CN103868375A - Coiled pipe type mechanical seal water heat exchanger of residual heat removal pump - Google Patents
Coiled pipe type mechanical seal water heat exchanger of residual heat removal pump Download PDFInfo
- Publication number
- CN103868375A CN103868375A CN201210536876.9A CN201210536876A CN103868375A CN 103868375 A CN103868375 A CN 103868375A CN 201210536876 A CN201210536876 A CN 201210536876A CN 103868375 A CN103868375 A CN 103868375A
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- mechanical seal
- seal water
- flange
- heat exchanger
- water inlet
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Abstract
The invention relates to the technical field of pressurized water reactor heat exchangers and discloses a coiled pipe type mechanical seal water heat exchanger of a residual heat removal pump. The lower end of a barrel body in the heat exchanger is sealed through an elliptic end enclosure, a barrel body flange is fixed at the upper end of the barrel body, and a flange cover plate is fixed at the upper end of the barrel body flange through a plurality of bolts. A mechanical seal water inlet pipe passes through the flange cover plate and is connected with the spiral end of a spiral coiled pipe-shaped heat exchange pipe, a heat exchange pipe coil winds a baffle sleeve barrel in the barrel body, and a spiral pipe at the lower end of the heat exchange pipe passes through the baffle sleeve barrel and is firmly connected with a mechanical seal water outlet pipe which passes through the flange cover plate. A cooling water inlet elbow passes through the flange cover plate above the baffle sleeve barrel and is fixed on the same, and a cooling water outlet elbow passes through the flange cover plate above an annular region between the baffle sleeve barrel and the barrel body and is fixed on the same. The coiled pipe type mechanical seal water heat exchanger is compact in structure, high in heat exchange efficiency, and capable of effectively cooling the mechanical seal water of the pump.
Description
Technical field
The invention belongs to presurized water reactor heat exchanger technical field, be specifically related to a kind of coiled residual heat removal pump mechanical seal water heat exchanger.
Background technology
While normally stoppage in transit in power station, discharge the sensible heat in residual heat of nuclear core, a loop and the heat that a circuit system main pump produces by residual heat removal system, reactor is entered and maintain cold shut state.Driving the residual heat removal pump of residual heat removal system circular flow is horizontal, centrifugal pump of single stage type, and the mechanical seal of being lubricated by reactor coolant is housed, and cooling agent obtains the cooling of component cooling water in mechanical seal water heat exchanger.
Can find out, the normal operational relation of residual heat removal pump to nuclear power plant normal/safety when breakdown, and this pump mechanical seal water heat exchanger used is one of auxiliary equipment ensureing its normal operation, has certain importance.
Summary of the invention
The object of the present invention is to provide a kind of coiled residual heat removal pump mechanical seal water heat exchanger, can solve nuclear power plant normal/discharge of waste heat when breakdown.
Technical scheme of the present invention is as follows: a kind of coiled residual heat removal pump mechanical seal water heat exchanger, comprise that cylindrical shell, cooling water inlet bend pipe, coolant outlet bend pipe, heat exchanger tube, mechanical seal water inlet are taken over and mechanical seal water out is taken over, wherein, the cylindrical shell lower end of cylindrical structure seals by ellipse head, cylindrical shell upper end is fixed with shell flange, and flange plate is bolted to the upper end of shell flange by several; Mechanical seal water inlet is taken over through flange plate, and be connected with the spiral end of the heat exchanger tube of helical disk tubulose, heat exchanger tube coiling is built up in the baffling sleeve in cylindrical shell, and the spiral pipe end of heat exchanger tube lower end passes baffling sleeve, and take over and be fixedly connected with the mechanical seal water out through flange plate; Cooling water inlet bend pipe passes and is fixed on the flange plate that is positioned at baffling sleeve upper area, and coolant outlet bend pipe through and be fixed on the flange plate above annular region baffling sleeve and cylindrical shell.
Described baffling sleeve is cylindrical structure, and between the circular cross-sectional area of baffling sleeve and baffling sleeve and cylindrical shell, the area of ring section is suitable.
Described ellipse head center drilling is also provided with drain nozzle; Between described baffling sleeve and cylindrical shell, on the flange plate of annular region top, be also provided with vent connection.
Between described flange plate and shell flange, be provided with gasket seal, can realize between flange plate and shell flange and sealing.
Described mechanical seal water inlet is taken over upper end mechanical seal water inlet flange is installed; Described mechanical seal water out flange upper end is provided with mechanical seal water out and takes over; On described cooling water inlet bend pipe, cooling water inlet flange is installed; On described coolant outlet bend pipe, coolant outlet flange is installed.
Remarkable result of the present invention is: coiled residual heat removal pump mechanical seal water heat exchanger of the present invention, its compact conformation, heat exchange efficiency are high, mechanical seal water that can this pump of effective cooling.
Brief description of the drawings
Fig. 1 is a kind of coiled residual heat removal pump mechanical seal water heat exchanger structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
In figure: 1, cooling water inlet flange; 2, cooling water inlet bend pipe; 3, mechanical seal water inlet flange; 4, coolant outlet flange; 5, coolant outlet bend pipe; 6, mechanical seal water out flange; 7, vent connection; 8, mechanical seal water out is taken over; 9, flange plate; 10, shell flange; 11, cylindrical shell; 12, heat exchanger tube; 13, baffling sleeve; 14, ellipse head; 15, drain nozzle; 16, bolt; 17, gasket seal; 18, mechanical seal water inlet is taken over.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, a kind of coiled residual heat removal pump mechanical seal water heat exchanger, comprise cylindrical shell 11, cooling water inlet bend pipe 2, coolant outlet bend pipe 5, heat exchanger tube 12, the adapter 18 of mechanical seal water inlet and mechanical seal water out adapter 8, wherein, cylindrical shell 11 lower ends of cylindrical structure seal by ellipse head 14, and at ellipse head 14 center drillings and drain nozzle 15 is installed, cylindrical shell 11 upper ends are fixed with shell flange 10, and flange plate 9 is fixed on the upper end of shell flange 10 by several bolts 16, and realize sealing between flange plate 9 and shell flange 10 by the gasket seal 17 between flange plate 9 and shell flange 10, upper end is provided with the mechanical seal water inlet of mechanical seal water inlet flange 3 and takes over 18 through flange plate 9, and be connected with the spiral end of the heat exchanger tube 12 of helical disk tubulose, heat exchanger tube 12 coilings are built up in the baffling sleeve 13 in cylindrical shell 11, and the spiral pipe end of heat exchanger tube 12 lower ends is through baffling sleeve 13, and be fixedly connected with the mechanical seal water out adapter 8 through flange plate 9, and the upper end in mechanical seal water out adapter 8 is provided with mechanical seal water out flange 6, wherein, baffling sleeve 13 is cylindrical structure, and the area of baffling sleeve 13 is suitable with the outer field annulus area of baffling sleeve 13, the cooling water inlet bend pipe 2 that cooling water inlet flange 1 is installed passes and is fixed on the flange plate 9 that is positioned at baffling sleeve 13 upper areas, and the coolant outlet bend pipe 5 that coolant outlet flange 4 is installed through and be fixed on the flange plate 9 above annular region baffling sleeve 13 and cylindrical shell 11, and flange plate 9 above this annular region is also provided with vent connection 7.
In a kind of coiled residual heat removal pump mechanical seal water heat exchanger of the present invention, the mechanical seal water that pressure is higher is taken over 18 by mechanical seal water inlet and is entered after the heat exchanger tube 12 of helical disk tubulose, taking over 8 by mechanical seal water out again discharges, and the lower cooling water of pressure enters after baffling sleeve 13 by cooling water inlet bend pipe 5, carry out after heat exchange with heat exchanger tube 12, after baffling sleeve 13 and cylindrical shell 11 annular spaces, discharge from coolant outlet bend pipe 5.
Claims (5)
1. a coiled residual heat removal pump mechanical seal water heat exchanger, comprise that cylindrical shell (11), cooling water inlet bend pipe (2), coolant outlet bend pipe (5), heat exchanger tube (12), mechanical seal water inlet are taken over (18) and mechanical seal water out is taken over (8), wherein, cylindrical shell (11) lower end of cylindrical structure is by ellipse head (14) sealing, it is characterized in that: cylindrical shell (11) upper end is fixed with shell flange (10), flange plate (9) is fixed on the upper end of shell flange (10) by several bolts (16); Mechanical seal water inlet is taken over (18) through flange plate (9), and be connected with the spiral end of the heat exchanger tube (12) of helical disk tubulose, heat exchanger tube (12) coiling is built up in the baffling sleeve (13) in cylindrical shell (11), and the spiral pipe end of heat exchanger tube (12) lower end passes baffling sleeve (13), and be fixedly connected with the mechanical seal water out adapter (8) through flange plate (9); Cooling water inlet bend pipe (2) passes and is fixed on that to be positioned at the flange plate (9) of baffling sleeve (13) upper area upper, and coolant outlet bend pipe (5) through and be fixed on and be positioned at baffling sleeve (13) and cylindrical shell (11) on the flange plate (9) above annular region.
2. a kind of coiled residual heat removal pump mechanical seal water heat exchanger according to claim 1, it is characterized in that: described baffling sleeve (13) is cylindrical structure, and between the circular cross-sectional area of baffling sleeve (13) and baffling sleeve (13) and cylindrical shell (11), the area of ring section is suitable.
3. a kind of coiled residual heat removal pump mechanical seal water heat exchanger according to claim 1, is characterized in that: described ellipse head (14) center drilling is also provided with drain nozzle (15); Between described baffling sleeve (13) and cylindrical shell (11), on the flange plate (9) of annular region top, be also provided with vent connection (7).
4. a kind of coiled residual heat removal pump mechanical seal water heat exchanger according to claim 1, it is characterized in that: between described flange plate (9) and shell flange (10), be provided with gasket seal (17), can realize sealing between flange plate (9) and shell flange (10).
5. a kind of coiled residual heat removal pump mechanical seal water heat exchanger according to claim 1, is characterized in that: described mechanical seal water inlet is taken over (18) upper end mechanical seal water inlet flange (3) is installed; Described mechanical seal water out flange (6) upper end is provided with mechanical seal water out and takes over (8); On described cooling water inlet bend pipe (2), cooling water inlet flange (1) is installed; The upper coolant outlet flange (4) of installing of described coolant outlet bend pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210536876.9A CN103868375A (en) | 2012-12-13 | 2012-12-13 | Coiled pipe type mechanical seal water heat exchanger of residual heat removal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210536876.9A CN103868375A (en) | 2012-12-13 | 2012-12-13 | Coiled pipe type mechanical seal water heat exchanger of residual heat removal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103868375A true CN103868375A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210536876.9A Pending CN103868375A (en) | 2012-12-13 | 2012-12-13 | Coiled pipe type mechanical seal water heat exchanger of residual heat removal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103868375A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382611A (en) * | 2016-11-14 | 2017-02-08 | 清华大学天津高端装备研究院 | Coil tube type vapor generator capable of achieving grouped stable operation |
| CN111706404A (en) * | 2020-05-12 | 2020-09-25 | 中国核动力研究设计院 | Supercritical carbon dioxide dry gas sealing device with spiral cooling structure and method |
Citations (7)
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|---|---|---|---|---|
| JP2002195767A (en) * | 2000-12-21 | 2002-07-10 | Komatsu Ltd | Heat exchanger |
| CN2872275Y (en) * | 2005-12-07 | 2007-02-21 | 王炳印 | Shell-and-tube heat exchanger |
| US20080149317A1 (en) * | 2005-04-07 | 2008-06-26 | Benjamin Paul Baker | Heat exchanger |
| CN102519277A (en) * | 2011-12-28 | 2012-06-27 | 英特换热设备(浙江)有限公司 | Barrel type heat exchanger |
| CN102661669A (en) * | 2012-04-27 | 2012-09-12 | 大连华阳光大密封有限公司 | Coil pipe heat exchanger capable of being used for two pieces of equipment to simultaneously exchange heat |
| CN102759287A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Double-effect cooler |
| CN203069013U (en) * | 2012-12-13 | 2013-07-17 | 中国核动力研究设计院 | Coiled pipe type heat exchanger for residual heat removal pump mechanical seal water |
-
2012
- 2012-12-13 CN CN201210536876.9A patent/CN103868375A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195767A (en) * | 2000-12-21 | 2002-07-10 | Komatsu Ltd | Heat exchanger |
| US20080149317A1 (en) * | 2005-04-07 | 2008-06-26 | Benjamin Paul Baker | Heat exchanger |
| CN2872275Y (en) * | 2005-12-07 | 2007-02-21 | 王炳印 | Shell-and-tube heat exchanger |
| CN102519277A (en) * | 2011-12-28 | 2012-06-27 | 英特换热设备(浙江)有限公司 | Barrel type heat exchanger |
| CN102759287A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Double-effect cooler |
| CN102661669A (en) * | 2012-04-27 | 2012-09-12 | 大连华阳光大密封有限公司 | Coil pipe heat exchanger capable of being used for two pieces of equipment to simultaneously exchange heat |
| CN203069013U (en) * | 2012-12-13 | 2013-07-17 | 中国核动力研究设计院 | Coiled pipe type heat exchanger for residual heat removal pump mechanical seal water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382611A (en) * | 2016-11-14 | 2017-02-08 | 清华大学天津高端装备研究院 | Coil tube type vapor generator capable of achieving grouped stable operation |
| CN111706404A (en) * | 2020-05-12 | 2020-09-25 | 中国核动力研究设计院 | Supercritical carbon dioxide dry gas sealing device with spiral cooling structure and method |
| CN111706404B (en) * | 2020-05-12 | 2022-08-30 | 中国核动力研究设计院 | Supercritical carbon dioxide dry gas sealing device with spiral cooling structure and method |
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Application publication date: 20140618 |