CN202793096U - Hairpin type heat exchanger - Google Patents
Hairpin type heat exchanger Download PDFInfo
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- CN202793096U CN202793096U CN 201220425086 CN201220425086U CN202793096U CN 202793096 U CN202793096 U CN 202793096U CN 201220425086 CN201220425086 CN 201220425086 CN 201220425086 U CN201220425086 U CN 201220425086U CN 202793096 U CN202793096 U CN 202793096U
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Abstract
The utility model relates to a hairpin type heat exchanger. The hairpin type heat exchanger comprises a U-shaped heat exchange tube, a distance tube, a baffle plate, a first tube plate, a second tube plate and a U-shaped heat exchanger shell, wherein the U-shaped heat exchanger shell is mainly formed by a shell A section, a shell B section and a shell C section, two arms of the U-shaped heat exchanger shell are formed by the shell A section and the shell B section, and the shell C section is used as a bending section of the U-shaped heat exchanger shell; one end of the shell C section is welded with the shell A section, and the other end of the shell C section is welded with the shell B section; and the U-shaped heat exchange tube is integrally nested in the U-shaped heat exchanger shell, one end of the U-shaped heat exchange tube is in expansion connection or welding connection with the first tube plate, the other end of the U-shaped heat exchange tube is in expansion connection or welding connection with the second tube plate, and the baffle plate is fixedly arranged on the distance tube. Due to the structure, the free expansion and contraction of athe heat exchanger shell also can be realized under the work of heat stress, the heat transfer space between a shell sidepass medium and a tube sidepass medium is also enlarged at the same time, and the heat exchange time is prolonged.
Description
Technical field
The utility model relates to a kind of heat exchanger, is specifically related to the pipe heat exchanger that a kind of heat exchanger shell shape is " U " shape.
Background technology
The heat exchanger heat transfer tube bank of U-shaped heat exchange of heat pipe takes the shape of the letter U, the two ends of tube bank are fixed on the up and down position of same tube sheet, by the dividing plate in the bobbin carriage it is divided into import and two parts of outlet again, tube sheet is clamped between channel flange and the shell flange, connects with bolt.Because the U-shaped end of tube bank is not fixed, retractable has been eliminated the impact of thermal stress on tube bank fully, is applicable to the larger occasion of two fluid temperature differences.But in practice, heat exchanger generally is fixed on ground or the equipment by the base that arranges on the housing.When the two fluid heat transfer temperature difference of heat exchanger are larger, the housing of heat exchanger also unavoidably can be subject to the impact of thermal stress, but can not free-extension because housing integral body is fixed by base, certain distortion will inevitably occur in the effect lower bottom base in thermal stress, and the service life of this heat exchanger and heat transfer effect will certainly produce certain impact.
The utility model content
The purpose of this utility model provides a kind of hairpin-type heat exchanger, when the two fluid heat transfer temperature difference of heat exchanger are larger, not only can realize the free-extension of heat exchanger tube, the housing of heat exchanger also can be realized free-extension under the effect of thermal stress, reduced the impact of thermal stress heat exchanger global facility in the heat transfer process.
The technical scheme that realizes the utility model purpose is: a kind of hairpin-type heat exchanger, comprise U-shaped heat exchanger tube, distance sink tube, deflection plate, the first tube sheet, the second tube sheet and U-shaped heat exchanger shell, wherein the U-shaped heat exchanger shell mainly is comprised of housing A section, housing B section and housing C section, housing A section and housing B section consist of two arms of U-shaped heat exchanger shell, and housing C section is the bending section of U-shaped heat exchanger shell; One end of housing C section and the welding of housing A section, the other end and the welding of housing B section; U-shaped heat exchanger tube integral body is nested in the U-shaped heat exchanger shell, and two arms of U-shaped heat exchanger tube are positioned at respectively on the first tube sheet and the second tube sheet, two arms of U-shaped heat exchanger tube respectively with the first tube sheet, the second tube plate expanded-connecting or welding.
In order to make pipe side medium and the sufficient heat exchange of shell-side medium even, the bending curvature of U-shaped heat exchanger shell C section can be kept equating with the bending curvature size of U-shaped heat exchanger tube bent intermediate section.
This hairpin-type heat exchanger becomes U-shaped by the housing design with heat exchanger, makes the heat transfer process middle shell also can realize free-extension under the operation of thermal stress, is applicable to the heat exchange of high pressure operating mode; Transmit the space owing to increased the heat of shell side medium and tube side medium simultaneously, especially in the occasion of temperature intersection and degree of depth heat exchange, have good heat transfer effect.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model according to specific embodiment also by reference to the accompanying drawings.
Fig. 1 is the structural representation of hairpin-type heat exchanger.
Fig. 2 is that housing C section is cut apart schematic diagram.
Fig. 3 is the heat exchanger U-shaped housing schematic diagram of hairpin-type.
Fig. 4 is the U-shaped heat exchanger tube of hairpin-type heat exchanger and the assembling schematic diagram of U-shaped housing.
Wherein, 1 U-shaped heat exchanger tube, 2 distance sink tubes, 3 deflection plates, 4 housing A sections, the outlet of 5 shell-sides, 6 pipe side-entrances, 7 pipe side outlets, 8 housing B sections, 9 shell-side inlet, 10 housing C sections, 11 first tube sheets, 12 gussets, 13 second tube sheets, the curved shell of 14 major diameters, the curved shell of 15 minor diameters.
The specific embodiment
See Fig. 1, the utlity model has U-shaped heat exchanger tube 1, distance sink tube 2, deflection plate 3, the first tube sheet 11, the second tube sheet 13 and U-shaped heat exchanger shell, wherein the U-shaped heat exchanger shell mainly is comprised of housing A section 4, housing B section 8 and housing C section 10, housing A section 4 and housing B section 8 consist of two arms of U-shaped heat exchanger shell, and housing C section 10 is the bending section of U-shaped heat exchanger shell; Described housing C section 10 1 ends and the welding of housing A section, the other end and the welding of housing B section, U-shaped heat exchanger tube 1 integral body is nested in the U-shaped heat exchanger shell, and two arms of U-shaped heat exchanger tube are positioned on the first tube sheet 11 and the second tube sheet 13 and weld or expanded joints with described the first tube sheet 11 and the second tube sheet 13 respectively; Deflection plate 3 is fixed on the distance sink tube 2.
In order to make medium and the medium heat exchange between the two in the U-shaped heat exchanger tube tube chamber in the U-shaped heat exchanger shell chamber even, the bending curvature of U-shaped heat exchanger shell C section is kept equating with the bending curvature size of U-shaped heat exchanger tube 1.
Be provided with gusset 12 between housing A section and the housing B section, be used for supporting two arms of U-shaped heat exchanger shell, make between two arms stressed more even.
The concrete installation step of U-shaped heat exchanger tube and U-shaped housing is as described below.
(1) with housing C section 10 horizontal positioned; Central axis along housing C section vertically cuts into housing C section the curved shell 14 of major diameter and the curved shell 15 two parts (see figure 2)s of minor diameter that bending diameter differs in size.
(2) with the both ends of the surface of the curved shell 15 of step (1) medium-small diameter respectively with the integrally welded (see figure 3) of end face of housing A section 4 and housing B section 8.
(3) two arms of U-shaped heat exchanger tube 1 are passed respectively the cavity of housing A section 4 and housing B section 8 and be positioned at the first tube sheet and the second tube sheet on (see figure 4).
(4) after whole U-shaped heat exchanger tubes install, the both ends of the surface of the curved shell 14 of major diameter in the step (1) are connect with the both ends of the surface of housing A section, housing B section respectively, and forming housing C section with the welding of the shell face of the curved shell 15 of minor diameter, whole like this U-shaped heat-exchanging tube bundle is whole being nested in the U-shaped housing that is made of housing A section, housing B section and housing C section just.
In the use procedure, pipe side medium enters from pipe side-entrance 9, through flowing out from pipe side outlet 7 behind the U-shaped heat exchanger tube 1; The shell-side medium enters from shell-side inlet 9, flow out from shell-side outlet 5, because the flow direction of shell-side medium and pipe side medium is opposite, and the shell-side medium is through the long path transmission in U-shaped shell chamber, can realize managing the degree of depth heat exchange between side medium and shell-side medium, relatively common U-shaped heat exchanger heat transfer effect is better.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. hairpin-type heat exchanger, have U-shaped heat exchanger tube (1), housing, the first tube sheet (11) and the second tube sheet (13), it is characterized in that: described housing is the U-shaped housing, described U-shaped housing is divided into housing A section (4), housing B section (8) and housing C section (10), described housing A section (4) and described housing B section (8) consist of two arms of described U-shaped housing, and described housing C section (10) is the bending section at described U-shaped housing middle part; Described U-shaped heat exchanger tube (1) is nested in described U-shaped enclosure interior, and two arms of described U-shaped heat exchanger tube (1) are positioned on described the first tube sheet (11) and the second tube sheet (13).
2. a kind of hairpin-type heat exchanger according to claim 1 is characterized in that: the bending curvature of described U-shaped heat exchanger tube (1) bent intermediate section and the bending curvature equal and opposite in direction of described housing C section (10).
3. a kind of hairpin-type heat exchanger according to claim 1 is characterized in that: described housing C section (10) one ends and described housing A section (4) welding, the other end and described housing B section (8) welding;
4. a kind of hairpin-type heat exchanger according to claim 1,, it is characterized in that: described U-shaped heat exchanger tube (1) and described the first tube sheet (11) and described the second tube sheet (13) expanded joint or welding.
5. a kind of hairpin-type heat exchanger according to claim 1 is characterized in that: be provided with gusset 12 between described housing A section (4) and the described housing B section (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425086 CN202793096U (en) | 2012-08-24 | 2012-08-24 | Hairpin type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425086 CN202793096U (en) | 2012-08-24 | 2012-08-24 | Hairpin type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793096U true CN202793096U (en) | 2013-03-13 |
Family
ID=47820348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220425086 Expired - Fee Related CN202793096U (en) | 2012-08-24 | 2012-08-24 | Hairpin type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793096U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2530794A (en) * | 2014-10-03 | 2016-04-06 | Rolls Royce Plc | Heat exchanger |
| CN106323047A (en) * | 2016-08-31 | 2017-01-11 | 吉林大学 | Heating device used for high-pressure fluid media |
| CN107105676A (en) * | 2015-02-03 | 2017-08-29 | Lbc焙烤设备公司 | Convection oven with linear contraflow heat exchanger |
| CN112792428A (en) * | 2020-12-31 | 2021-05-14 | 国电泉州热电有限公司 | Forming process of U-shaped bent pipe |
-
2012
- 2012-08-24 CN CN 201220425086 patent/CN202793096U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2530794A (en) * | 2014-10-03 | 2016-04-06 | Rolls Royce Plc | Heat exchanger |
| CN107105676A (en) * | 2015-02-03 | 2017-08-29 | Lbc焙烤设备公司 | Convection oven with linear contraflow heat exchanger |
| CN106323047A (en) * | 2016-08-31 | 2017-01-11 | 吉林大学 | Heating device used for high-pressure fluid media |
| CN112792428A (en) * | 2020-12-31 | 2021-05-14 | 国电泉州热电有限公司 | Forming process of U-shaped bent pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |