CN202793101U - Leakproof dual-tube and dual-tube sheet heat exchanger - Google Patents
Leakproof dual-tube and dual-tube sheet heat exchanger Download PDFInfo
- Publication number
- CN202793101U CN202793101U CN 201220422899 CN201220422899U CN202793101U CN 202793101 U CN202793101 U CN 202793101U CN 201220422899 CN201220422899 CN 201220422899 CN 201220422899 U CN201220422899 U CN 201220422899U CN 202793101 U CN202793101 U CN 202793101U
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- heat exchanger
- tube sheet
- intermediate medium
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Abstract
The utility model relates to a leakproof dual-tube and dual-tube sheet heat exchanger which comprises a heat exchange tube, an intermediate medium tube, a first front tube plate, a second front tube plate, a first rear tube plate, a second rear tube plate and a shell, wherein a cavity is arranged between the first front tube plate and the second front tube plate, and a cavity is arranged the first rear tube plate and the second rear tube plate; the heat exchange tube is embedded in the intermediate medium tube; an intermediate medium cavity is formed by the outer tube wall of the heat exchange tube and the inner tube wall of the intermediate medium tube, the intermediate medium cavity is respectively communicated with the cavity between the two front tube plates and the cavity between the two rear tube plates along the intermediate medium tube, and an expansion tank is arranged on the wall of the cavity between the two front tube plates or the wall of the cavity between the two rear tube plates. The leakproof dual-tube and dual-tube sheet heat exchanger is capable of preventing leaking in the connection part between the heat exchange tube of the heat exchanger and the tube plate, and also capable of avoiding the danger possibly caused by reaction generated by direct contact of mediums of the rear shell side and the tube side after a heat exchange tube leaks.
Description
Technical field
The utility model relates to a kind of pipe heat exchanger, relate in particular to a kind of two-tube double tube plate heat exchanger that can prevent the heat exchanger tube leakage of heat exchanger, be applicable to cause the industry of the grave dangers such as blast and the industry higher to environmental requirement to pipe side medium and the mixing of shell-side medium.
Background technology
Shell-and-tube heat exchanger is the common processing equipment of carrying out heat exchange operation, be widely used in the industrial departments such as chemical industry, oil, petrochemical industry, electric power, light industry, metallurgy, atomic energy, shipbuilding, aviation, heat supply, particularly in petroleum refining and chemical processing equipment, occupy extremely important status.But the reasons such as shell-and-tube heat exchanger is loaded unstable owing to long-time running, production and concentration of medium exceeds standard unavoidably can be leaked.The insecurity that present double tube plate heat exchanger has just avoided the leakage of heat exchanger tube and tube sheet junction to cause is if but heat exchanger tube occurs to reveal still can't be avoided.Enterprise generally also all is the concentration from the control cooling medium, the Leakage probability that reinforcement repair and maintenance equal angles reduces heat exchanger aborning at present, but, can cause the industry of the grave dangers such as blast and the industry occasion higher to environmental requirement at some to pipe side medium and the mixing of shell-side medium, for example, such as industries such as chemical industry, metallurgy, food, polysilicons, in case leak, will cause irremediable life and property loss, solve the heat exchanger tube generation leakage problem of these special occasions, seem very urgent.
The utility model content
The purpose of this utility model provides a kind of two-tube pipe heat exchanger of safety leakage proof, can effectively avoid the heat exchanger tube of heat exchanger to leak after pipe side medium directly contact with the shell-side medium and produce the caused danger of chemical reaction.
The technical scheme that realizes the utility model purpose is: a kind of two-tube double tube plate heat exchanger of anti-leak comprises heat exchanger tube, intermediate medium pipe, the first front tube sheet, the second front tube sheet, the first back tube sheet, the second back tube sheet and housing; Wherein be provided with cavity between the first front tube sheet and the second front tube sheet, be provided with cavity between the first back tube sheet and the second back tube sheet; Heat exchanger tube is nested in the intermediate medium pipe; The inner tubal wall of the outer tube wall of heat exchanger tube and intermediate medium pipe has formed the intermediate medium chamber, the intermediate medium chamber along the intermediate medium pipe respectively and the cavity between the cavity between the first front tube sheet and the second front tube sheet, the first back tube sheet and described the second back tube sheet mutually connect; On the cavity wall between the first front tube sheet and the second front tube sheet or the cavity wall between the first back tube sheet and the second back tube sheet be provided with expansion drum.
Concrete, heat exchanger tube be connected with the intermediate medium pipe respectively with the second front tube sheet be connected the back tube sheet expanded joint and be connected; Even for the heat transmission that makes intermediate medium, intermediate medium pipe and heat exchanger tube are arranged to coaxial.
The utility model is by having set up an intermediate medium pipe on the basis of common double tubular sheet heat exchanger, pipe side medium contacts with the direct of shell-side medium when having cut off the heat exchanger tube leakage by the intermediate medium in the intermediate medium chamber, can cause the industry of the grave dangers such as blast and the higher industry of environmental requirement is had very good application prospect pipe side medium and the mixing of shell-side medium at some.
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 the two-tube double tube plate heat exchanger of anti-leak.
Fig. 2 be heat exchanger tube and intermediate medium pipe as a whole with the expanded joint schematic diagram of the second front tube sheet.
Fig. 3 be heat exchanger tube and intermediate medium pipe as a whole with the expanded joint schematic diagram of the first back tube sheet.
Wherein, 1 heat exchanger tube, 2 intermediate medium pipes, 3 intermediate medium chambeies, 4 first front tube sheets, 5 second front tube sheets, 6 housings, 7 expansion drums, 8 first back tube sheets, 9 second back tube sheets, 10 shell chambeies, 11 pipe imports, 12 pipe outlets, the outlet of 13 shells, 14 shell imports.
The specific embodiment
See Fig. 1, the utlity model has heat exchanger tube 1, intermediate medium pipe 2, the first front tube sheet 4, the second front tube sheet 5, the first back tube sheet 8, the second back tube sheet 9 and housing 6; Wherein be provided with cavity between the first front tube sheet 4 and the second front tube sheet 5, be provided with cavity between the first back tube sheet 8 and the second back tube sheet 9; Be connected with expansion drum 7 on the cavity wall between the first back tube sheet 8 and the second back tube sheet 9; Heat exchanger tube 1 is nested in the intermediate medium pipe 2, and even for the heat transmission that makes intermediate medium, intermediate medium pipe 2 and heat exchanger tube 1 are arranged to coaxial; Heat exchanger tube 1 are connected with the intermediate medium pipe as a whole respectively with the second front tube sheet 5 be connected back tube sheet 8 expanded joints and be connected (seeing Fig. 2 and Fig. 3); The inner tubal wall of the outer tube wall of heat exchanger tube 1 and intermediate medium pipe 2 has formed intermediate medium chamber 3, intermediate medium chamber 3 along intermediate medium pipe 2 respectively and the cavity between cavity, the first back tube sheet 8 and the second back tube sheet 9 between described the first front tube sheet 4 and described the second front tube sheet 5 mutually connect; Cavity wall between the first back tube sheet 8 and described the second back tube sheet 9 is provided with expansion drum 7.
Concrete structure is identical with embodiment 1, and its difference is, expansion drum 7 is located on the cavity wall between the first front tube sheet 4 and the second front tube sheet 5.
In the use procedure, pipe side medium flows out from pipe outlet 12 through heat exchange after pipe import 11 enters, and the shell-side medium enters through heat exchange from shell import 14 and flows out from shell outlet 13; Select a kind of being difficult for and pipe side medium and the aitiogenic intermediate medium of shell-side medium (such as the more stable materials such as Ar of chemical property); intermediate medium is circulated in the whole intermediate medium chamber 3 by expansion drum 7; so many protections of middle dielectric layer between the medium in the medium in the heat exchanger tube 1 and the shell chamber 10, the medium when having avoided leaking in the shell chamber 10 and direct contact of heat exchanger tube 1 interior medium.Manage side medium and shell-side medium this moment and mainly indirectly realize the exchange of heat by the heat transmission of intermediate medium.In addition, because have a certain amount of intermediate medium in advance, when reducing, the intermediate medium consumption in the middle dielectric cavity 3 can remedy at any time in the expansion drum 7.
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 (3)
1. the two-tube double tube plate heat exchanger of an anti-leak has heat exchanger tube (1), intermediate medium pipe (2), the first front tube sheet (4), the second front tube sheet (5), the first back tube sheet (8), the second back tube sheet (9) and housing (6); Be provided with cavity between described the first front tube sheet (4) and described the second front tube sheet (5), be provided with cavity between described the first back tube sheet (8) and described the second back tube sheet (9), it is characterized in that: described heat exchanger tube (1) is nested in described intermediate medium pipe (2) inside, and the inner tubal wall of the outer tube wall of described heat exchanger tube (1) and described intermediate medium pipe (2) forms intermediate medium chamber (3); Described intermediate medium chamber (3) along intermediate medium pipe (2) respectively and the cavity between the cavity between described the first front tube sheet (4) and described the second front tube sheet (5), described the first back tube sheet (8) and described the second back tube sheet (9) mutually connect; On the cavity wall between described the first front tube sheet (4) and described the second front tube sheet (5) or the cavity wall between described the first back tube sheet (8) and described the second back tube sheet (9) be provided with expansion drum (7).
2. the two-tube double tube plate heat exchanger of a kind of anti-leak according to claim 1, it is characterized in that: described intermediate medium pipe (2) and described heat exchanger tube (1) are coaxial.
3. the two-tube double tube plate heat exchanger of a kind of anti-leak according to claim 1 and 2 is characterized in that: described heat exchanger tube (1) be connected intermediate medium pipe (2) as a whole respectively with described the second front tube sheet (5) be connected the first back tube sheet (8) expanded joint and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422899 CN202793101U (en) | 2012-08-24 | 2012-08-24 | Leakproof dual-tube and dual-tube sheet heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422899 CN202793101U (en) | 2012-08-24 | 2012-08-24 | Leakproof dual-tube and dual-tube sheet heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793101U true CN202793101U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220422899 Expired - Fee Related CN202793101U (en) | 2012-08-24 | 2012-08-24 | Leakproof dual-tube and dual-tube sheet heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107944092A (en) * | 2017-11-01 | 2018-04-20 | 常州大学 | A kind of band two-tube double tube plate heat exchanger tube to plate welding method of expansion joint |
| CN110461464A (en) * | 2017-03-31 | 2019-11-15 | 株式会社Ihi | Annealing device |
-
2012
- 2012-08-24 CN CN 201220422899 patent/CN202793101U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110461464A (en) * | 2017-03-31 | 2019-11-15 | 株式会社Ihi | Annealing device |
| CN110461464B (en) * | 2017-03-31 | 2021-12-24 | 株式会社Ihi | Heat treatment apparatus |
| US11378343B2 (en) | 2017-03-31 | 2022-07-05 | Ihi Corporation | Heat treatment device |
| CN107944092A (en) * | 2017-11-01 | 2018-04-20 | 常州大学 | A kind of band two-tube double tube plate heat exchanger tube to plate welding method of expansion joint |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210824 |