CN102798316A - Fluid heat transfer surface automatic de-scaling device - Google Patents
Fluid heat transfer surface automatic de-scaling device Download PDFInfo
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- CN102798316A CN102798316A CN2011101671014A CN201110167101A CN102798316A CN 102798316 A CN102798316 A CN 102798316A CN 2011101671014 A CN2011101671014 A CN 2011101671014A CN 201110167101 A CN201110167101 A CN 201110167101A CN 102798316 A CN102798316 A CN 102798316A
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Abstract
The invention discloses a fluid heat transfer surface automatic de-scaling device. The fluid heat transfer surface automatic de-scaling device structurally comprises a heat transfer pipe and a pipe opening connecting cap which is arranged at the upper end of the heat transfer pipe, wherein a rotary shaft which is coaxial with the heat transfer pipe is arranged in the middle of the heat transfer pipe; the upper end of the rotary shaft is arranged in a bearing in the middle of the pipe opening connecting cap; the rotary shaft automatically rotates under the action of fluid; a bolt at the lower end of the rotary shaft is connected with a fluid power spiral twisted strip; a guide sheet is arranged on the fluid power spiral twisted strip; a spherical particle connecting shaft is connected with the outer part of the fluid power spiral twisted strip and sleeved with a plurality of spherical particle adhesion surface stirring cleaning devices; and each spherical particle adhesion surface stirring cleaning device is formed by laminating a plurality of cleaning spherical particles. The fluid heat transfer surface automatic de-scaling device is widely applicable to fully-automatic de-scaling of fluid pipeline type, falling film type, outer circulation type, central circulation type, rising film type and tubular type evaporators, condensers and coolers, and other fluid heat transfer surfaces. A fluid heat transfer surface automatic de-scaling technology has a good effect on the basis of repeated principle test.
Description
Technical field
The present invention relates to descaling equipment, specifically a kind of fluid heat transferring face automatic descaling apparatus.
Background technology
We know; A lot of equipment all can fouling; Circulating such as fluid line, falling film type, outer circulation type, central authorities, rise evaporimeters such as membrane type, shell and tube, condenser, cooler and fluid heat transferring face etc.; Now explain down that the main use field of evaporimeter is the key process equipment of industries such as sugaring, salt manufacturing, caustic soda, papermaking, pharmacy, desalinization, aluminium oxide, environmental protection, food, chemical industry through the example of takeing evaporimeter.Be example only with wherein salt, sugar, caustic soda, 5,260 ten thousand tons of the output of salt in 2009 (wherein sea salt accounts for 1/3, and well salt accounts for 2/3), the output of sugar is 1,520 ten thousand tons, the annual production of caustic soda is 1,890 ten thousand tons, and output is increasing progressively every year.
Evaporation equipment also be high energy consumption one of them.In the salt manufacturing totle drilling cost energy cost to account for its 60%, be in other industry cost energy cost to account for its 35%.Have a strong impact on two focuses of existing evaporator effectiveness and highly energy-consuming:
The one, in order to slow down fouling and to raise the efficiency; Although it is purpose to reach antiscale that existing evaporation technology adopts technical methods such as forced circulation pump, Chemical cleaning, Electromagnetic Treatment, ultrasonic Treatment, water treatment agent, prevent that dirt from remaining a worldwide problem that is at all solved as yet in calorifics and the power-saving technology.
For example, the 3rd chemical plant, saltern, Hangu, Tianjin in China famous salt place of production, the heat transfer coefficient that adopts forced circulation pump 1st effective evaporator in 7 days is by 2432W/m
2.K drop to 1628W/m
2.K, promptly reduced by 33%.
For example, Jiangxi agate moral fine chemistry Industrial Co., Ltd ammonium sulfate continuous evaporative crystallization device, evaporation capacity: 20t/h adopts 2 forced circulation pump FJX450, FJX500 type, general power 120Kw, annual more than 90 ten thousand yuan of the power consumption expenses that need.
For example, glauber salt (anhydrous sodium sulfate) production export base Yuncheng Salt Chemistry Bureau, Shanxi Prov. that China is maximum produces 500000 tons per year, and annual value of production is 3,000,000,000 yuan, and evaporimeter stops because of salt scale coagulation per tour and cleans twice.In order to prolong the cycle that evaporimeter stop to clean, chased after and adopt investment forced circulation pump huge, that power consumption is high to accelerate material flow to delay the heating surface fouling.
For example, the ACP11-900 type circulating pump of PLA's 9510 factory's salt making evaporators, power 180Kw, annual more than 120 ten thousand yuan of the power consumption expenses that need.
For example, the cost of salt mine salt manufacturing 60% is to expend.The three-effect counter flow bittern evaporation device that Hunan, Hunan weighing apparatus salt mine 2 covers are 100,000 tons adopts 6 forced circulation pumps, power 110kw/ platform, and the electricity charge of pump are annual just up to more than 470 ten thousand yuan.But still need per tour to clean with cold water.
For example, nuclear parent company 711 ore deposit electrochemical factories produce 20000 tons evaporating caustic soda device per year, and the type circulating pump 80Kw of employing still washed (each class) in 3 hours for a short time, wash greatly in 7 hours (each class).Therefore, the focus of benefit is that cyclic stop is cleaned and forced circulation pump highly energy-consuming such two big basic problems.
The 2nd, the dirt in the heating tube makes heat transfer coefficient descend 30% when serious (all heating tubes all blocked by salt crust), needs frequent cyclic stop to clean, and production capacity has been reduced more than 30%, and increased the steam consumption cost again and cleaned cost.Therefore, two of focus is exactly the advanced technology that the on-line Full cleaning and descaling of emphasis research and development fluid heat transferring face is kept a public place clean.
Point out in first Medium-and Long-Term Plan for Conserving Energy Resources of China of National Development and Reform Commission's issue in by the end of December, 2004; Per 1,000,000 dollars GDP energy consumption; Higher 2.4 times than world average level, higher 2.5,4.9,8.7,0.43 times respectively than the U.S., European Union, Japan, India, six of ten big safeguards of proposition are " accelerating power-saving technology exploitation, demonstration, popularization "; " advanced technology that on-line Full cleaning and descaling is kept a public place clean "; Classified as 95 key popularization plan projects by State Scientific and Technological Commission, it is remarkable not only to clean heat-transfer area descaling and antiscaling, energy-conservation, water saving, economize on electricity, joint vapour effect automatically, and simple in structure; Easy to maintenance, can hold continuous operation etc.
To quick long dirty cooler, crystallizer, concentration evaporator, crystallizing evaporator, destilling tower (rectifying column) tower bottom reboiler, condenser or the like fluid heat transferring equipment.So must design a kind of device of automatic cleaning and descaling.
Certainly; The device of the automatic cleaning and descaling of being invented also not merely can only be applied in the middle of the evaporimeter; But in the equipment of all similar evaporimeters, such as being used for the full-automatic scale removal that fluid line, falling film type, outer circulation type, central authorities are circulating, rise evaporimeter, condenser, cooler and other fluid heat transferring faces such as membrane type, shell and tube.
Summary of the invention
The objective of the invention is defective, fluid heat transferring face automatic descaling apparatus is provided, need not increase any driving power and operating cost in the on-line Full scale removal process, be domestic and international initiative to the prior art existence.
The technical solution adopted for the present invention to solve the technical problems is: fluid heat transferring face automatic descaling apparatus; Its structure comprises heat-transfer pipe and is installed in the mouth of pipe attachment cap of heat-transfer pipe upper end; Be provided with the rotating shaft with the same axis of heat-transfer pipe in the middle of the heat-transfer pipe, the upper end of this rotating shaft places the bearing in the middle of the mouth of pipe attachment cap and rotates thereupon; Said rotating shaft lower end bolt also is connected with the fluid dynamic twisted strip.
The said fluid dynamic twisted strip outside is connected with the spherolite connecting axle, is with many groups on the said spherolite connecting axle and mixes cleaning device by the spherolite veneer that a plurality of cleaning spherolite mutual superposition are constituted.
Said cleaning spherolite is the middle cylindrical structural that has through hole.
Said spherolite connecting axle is three, wherein the upper end with directly over the central rotating shaft bolt connect, whole then all angles extend to the fluid dynamic twisted strip outside.
Said mouth of pipe attachment cap is provided with fluid inlet and connects with the heat-transfer pipe inner chamber, and said heat-transfer pipe end in addition is fluid issuing.
On the said fluid dynamic twisted strip prerotation vane is set also.
Fluid heat transferring face automatic descaling apparatus of the present invention is compared with prior art, has following beneficial effect:
Fluid heat transferring face automatic descaling apparatus of the present invention is widely used in the full-automatic scale removal that fluid line, falling film type, outer circulation type, central authorities are circulating, rise evaporimeter, condenser, cooler and fluid heat transferring faces such as membrane type, shell and tube.When being applied in the evaporimeter; Under heat transfer enhancement; Liquid makes automatic descaling apparatus produce rotation through fluid dynamic twisted strip and prerotation vane, drives the spherolite veneer and moves to the heating tube inwall; Not only can save the forced circulation pump of high energy consumption, and can enough motive forces be provided for on-line Full cleaning.Heating clamber adds to be installed spherolite veneer motion efficiently and mixes transmission system in the pipe pipe, the automatic desludging of dirt in can under the drive of heat transfer enhancement, realizing reliably managing, and make and manage interior convection heat transfer' heat-transfer by convection process and be able to efficient reinforcement.
Fluid heat transferring face automatic desludging technology has been carried out repeatedly principle tests, has obtained the good effect of great property, is used widely in evaporation technology simultaneously.
Heat-transfer area salt crust thickness after one hour at natural-circulation evaporator reaches 5.2mm.
Under the same evaporation technology condition, the heat transfer coefficient of this new and high technology is steady and continuous work for a long time, and also high 15% efficient of heat-transfer area when not having dirt than the cleaning under the forced circulation operation is moved after two hours 6 times more than of heat-transfer area raisings.
This technology is compared the heat transfer coefficient curve data of aluminium company in China (in the November, 1908) with the No.1 alumina evaporation device preventing fouling u s company in the world, my company adopts the boundary layer of spherolite veneer motion to mix and transmits to strengthen and exceeds 3.5 times with the scale removal cleaning technique than U.S. efficient! Be 4.2 times of glueballs on-line cleaning technology of German TAPROGGELREINIGUN company invention.
Description of drawings
Fig. 1 is the structural representation of fluid heat transferring face automatic descaling apparatus of the present invention;
Fig. 2 is the structure vertical view of mouth of pipe attachment cap;
Fig. 3 is the A-A profile of Fig. 1;
Fig. 4, Fig. 5 are respectively structural front view and the vertical view that the spherolite veneer is mixed one of them spherolite of cleaning device;
Fig. 6 strengthens the model sketch map for the present invention mixes to transmit in the boundary layer of centrifugal force field fluidization spherolite veneer motion;
Fig. 7 is the mechanical model sketch map of the present invention in the motion of centrifugal force field fluidization spherolite veneer;
Fig. 8 is the structural representation of another embodiment of fluid heat transferring face automatic descaling apparatus of the present invention.
Among the figure: 1, bearing; 2, mouth of pipe attachment cap; 3, rotating shaft; 4, the spherolite veneer is mixed cleaning device; 5, fluid dynamic twisted strip; 6, heat-transfer pipe; 7, prerotation vane; 8, spherolite connecting axle.
The specific embodiment
Next explanation at length below with reference to Figure of description fluid heat transferring face automatic descaling apparatus of the present invention being done.
Embodiment 1:
Fluid heat transferring face automatic descaling apparatus; Its structure comprises heat-transfer pipe 6 and is installed in the mouth of pipe attachment cap 2 of heat-transfer pipe upper end; Be provided with the rotating shaft 3 with the same axis of heat-transfer pipe in the middle of the heat-transfer pipe, the upper end of this rotating shaft places the bearing 1 in the middle of the mouth of pipe attachment cap and rotates thereupon; Said rotating shaft lower end bolt also is connected with fluid dynamic twisted strip 5.Be with many groups on the said spherolite connecting axle and mix cleaning device 4 by the spherolite veneer that a plurality of cleaning spherolite mutual superposition are constituted.Said cleaning spherolite is the middle cylindrical structural that has through hole.Said mouth of pipe attachment cap is provided with import and connects with the heat-transfer pipe inner chamber, and said heat-transfer pipe bottom is outlet.Arrive shown in Figure 5 like Fig. 1.Under the same evaporation technology condition, the heat transfer coefficient of this new and high technology is steady and continuous work for a long time, and also high 15% efficient of heat-transfer area when not having dirt than the cleaning under the forced circulation operation is moved after two hours 6 times more than of heat-transfer area raisings.This technology is compared the heat transfer coefficient curve data of aluminium company in China (in the November, 1908) with the No.1 alumina evaporation device preventing fouling u s company in the world, the present invention adopts the boundary layer of spherolite veneer motion to mix and transmits to strengthen and exceeds 3.5 times with the scale removal cleaning technique than U.S. efficient! Be 4.2 times of glueballs on-line cleaning technology of German TAPROGGEL REINIGUN company invention.
Fluid heat transferring face automatic desludging is mixed and is transmitted strengthening process mechanism:
The spiral flow centrifugal force field makes the enrichment of liquid stateization spherolite to heat-transfer area, and the basic mechanical model that produces the veneer motion of the double slippage of rolling is seen shown in Figure 7.Viscous friction between adherent rolling pellet surface and the liquid drives, benefits again the dynamic pressure liquid film that the convergence gap between slip spherolite and the wall forms; Formed the eddy current of mixing of sealing, and induced the two secondary eddy current mixed between the eddy current and see shown in Figure 6.
Mix vortex disturbance inside pipe wall medium, the attenuate boundary layer can reach the heat conduction reinforced double effects that cleans with automatic on-line.Fluid cleans the use of dynamical element automatically, makes tube fluid become big with respect to the movement velocity of heat-transfer area, and also strain is big mutually with turbulent flow for Reynolds number, thereby makes inside pipe wall convection cell heat transfer resistance R
1Reduce, and its online scale removal effect makes inside pipe wall dirtiness resistance R
2Almost nil.In view of the above, the entire thermal resistance R of diabatic process significantly reduces, and the evaporation heat transfer values of factor K greatly improves 170%, and steam consumption quantity also obviously reduces by 15%, and power consumption reduces by 90%, and the evaporation crystallization equipment investment reduces 8～15%.
The automatic antiscale process mechanism of fluid heat transferring face:
Because mixing to transmit, spherolite veneer motion efficiently strengthens; Both stoped effectively that the suspension crystallite deposits to the probability that heat-transfer area becomes nucleus in the supersaturated solution; Make the thermograde of heat-transfer area detention layer obviously descend again; Degree of supersaturation significantly descends, and adds the slippage disturbance of spherolite, and the growth course that suppresses crystallization effectively realizes antiscale.Therefore, antiscale mechanism is to transmit the inevitable outcome of strengthening process in essence.
Fluid heat transferring face automatic desludging process mechanism:
Because after spherolite veneer motion is efficiently mixed and is transmitted the reinforcement antiscale; The hard crystallization dirt of the thick iciness of millimeter level can not appear; But independent separately, be not to connect crystallization salt crust in blocks-such tender dirt of similar thin frost, to attach intensity lower with heat-transfer area, is prone to be spherolite slippage scouring.Its process essence belongs to just dirty (or tender dirt) and is removed by the continuous scouring of veneer slippage fluidization spherolite.Thereby realized continuous evaporation, continuous crystallisation, eliminated the dirtiness resistance in the pipe automatically continuously, greatly improved the operational efficiency of fluid heat transferring face.
Through us national market is investigated; At present, industries such as domestic chemical industry, salt manufacturing, aluminium oxide, iron and steel, sugaring, food, wastewater treatment are about the forced circling evaporator that is using overlaps up to 1,000,000; Average every cover power consumption was pressed 50kw/ hour, and the electricity charge are by 0.55 yuan/kw.
1,000,000 cover * 50kw * 24 hour * more than=190 hundred million yuan (annual consumes energy) of 0.55 yuan/degree of 300 days/year * electricity charge of operation.
If adopt online automatic descaling apparatus technology, just well imagined for national energy savings every year.The important breakthrough of this top scientific achievement, will reach hundred million yuans of hundreds ofs every year for national energy savings, make remarkable contribution for China, meet to implement " economizing energy law " on April 1st, 2008.
Embodiment 2:
Fluid heat transferring face automatic descaling apparatus; Its structure comprises heat-transfer pipe 6 and is installed in the mouth of pipe attachment cap 2 of heat-transfer pipe upper end; Be provided with the rotating shaft 3 with the same axis of heat-transfer pipe in the middle of the heat-transfer pipe, the upper end of this rotating shaft places the bearing 1 in the middle of the mouth of pipe attachment cap and rotates thereupon; Said rotating shaft lower end bolt also is connected with fluid dynamic twisted strip 5.The said fluid dynamic twisted strip outside is connected with spherolite connecting axle 8, is with many groups on the said spherolite connecting axle and mixes cleaning device 4 by the spherolite veneer that a plurality of cleaning spherolite mutual superposition are constituted.Said cleaning spherolite is the middle cylindrical structural that has through hole.Said spherolite connecting axle is three, wherein the upper end with directly over the central rotating shaft bolt connect, whole then all angles extend to the fluid dynamic twisted strip outside.Said mouth of pipe attachment cap is provided with import and connects with the heat-transfer pipe inner chamber, and said heat-transfer pipe end in addition is outlet.On the said fluid dynamic twisted strip prerotation vane 7 is set also.As shown in Figure 8.That is to say, after fluid gets into heating tube, under the thermal source effect externally; Make fluid produce at heating tube that heat rises, heat power, accelerate flow rate of fluid, under the effect of flow velocity; Fluid flows through under the inducing action of twisted strip and prerotation vane, makes fluid in pipe, produce spiral flow, and spiral flow makes the apparatus for eliminating sludge rotation; Rotation produces centrifugal force, and the spiral flow centrifugal force field makes the enrichment of liquid stateization spherolite to heat-transfer area, realizes cleaning automatically principle.
Other repeat no more with embodiment 1.
The above embodiment is a kind of of the more preferably concrete embodiment of the present invention, and common variation that those skilled in the art carries out in technical scheme scope of the present invention and replacement all should be included in protection scope of the present invention.
Claims (6)
1. fluid heat transferring face automatic descaling apparatus; It is characterized in that: its structure comprises heat-transfer pipe and is installed in the mouth of pipe attachment cap of heat-transfer pipe upper end; Be provided with the rotating shaft with the same axis of heat-transfer pipe in the middle of the heat-transfer pipe, the upper end of this rotating shaft places the bearing in the middle of the mouth of pipe attachment cap and rotates thereupon; Said rotating shaft lower end bolt also is connected with the fluid dynamic twisted strip.
2. fluid heat transferring face automatic descaling apparatus according to claim 1; It is characterized in that: the said fluid dynamic twisted strip outside is connected with the spherolite connecting axle, is with many groups on the said spherolite connecting axle and mixes cleaning device by the spherolite veneer that a plurality of cleaning spherolite mutual superposition are constituted.
3. fluid heat transferring face automatic descaling apparatus according to claim 2 is characterized in that: said cleaning spherolite is the middle cylindrical structural that has through hole.
4. fluid heat transferring face automatic descaling apparatus according to claim 2 is characterized in that: said spherolite connecting axle is three, wherein the upper end with directly over the central rotating shaft lower end snail tie and connect, whole then all angles extend to the fluid dynamic twisted strip outside.
5. fluid heat transferring face automatic descaling apparatus according to claim 1 is characterized in that: said mouth of pipe attachment cap is provided with fluid inlet and connects with the heat-transfer pipe inner chamber, and said heat-transfer pipe end in addition is fluid issuing.
6. fluid heat transferring face automatic descaling apparatus according to claim 1 is characterized in that: on the said fluid dynamic twisted strip prerotation vane is set also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101671014A CN102798316A (en) | 2011-05-23 | 2011-06-21 | Fluid heat transfer surface automatic de-scaling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120165562 | 2011-05-23 | ||
| CN201120165562.3 | 2011-05-23 | ||
| CN2011101671014A CN102798316A (en) | 2011-05-23 | 2011-06-21 | Fluid heat transfer surface automatic de-scaling device |
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| CN102798316A true CN102798316A (en) | 2012-11-28 |
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| CN2011202100985U Expired - Fee Related CN202209905U (en) | 2011-05-23 | 2011-06-21 | Fluid heat transfer surface automatic descaling device |
| CN2011101671014A Pending CN102798316A (en) | 2011-05-23 | 2011-06-21 | Fluid heat transfer surface automatic de-scaling device |
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| CN2011202100985U Expired - Fee Related CN202209905U (en) | 2011-05-23 | 2011-06-21 | Fluid heat transfer surface automatic descaling device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325697A (en) * | 2020-11-05 | 2021-02-05 | 上海海事大学 | Automatic descaling device of marine vacuum flash evaporation type seawater desalination equipment |
| CN112985161A (en) * | 2021-03-09 | 2021-06-18 | 重庆中创鼎新智能化节能技术有限公司 | Open type enhanced heat exchange and online cleaning device |
| CN114344935A (en) * | 2022-01-12 | 2022-04-15 | 湖南工业大学 | Automatic spiral cleaning evaporation crystallizer with partitioned natural circulation pipes |
| CN116271903A (en) * | 2023-05-23 | 2023-06-23 | 东营市赫邦化工有限公司 | Evaporation apparatus for caustic soda |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202209905U (en) * | 2011-05-23 | 2012-05-02 | 项文远 | Fluid heat transfer surface automatic descaling device |
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| US3631555A (en) * | 1970-03-09 | 1972-01-04 | Combustion Eng | Tube-cleaning pellet gun |
| CN2443319Y (en) * | 2000-09-04 | 2001-08-15 | 建德市蓝宇清洗有限公司 | Heat transfer tube with scale removing and preventing device |
| CN2465140Y (en) * | 2001-02-19 | 2001-12-12 | 沈激明 | Automatic descaling device for heat conductive pipe |
| CN201837283U (en) * | 2010-04-23 | 2011-05-18 | 张天平 | Scraping plate type heat exchanger |
| CN202209905U (en) * | 2011-05-23 | 2012-05-02 | 项文远 | Fluid heat transfer surface automatic descaling device |
-
2011
- 2011-06-21 CN CN2011202100985U patent/CN202209905U/en not_active Expired - Fee Related
- 2011-06-21 CN CN2011101671014A patent/CN102798316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3631555A (en) * | 1970-03-09 | 1972-01-04 | Combustion Eng | Tube-cleaning pellet gun |
| CN2443319Y (en) * | 2000-09-04 | 2001-08-15 | 建德市蓝宇清洗有限公司 | Heat transfer tube with scale removing and preventing device |
| CN2465140Y (en) * | 2001-02-19 | 2001-12-12 | 沈激明 | Automatic descaling device for heat conductive pipe |
| CN201837283U (en) * | 2010-04-23 | 2011-05-18 | 张天平 | Scraping plate type heat exchanger |
| CN202209905U (en) * | 2011-05-23 | 2012-05-02 | 项文远 | Fluid heat transfer surface automatic descaling device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325697A (en) * | 2020-11-05 | 2021-02-05 | 上海海事大学 | Automatic descaling device of marine vacuum flash evaporation type seawater desalination equipment |
| CN112985161A (en) * | 2021-03-09 | 2021-06-18 | 重庆中创鼎新智能化节能技术有限公司 | Open type enhanced heat exchange and online cleaning device |
| CN114344935A (en) * | 2022-01-12 | 2022-04-15 | 湖南工业大学 | Automatic spiral cleaning evaporation crystallizer with partitioned natural circulation pipes |
| CN116271903A (en) * | 2023-05-23 | 2023-06-23 | 东营市赫邦化工有限公司 | Evaporation apparatus for caustic soda |
| CN116271903B (en) * | 2023-05-23 | 2023-07-25 | 东营市赫邦化工有限公司 | Evaporation apparatus for caustic soda |
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| CN202209905U (en) | 2012-05-02 |
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Application publication date: 20121128 |