CN1113215C - Heat exchanger and method of producing the same - Google Patents
Heat exchanger and method of producing the same Download PDFInfo
- Publication number
- CN1113215C CN1113215C CN97121288A CN97121288A CN1113215C CN 1113215 C CN1113215 C CN 1113215C CN 97121288 A CN97121288 A CN 97121288A CN 97121288 A CN97121288 A CN 97121288A CN 1113215 C CN1113215 C CN 1113215C
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- CN
- China
- Prior art keywords
- described metal
- heat exchanger
- metal cylinder
- keeper
- metal tube
- 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
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Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
To improve efficiency when the heat of the burning gas exchanging to a heat exchanger of the refrigeration agent, the invention discloses an heat exchanger, by winding a metallic tube for flowing a heat medium closely around a cylindrical aluminum body, where the metallic tube has a slice receiving the heat from the burning gas, and welding both ends of the metallic tube to fixing metal fittings, and screwing the metal fittings to the aluminum body.
Description
The present invention relates to a kind of exchange heat and the heat exchanger that passes to cold-producing medium that is used for burning gases.
Recently, use the cold-producing medium heated type aircondition of the combustion heat of combustion gas or fuel oil to be committed to actual use.
An example of traditional cold-producing medium heated type aircondition is described with reference to the accompanying drawings.
Fig. 5 is the stereogram of a traditional cold-producing medium heating heat exchanger.Fig. 6 is the cutaway view of cold-producing medium heating heat exchanger shown in Figure 5.Fig. 7 is the cutaway view of amplification of the copper pipe standing part of cold-producing medium heating heat exchanger shown in Figure 5.
As shown in Figure 5, traditional cold-producing medium heating heat exchanger comprises a heat exchanger assembly 1 and a burner part 2.Heat exchanger assembly 1 comprises that an aluminum barrel 3 and is fixed in the copper bend pipe 4 of aluminum barrel 3 outer surfaces.In addition, the structure of this heat exchanger is made and is made the burning gases that produced in the burner part 2 of heat exchanger assembly 1 one ends flow through the inner space of aluminum barrel 3.Cold-producing medium such as R22 or water is flowed through around aluminum barrel 3 and the copper bend pipe 3 that is provided with.
The aluminum barrel 3 of this cold-producing medium heating heat exchanger is by extrusion molding, and the inside of aluminum barrel 3 has many fin 3a, is used for absorbing heat from the burning gases that burner part 2 is produced.
As shown in Figure 6 and Figure 7, the copper pipe 4 that heat supply exchange is flow through with cold-producing medium is by compressing to handle and keeps locating being formed at copper pipe keeper 3b on aluminum barrel 3 outer surfaces, and is fixed on the aluminum barrel 3.Because copper pipe 4 is fix by compressing of copper pipe keeper 3b handled, therefore, the heat that absorbs from the inner surface of fin 3a and aluminum barrel 3 is delivered to the cold-producing medium of the copper pipe 4 of flowing through by copper pipe keeper 3b.
Yet in having the traditional heat exchangers of said structure, cold-producing medium is upstream side (high temperature side) and downstream (low temperature side) of the burning gases by the aluminum barrel 3 of flowing through alternately.This structure causes many thermal losses, has reduced the thermal efficiency.
In addition, the copper pipe 4 of traditional heat exchangers has straight-tube portion and U-shaped tube portion, thereby the number of spare parts of copper pipe increases.And copper pipe 4 inserts the copper pipe keeper 3b of aluminum barrels 3 earlier, and then be fixed in that copper pipe keeper 3b goes up and with they tight contacts.Therefore, must carry out tube swelling and handle, expansion and fixing copper pipe 4 on the whole length of copper pipe 4 vertical straight-tube portions.
As mentioned above, traditional heat exchanger needs many production processes, such as brazing operation that straight-tube portion is connected in the U-shaped tube portion and tube swelling operation etc., makes production cost higher.
Therefore, an object of the present invention is to provide the heat exchanger that a kind of production cost is lower, heat exchanger effectiveness is higher.
To achieve these goals, heat exchanger of the present invention comprises:
Substantially a cylindrical circular metal cylinder, it has the fin that is used for receiving from burning gases heat integratedly, and has the opening that passes through for burning gases at two ends,
For the metal tube that cold-producing medium flows through, described metal tube is wound on the outer surface of metal cylinder spirally, and contacts with this intimate,
Be fixed on the metal cylinder, be used for keeper on the metal cylinder is fixed at the metal tube two ends.
The said structure of heat exchanger of the present invention can strengthen heat exchanger effectiveness, significantly reduces production costs.
In addition, the production method of heat exchanger of the present invention comprises following operation:
One first keeper is connected in the outer surface of metal cylinder with screw, and this metal cylinder has the fin that is used for receiving from burning gases heat integratedly, and has the opening that passes through for burning gases at its two ends,
One end of the metal tube that will flow through for cold-producing medium is fixed in first keeper,
By metal cylinder is rotated along a predetermined direction, metal tube is wound on the outer surface of metal cylinder, and contacts with this intimate,
With metal tube after twining the predetermined number of turns on the metal cylinder, one second keeper is connected in the other end of metal cylinder outer surface with screw,
Metal tube is fixed in second keeper,
Metal tube is cut into suitable length.
The production method of heat exchanger of the present invention only needs less manufacturing procedure, and is comparatively simple, thereby can significantly reduce production costs.
By detailed description below in conjunction with accompanying drawing, will be more readily understood structure of the present invention and content and other purpose and characteristics, in the accompanying drawing:
Fig. 1 is the front view of the heat exchanger of first embodiment of the invention;
Fig. 2 is the side view of heat exchanger shown in Figure 1;
Fig. 3 is the details amplification view of copper pipe standing part of the heat exchanger of this first embodiment;
Fig. 4 is the side view of copper pipe winding method in the expression heat exchanger of the present invention;
Fig. 5 is the stereogram of traditional heat exchanger;
Fig. 6 is the cutaway view of traditional heat exchangers shown in Figure 5;
Fig. 7 is the details amplification view of the copper pipe standing part in the traditional heat exchangers.
Obviously, some or all accompanying drawings all are illustrative schematic illustration, the relative size or the position of all parts shown in there is no need to express.
First embodiment of heat exchanger of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the front view of the heat exchanger of first embodiment of the invention, and Fig. 2 is the side view of heat exchanger shown in Figure 1.Heat exchanger shown in Fig. 1 is used as cold-producing medium heating usefulness in aircondition.This cold-producing medium heating heat exchanger is used for making the cold-producing medium heating in heating operation.
As shown in Figure 1, the cold-producing medium heating heat exchanger of this first embodiment comprises that a heat exchange unit 10 and is arranged on the burner part 11 of heat exchange unit 10 right-hand members.Heat exchange unit 10 comprises a metal cylinder 12 and the metal tube 13 that supplies cold-producing medium to pass through that a heat supply gas flows through.Metal tube 13 is fixed around the outer surface of metal cylinder 12.In this first embodiment, metal cylinder 12 is aluminum barrels that are shaped with aluminium extrusion, and metal tube 13 is made of copper.Below, metal cylinder 12 is called " aluminum barrel 12 ", and metal tube is called " copper pipe 13 ".
As depicted in figs. 1 and 2, copper pipe 13 is wound on the outer surface of aluminum barrel 12 along the direction that is basically perpendicular to the bus of aluminum barrel 12 outer surfaces.Copper pipe 13 twines multi-turn on aluminum barrel 12, the adjacent pipe portion of copper pipe 13 is closely contact each other.That is to say that copper pipe 13 is roughly along being wound on the outer surface of aluminum barrel 12 with the crossing circumference that forms of the outer surface of aluminum barrel 12 by a plane that is basically perpendicular to aluminum barrel 12 central axis in the mode of spiral.A kind of cold-producing medium such as R22 or water flows through copper pipe 13.
The burner part 11 that is arranged on heat exchange unit 10 1 ends is constructed such that burning gases flow into the inner space of aluminum barrel 12.
The aluminum barrel 12 of cold-producing medium heating heat exchanger is used extrusion molding.Have many fin 12a, 12b in the inboard of aluminum barrel 12, the burning gases that are used for being produced with burner part 11 carry out heat exchange efficiently.As shown in Figure 2, fin 12a is configured as has bigger shape, and fin 12b is configured as has less shape, and these large and small fins alternately are provided with, and is used for strengthening the effect that absorbs heat from burning gases.Fin 12a, 12b are the projectioies of many band shapes, and they extend on the direction that is basically parallel to the combustion gas flow direction.
Fig. 3 is the details amplification view of copper pipe standing part of the heat exchanger of this first embodiment.
As shown in Figures 2 and 3, copper pipe 3 is wound on the outer surface of aluminum barrel 12 spirally, and contacts with this intimate, and the adjacent pipe portion of copper pipe 13 is closely contact each other.The refrigerant inlet end of copper pipe 13 and refrigerant outlet end are with two keepers, and just copper keeper 15,15 is fixed on the aluminum barrel 12.
As shown in Figure 3, copper keeper 15 usefulness one screw 14 is fixed in the outer surface of aluminum barrel 12.In addition, copper pipe 13 is to utilize the silver-alloy brazing method to be welded in copper keeper 15, thereby copper pipe 13 is firmly fixed at aluminum barrel 12.
The copper pipe 13 that heat supply exchange system refrigerant flow is crossed is fixed on the outer surface of aluminum barrel 12, and contacts with this intimate.Therefore, the heat of the burning gases that absorb from the inner surface of aluminum barrel 12 and from large and small fin 12a, the 12b that is formed on aluminum barrel 12 inner surfaces is delivered to the cold-producing medium of the copper pipe 13 of flowing through by copper pipe 13.
In the cold-producing medium heating heat exchanger of first embodiment with said structure, the burning gases that burner part 11 is produced flow into the aluminum barrel 12 of heat exchange unit 10, and the heat of burning gases is delivered to aluminum barrel 12 by fin 12a, 12b.
In copper pipe 13, cold-producing medium enters an end of the copper pipe 13 that is arranged on aluminum barrel 12 high-temperature portion offices (right side of aluminum barrel 12 among Fig. 1), the just upstream side of burning gases.Then, cold-producing medium flows to the other end of the copper pipe 13 that is arranged on aluminum barrel 12 low-temp. portion offices (left side of aluminum barrel 12 among Fig. 1), and just the downstream of burning gases absorbs heat simultaneously.
As mentioned above, the cold-producing medium heating heat exchanger of first embodiment of the invention is constructed such that cold-producing medium little by little flows to the low temperature part from the high-temperature part of heat exchange unit 10.Therefore, compare with above-mentioned traditional heat exchanger, the heat loss of this heat exchanger is much smaller, and heat exchanger effectiveness is much higher.
In addition, because the copper pipe 13 of the cold-producing medium heating heat exchanger of this first embodiment comprises a single copper pipe, therefore, its number of spare parts will be lacked more than traditional heat exchangers.And the quantity of production and processing operation of copper pipe 13 that is used for fixing this first embodiment is far fewer than conventional production methods adopted.Therefore, can significantly reduce production costs.
And, be to adopt liquid or the analog that does not freeze even flow through the cold-producing medium of copper pipe, rather than adopt R22 or water, also can obtain and the similar effect of the resulting effect of above-mentioned first embodiment.
The heat exchanger of second embodiment of the invention is described with reference to the accompanying drawings.Fig. 4 is the cutaway view of side-looking of production method of the heat exchanger of expression second embodiment of the invention.According to this second embodiment, represent with identical label with corresponding part of first embodiment and member, suitable equally here to their being described in of doing in first embodiment.The heat exchanger of second embodiment cold-producing medium heating heat exchanger with first embodiment basically is identical.This second embodiment relates to a kind of production method of the cold-producing medium heating heat exchanger of first embodiment.
Below with reference to Fig. 4 heat exchanger production method according to second embodiment is described.
As shown in Figure 4, on the inner surface of the aluminum barrel 12 that is shaped by aluminium extrusion, alternately form many large and small fin 12a, 12b, be used for strengthening heat exchanger effectiveness.As shown in Figure 4, on the lug boss on the inner surface that is arranged at aluminum barrel 12 tops 120, be formed with big fin 12a ' and winglet sheet 12b '.Lug boss 120 is parts of inwall, and it is thicker than the other parts of aluminum barrel 12.The copper keeper 15 that is used for fixing the copper pipe 13 that is wound in aluminum barrel 12 outer surfaces is fixed in base portion 120 by screw 14.As mentioned above,, make the fixing usefulness of screw thread, can prevent that screw 14 from getting loose, and prevent that it is because of being exposed to the high hot damage that causes of aluminum barrel 12 by forming base portion 120.
When copper pipe 13 is wound on the outer surface of aluminum barrel 12, with screw 14 copper keeper 15 is fixed in a precalculated position of aluminum barrel 12 outer surfaces one end earlier.
Next, the space that copper pipe 13 is inserted between aluminum barrel 12 and the copper keeper 15.Then, with silver-alloy brazing one end of copper pipe 13 is fixedly welded on copper keeper 15.Fig. 4 represents that copper pipe 13 1 ends have been fixed in the state on the copper keeper 15.
With reference to Fig. 4, aluminum barrel 12 along the rotation of direction shown in the arrow A, applies a tension force around its central axis simultaneously on copper pipe 13.As a result, the intimate that is wound in spirally with aluminum barrel 12 of copper pipe 13 contacts.Simultaneously, copper pipe 13 twines the predetermined number of turns, makes adjacent pipe portion closely contact each other.
, after twining the predetermined number of turns on the aluminum barrel 12, the rear end that copper pipe 13 twines part is fixed on the aluminum barrel 12 at copper pipe 13 with another copper keeper 15.With screw aluminum barrel 12 is fixed in the rear end of copper keeper 15, copper pipe 13 is pressed against on the aluminum barrel 12, as copper pipe 13 twines front end partly fixing (Fig. 3).Then, with soldering copper keeper 15 is fixed in the rear end of copper pipe 13.After the rear end of copper pipe 13 is fixed on the aluminum barrel 12, copper pipe 13 is cut off in place.
The heat exchanger of second embodiment of the invention is produced as described above like that.
Disclosing as knowing in the description of above-mentioned second embodiment, directly is that copper pipe 13 is wound on the aluminum barrel 12 and produces heat exchanger of the present invention with a single copper pipe.Therefore, different to traditional heat exchangers shown in Figure 7 with Fig. 5, heat exchanger of the present invention does not need to be used for to make tube swelling processing that copper pipe and metal cylinder closely contact or the soldering that is used for the straight-tube portion of traditional copper pipe is connected in the U-shaped tube portion.Therefore, the production method of heat exchanger of the present invention can reduce the quantity of production process and significantly reduce production costs.
As mentioned above, in heat exchanger of the present invention, as making cold-producing medium be close to and be wound on the aluminum barrel around the flow copper pipe of metal tube of usefulness of aluminum barrel outer surface, wherein aluminum barrel is the metal cylinder that absorbs the fin that heat uses from burning gases as having.The two ends of metal tube all are welded in the copper keeper, and keeper is screwed.Utilize the said structure of heat exchanger of the present invention, cold-producing medium flows to the low temperature part from the high-temperature part of metal cylinder in order.Therefore, the heat exchanger effectiveness of heat exchanger of the present invention is significantly improved.And, because the metal tube of heat exchanger of the present invention comprises an individual tubes, therefore, the quantity of the quantity of its metal tube part in the conventional example, thereby can significantly reduce production costs.
In addition, in heat exchanger of the present invention, keeper is connected in an end of metal cylinder outer surface with screw, makes an end (entrance side) of the metal tube that flow of refrigerant uses be welded in this keeper.Rotating said fixing has the metal cylinder of metal tube, makes above metal tube is wrapped in, and metal tube is contacted with the metal cylinder intimate.After metal tube is wound into its other end (outlet side), metal tube to be fixed with positioning piece, this keeper is connected in the outer surface of metal cylinder again with screw.With welding the outlet side of metal tube is fixed in keeper, then metal tube is cut into and has suitable length and be used for connecting.So just finished the production process of heat exchanger of the present invention.
As mentioned above, the production method of heat exchanger of the present invention does not need as above-mentioned conventional production methods metal tube to be placed keeper longitudinally, and will this vertical keeper compresses and clamp this complexity of metal tube and the processing technology that bothers.Therefore, this production method can reduce the quantity of production process and significantly reduce production costs.
Except above-mentioned metal tube is welded in the embodiment of keeper with the silver-alloy brazing method, another kind of embodiment through changing can also be arranged, wherein metal tube is to weld with another kind of syndeton, for example uses the phosphor copper method for brazing.
Although abovely described the present invention, should be understood that, that this announcement should not think restrictive by present preferred embodiment.Behind the technology contents more than having read, variations and modifications all are conspicuous undoubtedly for the technical staff of the technical field of the invention.Therefore, claims should be regarded as and can cover all changes and the modification that drops in the real spirit and scope of the present invention.
Claims (6)
1. heat exchanger comprises:
Substantially a cylindrical circular metal cylinder, it has the fin that is used for receiving from burning gases heat integratedly, and has the opening that passes through for burning gases at two ends,
For the metal tube that cold-producing medium flows through, described metal tube is wound on the outer surface of described metal cylinder spirally, and contacts with this intimate,
Be fixed on the described metal cylinder, be used for keeper on the described metal cylinder is fixed at described metal tube two ends.
2. heat exchanger as claimed in claim 1 is characterized in that, the described metal tube that flows through for cold-producing medium twines along the direction of the bus that is basically perpendicular to described metal cylinder outer surface, and the adjacent tubes portion of described metal tube is arranged to closely contact each other.
3. heat exchanger as claimed in claim 1, it is characterized in that, described fin forms the projection of many band shapes, they extend on the direction that is basically parallel to the combustion gas flow direction, the height that described fin begins from described metal cylinder inner surface in described projection basically forms two kinds of sizes, be high type with non-high type, this described projection of two types alternately is provided with.
4. heat exchanger as claimed in claim 1 is characterized in that, it is the part of described metal barrel that a lug boss is arranged, and described lug boss is thicker than the other parts of described metal cylinder, is used for fixing described keeper.
5. heat exchanger as claimed in claim 1 is characterized in that described metal cylinder is shaped by aluminium extrusion, and described metal tube and described keeper are made of copper.
6. the production method of a heat exchanger comprises following operation:
One first keeper is connected in the outer surface of described metal cylinder with screw, and described metal cylinder has the fin that is used for receiving from burning gases heat integratedly, and has the opening that passes through for burning gases at its two ends,
One end of the described metal tube that will flow through for cold-producing medium is fixed in described first keeper,
By described metal cylinder is rotated along a predetermined direction, described metal tube is wound on the outer surface of described metal cylinder, and contacts with described intimate,
With described metal tube after twining the predetermined number of turns on the described metal cylinder, one second keeper is connected in the other end of described metal cylinder outer surface with screw,
Described metal tube is fixed in described second keeper,
Described metal tube is cut into suitable length.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP296088/1996 | 1996-11-08 | ||
| JP296088/96 | 1996-11-08 | ||
| JP29608896A JP3368773B2 (en) | 1996-11-08 | 1996-11-08 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1182201A CN1182201A (en) | 1998-05-20 |
| CN1113215C true CN1113215C (en) | 2003-07-02 |
Family
ID=17828972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97121288A Expired - Fee Related CN1113215C (en) | 1996-11-08 | 1997-10-30 | Heat exchanger and method of producing the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3368773B2 (en) |
| KR (1) | KR100255472B1 (en) |
| CN (1) | CN1113215C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1529191B1 (en) * | 2002-08-09 | 2012-02-01 | Ashe Morris Limited | Reduced volume heat exchangers |
| CN101922792B (en) * | 2010-09-10 | 2012-02-29 | 无锡锡州机械有限公司 | Cylindrical heat exchanger |
| CN101943475B (en) * | 2010-09-28 | 2012-05-30 | 无锡锡州机械有限公司 | Combustion chamber structure for heat exchanger |
| CN104842079B (en) * | 2014-02-19 | 2018-01-09 | 李亚臣 | Cable bus opening heating collar and its application in the welding of cable bus copper pipe |
| CN107160179A (en) * | 2017-07-17 | 2017-09-15 | 安徽中佳自动化科技有限公司 | A kind of automatic machine-shaping production technology of evaporator tube |
-
1996
- 1996-11-08 JP JP29608896A patent/JP3368773B2/en not_active Expired - Fee Related
-
1997
- 1997-10-30 CN CN97121288A patent/CN1113215C/en not_active Expired - Fee Related
- 1997-11-08 KR KR1019970058870A patent/KR100255472B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980042219A (en) | 1998-08-17 |
| JP3368773B2 (en) | 2003-01-20 |
| CN1182201A (en) | 1998-05-20 |
| JPH10141808A (en) | 1998-05-29 |
| KR100255472B1 (en) | 2000-05-01 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |