CN203224164U - Boiler with three-dimensional rib pipe as heat transferring pipe - Google Patents
Boiler with three-dimensional rib pipe as heat transferring pipe Download PDFInfo
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- CN203224164U CN203224164U CN 201320211630 CN201320211630U CN203224164U CN 203224164 U CN203224164 U CN 203224164U CN 201320211630 CN201320211630 CN 201320211630 CN 201320211630 U CN201320211630 U CN 201320211630U CN 203224164 U CN203224164 U CN 203224164U
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- dimensional ribbed
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Abstract
A boiler with a three-dimensional rib pipe as a heat transferring pipe comprises the heat transferring pipe. The heat transferring pipe comprises a second return-stroke pipe bundle and a third return-stroke pipe bundle. The second return-stroke pipe bundle or/and the third return-stroke pipe bundle is/are used as the three-dimensional rib pipe. The three-dimensional rib pipe which is the three-dimensional rib pipe with inner ribs and/or the three-dimensional rib pipe with inner ribs and outer ribs is used as a smoke gas-hot water heat transferring pipe of the boiler, the smoke-hot water heat transferring pipe of the boiler replaces existing part of the second return-stroke pipe bundle and existing part of the third return-stroke pipe bundle or all part of a common straight pipe or a threaded pipe. Under the condition that resistance of a flue is slightly increased, the forced-convection heat transferring coefficient of the smoke gas side is obviously improved and reaches 1.5-3.5 times of an optical pipe heat transferring coefficient under the same working condition, steel needed by the heat transferring pipe can be saved, manufacturing cost is lowered and the overall efficiency of the boiler is improved.
Description
Technical field
The utility model relates to the boiler technology field, relates in particular to a kind ofly to adopt three-dimensional ribbed pipe as the boiler of heat-transfer pipe.
Background technology
At present along with the adjustment of China's development of the West Regions, transfering natural gas from the west to the east national energy policy, the protection environment, prevent and remedy pollution, energy-saving and emission-reduction, improve a series of laws and regulations such as resource utilization, become the core that instructs of national energy policy.09 year statistics of tool national energy portion shows, domestic market industry at present and coal consumption of living reach 6.5 hundred million tons/year, account for 40% of the former product of coal of China, annual newly-increased 1.0-1.6MPa grade fuel oil, gas fired-boiler are the utilization of more than 9.5 ten thousand (about 180,000 steam ton) energy, the utilization rate of heat energy has fettered the performance assessment criteria that China's limited resources use, existing boiler exist service life short, the thermal efficiency is low, not environmental protection, defective that cost is high.
Along with the development of China's economic society, the energy problem that faces is more and more severeer.To adhere to carrying out the policy of " exploitation is laid equal stress on saving, and saving is put in the first place " for a long time in energy field China.And heat exchanger has very important application as the isolated plant of realizing the cold fluid and hot fluid exchange heat in fields such as the energy, chemical industry, traffic, national defence.Design and make the most important means that all kinds of high-performance heat transmission equipments are energy savings is so carry out the augmentation of heat transfer technical research and application has very important application background at heat exchanger.According to statistics, 2010 the end of the year China's heat exchanger the market demand be 50,000,000,000, will reach 1,500 hundred million yuan to the demand of the year two thousand twenty China heat exchanger market, market scale is huge.And the quality of heat exchanger heat-transfer performance has determined heat exchanger volume, weight, metal consumption, cost of investment and operating cost, thereby has also determined the heat exchanger competitiveness of product in market.Therefore, augmentation of heat transfer Study on Technology and exploitation have become a very important field of current international academic community and industrial quarters.
Adopt the boiler of fluid conduction in order to improve the heat transfer of fluid and tube wall at present, generally all comprise three fluid backhaul processes, wherein first backhaul of fluid is in corrugated internal furnace, second backhaul of fluid and the 3rd backhaul all are to carry out in common light pipe, the heat convection effect is relatively poor, people changed light pipe into the screwed pipe of same size afterwards, utilize the thread protrusion of inner tubal wall to destroy the fume side boundary layer, played the effect of certain reinforcement heat convection, but it is still very high that fume side heat exchange thermal resistance accounts for the ratio of flue gas-heat-transfer pipe-heat transfer water process entire thermal resistance, and the space still is significantly improved.
Summary of the invention
At the problems referred to above that prior art exists, the purpose that the utility model is wanted be how to provide a kind of heat exchange property good, reduce the required steel of heat-transfer pipe, reduce the boiler of manufacturing cost.
For achieving the above object, the utility model adopts following technical scheme: a kind ofly adopt three-dimensional ribbed pipe as the boiler of heat-transfer pipe, comprise heat-transfer pipe, it is characterized in that: described heat-transfer pipe comprises second backhaul tube bank and the 3rd backhaul tube bank, and described second backhaul tube bank is or/and the 3rd backhaul tube bank is three-dimensional ribbed pipe.
As optimization, described boiler is oil burning boiler or gas fired-boiler.Described boiler is hot-water boiler or steam boiler.
Further, inwall and/or the outer wall of described three-dimensional ribbed pipe have fin, and described three-dimensional ribbed pipe and fin are integrally formed;
Fin on the described inwall is inner rib plate, and described inner rib plate extends to three-dimensional ribbed pipe central shaft from the inwall of three-dimensional ribbed pipe, and the fin on the described outer wall is outer fin, and described outer fin three-dimensional ribbed pipe dorsad stretches out.
Further, the thickness of described fin is 0.1 ~ 1mm, and width is 1 ~ 7mm, highly is 2 ~ 8mm.
Described fin is a plurality of and along the many row's arrangements of three-dimensional ribbed pipe length direction one-tenth, the spacing of same row's fin is 5 ~ 15mm.
With respect to prior art, the utlity model has following advantage:
1, the three-dimensional ribbed pipe of employing comprises the three-dimensional ribbed pipe with internal-rib and/or has flue gas-hot water heat-transfer pipe that interior three-dimensional ribbed pipe tired and external fin is used as boiler, replace second backhaul and the original part or all of normal straight tube of the 3rd backhaul or screwed pipe in the boiler, have the heat exchange efficiency height, cost reduces low characteristics.Adopt three-dimensional ribbed pipe to replace former boiler interior screwed pipe or common light pipe, increase the forced-convection heat transfer coefficient that significantly improves fume side under the little situation in flue resistance, reach 1.5 ~ 3.5 times of the light pipe coefficient of heat transfer under the same operating mode, play and save the required steel of heat-transfer pipe, reduce manufacturing cost, improve the boiler whole efficiency.
Be applied to compact heat exchanger and energy-saving and emission-reduction engineering field, successfully adopt three-dimensional ribbed pipe to substitute the original light pipe of gas fired-boiler and screwed pipe, economic benefit and obvious social benefit first.
2, the three-dimensional ribbed pipe with inner rib plate is managed three-dimensional internal-rib and is compared with being welded with the three-dimensional ribbed pipe of seam, three-dimensional internal helical-rib tube, fourth born of the same parents at present, three-dimensional internal-rib pipe enhanced heat exchange performance is good, be suitable for processing tubing scope wide, to tube wall destroy little, the rib size is easy to adjust, have from outstanding advantages such as deashing, resistive connection dirt abilities; The three-dimensional internal helical-rib tube coefficient of heat transfer higher than present single-phase convection heat exchange property increases by 19%, and thermodynamic coefficient is up to 1.8, and comprehensive thermal performance is good.
3, the combination that adds twisted strip of the three-dimensional ribbed pipe with inner rib plate is strengthened convection transfer rate and is improved 6.8 times than light pipe respectively, 3～4 times of the axial internally finned tubes of existing insertion twisted strip, 3～3.5 times of inside groove deferents.The coefficient of heat transfer is respectively 5 times of light pipe, inserts 1.2 times of the low ribbed pipes of conduit in 1.5 times of the low ribbed pipes, band of wrapping wire or ring rib, has 3 times of the three-dimensional condenser pipes of convex helix, and heat transfer coefficient has improved 50～170% than smooth helix tube.
Description of drawings
Fig. 1 a and 1b are the three-dimensional ribbed pipe with inner rib plate and outer fin.
Fig. 2 a and 2b are the three-dimensional ribbed pipe with inner rib plate.
Fig. 3 is gas fired-boiler main body structure schematic diagram among the embodiment 1.
Among the figure, the 1-gas engine; 2-flue gas two, three backhaul baffling chambers; The 3-delivery port; The 4-boiler jacket; The 5-water inlet; The tube bank of the 6-second backhaul smoke pipe; The tube bank of 7-the 3rd backhaul smoke pipe; The 8-window; Flue behind the 9-; The 10-corrugated internal furnace; The 20-inner rib plate; The outer fin of 22-; 24-light pipe section; 32-does not have the fin outer wall.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Embodiment 1:A kind ofly adopt three-dimensional ribbed pipe as the boiler of heat-transfer pipe, present embodiment is that example is specifically described with the gas fired-boiler, referring to Fig. 3, the primary structure of this gas fired-boiler comprises boiler jacket 4, corrugated internal furnace 10 is set in the boiler jacket 4, flue and back flue before corrugated internal furnace 10 comprises, the diameter of back flue is greater than the diameter of preceding flue, and back flue 9 is connected the rear end of preceding flue.Between preceding flue and the boiler jacket 4 some fire tubes are set, the front end of every fire tube is fixedlyed connected with boiler jacket 4 respectively, and the rear end of every fire tube is connected with back corrugated internal furnace 10 respectively and is fixedly connected.Corrugated internal furnace 10 is flue gas first backhaul, flue gas is through finishing second backhaul and the 3rd backhaul respectively behind flue gas two, the three backhaul baffling chambers 2 in second backhaul smoke pipe tube bank the 6 and the 3rd backhaul smoke pipe tube bank 7, three-dimensional ribbed pipe is adopted in second backhaul smoke pipe tube bank the 6 and/or the 3rd backhaul smoke pipe tube bank 7, and this three-dimensional ribbed pipe can be that inwall and/or outer wall have the three-dimensional ribbed pipe of fin.During concrete the use, only the welding manner welding essence of three-dimensional ribbed pipe by original pipe or screwed pipe need be connected with boiler body, not influence structure of boiler body, flue resistance increases under the little situation, improve heat exchange efficiency greatly, reduce exhaust gas temperature and saved tubing, reduced cost.
Boiler described in the utility model is oil burning boiler or gas fired-boiler, and oil burning boiler or gas fired-boiler are the classification that the use fuel by boiler carries out; Boiler described in the utility model can also be hot-water boiler or steam boiler, and hot-water boiler or steam boiler are to classify by the purposes of boiler.
Referring to Fig. 1 a and 1b, as the optimization of technique scheme, inwall and/or the outer wall of described three-dimensional ribbed pipe have fin, and three-dimensional ribbed pipe and fin are integrally formed, and the bearing capacity of so three-dimensional ribbed pipe is strong; Fin on the inwall of three-dimensional ribbed pipe is inner rib plate 20, and this inner rib plate 20 extends to three-dimensional ribbed pipe central shaft from the inwall of three-dimensional ribbed pipe, and the fin on the outer wall of three-dimensional ribbed pipe is outer fin 22, and this outer fin 22 three-dimensional ribbed pipe dorsad stretches out.The thickness of fin is 0.1 ~ 1mm, and width is 1 ~ 7mm, highly is 2 ~ 8mm.
In order to carry the coefficient of heat transfer and the thermodynamic coefficient that further improves three-dimensional ribbed pipe, improve the comprehensive thermal performance of three-dimensional ribbed pipe, described fin is a plurality of and along the many row's arrangements of three-dimensional ribbed pipe length direction one-tenth, the spacing of same row's fin is 5 ~ 15mm.The spacing of the concrete size of fin, row's fin and the spacing of every row's fin can be selected according to actual heat exchange tube diameter and the wall thickness dimension of the boiler that uses this three-dimensional ribbed pipe.Described many row's fins are arranged parallel to each other or helical arrangement or arrange tube wall fork row on tube wall.
During concrete enforcement, three-dimensional ribbed pipe also can be according to the situation of the gas fired-boiler of concrete use, has only on the inwall of three-dimensional ribbed pipe and has inner rib plate, does not have fin on the outer wall, referring to Fig. 3 a and 3b, or fin outside the outer wall of three-dimensional ribbed pipe has only.
The three-dimensional ribbed pipe that uses in the boiler of the three-dimensional ribbed pipe of the employing that the utility model provides as heat-transfer pipe can adopt following processing method processing, adopt special-purpose cutter head and anchor clamps on special purpose machine tool to round tube inner wall implement repeatedly rotation, cut processing deeply, thereby form arrangement orderly pin rib or fish scale rib and groove at inside pipe wall, constitute the three-dimensional ribbed pipe with inner rib plate, outer fin is identical with the processing method of inner rib plate.Special-purpose cutter head herein refers to that the cutter head that is complementary with the fin size that will process, special purpose machine tool refer to the lathe that is complementary with this special use cutter head.Add and to keep 2 to 10cm light pipe sections at the two ends of pipe in order to weld by original welding manner with boiler body man-hour.This processing technology has destroys advantages such as little, machinable three-dimensional rib height height, rib arrangement mode and rib structure adjusted size be convenient to tube wall, the flexibility that has applicability widely and conduct heat and arrange.The surperficial pin rib and the groove that are processed to form cause disturbance to the near wall fluid, play and destroy fluid boundary layer or make fluid flow state enter turbulent flow by laminar flow in advance, increase heat exchange area simultaneously, strengthen heat convection, the mobile effect of also playing from deashing of the disturbance of the near wall district fluid that the three-dimensional rib plate structure causes and acceleration reduces the fouling of heat exchange surface; The surface tension effects that causes by the pin rib reduces the condensation water film thickness, strengthens film condensation heat transfer; The cavity that utilizes three-dimensional rib plate to constitute is strengthened the nucleate boiling heat exchange, thereby raising heat exchange property, the coefficient of heat transfer reaches 1～6.8 times of light pipe, reaches purposes such as energy savings, increase product yield, minimizing consumption of raw materials, the product cost that reduces, growth service life of equipment.And this kind processing technology expands Material Processing on all malleable metals such as steel, stainless steel, titanium, thereby has enlarged the scope of application of heat exchanger.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. one kind is adopted three-dimensional ribbed pipe as the boiler of heat-transfer pipe, comprises heat-transfer pipe, it is characterized in that: described heat-transfer pipe comprises second backhaul tube bank and the 3rd backhaul tube bank, and described second backhaul tube bank is or/and the 3rd backhaul tube bank is three-dimensional ribbed pipe.
2. the three-dimensional ribbed pipe of employing according to claim 1 is characterized in that as the boiler of heat-transfer pipe: described boiler is oil burning boiler or gas fired-boiler.
3. the three-dimensional ribbed pipe of employing according to claim 1 is characterized in that as the boiler of heat-transfer pipe: described boiler is hot-water boiler or steam boiler.
4. the three-dimensional ribbed pipe of employing according to claim 1 and 2 is characterized in that as the boiler of heat-transfer pipe: inwall and/or the outer wall of described three-dimensional ribbed pipe have fin, and described three-dimensional ribbed pipe and fin are integrally formed; Fin on the described inwall is inner rib plate, and described inner rib plate extends to three-dimensional ribbed pipe central shaft from the inwall of three-dimensional ribbed pipe, and the fin on the described outer wall is outer fin, and described outer fin three-dimensional ribbed pipe dorsad stretches out.
5. the three-dimensional ribbed pipe of employing according to claim 4 is characterized in that as the boiler of heat-transfer pipe: the thickness of described fin is 0.1 ~ 1mm, and width is 1 ~ 7mm, highly is 2 ~ 8mm.
6. the three-dimensional ribbed pipe of employing according to claim 4 is characterized in that as the boiler of heat-transfer pipe: described fin is a plurality of and along the many row's arrangements of three-dimensional ribbed pipe length direction one-tenth, the spacing of same row's fin is 5 ~ 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211630 CN203224164U (en) | 2013-04-24 | 2013-04-24 | Boiler with three-dimensional rib pipe as heat transferring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211630 CN203224164U (en) | 2013-04-24 | 2013-04-24 | Boiler with three-dimensional rib pipe as heat transferring pipe |
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| Publication Number | Publication Date |
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| CN203224164U true CN203224164U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320211630 Expired - Fee Related CN203224164U (en) | 2013-04-24 | 2013-04-24 | Boiler with three-dimensional rib pipe as heat transferring pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195606A (en) * | 2016-07-13 | 2016-12-07 | 重庆大学 | The adjustable three-dimensional ribbed pipe oil cooler of a kind of oil temperature |
| CN106979619A (en) * | 2017-04-25 | 2017-07-25 | 重庆大学 | A kind of three-dimensional ribbed pipe gas fired-boiler of modularized compact type and condenser |
| CN107543434A (en) * | 2017-08-16 | 2018-01-05 | 重庆大学 | Removable modularization abrasionproof ash disposal three-dimensional ribbed pipe heat exchanger |
| CN107941069A (en) * | 2017-12-26 | 2018-04-20 | 重庆市商顺换热设备有限公司 | Three-dimensional rib plate heat exchanger plates |
-
2013
- 2013-04-24 CN CN 201320211630 patent/CN203224164U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195606A (en) * | 2016-07-13 | 2016-12-07 | 重庆大学 | The adjustable three-dimensional ribbed pipe oil cooler of a kind of oil temperature |
| CN106979619A (en) * | 2017-04-25 | 2017-07-25 | 重庆大学 | A kind of three-dimensional ribbed pipe gas fired-boiler of modularized compact type and condenser |
| CN107543434A (en) * | 2017-08-16 | 2018-01-05 | 重庆大学 | Removable modularization abrasionproof ash disposal three-dimensional ribbed pipe heat exchanger |
| CN107543434B (en) * | 2017-08-16 | 2019-06-07 | 重庆大学 | Removable modularization abrasionproof ash disposal three-dimensional ribbed pipe heat exchanger |
| CN107941069A (en) * | 2017-12-26 | 2018-04-20 | 重庆市商顺换热设备有限公司 | Three-dimensional rib plate heat exchanger plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20200424 |