CN103791748B - A kind of safety type steam generator heat exchanger tube structure - Google Patents
A kind of safety type steam generator heat exchanger tube structure Download PDFInfo
- Publication number
- CN103791748B CN103791748B CN201410022642.1A CN201410022642A CN103791748B CN 103791748 B CN103791748 B CN 103791748B CN 201410022642 A CN201410022642 A CN 201410022642A CN 103791748 B CN103791748 B CN 103791748B
- Authority
- CN
- China
- Prior art keywords
- pipe
- mouth
- outer tube
- interior pipe
- steam generator
- 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
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to steam generator technical field, refer to a kind of safety type steam generator heat exchanger tube structure especially, comprise interior pipe, also comprise the outer tube be socketed on outside interior pipe, be located at the lower supporting plate of outer tube and interior pipe lower end, be located at the upper backup pad on outer tube and interior pipe top; The mouth of pipe of described outer tube bottom flushes with the mouth of pipe of interior pipe bottom, the mouth of pipe on described interior pipe top is higher than the mouth of pipe on outer tube top, the mouth of pipe the raised area extension of described interior pipe top is provided with cylindrical chimb, U-type groove is formed with the outer tube mouth of pipe on the downside of described cylindrical chimb, described upper backup pad is fixed in U-type groove by Welding Structure, the beneficial effect of technique scheme of the present invention is as follows: processing is simple, convenient enforcement, effectively can improve the security reliability of steam generator, can realize timely giving warning in advance, prevent the generation of serious accident.
Description
Technical field
The present invention relates to steam generator technical field, refer to a kind of safety type steam generator heat exchanger tube structure especially.
Background technology
In recent years, steam generator is one of key equipment of heat-shift, have an accident in Ye Shi thermal power plant, nuclear power plant one of maximum equipment simultaneously, and steam generator pipe, owing to being subject to impact and the HTHP effect of inside and outside different quality simultaneously, is weakest link in safety in production.Up to the present, nearly all steam generator heat exchange tube road is all single layer structure, usually there is stress corrosion and microseism wearing and tearing equivalent damage form in the heat exchange pipeline of this steam generation, and once there is pipeline perforate defect, if can not Timeliness coverage, the fracture just likely making pipeline unexpected, finally probably brings out serious loss of-coolant accident (LOCA), the serious safe and reliable operation that threaten thermal power plant and nuclear power plant.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of safety type steam generator heat exchanger tube structure, designed by double-decker and not only can find the defect of pipeline and the size of defect in time by pressure sensor and liquid trap, even if one deck pipeline failure wherein, also pipeline can not be made to break at short notice, thus the plugging measure of employing necessity that can be calm, thus the safe and reliable operation of the equipment of guarantee.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of safety type steam generator heat exchanger tube structure, comprise interior pipe, also comprise the outer tube be socketed on outside interior pipe, be located at the lower supporting plate of outer tube and interior pipe lower end, be located at the upper backup pad on outer tube and interior pipe top; The mouth of pipe of described outer tube bottom flushes with the mouth of pipe of interior pipe bottom, the mouth of pipe on described interior pipe top is higher than the mouth of pipe on outer tube top, the mouth of pipe the raised area extension of described interior pipe top is provided with cylindrical chimb, form U-type groove with the outer tube mouth of pipe on the downside of described cylindrical chimb, described upper backup pad is fixed in U-type groove by Welding Structure.
As preferably, described outer wall of inner tube radial direction is provided with semi-circular grooves, the notch place of described semi-circular grooves bottom is provided with liquid trap by bolt, described semi-circular grooves forms a seal cavity by Welding Structure and liquid trap, and described liquid trap is provided with the pressure sensor for detecting pressure in semi-circular grooves.
As preferably, upper backup pad and lower supporting plate are equipped with blossom type perforate.
The beneficial effect of technique scheme of the present invention is as follows: processing is simple, convenient enforcement, pipeline is divided into inner and outer tubes, have semi-circular grooves on inner pipe, even if so wherein there is fracture and lost efficacy in one deck pipeline, also whole steam generator is not affected, effectively can improve the security reliability of steam generator, interior pipe leaves semicircle linear type groove, once outer tube or interior pipe break or leak, first liquid be left in semi-circular grooves by small space, utilize, at duct bottom semicircle linear pattern tapping, pressure sensor and liquid trap are installed, can realize timely giving warning in advance, prevent the generation of serious accident.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the upper part structure sectional view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is pressure sensor and liquid trap connection diagram.
Reference numeral: 1, interior pipe; 2, semi-circular grooves; 3, bolt; 4, liquid trap; 5, pressure sensor; 6, Welding Structure; 7, outer tube; 8, upper backup pad; 9, lower supporting plate; 10, blossom type perforate; 11, cylindrical chimb.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to existing deficiency and a kind of safety type steam generator heat exchanger tube structure is provided, as depicted in figs. 1 and 2, comprise interior pipe 1, also comprise the outer tube 7 be socketed on outside interior pipe, be located at the lower supporting plate 9 of outer tube and interior pipe lower end, be located at the upper backup pad 8 on outer tube and interior pipe top; The mouth of pipe of described outer tube bottom flushes with the mouth of pipe of interior pipe bottom, the mouth of pipe on described interior pipe top is higher than the mouth of pipe on outer tube top, the mouth of pipe the raised area extension of described interior pipe top is provided with cylindrical chimb 11, form U-type groove with the outer tube mouth of pipe on the downside of described cylindrical chimb, described upper backup pad is fixed in U-type groove by Welding Structure 6.
As shown in Figure 4, described outer wall of inner tube radial direction is provided with semi-circular grooves 2, the notch place of described semi-circular grooves bottom is provided with liquid trap 4 by bolt 3, described semi-circular grooves forms a seal cavity by Welding Structure and liquid trap, and described liquid trap is provided with the pressure sensor 5 for detecting pressure in semi-circular grooves.
As shown in Figure 3, upper backup pad and lower supporting plate are equipped with blossom type perforate 10.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. a safety type steam generator heat exchanger tube structure, comprises interior pipe, it is characterized in that, also comprises the outer tube be socketed on outside interior pipe, is located at the lower supporting plate of outer tube and interior pipe lower end, is located at the upper backup pad on outer tube and interior pipe top, the mouth of pipe of described outer tube bottom flushes with the mouth of pipe of interior pipe bottom, the mouth of pipe on described interior pipe top is higher than the mouth of pipe on outer tube top, the mouth of pipe the raised area extension of described interior pipe top is provided with cylindrical chimb, U-type groove is formed with the outer tube mouth of pipe on the downside of described cylindrical chimb, described upper backup pad is fixed in U-type groove by Welding Structure, described outer wall of inner tube radial direction is provided with semi-circular grooves, the notch place of described semi-circular grooves bottom is provided with liquid trap by bolt, described semi-circular grooves forms a seal cavity by Welding Structure and liquid trap, described liquid trap is provided with the pressure sensor for detecting pressure in semi-circular grooves, upper backup pad and lower supporting plate are equipped with blossom type perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022642.1A CN103791748B (en) | 2014-01-11 | 2014-01-11 | A kind of safety type steam generator heat exchanger tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410022642.1A CN103791748B (en) | 2014-01-11 | 2014-01-11 | A kind of safety type steam generator heat exchanger tube structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103791748A CN103791748A (en) | 2014-05-14 |
| CN103791748B true CN103791748B (en) | 2015-09-09 |
Family
ID=50667645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410022642.1A Expired - Fee Related CN103791748B (en) | 2014-01-11 | 2014-01-11 | A kind of safety type steam generator heat exchanger tube structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103791748B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104239592B (en) * | 2014-05-26 | 2017-09-22 | 阳江核电有限公司 | Tube sheet drawing generating method when nuclear steam generator heat exchanger tube based on Excel is detected |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63199017A (en) * | 1987-02-10 | 1988-08-17 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacture of heat transfer pipe for steam generator |
| JPH01142392A (en) * | 1987-11-30 | 1989-06-05 | Babcock Hitachi Kk | Double tube type heat transfer tube |
| JPH0694383A (en) * | 1992-09-11 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Double tube type sea-water introduction tube for sea-water heat exchanger |
| JPH09119791A (en) * | 1995-10-25 | 1997-05-06 | Toshiba Corp | Double heat transfer tube for vapor generator and manufacture thereof |
| CN1378638A (en) * | 1999-07-22 | 2002-11-06 | 施皮罗研究公司 | Method for manufacturing double-walled heat exchanging tube with leak detection and said heat exchanging tube |
| CN201034425Y (en) * | 2007-04-19 | 2008-03-12 | 钟雪莲 | Double-walled cannula exchanger |
| CN201476634U (en) * | 2009-08-18 | 2010-05-19 | 成都瑞奇石油化工工程有限公司 | Double tube plate structure of shell-and-tube heat exchanger |
| CN201548109U (en) * | 2009-11-26 | 2010-08-11 | 基伊埃工业热交换器系统(芜湖)有限公司 | Heat exchanging tube for tube-fin radiator |
-
2014
- 2014-01-11 CN CN201410022642.1A patent/CN103791748B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63199017A (en) * | 1987-02-10 | 1988-08-17 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacture of heat transfer pipe for steam generator |
| JPH01142392A (en) * | 1987-11-30 | 1989-06-05 | Babcock Hitachi Kk | Double tube type heat transfer tube |
| JPH0694383A (en) * | 1992-09-11 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Double tube type sea-water introduction tube for sea-water heat exchanger |
| JPH09119791A (en) * | 1995-10-25 | 1997-05-06 | Toshiba Corp | Double heat transfer tube for vapor generator and manufacture thereof |
| CN1378638A (en) * | 1999-07-22 | 2002-11-06 | 施皮罗研究公司 | Method for manufacturing double-walled heat exchanging tube with leak detection and said heat exchanging tube |
| CN201034425Y (en) * | 2007-04-19 | 2008-03-12 | 钟雪莲 | Double-walled cannula exchanger |
| CN201476634U (en) * | 2009-08-18 | 2010-05-19 | 成都瑞奇石油化工工程有限公司 | Double tube plate structure of shell-and-tube heat exchanger |
| CN201548109U (en) * | 2009-11-26 | 2010-08-11 | 基伊埃工业热交换器系统(芜湖)有限公司 | Heat exchanging tube for tube-fin radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103791748A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050161B (en) | The method of auxiliary feedwater pipeline automatism isolation | |
| CN101935724A (en) | Protection device of water inlet/outlet pipe of cooling wall | |
| CN103791748B (en) | A kind of safety type steam generator heat exchanger tube structure | |
| CN104008858B (en) | Prevent the capsule-type installation for transformer of false oil level | |
| CN103644423B (en) | A kind of online hanger device of pipeline | |
| CN203929520U (en) | A kind of heat exchanger tube pass pressure testing device | |
| CN205686931U (en) | It is provided with the double Deck Oil Storage Tank of protecting against shock protection board | |
| CN205537992U (en) | Petroleum pipeline safety monitoring device | |
| CN205205073U (en) | Dry coke quenching stove water sealed tank | |
| CN201302504Y (en) | Annular liquid leakage detection device for cylindrical metal cabin | |
| CN209564760U (en) | Chemical plant facility or power plants equipment gas safety environment protection emission device | |
| CN207764659U (en) | A kind of device for the water shortage detection function in steaming plant | |
| CN202393289U (en) | Heat exchanger end part sealing structure | |
| CN203323952U (en) | Ceramic pressure secondary protection joint | |
| CN203999675U (en) | A kind of converter trunnion ring aqueous vapor medium moves towards arrangement | |
| CN201864735U (en) | Protecting device for water inlet-outlet pipe on cooling wall | |
| CN203850100U (en) | Capsule type transformer oil conservator capable of preventing false oil level | |
| CN204352567U (en) | A kind of reboiler with warning function | |
| CN107607269A (en) | A kind of oily salt heat exchanger tube head leakage or the detection means and detection method of booster | |
| CN201811404U (en) | Drainage device for indoor unit of air adjuster | |
| CN104112481A (en) | Releasing device capable of reducing accident source terms | |
| CN204388950U (en) | A kind of deaerator level measurement mechanism | |
| CN205193008U (en) | Novel serial test block is markd to cinder | |
| CN205785418U (en) | A kind of high-resolution double-colored level measurement device of band heat tracing circulation | |
| CN201665687U (en) | Blast furnace tuyere small sleeve state monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150909 Termination date: 20170111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |