CN2911599Y - Copper anticorrosion condensing heat exchanger utilizing flue gas heat - Google Patents
Copper anticorrosion condensing heat exchanger utilizing flue gas heat Download PDFInfo
- Publication number
- CN2911599Y CN2911599Y CN 200620001094 CN200620001094U CN2911599Y CN 2911599 Y CN2911599 Y CN 2911599Y CN 200620001094 CN200620001094 CN 200620001094 CN 200620001094 U CN200620001094 U CN 200620001094U CN 2911599 Y CN2911599 Y CN 2911599Y
- Authority
- CN
- China
- Prior art keywords
- copper
- heat exchanger
- condensing
- heat
- flue gas
- 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 - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 31
- 239000010949 copper Substances 0.000 title claims abstract description 31
- 239000003546 flue gas Substances 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000570 Cupronickel Inorganic materials 0.000 claims abstract description 5
- 210000003141 lower extremity Anatomy 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 239000007789 gas Substances 0.000 abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 235000015393 sodium molybdate Nutrition 0.000 abstract description 4
- 239000011684 sodium molybdate Substances 0.000 abstract description 4
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000007747 plating Methods 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 229910017888 Cu—P Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- -1 nitrite anions Chemical class 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model is a copper anti-corrosive condensing heat exchanger that is based on the thermal energy of flue gas which belongs to the metallic anti-corrosion and condensing heat-exchange field. The anti-corrosive condensing heat exchanger is a finned tube heat exchanger which uses red or white copper as the backing material, wherein the surface of finned tubes and fins is coated with an amorphous Ni-Cu-P chemical compound film which uses sodium molybdate as the stabilizer; the shape of the fins allows easy condensate flow deflecting which is further enhanced by cutting out grooves on the surface; the plating-expanding-plating process technology is used for improved anti-corrosion and heat transmission for the heat exchanger. The copper anti-corrosive condensing heat exchanger not only has the advantages of excellent heat transmission which is common to copper heat exchangers, compact design, and easy producing, but also can be used as an ideal solution to anti-corrosion and heat-exchanging enhancement for such condensing natural gas-based heat exchangers as condensing gas water heaters and condensing gas boilers.
Description
Technical field
The utility model relates to the employed condensing heat exchangers of condensing gas utilization equipment such as a kind of condensed type combustion gas water heater or condensed type combustion gas heating hot water stove, be particularly related to a kind of anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy, belong to anti-corrosion of metal and condensing heat-exchange reinforcement technique field.
Background technology
Present gas heater and the gas-heating water heater gas utilization equipment such as (comprising single heating type and heating and hot water two purpose type) that uses, its basic principle is to utilize copper finned tube heat exchanger that the heat of combustion of natural gas product-flue gas is passed to water, with supply domestic hot-water and heating heat.This series products corrodes exhaust gas temperature all more than 100 ℃ for avoiding, and its heat exchanger only utilizes the sensible heat of flue gas, and vapour latent heat fails to utilize in the flue gas, with fume emission in atmosphere, so its thermal efficiency between 80～88%, and has certain pollution to environment.
For improving this series products thermal efficiency; energy savings and protection environment; over nearly 30 years, all at research condensed type combustion gas water heater and condensed type combustion gas heating hot water stove, be intended to both at home and abroad by utilizing condensing heat exchanger that exhaust gas temperature is reduced to below the flue gas dew point temperature; recycle the heat energy in the smoke evacuation to greatest extent; comprise sensible heat and the latent heat that makes water vapour condensation in the flue gas in the smoke evacuation, gross efficiency can improve 10～20%, wherein; in theory, the recycle-water steam latent heat can improve the thermal efficiency 11%.Water vapor condensate also can dissolve and absorb CO in the smoke evacuation
X, NO
X, SO
XEtc. the part pernicious gas, flue gas there is certain catharsis.
Because water recovery liquid dissolved part pernicious gas in the flue gas, form the more highly acid corrosive liquid that has that contains nitrate anion, nitrite anions, chlorate anions, sulfate ion, can cause corrosion by the heat exchanging device, influence its service life.Simultaneously, also claimed structure compactness, volume are little, in light weight for condensed type combustion gas water heater and condensed type combustion gas heating hot water stove.Thereby the key problem in technology that becomes exploitation condensed type combustion gas water heater and condensed type combustion gas heating hot water stove is strengthened in the anticorrosion and heat exchange of condensing heat exchanger.
At present, the condensing heat exchanger of developed country mainly adopts as cast aluminium, aluminium alloy, nickel alloy, stainless steel and teflon materials such as (Teflon) as the heat exchange material.This type of heat exchanger is the price height not only, processing difficulties, and equipment volume and weight are big.
Copper has good thermal conductivity and ductility, make the high fin heat exchanger of inned coefficient easily, make facility compact, in light weight, volume is little, by on-condensing gas heater and the extensive use of heating hot water stove, but because the heat exchanger of traditional on-condensing equipment, usually adopt red copper or brass, its corrosion-resistant is not suitable for directly as condensing heat exchanger.
The utility model content
The purpose of this utility model provides a kind of anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy, the latent heat that condenses and discharge with sensible heat steam in flue gas of recycling in the smoke evacuation of gas utilization equipment, enhanced heat exchange, further improve the heat energy utilization rate and the decay resistance of gas utilization equipment, reduce and pollute.
The technical solution of the utility model is as follows:
A kind of anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy, comprise copper gilled tube and be arranged on copper fin on this gilled tube, it is characterized in that: all being coated with the sodium molybdate on described gilled tube outer surface and fin surface is the amorphous ni-cu-p chemical composite plating of stabilizing agent.
The upper and lower edge of fin described in the utility model adopts circular arc or top edge to adopt trapezoidal shape polygon, lower limb to adopt the inverted triangle shape polygon to the condensation water water conservancy diversion.
Technical characterictic of the present utility model also is: for described lower limb is the circular arc fin, and its underpart is provided with condensation water water conservancy diversion conduit.
Anti-corrosion copper condensing heat exchanger provided by the utility model is to be base material with copper-nickel alloy or red copper, and its gilled tube adopts pipe, elliptical tube or sub-elliptical pipe.
The utility model compared with prior art, have the following advantages and the high-lighting effect: condensing heat exchanger 1. provided by the utility model is a base material with red copper or copper-nickel alloy, not only brought into play copper heat exchanger good heat transfer performance, compact conformation, the outstanding advantage that is easy to shape etc., and because the utility model has adopted special anti-corrosive film coating, promptly adopting with the sodium molybdate is the chemically composited plated film of amorphous ni-cu-p of stabilizing agent, be coated with one deck character on the surface of copper gilled tube and fin good, fine and close, evenly, smooth, particularly to the corrosion resistant plated film of flue gas condensing liquid (being also referred to as coating), and adopt and plate earlier the depositing process again that afterwards expands, can not only effectively improve its decay resistance, improve the service life of condensing heat exchanger, also obviously strengthened its heat transfer property simultaneously.2. the fin form that adopt to be fit to the enforcing condensation heat exchange is guaranteeing that heat-transfer surface requires, is convenient to processing and saves under the material condition, and fin is designed to be suitable for water conservancy diversion shape to condensate liquid, and it is gone up simultaneously increases the water conservancy diversion conduit with the guide functions of reinforcement to condensate liquid.3. gilled tube adopts elliptical tube or sub-elliptical pipe, has further strengthened heat convection.The heat transfer coefficient of heat exchanger can improve 20～40%.
Description of drawings
The overall structure schematic diagram of the anti-corrosion copper condensing heat exchanger that Fig. 1 provides for the utility model.
Fig. 2 a is that gilled tube is a pipe, and the upper and lower edge of fin adopts the structural representation of circular arc.
Fig. 2 b is that gilled tube is a pipe, and the upper and lower edge of fin adopts the structural representation that the water conservancy diversion conduit is arranged on circular arc and the fin.
Fig. 3 a is that gilled tube is an elliptical tube, and the upper and lower edge of fin adopts the structural representation of circular arc.
Fig. 3 a is that gilled tube is an elliptical tube, and the upper and lower edge of fin adopts the structural representation that the water conservancy diversion conduit is arranged on circular arc and the fin.
Fig. 4 a is that gilled tube is the sub-elliptical pipe, and the upper and lower edge of fin adopts the structural representation of circular arc.
Fig. 4 b is that gilled tube is the sub-elliptical pipe, and the upper and lower edge of fin adopts the structural representation that the water conservancy diversion conduit is arranged on circular arc and the fin.
Fig. 5 a is that gilled tube is a pipe, and the fin top edge is that trapezoidal shape polygon, lower limb are upside-down triangle shape polygonized structure schematic diagram.
Fig. 5 b is that gilled tube is an elliptical tube, and the fin top edge is that trapezoidal shape polygon, lower limb are upside-down triangle shape polygonized structure schematic diagram.
Fig. 6 is the sub-elliptical pipe for gilled tube, and the fin top edge is that trapezoidal shape polygon, lower limb are upside-down triangle shape polygonized structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The overall structure schematic diagram of the anti-corrosion copper condensing heat exchanger that Fig. 1 the utility model provides.This condensing heat exchanger is made up of copper gilled tube 2 and the copper fin 1 that is arranged on this gilled tube, is base material with copper-nickel alloy or red copper, and all being coated with the sodium molybdate on described gilled tube outer surface and fin surface is the amorphous ni-cu-p chemical composite plating of stabilizing agent.Gilled tube generally adopts pipe, elliptical tube or sub-elliptical pipe; It is circular arc that fin can adopt upper and lower edge, or the top edge of fin is that trapezoidal shape polygon, lower limb are the upside-down triangle shape polygon, and also can adopt top edge is that trapezoidal shape polygon, lower limb are the polygonal structure of upside-down triangle shape; For upper and lower edge is the rib structure of circular arc, and its underpart also can be provided with condensation water water conservancy diversion conduit 3.
Claims (4)
1. anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy, comprise copper gilled tube (2) and be arranged on copper fin (1) on this gilled tube, it is characterized in that: the upper and lower edge of described fin adopts circular arc or top edge to adopt trapezoidal shape polygon, lower limb to adopt the inverted triangle shape polygon to the condensation water water conservancy diversion.
2. according to the described anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy of claim 1, it is characterized in that: described lower limb adopts the bottom of circular arc fin to be provided with condensation water water conservancy diversion conduit (3).
3. according to claim 1 or the 2 described anti-corrosion copper condensing heat exchangers that utilize flue gas heat energy, it is characterized in that: described gilled tube adopts pipe, elliptical tube or sub-elliptical pipe.
4. according to the described anti-corrosion copper condensing heat exchanger that utilizes flue gas heat energy of claim 1, it is characterized in that: it is base material that described copper gilled tube and fin adopt copper-nickel alloy or red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620001094 CN2911599Y (en) | 2006-01-20 | 2006-01-20 | Copper anticorrosion condensing heat exchanger utilizing flue gas heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620001094 CN2911599Y (en) | 2006-01-20 | 2006-01-20 | Copper anticorrosion condensing heat exchanger utilizing flue gas heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911599Y true CN2911599Y (en) | 2007-06-13 |
Family
ID=38133465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620001094 Expired - Fee Related CN2911599Y (en) | 2006-01-20 | 2006-01-20 | Copper anticorrosion condensing heat exchanger utilizing flue gas heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911599Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261487A (en) * | 2010-09-17 | 2013-08-21 | 阿尔斯通技术有限公司 | Raw gas collection system |
-
2006
- 2006-01-20 CN CN 200620001094 patent/CN2911599Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261487A (en) * | 2010-09-17 | 2013-08-21 | 阿尔斯通技术有限公司 | Raw gas collection system |
| US9115437B2 (en) | 2010-09-17 | 2015-08-25 | Alstom Technology Ltd | Raw gas collection system |
| CN103261487B (en) * | 2010-09-17 | 2016-07-27 | 阿尔斯通技术有限公司 | Original gas collects system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100593682C (en) | Composite type anticorrosive heat exchanger rig | |
| CN102927843A (en) | Flue gas waste heat recovery system based on liquid metal heat transfer | |
| CN100353136C (en) | Anti-corrosion copper condensing heat exchanger utilizing smoke heat energy, and manufacturing method thereof | |
| CN201706925U (en) | Shell-and-tube heat exchanger | |
| CN202145112U (en) | Elliptical finned tube with nickel-based brazing coating | |
| CN2911599Y (en) | Copper anticorrosion condensing heat exchanger utilizing flue gas heat | |
| CN201335648Y (en) | Composite type anti-corrosion heat-exchanging device utilizing smoke gas to condense heat energy | |
| CN206670412U (en) | A kind of flue gas heat recovery device of steam generator | |
| CN202361850U (en) | Corrosion-resistant gas-liquid type gravity assisted heat pipe heat exchanger | |
| CN103175423B (en) | Heat pipe type flue gas waste heat recovery energy storage device and heat pipe type flue gas waste heat recovery energy storage method | |
| CN201016608Y (en) | Heat exchanger for condensing gas water heater | |
| CN103900406A (en) | Phase change convection heat dissipation device for heating | |
| EP2589912B1 (en) | Combined finned tube anti-corrosion heat exchange device | |
| CN203100177U (en) | Condensing heat exchanger | |
| CN208312710U (en) | A kind of heat-exchanger rig of gas heater | |
| CN201764847U (en) | Gilled tube type corrosion-resistant heat exchanger utilizing condensation heat energy of smoke and adopting brass tubes as base tubes | |
| CN201704390U (en) | Waste heat recovery system | |
| CN204042961U (en) | The condensing heat-pipe air preheater that a kind of natural gas boiler vertical well gas flue is arranged | |
| CN203550341U (en) | Sea water source intermediate heat exchanger with anti-corrosive function | |
| CN201697496U (en) | Ribbed tubular corrosion-prevention heat exchanger having parent tube made of cupronickel and using smoke to condense heat | |
| CN201764848U (en) | Finned tube type anticorrosion heat exchanger based on copper tubes and utilizing smoke condensing heat | |
| CN210486617U (en) | High heat-conducting plate heat exchanger of anticorrosive anti-dirt | |
| CN218000713U (en) | Air conditioner heat dissipation copper pipe | |
| CN216245771U (en) | Steel-based polytetrafluoroethylene heat exchange tube | |
| CN219510834U (en) | Flue gas absorption type cold water/heat pump unit of heat pipe type generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 Termination date: 20120120 |