CN101839591A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN101839591A CN101839591A CN201010132263A CN201010132263A CN101839591A CN 101839591 A CN101839591 A CN 101839591A CN 201010132263 A CN201010132263 A CN 201010132263A CN 201010132263 A CN201010132263 A CN 201010132263A CN 101839591 A CN101839591 A CN 101839591A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- coating
- aforementioned
- exchange piping
- barrier layer
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/02—Coatings; Surface treatments hydrophilic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/20—Safety or protection arrangements; Arrangements for preventing malfunction for preventing development of microorganisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paints Or Removers (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of heat exchanger,, comprise that one can be by the exchange piping (2 of air circulation in particular for the evaporimeter of cooling circuit, 3), wherein, described exchange piping (2,3) to small part portion section has by having and imbeds the coating (6) that polymer wherein, the nanometer-level silver particle forms.
Description
Technical field
The present invention relates to a kind of heat exchanger as described in the preamble according to claim 1, in particular for the evaporimeter (vapo riser) of cooling circuit, and a kind of method that is used to make this heat exchanger.
Background technology
Heat exchanger has big surface usually, can deposit the microorganism of respective amount on this surface.This is particularly useful for the evaporimeter of air-conditioning equipment, and this air-conditioning equipment is flow through by air to be cooled, and wherein atmospheric moisture condenses on the described surface and promotes organic growth.
DE10 2,008 004 186A1 have put down in writing a kind of evaporimeter of air-conditioning equipment, and it has anti-biotic material at flat tube or corrugated fin (fin) outside, and this material also comprises nano level silver-colored particle.When operation, described anti-biotic material especially is transported to flat tube and corrugated fin by the gravity effect by means of condensed water.
Summary of the invention
The problem to be solved in the present invention provides a kind of heat exchanger, wherein has the long acting antibiotic effect of restraining various microorganisms.
This problem by a kind of have the described feature of claim 1, the beginning described heat exchanger solved.Direct coating by the interchanger piping evenly and with the nanometer-level silver particle of the dosage of regulation realizes antibacterial action widely on the face that heat exchange is worked.In addition, because silver exists with the form of element, thereby will realize very slowly and lasting release silver particles.In addition, by the nanometer assurance of silver-colored particle enough surface area and particle enough movements are arranged in the polymer of imbedding.In the present invention, nanoscale is interpreted as being not more than the average grain diameter of 100nm.At this, do not get rid of and exist to the bigger silver-colored particle of small part.
The concrete structure that exchanges piping and heat exchanger in the present invention is irrelevant, and it mainly is interpreted as the face that heat exchange is worked.Air-conditioning equipment-evaporimeter with pipe-fin-frame mode is an example, and the exchange piping is made of flat tube and the fin that is arranged between the flat tube usually.
In a kind of preferred expansion design of the present invention, coating has the additive (augmentation) that is used to produce water-wetted surface.At this, in preferred detailed construction, described additive comprises granular, especially the salt of nano-scale particle shape, especially barium sulfate.Therefore guaranteed even and wetting from the teeth outwards the condensing of air of condensation in simple mode.Especially therefore avoid forming drop and/or such as fin net (Rippenkiemen) like this because the minor structure that condensed water increases, and optimize the release of silver ion.Especially the salt of indissoluble, for example barium sulfate helps and is suitable for producing the appropriate hydrophily of polymer surfaces well.
In a kind of preferred form of implementation, polymer is a polyurethane, has obtained good adsorption and weatherability thus.
In addition, coating is preferably designed for dry lacquer (dried varnish), especially is designed to dry water paint.This has realized coating simple also coating of environmental compatible on the exchange piping, for example by dipping bath-japanning.
In a kind of especially preferred and favourable form of implementation, coating has following composition (by weight):
-10%-25%, polymer-binder, the especially polyurethane of especially preferred 16%-19%;
-50%-90%, hydrophilic filler, the especially barium sulfate of especially preferred 77%-82%;
-0.05%-2%, the nano level silver-colored particle of especially preferred 0.1%-0.3%;
-0%-10%, one or more in additive, especially lytic agent, wetting agent, solubilizer, dispersant and the levelling agent group of especially preferred 0%-6%.
Coating advantageously has the thickness at least about 0.1 μ m usually, especially at least about the thickness of 0.5 μ m.Therefore the silver that guarantees q.s is used for producing antibacterial action in long-time.
In addition, coating advantageously has and is not more than about 5 μ m, especially is not more than the thickness of about 2 μ m, makes heat exchanger can not produce tangible thermal insulation by polymer, and keeps the coating amount less and cheap.
In the common preferred design of the present invention, the exchange piping is made of metal, and especially aluminium alloy wherein, in preferred detailed design, designs a barrier layer (inversion layer) between coating and metal.This barrier layer especially is preferably designed for conversion coating (conversion coating), especially has hydrophilic surface.This conversion coating for example can be the chromic acid passivation layer, especially green chromic acid passivation layer (greenchromating).Scheme also can be the conversion coating that produces according to patent documentation DE10314700A1 as an alternative.Conversion coating is generally understood as in basic unit, and for example aluminium participates in the layer of generation down.As an alternative or supplement, barrier layer also can be the coating that applies fully, for example polymer.Barrier layer preferably has such effect in the present invention, makes silver-colored particle also therefore can not form the local element that promotes corrosion with Metal Contact.Especially, but not necessarily, the present invention relates to the heat exchanger of making by aluminum or aluminum alloy.
In a kind of particularly preferred version, the exchange piping comprises flat tube and fin, and wherein, whole exchange piping is covered by coating.For example for economical with materials, can consider that also only partly exchanging piping has coating in principle.
For manufacture method, technical problem to be solved by this invention solves by the feature of claim 12 according to the present invention.Wherein preferred liquid mixture for example is an aqueous dispersion, but not necessarily.Also can consider the coating of non-liquid phase, but for example apply by the mode of powder coating.
In preferred detailed design, described method is exchanging the step that the barrier layer that especially is configured to conversion coating is set on the piping before being included in execution in step b.
In addition, this method advantageously comprises the dry step that applies coating in step b usually.
The present invention other advantage and feature by the form of implementation of following explanation and from dependent claims, draw.
Description of drawings
Below describe the preferred embodiments of the present invention with reference to the accompanying drawings in detail.
Fig. 1 shows the schematic diagram by heat exchanger of the present invention,
Fig. 2 shows the schematic sectional view on the surface of heat exchanger shown in Figure 1.
The specific embodiment
Shown in Fig. 1, be the evaporimeter of the air-conditioning equipment (cooling circuit) of automobile by heat exchanger of the present invention.Evaporimeter comprises two manifolds 1 opposite one another, and it interconnects by the flat tube bundle.In addition, between flat tube 2, be provided with the fin 3 that is used to increase the surface.Flat tube or exchange pipe 2 are with the fin 3 common zones by air circulation that form exchange piping and/or evaporimeter.
Under current situation, manifold 1 and exchange piping 2,3 are made by aluminum or aluminum alloy, and are welded to each other in brazier in manufacture process.Afterwards, the metal surface 4 of evaporimeter at first sets conversion coating 5, sets antibiotic coating 6 (see figure 2)s then.
After welding, whole surperficial 4 of evaporimeter sets conversion coating in chemistry and/or physical method, and for example according to chromic acid passivation, especially green chromic acid passivation method is perhaps according to the method for being put down in writing among the patent documentation DE10314700A1.At this, the surface hydrophilic ground of conversion coating is set.
Be the antimicrobial coating 6 that water-based polyurethane disperses lacquer then as the form of laying on the conversion coating of barrier layer.Hydrophilic design by the surface guarantees by complete and good wetting of water-based paints.
In addition, aqueous polyurethane-dispersant comprises nano level silver-colored particle and nano level salt particle, and current is barium sulfate.At this, antibacterial action mainly produces by silver-colored particle, wherein, and the hydrophily on the surface of the condensed water assurance coating 6 that barium sulfate particle produces by being in operation or good wettability.
Current dispersion lacquer is applied by bathing pool.After applying, coating is being dried under 150 ℃ temperature in drying steps.
Coating 6 has following composition (percentage by weight) after dry:
-polyurethane: 16.2%-18.4%
-barium sulfate: 77.6%-82%
-Yin: 0.1%-0.3%
-additive: 0%-6%
Additive is for disperseing the common additive of lacquer, as solubilizer, and dispersant or levelling agent.According to design, drier can be fled from the dry run of lacquer.
In current embodiment, the coating 6 that is produced has the thickness in 0.5 μ m to 2 mu m range.
In service at evaporimeter, come the condensed water of self cooled air to be deposited on continuously on the hydrophilic coating 6.At this, the nano particle of elemental silver has a large amount of silver ions that enough big surface discharges extensive antibacterial action.Therefore, in the zone of exchange piping 2,3, directly prevent stop and the breeding of microorganism by its antibiotic surface.Simultaneously, the hydrophilic additive by barium sulfate guarantees by condensed water good and wetting uniformly.
Barrier layer 5 prevents that silver-colored particle from contacting with the aluminium 4 of evaporimeter.This prevents because the corrosion that local element causes.
By using elemental silver to realize the release of anti-biotic material very slowly, thereby and guaranteed the long life-span of antimicrobial coating.Coating 6 especially can provide its antibacterial action in the whole life-span of automobile.
Claims (14)
1. heat exchanger, the evaporimeter in particular for cooling circuit comprises:
Can be by the exchange piping (2,3) of air circulation,
It is characterized in that, described heat exchanger, especially described exchange piping (2,3) segment section at least have by having and imbed the coating (6) that polymer wherein, the nanometer-level silver particle forms, wherein, between described coating (6) and metal (4), be configured with barrier layer (5).
2. heat exchanger according to claim 1 is characterized in that, described coating (6) has the additive that is used to produce water-wetted surface.
3. heat exchanger according to claim 2 is characterized in that, that described additive comprises is granular, the especially salt of nano-scale particle shape, especially barium sulfate.
4. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described polymer is a polyurethane.
5. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described coating (6) is designed to dry lacquer, especially be designed to dry water paint.
6. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described coating (6) has following composition by weight percentage:
Polymer-binder, the especially polyurethane of-10%-25%, especially preferred 16%-19%;
Hydrophilic filler, the especially barium sulfate of-50%-90%, especially preferred 77%-82%;
The nano level silver-colored particle of-0.05%-2%, especially preferred 0.1%-0.3%;
The additive of-0%-10%, especially preferred 0%-6% is especially from the group of lytic agent, wetting agent, solubilizer, dispersant and levelling agent one or more.
7. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described coating (6) has the thickness at least about 0.1 μ m, especially at least about the thickness of 0.5 μ m.
8. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described coating (6) has and is not more than about 5 μ m, especially is not more than the thickness of about 2 μ m.
9. according to each the described heat exchanger in the aforementioned claim, it is characterized in that described exchange piping (2,3) is by metal (4), especially aluminium alloy is made.
10. heat exchanger according to claim 9 is characterized in that, described barrier layer (5) is designed to conversion coating, especially has the conversion coating of water-wetted surface.
11. each the described heat exchanger according in the aforementioned claim is characterized in that, described exchange piping comprises flat tube (2) and fin (3), and wherein, whole described exchange piping is covered by described coating (6).
12. a method that is used for making according to each described heat exchanger of aforementioned claim is characterized in that following steps:
A. by means of the described exchange piping of the welding assembly in the brazier (2,3);
B. on described exchange piping (2,3), apply especially liquid mixture, be used to produce described coating (6).
13. method according to claim 12 is characterized in that following steps:
Barrier layer (5) is being set on described exchange piping (2,3) before the execution in step b, especially is being designed to the barrier layer (5) of conversion coating.
14., it is characterized in that following steps according to claim 12 or 13 described methods:
The dry described coating (6) that in step b, applies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009013054.3 | 2009-03-16 | ||
| DE102009013054A DE102009013054A1 (en) | 2009-03-16 | 2009-03-16 | heat exchangers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101839591A true CN101839591A (en) | 2010-09-22 |
| CN101839591B CN101839591B (en) | 2014-03-19 |
Family
ID=42263423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010132263.XA Expired - Fee Related CN101839591B (en) | 2009-03-16 | 2010-03-16 | Heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2236974A3 (en) |
| CN (1) | CN101839591B (en) |
| DE (1) | DE102009013054A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148718A (en) * | 2013-03-15 | 2013-06-12 | 上海交通大学 | Microchannel heat exchanger |
| CN105849499A (en) * | 2013-11-20 | 2016-08-10 | 法雷奥热系统公司 | Heat exchanger coating |
| CN106662416A (en) * | 2014-07-31 | 2017-05-10 | 开利公司 | Coated heat exchanger |
| CN111692741A (en) * | 2019-08-01 | 2020-09-22 | 浙江三花智能控制股份有限公司 | Heat exchanger, preparation method thereof and heat exchange system |
| US11453197B2 (en) | 2018-07-03 | 2022-09-27 | Hamilton Sundstrand Corporation | Antimicrobial surfaces for flow path components |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10314700A1 (en) | 2003-03-31 | 2004-10-14 | Behr Gmbh & Co. Kg | Method for producing surface-modified workpieces |
| DE102004049107A1 (en) * | 2004-10-07 | 2006-04-13 | Behr Gmbh & Co. Kg | coating process |
| DE102012101980A1 (en) * | 2012-03-08 | 2013-09-12 | Alpha-Innotec Gmbh | Vaporizer for refrigerant circuit in air and/or water heat pump heating system for heating e.g. industrial water, has nano-coating coated on outer surface of vaporizer, where ice is set on region of vaporizer in normal operation condition |
| DE102017206940A1 (en) | 2017-04-25 | 2018-10-25 | Mahle International Gmbh | Method for producing a heat exchanger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117130A (en) * | 1994-04-08 | 1996-02-21 | 日本电装株式会社 | Composite material containing aluminium metal and its production method |
| CN1767906A (en) * | 2003-03-31 | 2006-05-03 | 贝洱两合公司 | Heat exchanger and method for treating the surface of said heat exchanger |
| CN1768245A (en) * | 2003-03-31 | 2006-05-03 | 贝洱两合公司 | Heat exchanger and method for treating the surface of said heat exchanger |
| CN1793770A (en) * | 2004-12-24 | 2006-06-28 | 三星电子株式会社 | Corrosion-resistant agent and heat exchanger with it |
| CN101165450A (en) * | 2006-10-19 | 2008-04-23 | 日立空调·家用电器株式会社 | Heat exchanger |
| EP2012081A1 (en) * | 2007-07-05 | 2009-01-07 | Valeo Systemes Thermiques | Hydrophilic coating for a heat exchanger |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366004A (en) * | 1991-08-30 | 1994-11-22 | General Motors Corporation | Biostatic/biocidal coatings for air conditioner cores |
| DE19750122A1 (en) * | 1997-11-13 | 1999-05-20 | Volkswagen Ag | Microbiocidally effective surfaces for reduction of smell and microbial population in air conditioning units |
| FR2837272B1 (en) * | 2002-03-13 | 2004-07-16 | Valeo Climatisation | METHOD FOR TREATING THE SURFACE OF A BRAZED EVAPORATOR |
| DE10314700A1 (en) | 2003-03-31 | 2004-10-14 | Behr Gmbh & Co. Kg | Method for producing surface-modified workpieces |
| DE10355833A1 (en) * | 2003-11-26 | 2005-06-23 | Behr Gmbh & Co. Kg | heat exchangers |
| DE102004049107A1 (en) * | 2004-10-07 | 2006-04-13 | Behr Gmbh & Co. Kg | coating process |
| DE102008004186A1 (en) | 2007-01-17 | 2008-07-24 | Behr Gmbh & Co. Kg | Treating a constructional element e.g. an evaporator with biocide, comprises arranging biocide material in a second area of constructional element, dissolving out biocide by a carrier medium and conducting biocide to first area |
-
2009
- 2009-03-16 DE DE102009013054A patent/DE102009013054A1/en not_active Ceased
-
2010
- 2010-03-01 EP EP10155043.2A patent/EP2236974A3/en not_active Withdrawn
- 2010-03-16 CN CN201010132263.XA patent/CN101839591B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117130A (en) * | 1994-04-08 | 1996-02-21 | 日本电装株式会社 | Composite material containing aluminium metal and its production method |
| CN1767906A (en) * | 2003-03-31 | 2006-05-03 | 贝洱两合公司 | Heat exchanger and method for treating the surface of said heat exchanger |
| CN1768245A (en) * | 2003-03-31 | 2006-05-03 | 贝洱两合公司 | Heat exchanger and method for treating the surface of said heat exchanger |
| CN1793770A (en) * | 2004-12-24 | 2006-06-28 | 三星电子株式会社 | Corrosion-resistant agent and heat exchanger with it |
| CN101165450A (en) * | 2006-10-19 | 2008-04-23 | 日立空调·家用电器株式会社 | Heat exchanger |
| EP2012081A1 (en) * | 2007-07-05 | 2009-01-07 | Valeo Systemes Thermiques | Hydrophilic coating for a heat exchanger |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148718A (en) * | 2013-03-15 | 2013-06-12 | 上海交通大学 | Microchannel heat exchanger |
| CN105849499A (en) * | 2013-11-20 | 2016-08-10 | 法雷奥热系统公司 | Heat exchanger coating |
| CN105849499B (en) * | 2013-11-20 | 2018-11-27 | 法雷奥热系统公司 | heat exchanger coating |
| CN106662416A (en) * | 2014-07-31 | 2017-05-10 | 开利公司 | Coated heat exchanger |
| US10760858B2 (en) | 2014-07-31 | 2020-09-01 | Carrier Corporation | Coated heat exchanger |
| US11453197B2 (en) | 2018-07-03 | 2022-09-27 | Hamilton Sundstrand Corporation | Antimicrobial surfaces for flow path components |
| CN111692741A (en) * | 2019-08-01 | 2020-09-22 | 浙江三花智能控制股份有限公司 | Heat exchanger, preparation method thereof and heat exchange system |
| WO2021018125A1 (en) * | 2019-08-01 | 2021-02-04 | 杭州三花研究院有限公司 | Heat exchanger and manufacturing method therefor, and heat exchange system |
| CN111692741B (en) * | 2019-08-01 | 2021-09-28 | 浙江三花智能控制股份有限公司 | Heat exchanger, preparation method thereof and heat exchange system |
| CN113669892A (en) * | 2019-08-01 | 2021-11-19 | 浙江三花智能控制股份有限公司 | Heat exchanger |
| CN113669892B (en) * | 2019-08-01 | 2022-10-14 | 浙江三花智能控制股份有限公司 | Heat exchanger |
| US11988464B2 (en) | 2019-08-01 | 2024-05-21 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Heat exchanger, method for making heat exchanger, and heat exchange system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2236974A3 (en) | 2014-04-30 |
| DE102009013054A1 (en) | 2010-09-23 |
| CN101839591B (en) | 2014-03-19 |
| EP2236974A2 (en) | 2010-10-06 |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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| EXPY | Termination of patent right or utility model |