CN207573811U - A kind of two-tube double tube plate heat exchanger - Google Patents
A kind of two-tube double tube plate heat exchanger Download PDFInfo
- Publication number
- CN207573811U CN207573811U CN201721523715.0U CN201721523715U CN207573811U CN 207573811 U CN207573811 U CN 207573811U CN 201721523715 U CN201721523715 U CN 201721523715U CN 207573811 U CN207573811 U CN 207573811U
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- China
- Prior art keywords
- tube
- heat exchanger
- cavity plate
- tube sheet
- sheet
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- 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.)
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Links
- 239000000498 cooling water Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a kind of two-tube double tube plate heat exchanger, belongs to generator heat-radiation technical field.It includes front header, front tube sheet, preceding cavity plate, heat exchanger tube, rear cavity plate, back tube sheet, rear header and curb girder, heat exchanger tube is provided between curb girder, front header and rear header are respectively welded on front tube sheet and back tube sheet, front tube sheet and back tube sheet are connect respectively with preceding cavity plate and rear cavity plate, a cavity is respectively formed between front tube sheet and preceding cavity plate and between back tube sheet and rear cavity plate, cavity is connected by excretory duct outside heat exchanger；Heat exchanger tube is concentric double pipe structure, is divided into inner and outer tubes, inner tube is placed in outer tube；Outer tube is connect with preceding cavity plate and rear cavity plate using expanded joint form, and inner tube is connect with front tube sheet and back tube sheet using expanded joint form；There are gap between inner and outer tubes, and gap is connected with cavity.The utility model can prevent from causing in pipe in cooling water leakage to generator due to heat exchange tracheal rupture.
Description
Technical field
The utility model belongs to generator heat-radiation technical field, especially a kind of two-tube double tube plate heat exchanger.
Background technology
Heat exchanger is widely used in power industry.And currently used heat exchanger is all installed at the top of generator, manages interior be situated between
Matter is mostly cooling water, and heat exchanger tube is single tube, and when exchanging heat, tracheal rupture postcooling water can be directly leaked in generator, cause generator
Electric elements inside short circuit, so as to cause the damage of generator.
Utility model content
It is single tube to solve the heat exchanger tube in heat exchanger of the existing technology, once heat exchanger tube rupture can cause cold in pipe
But water leaks into the defects of generator, and the utility model provides a kind of two-tube double tube plate heat exchanger.
To achieve the above object, the utility model uses following technical proposals：
A kind of two-tube double tube plate heat exchanger, it include front header, front tube sheet, preceding cavity plate, heat exchanger tube, rear cavity plate, back tube sheet,
Rear header and curb girder are provided with heat exchanger tube between curb girder, and front header and rear header are respectively welded on front tube sheet and back tube sheet, preceding
Tube sheet and back tube sheet are connect respectively with preceding cavity plate and rear cavity plate, between front tube sheet and preceding cavity plate and between back tube sheet and rear cavity plate
A cavity is respectively formed, cavity is connected by excretory duct outside heat exchanger；
Heat exchanger tube is concentric double pipe structure, is divided into inner and outer tubes, inner tube is placed in outer tube；
Outer tube is connect with preceding cavity plate and rear cavity plate using expanded joint form, and inner tube uses expanded joint form with front tube sheet and back tube sheet
Connection；
There are gap between inner and outer tubes, and gap is connected with cavity.
It is in order to prevent when the interior tracheal rupture after using double pipe structure, cooling water leakage arrives in pipe using above-mentioned technical proposal
In generator, prevent motor due to water inlet and short-circuit.It, can also there are one between inner tube and outer tube when heat exchanger tube and after fin auxetic
A little gaps, and gap is connected with cavity, when interior tracheal rupture, cooling water can be flowed by gap in cavity in pipe.
Further, front tube sheet and back tube sheet are bolted, and junction passes through with preceding cavity plate and rear cavity plate respectively
Gasket seal.
Further, the outer tube of heat exchanger tube uses internal tooth pipe, and inner tube uses light pipe.
Advantageous effect：
The utility model can prevent from causing in pipe in cooling water leakage to generator due to heat exchange tracheal rupture.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the enlarged drawing at A in Fig. 1；
Fig. 4 is the enlarged drawing at B in Fig. 1；
Fig. 5 be Fig. 4 in A-A to sectional view.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figs. 1-5, a kind of two-tube double tube plate heat exchanger, as shown in Figs. 1-2, it includes front header 1, front tube sheet 2, preceding
Cavity plate 3, heat exchanger tube 5, rear cavity plate 6, back tube sheet 7, rear header 8 and curb girder 9 are provided with heat exchanger tube 5,1 He of front header between curb girder 9
Rear header 8 is respectively welded on front tube sheet 2 and back tube sheet 7, as shown in Figure 3-4, front tube sheet 2 and back tube sheet 7 respectively with preceding cavity plate 3
It is bolted with rear cavity plate 6, and junction is sealed by gasket 14, between front tube sheet 2 and preceding cavity plate 3 and back tube sheet 7
A cavity 12 is respectively formed between rear cavity plate 6, cavity 12 is connected by excretory duct 4 outside heat exchanger；
As shown in figure 5, heat exchanger tube 5 is concentric double pipe structure, it is divided into inner tube 10 and outer tube 11, inner tube 10 is placed in outer tube 11
Portion, outer tube 11 use internal tooth pipe, and inner tube 10 uses light pipe；
Outer tube 11 is connect with preceding cavity plate 3 and rear cavity plate 6 using expanded joint form, and inner tube 10 is used with front tube sheet 2 and back tube sheet 7
Expanded joint form connects；
As illustrated in figures 4-5, there are gap 13 between inner tube 10 and outer tube 11, and gap 13 is connected with cavity 12.
A kind of two-tube double tube plate heat exchanger of the utility model, when heat exchanger tube 5 and after fin auxetic, inner tube 10 and outer tube 11 it
Between can also be there are some gaps 13, and gap 13 is connected with cavity 12, and after interior tracheal rupture, cooling water can be by outer in pipe
Gap 13 between pipe 11 and inner tube 10 is flowed into cavity 12, prevents from cooling down to leak into pipe leading to short circuit in generator, then
Heat exchanger is discharged by excretory duct 4 again, is discharged to the position specified.The utility model is to work as inner tube in order to prevent using double pipe structure
After 10 ruptures, in pipe in cooling water leakage to generator, prevent motor due to water inlet and short-circuit.
Limitation to scope of protection of the utility model, those skilled in the art should understand that, in the skill of the utility model
On the basis of art scheme, the various modifications or variations that can be made by those skilled in the art with little creative work still exists
Within the scope of protection of the utility model.
Claims (3)
1. a kind of two-tube double tube plate heat exchanger, it includes front header (1), front tube sheet (2), preceding cavity plate (3), heat exchanger tube (5), back cavity
Plate (6), back tube sheet (7), rear header (8) and curb girder (9) are provided with heat exchanger tube (5), front header (1) and rear pipe between curb girder (9)
Case (8) is respectively welded on front tube sheet (2) and back tube sheet (7), front tube sheet (2) and back tube sheet (7) respectively with preceding cavity plate (3) and after
Cavity plate (6) connects, it is characterised in that：Between the front tube sheet (2) and preceding cavity plate (3) and back tube sheet (7) and rear cavity plate (6) it
Between be respectively formed a cavity (12), cavity (12) is connected by excretory duct (4) outside heat exchanger；
The heat exchanger tube (5) is concentric double pipe structure, is divided into inner tube (10) and outer tube (11), and inner tube (10) is placed in outer tube (11)
Portion；
The outer tube (11) is connect with preceding cavity plate (3) and rear cavity plate (6) using expanded joint form, inner tube (10) and front tube sheet (2) and
Back tube sheet (7) is connected using expanded joint form；
There are gap (13) between said inner tube (10) and outer tube (11), and gap (13) are connected with cavity (12).
2. two-tube double tube plate heat exchanger according to claim 1, it is characterised in that：The front tube sheet (2) and back tube sheet (7)
It is bolted respectively with preceding cavity plate (3) and rear cavity plate (6), and junction is sealed by gasket (14).
3. two-tube double tube plate heat exchanger according to claim 1, it is characterised in that：The outer tube (11) of the heat exchanger tube (5)
Using internal tooth pipe, inner tube (10) is using light pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523715.0U CN207573811U (en) | 2017-11-15 | 2017-11-15 | A kind of two-tube double tube plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523715.0U CN207573811U (en) | 2017-11-15 | 2017-11-15 | A kind of two-tube double tube plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573811U true CN207573811U (en) | 2018-07-03 |
Family
ID=62694403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721523715.0U Active CN207573811U (en) | 2017-11-15 | 2017-11-15 | A kind of two-tube double tube plate heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207573811U (en) |
-
2017
- 2017-11-15 CN CN201721523715.0U patent/CN207573811U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 913 Guoshun Road, Fengpu, Nanqiao Town, Fengxian District, Shanghai, 20149 Patentee after: Shuangmu Energy Equipment Technology (Shanghai) Co.,Ltd. Country or region after: China Patentee after: SHANGHAI SHUANGMU MACHINERY EQUIPMENT Co.,Ltd. Address before: No. 913 Guoshun Road, Fengpu, Nanqiao Town, Fengxian District, Shanghai, 20149 Patentee before: SHANGHAI SHUANGMU RADIATOR MANUFACTURE Co.,Ltd. Country or region before: China Patentee before: SHANGHAI SHUANGMU MACHINERY EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20240426 Address after: 201499 North Workshop, Building 4, No. 1658 Baziqiao Road, Fengxian District, Shanghai Patentee after: Shuangmu Energy Equipment Technology (Shanghai) Co.,Ltd. Country or region after: China Address before: No. 913 Guoshun Road, Fengpu, Nanqiao Town, Fengxian District, Shanghai, 20149 Patentee before: Shuangmu Energy Equipment Technology (Shanghai) Co.,Ltd. Country or region before: China Patentee before: SHANGHAI SHUANGMU MACHINERY EQUIPMENT Co.,Ltd. |