CN102901392A - Thermal baffle for heat exchanger - Google Patents
Thermal baffle for heat exchanger Download PDFInfo
- Publication number
- CN102901392A CN102901392A CN2012103532523A CN201210353252A CN102901392A CN 102901392 A CN102901392 A CN 102901392A CN 2012103532523 A CN2012103532523 A CN 2012103532523A CN 201210353252 A CN201210353252 A CN 201210353252A CN 102901392 A CN102901392 A CN 102901392A
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- heat exchanger
- thermal insulation
- insulation board
- thermal baffle
- cooling tube
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Abstract
The invention discloses a thermal baffle for a heat exchanger. The thermal baffle comprises a plate body, and is characterized in that a plurality of air inlet holes with flanges are formed on the plate body; air outlet holes are formed at positions which correspond to cooling pipes at the air outlet end of the heat exchanger, and all the cooling pipes at the air outlet end are accommodated in the air outlet holes; the number and position of the air inlet holes correspond to that of the cooling pipes at the air inlet end of the heat exchanger; and each flange is inserted into the corresponding cooling pipe. According to the thermal baffle, waste gas can directly flow into the cooling pipes and does not directly impact a main plate, and the thermal stress at the welding line of the main plate and the cooling pipes can be effectively reduced, so that the reliability of the heat exchanger is improved; and moreover, a heat exchanger flange matched with the thermal baffle is not required to be made of a high-temperature-resistant material, the cost is reduced, and the reliability of the heat exchanger is greatly improved; and meanwhile, the thermal baffle has the function of a gasket, so that a part is reduced, and the product structure is compact.
Description
Technical field
The invention belongs to the heat exchanger technical field, relate in particular to a kind of heat exchanger thermal insulation board, it can be widely used on the various heat exchangers, specifically a kind of thermal insulation board for heat exchanger.
Background technology
In the application of heat exchanger, people are more and more higher to the reliability requirement of heat exchanger, and the weld seam at the gusset piece in hot junction and heat exchange element place very easily lost efficacy.For example:
Along with the increasingly stringent of emission request, EGR Technology is applied on the power set more and more, and various structure heat exchangers produce in succession.Wherein, the plate-fin structure heat exchanger because of its remarkable heat dispersion, is more used.
Conventional plate-fin structure heat exchanger, its gas wing passage is by a plurality of flat tube assembly cell formations.Single flat tube assembly unit is made of the heat exchange fin that flat tube and its inside plug.The eyelet welding that each flat tube assembly unit is corresponding with the two ends end plate connects, and consists of core assembly.The two ends end plate of core assembly again with housing, advance the welding such as (going out) air chamber and end cap.Welding water inlet interface, water outlet mouthpiece consist of the heat exchanger assembly on the housing.Like this, waste gas---waste gas flows in a part of flat tube assembly unit the circulation of flat tube assembly unit inside, flows out in another part flat tube assembly again, form U-shaped passage, perhaps waste gas flows in flat tube assembly unit one end, flows out from the other end, forms I type passage.The flat tube assembly unit outside and housing inner chamber circulation cooling fluid absorb the heat of waste gas and it are taken away.
There is following shortcoming in the plate fin type heat exchanger of this routine: during the heat exchanger operation, the flat tube assembly unit of housing and flat tube assembly unit and air inlet and the flat tube assembly unit of giving vent to anger, the degree of expanding with heat and contract with cold difference, thereby produce thermal stress at pipe and commissure, near the welding line joint of two end plates and flat tube assembly unit side section or the weld seam pipe itself very easily ftractures, and this is the shortcoming that all heat exchangers all exist.
Summary of the invention
What the present invention will solve is the defects that prior art exists, and aims to provide a kind of thermal insulation board for heat exchanger, makes the reliability of heat exchanger better.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of thermal insulation board for U-shaped heat exchanger, comprise plate body, it is characterized in that described plate body is provided with a venthole and a plurality of flanged air admission hole, described venthole is arranged on the position corresponding with heat exchanger outlet side cooling tube, and contains all outlet side cooling tubes; The quantity of described air admission hole and position are corresponding one by one with heat exchanger inlet end cooling tube, and each flange is inserted in the corresponding cooling tube.
The present invention also will provide a kind of thermal insulation board for I type heat exchanger, comprise plate body, it is characterized in that described plate body is provided with a plurality of flanged air admission holes, the quantity of described air admission hole and position are corresponding one by one with heat exchanger inlet end cooling tube, and each flange is inserted in the corresponding cooling tube.
Thermal insulation board of the present invention, owing to being provided with flanged hole in the position corresponding with air inlet side cooling tube, waste gas is flowed directly in the cooling tube, waste gas will can directly not impact mainboard, can effectively reduce the thermal stress of mainboard and cooling tube commissure, the reliability of heat exchanger is got a promotion.And because the present invention's self heat insulating function can make the heat exchanger flange that cooperates with thermal insulation board not need to adopt very resistant to elevated temperatures material, not only reduced cost, and greatly promoted the reliability of heat exchanger.Simultaneously, thermal insulation board of the present invention also has the function of pad concurrently, thereby has reduced by a part, makes product structure more compact, has also reduced the manufacturing cost of product.
In the outlet side of U-shaped heat exchanger, because cooled EGT is lower, can not need heat insulating function, therefore only need to flanged hole be set in the inlet end place corresponding with cooling tube, can reduce manufacturing cost like this, reduce weight.
Thermal insulation board of the present invention can be assemblied on the heat exchanger, also can be welded on the heat exchanger, and described heat exchanger can be multi coil, also can be single row of tubes.
As a further improvement on the present invention, with the boss that is provided with sealing function on the plane that the heat exchanger flange face cooperates, inlet channel, outlet passageway and environment or inlet channel and environment can be separated.
Description of drawings
Fig. 1 is the schematic perspective view that thermal insulation board of the present invention is applied to U-shaped heat exchanger;
Fig. 2 is the partial sectional view of Fig. 1 inlet end;
Fig. 3 is the structural representation of a kind of thermal insulation board for U-shaped heat exchanger of the present invention;
Fig. 4 is the schematic diagram that thermal insulation board of the present invention is applied to I type heat exchanger;
Fig. 5 is the left view of heat exchanger among Fig. 4;
Fig. 6 is the structural representation of a kind of embodiment of a kind of thermal insulation board for I type heat exchanger of the present invention;
Fig. 7 is the structural representation of the another kind of embodiment of a kind of thermal insulation board for I type heat exchanger of the present invention;
Among the figure: 1-thermal insulation board, 2-heat exchanger, 11-boss, the flange on the 12-thermal insulation board, the venthole on the 13-thermal insulation board, 14-inlet end cooling tube, the air admission hole on the 15-thermal insulation board, 16-mainboard, 17-flange, 20-outlet side cooling tube, the A-air inlet, B-gives vent to anger, C-water inlet, D-water outlet.
The specific embodiment
The present invention is described further with specific embodiment below in conjunction with accompanying drawing.
Referring to figs. 1 through Fig. 3, a kind of thermal insulation board for U-shaped heat exchanger of the present invention, described thermal insulation board 1 can be assemblied on the heat exchanger 2, also can be welded on the heat exchanger 2.The plate body of thermal insulation board 1 is provided with the air admission hole 15 of a venthole 13 and one group of flanged pin 12, and described venthole 13 is arranged on the position corresponding with heat exchanger 2 outlet side cooling tubes 20, and contains all outlet side cooling tubes 20; The quantity of described air admission hole 15 and position are corresponding one by one with heat exchanger 2 inlet end cooling tubes 14, and each flange 12 is inserted in the corresponding cooling tube 14, waste gas is flowed directly in the cooling tube 14, waste gas just can directly not impact mainboard 16 like this, reduces the thermal stress of mainboard 16 and cooling tube 14 commissures.Thermal insulation board 1 is provided with the boss 11 of sealing function on the plane that cooperates with heat exchanger 2 flanges 17, inlet channel, outlet passageway and environment can be separated, and is provided with a large venthole 13 in the side of giving vent to anger.
With reference to Fig. 4 to Fig. 6, a kind of embodiment of a kind of thermal insulation board for I type heat exchanger of the present invention.Described thermal insulation board 1 can be assemblied on the heat exchanger 2, also can be welded on the heat exchanger 2, the plate body of described thermal insulation board 1 is provided with the air admission hole 15 of two groups of flanged pins 12, the quantity of described air admission hole 15 and position are corresponding one by one with heat exchanger 2 inlet end cooling tubes 14, and each flange 12 is inserted in the corresponding cooling tube 14, waste gas is flowed directly in the cooling tube 14, and waste gas just can directly not impact mainboard 16 like this, reduces the thermal stress of mainboard 16 and cooling tube 14 commissures.Be provided with the boss 11 of sealing function on the described thermal insulation board 1 on the plane that cooperates with heat exchanger 2 flanges 17, inlet channel and environment can be separated.
With reference to Fig. 7, the another kind of embodiment of a kind of thermal insulation board for I type heat exchanger of the present invention.Be with Fig. 6 embodiment difference: in the present embodiment, the plate body of described thermal insulation board 1 is provided with the air admission hole 15 of one group of flanged pin 12.All the other structures are identical with Fig. 6 embodiment, also can reach identical technique effect.
According to the different arrangement forms of heat exchanger 2 inlet end cooling tubes 14, the air admission hole 15 of flanged pin 12 of the present invention can also be that multiple row is arranged.
What should be understood that is: above-described embodiment is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.
Claims (6)
1. thermal insulation board that is used for U-shaped heat exchanger, comprise plate body, it is characterized in that described plate body is provided with the air admission hole (15) of a venthole (13) and a plurality of flanged pin (12), described venthole (13) is arranged on the position corresponding with heat exchanger (2) outlet side cooling tube (20), and contains all outlet side cooling tubes (20); The quantity of described air admission hole (15) and position are corresponding one by one with heat exchanger (2) inlet end cooling tube (14), and each flange (12) is inserted in the corresponding cooling tube (14).
2. a kind of thermal insulation board for U-shaped heat exchanger as claimed in claim 1 is characterized in that being provided with on the plane that cooperates with heat exchanger flange (17) boss (11) of sealing function.
3. a kind of thermal insulation board for U-shaped heat exchanger as claimed in claim 1 or 2 is characterized in that described thermal insulation board (1) assembles or is welded on the heat exchanger (2).
4. thermal insulation board that is used for I type heat exchanger, comprise plate body, it is characterized in that described plate body is provided with the air admission hole of a plurality of flanged pins (12) (15), the quantity of described air admission hole (15) and position are corresponding one by one with heat exchanger (2) inlet end cooling tube (14), and each flange (12) is inserted in the corresponding cooling tube (14).
5. a kind of thermal insulation board for I type heat exchanger as claimed in claim 4 is characterized in that being provided with on the plane that cooperates with heat exchanger flange (17) boss (11) of sealing function.
6. such as claim 4 or 5 described a kind of thermal insulation boards for I type heat exchanger, it is characterized in that described thermal insulation board (1) assembles or is welded on the heat exchanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103532523A CN102901392A (en) | 2012-09-20 | 2012-09-20 | Thermal baffle for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103532523A CN102901392A (en) | 2012-09-20 | 2012-09-20 | Thermal baffle for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102901392A true CN102901392A (en) | 2013-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103532523A Pending CN102901392A (en) | 2012-09-20 | 2012-09-20 | Thermal baffle for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102901392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605950A (en) * | 2015-12-24 | 2016-05-25 | 浙江东氟塑料科技有限公司 | Smoke-water heat exchanger and cleaning method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828712Y (en) * | 2005-07-25 | 2006-10-18 | 张兴财 | Plate connection structure between end cap mouth and pipe of pipe radiator |
| CN101375048A (en) * | 2006-01-23 | 2009-02-25 | 贝洱两合公司 | Heat exchanger |
| CN102619648A (en) * | 2012-03-21 | 2012-08-01 | 浙江银轮机械股份有限公司 | Plate-fin EGR (Exhaust Gas Recirculation) cooler with heat insulation function |
| CN202836318U (en) * | 2012-09-20 | 2013-03-27 | 浙江银轮机械股份有限公司 | Heat insulation board used for heat exchanger |
-
2012
- 2012-09-20 CN CN2012103532523A patent/CN102901392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828712Y (en) * | 2005-07-25 | 2006-10-18 | 张兴财 | Plate connection structure between end cap mouth and pipe of pipe radiator |
| CN101375048A (en) * | 2006-01-23 | 2009-02-25 | 贝洱两合公司 | Heat exchanger |
| CN102619648A (en) * | 2012-03-21 | 2012-08-01 | 浙江银轮机械股份有限公司 | Plate-fin EGR (Exhaust Gas Recirculation) cooler with heat insulation function |
| CN202836318U (en) * | 2012-09-20 | 2013-03-27 | 浙江银轮机械股份有限公司 | Heat insulation board used for heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605950A (en) * | 2015-12-24 | 2016-05-25 | 浙江东氟塑料科技有限公司 | Smoke-water heat exchanger and cleaning method thereof |
| CN105605950B (en) * | 2015-12-24 | 2017-06-23 | 浙江东氟塑料科技有限公司 | Flue gas water- to-water heat exchanger and its cleaning method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130130 |