výkony čerpadiel na čerpanie chladiacich prúdov sú 44 821 W (J.s-1) v případe samotnej vody a 38 663 (J.s + v případe vody s přísadou hydroxyetylcelulózy. Tak úspora elektrickej energie pri použití chladiacej vody s přísadou hydroxyetylcelulózy je 6,2 kWh/h. Podobné rozdiely sa dosahujú navýše hydroxyetylcelulózy aj s přísadou 0,01 % hmot. kondenzačného produktu formaldehydu s monoetanolamínom ako fungicídnym a sčasti baktericídnym prostriedkom.The water-cooled saturated steam is condensed in the tubular heat exchanger. The number of tubes with an inner diameter of 25 mm in a 5 m length exchanger is 86 pieces. For steam condensation with a mass flow rate of 4 600 kg. h _1, the consumption of cooling water 270 000 kg. _1 h of water at 19 + 1 ° C. Coefficient of friction losses of pressure of water is 0.022 and the otherwise similar conditions in water with addition of 10.5% hydroxyethylcellulose of _2 average molecular weight of 94 000 g. mole -1 is 0.019. The water flow loss is 60.9 m and 52.5 m hydroxyethylcellulose water. The power requirements of the pumps for pumping cooling currents are 44,821 W (Js -1 ) for water alone and 38,663 (Js + for hydroxyethylcellulose water), thus saving 6.2 kWh / h of electric water using hydroxyethylcellulose cooling water. Similar differences are achieved in addition to hydroxyethylcellulose also with the addition of 0.01% by weight of the condensation product of formaldehyde with monoethanolamine as a fungicidal and partly bactericidal composition.
Příklad 3Example 3
Recirkulovaná chladiaca voda prúdi potrubím o vnútornom priemere 100 mm a dlžke 1 000 m v množstve 416,67 m3. h”1 pri teplote 20 + 1 °C. Na prečerpanie sa spotřebuje 207 kWh/h elektrickej energie; na prečerpanie toho istého množstva vody s přísadou 0,1 % hmot. hydroxyetylcelulózy špecifikovanej v případe 2 je potřebné 164 kWh/h a s přísadou 0,2 % hmot. 140 kWh/h elektrickej energie.The recirculated cooling water flows through a pipe with an internal diameter of 100 mm and a length of 1,000 m in a quantity of 416.67 m 3 . h -1 at 20 + 1 ° C. 207 kWh / h of electricity is consumed for pumping; to transfer the same amount of water with an addition of 0.1 wt. of hydroxyethyl cellulose specified in case 2 is needed 164 kWh / h with an addition of 0.2 wt. 140 kWh / h of electricity.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS855179A CS254159B1 (en) | 1985-07-11 | 1985-07-11 | Water medium admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS855179A CS254159B1 (en) | 1985-07-11 | 1985-07-11 | Water medium admixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS517985A1 CS517985A1 (en) | 1987-05-14 |
| CS254159B1 true CS254159B1 (en) | 1988-01-15 |
Family
ID=5396184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS855179A CS254159B1 (en) | 1985-07-11 | 1985-07-11 | Water medium admixture |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS254159B1 (en) |
-
1985
- 1985-07-11 CS CS855179A patent/CS254159B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS517985A1 (en) | 1987-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR830009348A (en) | Water Dispersible Hydrogen Enrichment Composition | |
| ATE226619T1 (en) | ANTI-FREEZE COMPOSITION AND WATER LIQUID CONTAINING THIS COMPOSITION | |
| ATE325534T1 (en) | AQUEOUS SUSPENSION OF AN AGROCHEMICAL | |
| CN109652023B (en) | Solar heat-conducting medium and preparation method thereof | |
| Timothy et al. | An appraisal of the utilization of natural gums as corrosion inhibitors: Prospects, challenges, and future perspectives | |
| CN111876784A (en) | A kind of corrosion inhibitor applied to SCAL type intercooling system and its dosing method | |
| CS254159B1 (en) | Water medium admixture | |
| CN105585142A (en) | Industrial circulating water synergist | |
| CN204756191U (en) | Compound pipe keeps warm | |
| KR20140027272A (en) | Use of composition as an antifreeze agent | |
| KR20150080590A (en) | An energy saving fluid | |
| EP1010740A1 (en) | Concentrated and diluted cooling liquid | |
| CN102418933B (en) | Corrosion-resistant chimney with cylinder wall heating device | |
| BR9705937A (en) | Heated fluid storage system | |
| CN214198622U (en) | Closed circulation device for increasing temperature of cooling water outlet of slag cooler | |
| CS254228B1 (en) | Water medium admixture | |
| CN207635916U (en) | A kind of compact efficient radiator | |
| CN2934375Y (en) | Sterilizing water tank | |
| CN110396152A (en) | Hydrophobic Modified Polyacrylamide Polymer Suitable as Supramolecular Shear Lifting Agent and Its Application in Water-based Drilling Fluid | |
| SU777338A1 (en) | Additive for reducing hydrodynamic resistance of cooling agent | |
| CN104291449A (en) | Full-bio-enzyme biological slime stripping agent for circulated cooling water | |
| CN201047732Y (en) | Water cooled heat converter | |
| KR20220077416A (en) | Heating medium including latent heat properties | |
| SU983377A1 (en) | Activated heat transfer agent | |
| CN109110932A (en) | A kind of central air conditioning antisludging agent corrosion inhibiter |