CN206271432U - Nuclear power plant's secondary circuit rinses cooling and drainage arrangement - Google Patents
Nuclear power plant's secondary circuit rinses cooling and drainage arrangement Download PDFInfo
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- CN206271432U CN206271432U CN201621349231.4U CN201621349231U CN206271432U CN 206271432 U CN206271432 U CN 206271432U CN 201621349231 U CN201621349231 U CN 201621349231U CN 206271432 U CN206271432 U CN 206271432U
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- Prior art keywords
- secondary circuit
- cooling
- power plant
- nuclear power
- drainage arrangement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
Cooling and drainage arrangement are rinsed the utility model discloses a kind of nuclear power plant's secondary circuit, its several condensate pump motor and bearing cooler for including the cooling water pipeline being connected with desalination water distribution system and the connection of cooling water pipe line output terminal, and the flowing line of connection condensate pump motor and bearing cooler output end, wherein, flowing line is connected to catch-basin outside factory.Relative to prior art, the utility model nuclear power plant secondary circuit rinses cooling and drainage arrangement has the advantages that：1) secondary circuit flushing is carried out by only need to starting condensate pump, debugging electricity consumption and debugging manpower has been saved；2) low-temperature receiver missing when solidifying pump motor and pump preliminary operation is solved the problems, such as, shifts to an earlier date pump group preliminary operation；3) shorten secondary circuit and rinse the duration, reduce conventional island factory building internal drainage amount, fundamentally reduce the probability that conventional island equipment is flooded.
Description
Technical field
The utility model belongs to technical field of nuclear power, and more specifically, the utility model is related to a kind of nuclear power plant's secondary circuit
Rinse cooling and drainage arrangement.
Background technology
At present, nuclear power plant's secondary circuit flushing work needs condensate pump continuously to run, the motor cooling water of condensate pump and
Bearing cooling water is provided by conventional island closed cooling water system (SRI).Therefore, it is necessary to continuous start during secondary circuit is rinsed
The cold source systems such as water circulating pump (CRF), supplement heat rejecter water pump (SEN), conventional island enclosed cooling water pump (SRI), and need to ensure
The reliability of system operation.
But, at least there is following defect in prior art：First, CRF/SEN/SRI is respectively started a general power for pump
About 7000KW, is debugging power consumption up to 10,000,000 degree during the secondary circuit of 2 months is rinsed；Secondly, if CRF/SEN/SRI
System because installation and debugging be in progress it is delayed, or during system equipment existing defects, or early stage system debug cannot continuous and steady operation,
The operating of condensate pump will be directly affected, the carrying out of secondary circuit flushing work is restricted.
Additionally, secondary circuit needs a large amount of drainings, the wherein draining of condenser, solidifying pump discharge filter screen and oxygen-eliminating device during rinsing
Amount is very big, but conventional island discharging of waste liquid system (SEK) finite capacity, and equipment quality is poor, it is impossible to meet secondary circuit flushing
A large amount of drainage requirements of period.By taking condenser draining as an example, emptying condenser is time-consuming about 30 hours every time, time and effort consuming, and holds
Easily there is causing repeatedly to occur not in time because of draining in conventional island equipment by the event of flooding.
In view of this, cooling and drainage arrangement are rinsed it is necessory to provide a kind of cheap, safety nuclear power plant secondary circuit.
Utility model content
The purpose of this utility model is：Overcome the defect of prior art, there is provided a kind of cheap, safety nuclear power plant two go back tos
Cooling and drainage arrangement are rinsed in road.
In order to realize above-mentioned utility model purpose, the utility model provides a kind of nuclear power plant's secondary circuit and rinses cooling and arrange
Water installations, it includes：Be connected with desalination water distribution system cooling water pipeline and cooling water pipe line output terminal connection several
Condensate pump motor and bearing cooler, and the flowing line of condensate pump motor and bearing cooler output end is connected, its
In, the flowing line is connected to catch-basin outside factory.
Cooling is rinsed as the utility model secondary circuit and a kind of of drainage arrangement improves, the cooling water pipeline and described
Flowing line is provided with isolating valve.
Cooling being rinsed as the utility model secondary circuit and a kind of of drainage arrangement improving, the cooling water pipeline is provided with two
Individual spare interface.
Cooling is rinsed as the utility model secondary circuit and a kind of of drainage arrangement improves, one in the spare interface
Spare interface connects condenser vacuum system, another spare interface connection steam turbine steam and draining system, and connecting pipeline
It is equipped with isolating valve.
Cooling is rinsed as the utility model secondary circuit and a kind of of drainage arrangement improves, from condensate pump motor and axle
The cooling water for holding cooler drains into condenser by pipeline, and pipeline is provided with isolating valve.
Rinse cooling as the utility model secondary circuit and a kind of of drainage arrangement improve, the discharge outlet of the condenser with
The flowing line is connected by least one pipeline, and pipeline is provided with draining pump and isolating valve.
Cooling is rinsed as the utility model secondary circuit and a kind of of drainage arrangement improves, be connected with the flowing line
Solidifying pump discharge filter screen, coagulates catch-basin outside pump discharge filter screen draining to factory.
Cooling being rinsed as the utility model secondary circuit and a kind of of drainage arrangement improving, catch-basin passes through three-way pipe outside factory
It is connected with oxygen-eliminating device.
Cooling is rinsed as the utility model secondary circuit and a kind of of drainage arrangement improves, the one outlet of the three-way pipe
It is connected by pipeline with the flowing line, and pipeline is provided with isolating valve.
Relative to prior art, the utility model nuclear power plant secondary circuit rinses cooling and drainage arrangement has following beneficial effect
Really：1) secondary circuit flushing is carried out by only need to starting condensate pump, is not required to start the systems such as CRF/SEN/SRI, not only saved about
About 10,000,000 degree of electricity consumption of debugging, and saved debugging manpower；2) low-temperature receiver missing asks when solving solidifying pump motor and pump preliminary operation
Topic, shifts to an earlier date pump group preliminary operation；3) increased steam turbine steam and draining system (GPV) and condenser vacuum system on cooling water pipeline
(CVI) reserved opening, makes the debugging of GPV and CVI systems be advanced by more than 1 month；4) increased drainage arrangement not only shortens two
More than 15 days duration is rinsed in loop, and reduces conventional island factory building internal drainage amount, has saved the electricity consumption of SEK pumps, fundamentally
Reduce the probability that conventional island equipment is flooded.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, cooling and drainage arrangement are rinsed to the utility model nuclear power plant secondary circuit
And its technique effect is described in detail, wherein：
Fig. 1 is the schematic diagram that the utility model nuclear power plant secondary circuit rinses cooling and drainage arrangement.
Specific embodiment
In order that goal of the invention of the present utility model, technical scheme and its Advantageous Effects become apparent from, below in conjunction with
The drawings and specific embodiments, are further elaborated to the utility model.It should be appreciated that described in this specification
Specific embodiment just for the sake of explain the utility model, be not to limit the utility model.
Refer to shown in Fig. 1, the utility model nuclear power plant secondary circuit rinses cooling and drainage arrangement to be included：With desalination moisture
The cooling water pipeline 10 of the connection of match system 90 and several condensate pump motors and bearing of the connection of the output end of cooling water pipeline 10
Cooler 20, and the flowing line 30 of condensate pump motor and the output end of bearing cooler 20 is connected, wherein, flowing line 30
Drain into catch-basin 40 outside factory.
According to a preferred embodiment of the present utility model, flowing line 30 is provided with isolating valve 302, flowing line 30
It is provided with support and fixes, can prevents flowing line 30 from rocking.
In the shown embodiment, cooling water pipeline 10 is provided with isolating valve 102, and cooling water pipeline 10 is in isolating valve 102
Upstream be provided with two spare interfaces 104,106.Wherein, spare interface 106 is connected with condenser vacuum system (CVI) 105, uses
In the preliminary operation of condenser vacuum pumping pump, its connecting pipeline is provided with isolating valve 109.Spare interface 104 and steam turbine steam and hydrophobic system
System (GPV) 108 is connected, and the pipeline flushing before shower nozzle is installed for GPV systems, and its connecting pipeline is provided with isolating valve 110.
When condenser 50 is not started working, the cooling water of condensate pump motor and bearing cooler 20 passes through flowing line
30 are immediately discharged to catch-basin 40 outside factory.When condenser 50 is started working, from condensate pump motor and bearing cooler 20
Cooling water drains into condenser 50 by pipeline 202, is rinsed for secondary circuit.In the shown embodiment, pipeline 202 be provided with every
From valve 204.
Two pipelines 502,504, pipeline 502,504 have been arranged in parallel between the discharge outlet and flowing line 30 of condenser 50
On be respectively equipped with draining pump 506,508 and isolating valve 510,512.Condenser 50 can directly draining to conventional island discharging of waste liquid system
80 or factory outside catch-basin 40.
The discharge outlet of solidifying pump discharge filter screen 60 is connected with flowing line 30 by pipeline 602, meets solidifying pump shutdown and operation
The dewatering needs of period.Solidifying pump discharge filter screen 60 can direct catch-basin 40 outside draining to factory.
The backwater of oxygen-eliminating device 70 to the pipeline of condenser 50 is provided with three-way pipe 706, the one outlet of three-way pipe 706 and draining
Pipeline 30 is connected by pipeline 702, and pipeline 702 is provided with isolating valve 704.Oxygen-eliminating device 70 can direct catch-basin outside draining to factory
40。
According to a preferred embodiment of the present utility model, pipeline 702 uses DN150 pipelines, remaining pipeline to use
DN100 pipelines, converge on DN150 pipelines.
According to a preferred embodiment of the present utility model, isolating valve 302,510,512 uses PN4.0 valves, remaining
Isolating valve uses PN1.6 valves.
Description to the utility model implementation method with reference to more than understands, relative to prior art, the utility model nuclear power
Factory's secondary circuit rinses cooling and drainage arrangement has the advantages that：1) secondary circuit punching is carried out by only need to starting condensate pump
Wash, be not required to start the systems such as CRF/SEN/SRI, not only save about 10,000,000 degree of electricity consumption of debugging, and save debugging manpower；2) may be used
Low-temperature receiver missing when solidifying pump motor and pump preliminary operation is solved the problems, such as, shifts to an earlier date pump group preliminary operation；3) on cooling water pipeline increased GPV and
CVI reserved openings, make the debugging of GPV and CVI systems shift to an earlier date more than 1 month；4) increased drainage arrangement not only shortens secondary circuit punching
Wash the duration more than 15 days, and reduce conventional island factory building internal drainage amount, save the electricity consumption of SEK pumps, fundamentally reduce conventional island
The probability that equipment is flooded.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out appropriate change and modification.Therefore, the utility model is not limited to specific implementation disclosed and described above
Some modifications and changes of the present utility model should also be as falling into scope of the claims of the present utility model by mode.
Although additionally, used some specific terms in this specification, these terms merely for convenience of description, not to this reality
With any limitation of new composition.
Claims (9)
1. a kind of nuclear power plant's secondary circuit rinses cooling and drainage arrangement, it is characterised in that including：It is connected with desalination water distribution system
Cooling water pipeline and cooling water pipe line output terminal connection several condensate pump motors and bearing cooler, and connection
The flowing line of condensate pump motor and bearing cooler output end, wherein, the flowing line is connected to catch-basin outside factory.
2. nuclear power plant's secondary circuit according to claim 1 rinses cooling and drainage arrangement, it is characterised in that the cooling water
Pipeline and the flowing line are provided with isolating valve.
3. nuclear power plant's secondary circuit according to claim 1 rinses cooling and drainage arrangement, it is characterised in that the cooling water
Pipeline is provided with two spare interfaces.
4. nuclear power plant's secondary circuit according to claim 3 rinses cooling and drainage arrangement, it is characterised in that described reserving connects
Spare interface connection condenser vacuum system in mouthful, another spare interface connection steam turbine steam and draining system,
And connecting pipeline is equipped with isolating valve.
5. nuclear power plant's secondary circuit according to claim 1 rinses cooling and drainage arrangement, it is characterised in that from condensate
The cooling water of pump motor and bearing cooler drains into condenser by pipeline, and pipeline is provided with isolating valve.
6. nuclear power plant's secondary circuit according to claim 5 rinses cooling and drainage arrangement, it is characterised in that the condenser
Discharge outlet be connected by least one pipeline with the flowing line, and pipeline is provided with draining pump and isolating valve.
7. nuclear power plant's secondary circuit according to claim 1 rinses cooling and drainage arrangement, it is characterised in that the drainpipe
Solidifying pump discharge filter screen is connected with line, catch-basin outside pump discharge filter screen draining to factory is coagulated.
8. nuclear power plant's secondary circuit according to claim 1 rinses cooling and drainage arrangement, it is characterised in that catch-basin outside factory
Oxygen-eliminating device is connected with by three-way pipe.
9. nuclear power plant's secondary circuit according to claim 8 rinses cooling and drainage arrangement, it is characterised in that the three-way pipe
One outlet be connected by pipeline with the flowing line, and pipeline is provided with isolating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621349231.4U CN206271432U (en) | 2016-12-09 | 2016-12-09 | Nuclear power plant's secondary circuit rinses cooling and drainage arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621349231.4U CN206271432U (en) | 2016-12-09 | 2016-12-09 | Nuclear power plant's secondary circuit rinses cooling and drainage arrangement |
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| Publication Number | Publication Date |
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| CN206271432U true CN206271432U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621349231.4U Active CN206271432U (en) | 2016-12-09 | 2016-12-09 | Nuclear power plant's secondary circuit rinses cooling and drainage arrangement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107665744A (en) * | 2017-08-29 | 2018-02-06 | 中广核工程有限公司 | Nuclear power station secondary loop flusher and its purging method |
| CN109707027A (en) * | 2019-02-20 | 2019-05-03 | 临涣焦化股份有限公司 | A kind of benzene hydrogenation industrial wastewater optimization processing system |
| CN111550764A (en) * | 2020-06-10 | 2020-08-18 | 三门核电有限公司 | Nuclear power plant starting two-loop flushing method |
| CN111550765A (en) * | 2020-06-10 | 2020-08-18 | 三门核电有限公司 | Nuclear power plant starting secondary loop large-flow intermittent washing method |
-
2016
- 2016-12-09 CN CN201621349231.4U patent/CN206271432U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107665744A (en) * | 2017-08-29 | 2018-02-06 | 中广核工程有限公司 | Nuclear power station secondary loop flusher and its purging method |
| CN107665744B (en) * | 2017-08-29 | 2019-07-02 | 中广核工程有限公司 | Nuclear power station secondary loop flusher and its purging method |
| CN109707027A (en) * | 2019-02-20 | 2019-05-03 | 临涣焦化股份有限公司 | A kind of benzene hydrogenation industrial wastewater optimization processing system |
| CN111550764A (en) * | 2020-06-10 | 2020-08-18 | 三门核电有限公司 | Nuclear power plant starting two-loop flushing method |
| CN111550765A (en) * | 2020-06-10 | 2020-08-18 | 三门核电有限公司 | Nuclear power plant starting secondary loop large-flow intermittent washing method |
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