CN201697496U - Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat - Google Patents
Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat Download PDFInfo
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- CN201697496U CN201697496U CN2010202549256U CN201020254925U CN201697496U CN 201697496 U CN201697496 U CN 201697496U CN 2010202549256 U CN2010202549256 U CN 2010202549256U CN 201020254925 U CN201020254925 U CN 201020254925U CN 201697496 U CN201697496 U CN 201697496U
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Abstract
The utility model discloses a ribbed tubular corrosion-prevention heat exchanger having a parent tube made of cupronickel and using smoke to condense heat, belonging to the metal corrosion prevention and condensing heat-exchange equipment technical field. The ribbed tubular corrosion-prevention heat exchanger includes a cupronickel ribbed parent tube and brass or aluminum alloy ribs arranged on the cupronickel ribbed parent tube; organic coatings are respectively coated integrally on the surfaces of the ribbed parent tube and the ribs. Aiming at the characteristics that the condensing heat exchanger meets electrochemical corrosion and the ribs consume more coating material due to big area and the strategy that the important parts are protected firstly, the utility model optimizes the combinations in the structure and the surface protection of the heat exchanger and makes the heat exchanger have the advantages of simple machining, low cost, good heat conducting performance and corrosion resistance; on the premise that the heat exchanger is run safely, the production cost of the product is reduced furthest and the practicable and economic properties of the like products are further improved.
Description
Technical field
The utility model relates to the heat-exchanger rig that gas utilization equipment such as natural gas boiler and Gas Direct-fired Machine, natural gas cogeneration of heat and power are recycled flue gas to condense thermal energy, be particularly related to the finned-tube anticorrosion heat exchanger that utilizes flue gas to condense thermal energy, belong to condensing heat-exchange equipment and anti-corrosion of metal technology and field of energy-saving technology.
Background technology
Gas utilization equipment such as common natural gas boiler and direct combustion machine and natural gas cogeneration of heat and power, exhaust gas temperature is all more than 100 ℃, causes energy waste and to the pollution of environment, its thermal efficiency generally is lower than 90%.
Set up the flue gas condensing heat exchanger at gas utilization equipment afterbody, exhaust gas temperature is dropped to below the flue gas dew point temperature, not only can utilize the smoke evacuation sensible heat, a large amount of latent heat of emitting when a large amount of steam that produce in the time of also can utilizing combustion of natural gas condense, the thermal efficiency can improve 10～20%, in theory, the recycle-water steam latent heat can improve the thermal efficiency 11%, thereby energy savings, and reduce noxious gas emission, condensation water can dissolve and absorb CO in the smoke evacuation simultaneously
X, NO
X, SO
XEtc. the part pernicious gas, flue gas also had certain catharsis.Therefore, research and development flue gas to condense thermal energy recycle device, exploitation condensing gas utilization equipment or transform common gas utilization device systems as the condensing system is efficiently to utilize natural gas, reduce the effective way of environmental pollution.Therefore, research and development flue gas condensing heat exchanger or heat-exchanger rig become science of heat and energy environment engineering field hot subject.
Because water recovery liquid has dissolved part pernicious gas in the flue gas, form and contain the more highly acid corrosive liquid of having of nitrate anion, nitrite anions, chlorate anions and sulfate ion, can cause corrosion by the heat exchanging device, influence its service life.Simultaneously, the common claimed structure compactness of condensing gas utilization equipment, volume is little, in light weight, cost is low.Thereby the anticorrosion and heat and mass that improves condensing heat-exchange equipment is strengthened, is improved cycle equipment life, reduces manufacturing cost and carbon emission, becomes the key problem in technology of exploitation condensing gas utilization equipment.
At present, the condensing heat-exchange device mainly adopts as cast aluminium, aluminium alloy, nickel alloy, stainless steel and teflon materials such as (Teflon) as the heat exchange material in the world.This type of heat transmission equipment difficulty of processing is big, cost is high, the material capacity of heat transmission is poor, is unfavorable for facility compactization.The theory of constructing simultaneously is single, can not be optimized from the selection of equipment each several part to surface treatment, improve performance to greatest extent and reduce cost, make at present this type of cost of goods manufactured height, apply and be restricted.
The heat exchanger corrosion is mainly electrochemical corrosion, and heat exchanger tube is the keypoint part of corrosion protection, and it will be in case perforation will cause leakage accident.Corrosion resistance, heat conductivity, mechanical property and economy in comprehensive utilization different materials and the coated layer physical and chemical performance, be optimized combination utilization, be the renewal on this type of device design concept of research and development, will make that this series products practicality and economy are improved at all.
The utility model content
The purpose of this utility model is the different situations at heat transfer property, corrosion potential and the anticorrosion coated layer of fin parent tube and fin in the condensing heat-exchange device, fin parent tube and fin and surface protecting layer thereof are optimized combination, providing a kind of is the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy, with heat energy utilization rate, economy and the service life of further raising condensing heat-exchange device.
The technical solution of the utility model is as follows:
It is a kind of that what utilize flue gas to condense thermal energy is the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy, it is characterized in that: described finned-tube anticorrosion heat exchanger comprises copper-nickel alloy fin parent tube and the brass fin or the aluminium alloy fin that are arranged on the copper-nickel alloy fin parent tube, and integral body is coated with the last layer organic coating on described copper-nickel alloy fin parent tube and fin surface.
In the technique scheme, described organic coating adopts fluororesin, polyurethane or fluorocarbon resin coating.
The utility model is taked the measure of keypoint part key protection, fin parent tube and fin and surface protecting layer thereof are optimized combination, given full play to corrosion-resistant, the physicochemical characteristics of conducting heat and to give prominence to processing etc. of unlike material and coated layer, make that the device processing and manufacturing is simple, cost is low, good heat-transfer, corrosion-resistant, can be used for gas fired-boiler and gas utilization equipment flue gas heat energy recycle such as direct combustion machine and natural gas cogeneration of heat and power.The condensing heat exchanger that also can be used for condensing gas utilization equipment such as condensing natural gas boiler and Gas Direct-fired Machine, condensing natural gas water heater/stove.
Description of drawings
Fig. 1 for the utility model provide what utilize flue gas to condense thermal energy is the overall structure schematic diagram of the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described.
Fig. 1 for the utility model provide what utilize flue gas to condense thermal energy is the overall structure schematic diagram of the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy, this finned-tube anticorrosion heat exchanger comprises copper-nickel alloy fin parent tube 1 and the fin 2 that is arranged on this copper-nickel alloy fin parent tube, and fin adopts brass fin or aluminium alloy fin; Integral body is coated with the last layer organic coating on described copper-nickel alloy fin parent tube and fin surface, and organic coating can adopt fluororesin, polyurethane or fluorocarbon resin coating.
During processing and manufacturing, respectively processing and fabricating copper-nickel alloy fin parent tube and fin, and after its surface carried out preliminary treatment (taking out stains), make finned tube heat exchanger, last on the surface of finned tube heat exchanger integral body be coated with one deck organic coating.
The utility model is primarily aimed at that heat exchanger corrosion is mainly these characteristics of electrochemical corrosion and the fin area is big, consume the many characteristics of coating material and the measure of keypoint part key protection, carry out optimum organization from the selection and the surfacecti proteon of fin parent tube and fin, promptly be chosen in corrosion potential is high slightly in the condensate liquid copper-nickel alloy as the fin parent tube, brass that corrosion potential is lower or aluminium alloy be as fin, and then the fin parent tube is carried out different surface treatments respectively with fin; This is not only to guaranteeing the heat-exchanger rig safe operation, and to the energy consumption of simplified processing process, economical with materials and process at utmost, reduces product cost and all be of great significance.
Claims (2)
- One kind what utilize flue gas to condense thermal energy is the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy, it is characterized in that: described finned-tube anticorrosion heat exchanger comprises copper-nickel alloy fin parent tube and the brass fin or the aluminium alloy fin that are arranged on the copper-nickel alloy fin parent tube, and integral body is coated with one deck organic coating on the surface of described copper-nickel alloy fin parent tube and fin.
- 2. described what utilize flue gas to condense thermal energy is the finned-tube anticorrosion heat exchanger of parent tube with the copper-nickel alloy according to claim 1, and it is characterized in that: described organic coating adopts fluororesin, polyurethane or fluorocarbon resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202549256U CN201697496U (en) | 2010-07-01 | 2010-07-01 | Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202549256U CN201697496U (en) | 2010-07-01 | 2010-07-01 | Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697496U true CN201697496U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202549256U Expired - Fee Related CN201697496U (en) | 2010-07-01 | 2010-07-01 | Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat |
Country Status (1)
| Country | Link |
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| CN (1) | CN201697496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000236A1 (en) * | 2010-07-01 | 2012-01-05 | 北京建筑工程学院 | Combined ribbed tube anti-corrosion heat exchange device utilizing smoke to condense thermal energy |
-
2010
- 2010-07-01 CN CN2010202549256U patent/CN201697496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012000236A1 (en) * | 2010-07-01 | 2012-01-05 | 北京建筑工程学院 | Combined ribbed tube anti-corrosion heat exchange device utilizing smoke to condense thermal energy |
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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: 20110105 Termination date: 20170701 |