CN203323611U - Two-dimensional flow pipeline system of plate heat exchanger of nuclear power plant - Google Patents
Two-dimensional flow pipeline system of plate heat exchanger of nuclear power plant Download PDFInfo
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- CN203323611U CN203323611U CN2013201104653U CN201320110465U CN203323611U CN 203323611 U CN203323611 U CN 203323611U CN 2013201104653 U CN2013201104653 U CN 2013201104653U CN 201320110465 U CN201320110465 U CN 201320110465U CN 203323611 U CN203323611 U CN 203323611U
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- heat exchanger
- pipe
- water inlet
- inlet pipe
- outlet pipe
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Abstract
The utility model discloses a two-dimensional flow pipeline system of a plate heat exchanger of a nuclear power plant. One side of the plate heat exchanger is an SEC side, and the other side of the plate heat exchanger is an RRI side; a forward-direction water inlet pipe is arranged at an inlet of the SEC side of the plate heat exchanger, and a forward-direction water outlet pipe is arranged at an outlet of the SEC side of the plate heat exchanger; a reverse-direction water inlet pipe and a reverse-direction water outlet pipe are further arranged on the pipeline between the forward-direction water inlet pipe and the forward-direction water outlet pipe. According to the two-dimensional flow pipeline system, since the reverse-direction water inlet pipe and the reverse-direction water outlet pipe are additionally arranged, two-dimensional flow of sea water in the plate heat exchanger is realized. In the operation process of the system, since on-off of valves on the pipelines are controlled, the working condition that seawater of the SEC side of the plate heat exchanger performs alternate operation in the forward direction and the reverse direction regularly is realized, and especially in the high sediment sea area, blockage of a screen board by sediment can be effectively prevented.
Description
Technical field
The utility model relates to nuclear power station essential service water pipe-line system field, is specifically related to a kind of bidirectional flow pipe-line system of nuclear power station plate type heat exchanger.
Background technology
In nuclear power station, the major function of essential service water system (SEC) is that the heat of primary component cooling water system (RRI) transmission is passed in seawater, and the SEC/RRI plate type heat exchanger is that component cooling water system is passed to the heat of each system of nuclear island and equipment generation the key equipment of seawater in essential service water system (SEC).SEC/RRI plate type heat exchanger one side is essential service water overcurrent side, and opposite side is component cooling water overcurrent side.The thermic load that component cooling water system (RRI) brings from nuclear island is taken away it by the seawater of essential service water system (SEC) by the SEC/RRI plate type heat exchanger.In the seawater quality condition, preferably in factory site, the SEC side of SEC/RRI plate type heat exchanger arranges an inlet pipeline and an outlet pipeline, and as shown in Figure 1, seawater keeps forward flow by this road water inlet pipe and water outlet pipe in plate type heat exchanger.The limitation of above-mentioned arrangement is: the larger zone of sediment charge in seawater, and Qinshan area for example, in plate type heat exchanger, flow velocity is lower, and seawater one-way flow all the time in plate type heat exchanger, easily cause the situation that the plate type heat exchanger web plate stops up to occur.
The utility model content
For the defect existed in prior art, the purpose of this utility model is to provide a kind of bidirectional flow pipe-line system of nuclear power station plate type heat exchanger, avoids the phenomenon that occurs that the plate type heat exchanger web plate stops up.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of bidirectional flow pipe-line system of nuclear power station plate type heat exchanger, described plate type heat exchanger one side is the essential service water system side, opposite side is the component cooling water system side, the place, essential service water system side entrance of plate type heat exchanger is provided with the forward water inlet pipe, exit is provided with the forward outlet pipe, also is provided with reverse water inlet pipe and reverse outlet pipe between the pipeline of forward water inlet pipe and forward outlet pipe.
Further, the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as above, be respectively equipped with corresponding valve on the pipeline of described forward water inlet pipe, forward outlet pipe, reverse water inlet pipe and reverse outlet pipe.
Further again, the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as above, the valve of forward water inlet pipe and forward outlet pipe is co-located on the state of opening or closing, and simultaneously, oppositely the valve of water inlet pipe and reverse outlet pipe is co-located on and closes or open mode.
Further, the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as above, oppositely an end mouth of pipe of water inlet pipe is positioned at the outside of forward water inlet pipe valve, and the other end mouth of pipe is positioned at the inboard of forward outlet pipe valve; Oppositely an end mouth of pipe of outlet pipe is positioned at the inboard of forward water inlet pipe valve, and the other end mouth of pipe is positioned at the outside of forward outlet pipe valve.
The beneficial effects of the utility model are: the bidirectional flow pipe-line system of plate type heat exchanger described in the utility model, essential service water system side seawater by plate type heat exchanger positive and negative two to alternate run, avoid the phenomenon that occurs that in the nuclear power station of high silt marine site the plate type heat exchanger web plate stops up, improved the applicability of system.
The accompanying drawing explanation
The layout schematic diagram that Fig. 1 is traditional unidirectional overcurrent pipe-line system;
The structural representation of the bidirectional flow pipe-line system that Fig. 2 is a kind of nuclear power station plate type heat exchanger of the utility model.
The specific embodiment
Below in conjunction with Figure of description and the specific embodiment, the utility model is described in further detail.
Fig. 1 shows the layout schematic diagram of the unidirectional overcurrent pipe-line system of existing traditional plate type heat exchanger, the place, SEC side entrance of the plate type heat exchanger 1 of this system is provided with a forward water inlet pipe 2, exit is provided with a forward outlet pipe 3, seawater keeps forward flow by forward water inlet pipe 2 and forward outlet pipe 3 in plate type heat exchanger, but this mode easily causes the obstruction of plate type heat exchanger web plate in high silt zone.
Fig. 2 shows the bidirectional flow pipe-line system of a kind of improved nuclear power station plate type heat exchanger of the utility model, described plate type heat exchanger one side of this system is essential service water overcurrent side (SEC side), opposite side is component cooling water overcurrent side (RRI side), the place, essential service water overcurrent side entrance of plate type heat exchanger 1 is provided with forward water inlet pipe 2, exit is provided with forward outlet pipe 3, wherein, also be provided with reverse water inlet pipe 6 and reverse outlet pipe 7 between the pipeline of forward water inlet pipe 2 and forward outlet pipe 2, forward water inlet pipe 2, forward outlet pipe 3, oppositely on the pipeline of water inlet pipe 6 and reverse outlet pipe 7, be respectively equipped with corresponding valve, in Fig. 2, forward water inlet pipe valve 4, forward outlet pipe valve 5, oppositely water inlet pipe valve 8 and oppositely outlet pipe valve 9.System in the course of the work, the valve of forward water inlet pipe 2 and forward outlet pipe 3 is co-located on the state of opening or closing, simultaneously, oppositely the valve of water inlet pipe 6 and reverse outlet pipe 7 is simultaneously in closing or open mode, while opening forward water inlet pipe valve 4 and forward outlet pipe valve 5, close reverse water inlet pipe valve 8 and reverse outlet pipe valve 9 simultaneously; While opening reverse water inlet pipe valve 8 and reverse outlet pipe valve 9, close forward water inlet pipe valve 4 and forward outlet pipe valve 5 simultaneously.Wherein, oppositely an end mouth of pipe of water inlet pipe 6 is positioned at the outside of forward water inlet pipe valve 4, and the other end mouth of pipe is positioned at the inboard of forward outlet pipe valve 5; Oppositely an end mouth of pipe of outlet pipe 7 is positioned at the inboard of forward water inlet pipe valve 4, and the other end mouth of pipe is positioned at the outside of forward outlet pipe valve 5.
The utility model, by the essential service water overcurrent side forward inlet and outlet pipe lines at plate type heat exchanger 1, two isometrical cross over pipes being set as reverse inlet and outlet pipe, has been realized the bidirectional flow pipe-line system, and the course of work of this system is roughly as follows:
Seawater is when plate type heat exchanger 1 interior forward flow, open forward water inlet pipe valve 4 and forward outlet pipe valve 5, close reverse water inlet pipe valve 8 and reverse outlet pipe valve 9, seawater keeps forward flow by forward water inlet pipe 2 and forward outlet pipe 3 these road water inlet pipe and water outlet pipes in plate simultaneously; When seawater changes interior reverse flow at plate, open reverse water inlet pipe valve 8 and reverse outlet pipe valve 9, close forward water inlet pipe valve 4 and forward outlet pipe valve 5, seawater keeps reverse flow by reverse water inlet pipe 6 and reverse outlet pipe 7 these road water inlet pipe and water outlet pipes in plate simultaneously.Plate type heat exchanger maritime interior waters flow direction regularly switches by above setting, thereby avoids the plate type heat exchanger web plate to stop up on-the-spot the appearance.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (4)
1. the bidirectional flow pipe-line system of a nuclear power station plate type heat exchanger, described plate type heat exchanger (1) one side is the essential service water system side, opposite side is the component cooling water system side, the place, essential service water system side entrance of plate type heat exchanger (1) is provided with forward water inlet pipe (2), exit is provided with forward outlet pipe (3), it is characterized in that: also be provided with reverse water inlet pipe (6) and reverse outlet pipe (7) between the pipeline of forward water inlet pipe (2) and forward outlet pipe (3).
2. the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as claimed in claim 1, is characterized in that: on the pipeline of described forward water inlet pipe (2), forward outlet pipe (3), reverse water inlet pipe (6) and reverse outlet pipe (7), be respectively equipped with corresponding valve.
3. the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as claimed in claim 2, it is characterized in that: the valve of forward water inlet pipe (2) and forward outlet pipe (3) is co-located on the state of opening or closing, simultaneously, the valve of reverse water inlet pipe (6) and reverse outlet pipe (7) is co-located on and closes or open mode.
4. the bidirectional flow pipe-line system of a kind of nuclear power station plate type heat exchanger as claimed in claim 3, it is characterized in that: oppositely an end mouth of pipe of water inlet pipe (6) is positioned at the outside of forward water inlet pipe (2) valve, and the other end mouth of pipe is positioned at the inboard of forward outlet pipe (3) valve; Oppositely an end mouth of pipe of outlet pipe (7) is positioned at the inboard of forward water inlet pipe (2) valve, and the other end mouth of pipe is positioned at the outside of forward outlet pipe (3) valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201104653U CN203323611U (en) | 2013-03-12 | 2013-03-12 | Two-dimensional flow pipeline system of plate heat exchanger of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201104653U CN203323611U (en) | 2013-03-12 | 2013-03-12 | Two-dimensional flow pipeline system of plate heat exchanger of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323611U true CN203323611U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201104653U Expired - Lifetime CN203323611U (en) | 2013-03-12 | 2013-03-12 | Two-dimensional flow pipeline system of plate heat exchanger of nuclear power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN203323611U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464844A (en) * | 2014-12-08 | 2015-03-25 | 中广核工程有限公司 | Nuclear power plant cold chain system and cold water effluent temperature regulation method thereof |
| CN106930790A (en) * | 2017-01-04 | 2017-07-07 | 国网辽宁省电力有限公司本溪供电公司 | Based on seawater as cooling water thermal power plant's heat recovery system |
| CN107235587A (en) * | 2017-01-04 | 2017-10-10 | 国网辽宁省电力有限公司本溪供电公司 | The filtration system for exchanging heat and purifying suitable for power plant |
-
2013
- 2013-03-12 CN CN2013201104653U patent/CN203323611U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464844A (en) * | 2014-12-08 | 2015-03-25 | 中广核工程有限公司 | Nuclear power plant cold chain system and cold water effluent temperature regulation method thereof |
| CN106930790A (en) * | 2017-01-04 | 2017-07-07 | 国网辽宁省电力有限公司本溪供电公司 | Based on seawater as cooling water thermal power plant's heat recovery system |
| CN107235587A (en) * | 2017-01-04 | 2017-10-10 | 国网辽宁省电力有限公司本溪供电公司 | The filtration system for exchanging heat and purifying suitable for power plant |
| CN106930790B (en) * | 2017-01-04 | 2019-01-15 | 国网辽宁省电力有限公司本溪供电公司 | Thermal power plant's heat recovery system based on seawater as cooling water |
| CN107235587B (en) * | 2017-01-04 | 2020-05-19 | 国网辽宁省电力有限公司本溪供电公司 | Filtration system suitable for heat transfer and purification of power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |