CN107131494B - Multi-module type HTGR Nuclear Power Plant water supply system - Google Patents
Multi-module type HTGR Nuclear Power Plant water supply system Download PDFInfo
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- CN107131494B CN107131494B CN201710283154.XA CN201710283154A CN107131494B CN 107131494 B CN107131494 B CN 107131494B CN 201710283154 A CN201710283154 A CN 201710283154A CN 107131494 B CN107131494 B CN 107131494B
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- pipeline
- water supply
- main pipe
- pump group
- supply pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
-
- 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
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
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Abstract
The present invention relates to a kind of multi-module type HTGR Nuclear Power Plant water supply systems, including oxygen-eliminating device, the first pipeline, water supply pump group, the second pipeline, high-pressure heater, the first main pipe and more than two third pipelines.Oxygen-eliminating device is connected with first pipeline one end, and the first pipeline other end is connected with second pipeline one end.The second pipeline other end is connected with the influent side of the first main pipe.For being connected to NSSS module, the third pipeline other end is connected with the water outlet side of the first main pipe for third pipeline one end.Water supply pump group is arranged on the first pipeline, and high-pressure heater is arranged on second pipeline.Relative to traditional multi-module type HTGR Nuclear Power Plant water supply system, the present embodiment is by increasing the first main pipe of setting, high-temperature high pressure water is distributed into more than two NSSS modules by the first main pipe, it so can be only with a water supply pump group and a high-pressure heater, occupied area is just substantially reduced in this way, and cost is relatively low.
Description
Technical field
The present invention relates to multi-module type HTGR Nuclear Power Plant technical fields, more particularly to a kind of multi-module type high temperature
Be gas-cooled reactor of nuclear power plant water supply system.
Background technique
Traditional multi-module type HTGR Nuclear Power Plant water supply system includes oxygen-eliminating device, more than two water supply pump groups and two
A above high-pressure heater.Water supply pump group, high-pressure heater and NSSS (Nuclear Steam Supply System, core steam
Supply system) module is accordingly arranged one by one, and water supply pump group is connected with oxygen-eliminating device.Deaerated water in oxygen-eliminating device enters each feed pump
After group, water supply pump group pumps deaerated water into high-pressure heater, is sent after being heated by high-pressure heater to NSSS module.However,
More than two water supply pump groups, more than two high-pressure heaters in multi-module type HTGR Nuclear Power Plant water supply system make height
Wet cold dome nuclear power station water supply system occupied area is larger, and higher cost.
Summary of the invention
Based on this, it is necessary to overcome the deficiencies of existing technologies, provide a kind of multi-module type HTGR Nuclear Power Plant water supply
System, it enables to occupied area to reduce, cost reduces.
Its technical solution is as follows: a kind of multi-module type HTGR Nuclear Power Plant water supply system, comprising: oxygen-eliminating device, first
Pipeline, water supply pump group, the second pipeline, high-pressure heater, the first main pipe and more than two third pipelines；The oxygen-eliminating device and institute
It states first pipeline one end to be connected, the first pipeline other end is connected with second pipeline one end, second pipeline
The other end is connected with the influent side of first main pipe, and third pipeline one end is for being connected to NSSS module, and described the
The three pipeline other ends are connected with the water outlet side of first main pipe, and the water supply pump group is arranged on first pipeline, institute
High-pressure heater is stated to be arranged on second pipeline.
Above-mentioned multi-module type HTGR Nuclear Power Plant water supply system, the deaerated water in oxygen-eliminating device are taken out by water supply pump group
Enter to the first pipeline, after enter in the second pipeline, by the second pipeline high-pressure heater heat treatment be converted to high temperature height
Water is pressed, enters in the first main pipe, is delivered to more than two NSSS modules one by one respectively finally by more than two third pipelines
In.As it can be seen that the present embodiment is by increasing setting first relative to traditional multi-module type HTGR Nuclear Power Plant water supply system
Main pipe is distributed high-temperature high pressure water into more than two NSSS modules by the first main pipe, so can be only with a feed pump
Group and a high-pressure heater, just substantially reduce occupied area, and cost is relatively low in this way.
The multi-module type HTGR Nuclear Power Plant water supply system further includes hydraulic pressure tune in one of the embodiments,
Regulating device, the 4th pipeline and the second main pipe being arranged between first pipeline and second pipeline, first pipeline
It is connected with the influent side of second main pipe, the water outlet side of second main pipe is connected with second pipeline, and described
Four pipelines are arranged in parallel with second pipeline, and the water-pressure regulating device is arranged on the 4th pipeline；Second pipe
Isolating valve is equipped on road, the 4th pipeline.In this way, when the high-pressure heater failure on the second pipeline, the second pipe of control
The isolating valve of road is closed, and just no longer high-temperature high pressure water is input in the first main pipe on such second pipeline, synchronizing makes the 4th
Isolating valve on pipeline is opened, and water-pressure regulating device adjusts the hydraulic pressure that the 4th pipeline is input to the deaerated water in the first main pipe, with
It is consistent with the hydraulic pressure that the second pipeline is input to the deaerated water in the first main pipe, i.e., the second pipeline is replaced by the 4th pipeline, with
When realizing that high-pressure heater breaks down, it still is able to supply deaerated water to the first main pipe, to not influence the deoxygenation of NSSS module
Water supply.In the present embodiment, water-pressure regulating device uses restricting orifice.
The multi-module type HTGR Nuclear Power Plant water supply system further includes that setting exists in one of the embodiments,
The second main pipe between first pipeline and second pipeline, the influent side phase of first pipeline and second main pipe
Connection, the water outlet side of second main pipe is connected with second pipeline, second pipeline be it is more than two, and described the
Two pipelines are arranged in parallel, and are provided with isolating valve on second pipeline；The high-pressure heater is two or more, and the high pressure adds
Hot device is corresponding to second pipeline to be arranged.In this way, when NSSS module is more, i.e., it is larger to high temperature and pressure water demand, it can
So that more than two high-pressure heaters carry out conversion work simultaneously, to meet NSSS module to the biggish demand of high-temperature high pressure water
Amount；Secondly, when one of high-pressure heater failure, then it can be by the second pipeline where the high-pressure heater of failure
On isolating valve close, by other the second Pipeline transport high pressure-temperature water, NSSS module work be not affected；Furthermore it is possible to
Using one of high-pressure heater as spare high-pressure heater, when determining high-pressure heater failure, then will go out
The isolating valve on the second pipeline where the high-pressure heater of existing failure is closed, by the second pipe where spare high-pressure heater
The isolating valve of road is opened, and replaces the high-pressure heater to break down by spare high-pressure heater, the work of NSSS module not by
To influence.In the present embodiment, there are two isolating valves, high-pressure heater to be between two isolating valves for setting on the second pipeline, and two
After a isolating valve close synchronously, it the operation such as can repair, replace to high-pressure heater.
The multi-module type HTGR Nuclear Power Plant water supply system further includes that setting exists in one of the embodiments,
The second main pipe between first pipeline and second pipeline, the influent side phase of first pipeline and second main pipe
Connection, the water outlet side of second main pipe is connected with second pipeline, first pipeline be it is more than two, and described the
One pipeline is arranged in parallel, and the water supply pump group is two or more, the water supply pump group to first pipeline is corresponding one by one is arranged,
First pipeline is equipped with isolating valve.In this way, can be synchronous by the deaerated water in oxygen-eliminating device using more than two water supply pump groups
It pumps into the second main pipe, to meet NSSS module to the demand of deaerated water.Secondly, working as one of water supply pump group failure
When, then the isolating valve on the first pipeline where the water supply pump group of failure can be closed, by other the first Pipeline transports
Deaerated water, the work of NSSS module are not affected.For example, when the water supply pump group worked normally is three, if one of water supply
Pump group failure is then only left two water supply pump group work, then the water fluctuation of NSSS module is up to 33.3%；It works normally
When water supply pump group is two, if one of water supply pump group failure, the work of next water supply pump group is only remained, then NSSS module
Water fluctuation is up to 50%.
Water supply pump group two sides are provided with the isolating valve in one of the embodiments, give described in one of them
Water pump group is spare water supply pump group.In this way, when determining the failure of water supply pump group, then by the water supply pump group of failure
Isolating valve on first pipeline at place is closed, and the isolating valve on the first pipeline where spare water supply pump group is opened, by
Spare water supply pump group replaces the water supply pump group to break down, and the work of NSSS module is not affected, and can realize feed pump
The online switching of group, improves the availability of water supply pump group.
In one of the embodiments, the multi-module type HTGR Nuclear Power Plant water supply system further include two with
Upper 5th pipeline and more than two first flow regulating valves, the 5th pipeline, the first flow regulating valve and described first
Pipeline is accordingly arranged one by one, and the first flow regulating valve is arranged on the 5th pipeline, described 5th pipeline one end and institute
It states oxygen-eliminating device to be connected, the 5th pipeline other end is connected with first pipeline and is located at going out for the water supply pump group
Water side.In this way, NSSS module is during startup, the minimum discharge of water supply pump group, Ke Yixiang are less than to the demand of high pressure water
The opening size of first flow regulating valve should be increased or reduced, water a part of such water supply pump group water outlet side can pass through the 5th
Pipeline is flow back into oxygen-eliminating device, plays the role of preferable water balance, to meet the minimum discharge of water supply pump group.The present embodiment
In, first flow regulating valve two sides are provided with isolating valve.
Second flow regulating valve is provided on the third pipeline in one of the embodiments,.Second flow regulating valve
The uninterrupted that the high-temperature high pressure water in third pipeline enters in NSSS module can be adjusted.
Second flow regulating valve set on the third pipeline is two in one of the embodiments, two institutes
It states second flow regulating valve to be arranged in parallel, and second flow regulating valve two sides are provided with isolating valve.In this way, ought wherein one
, can be using another second flow regulating valve be used when a second flow regulating valve failure, NSSS module works not by shadow
It rings.
Check-valves is provided on first pipeline in one of the embodiments,.Check-valves can be avoided water supply pump group
Outlet high pressure water be back in oxygen-eliminating device.
Strainer is provided on first pipeline in one of the embodiments, and the strainer is located at the feed pump
The water inlet side of group.Strainer can filter out the impurity mixed in deaerated water, improve the deaerated water entered in water supply pump group
Degree of purity.
Detailed description of the invention
Fig. 1 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram one described in the embodiment of the present invention；
Fig. 2 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram two described in the embodiment of the present invention；
Fig. 3 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram three described in the embodiment of the present invention；
Fig. 4 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram four described in the embodiment of the present invention；
Fig. 5 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram five described in the embodiment of the present invention；
Fig. 6 is multi-module type HTGR Nuclear Power Plant water supply system structural schematic diagram six described in the embodiment of the present invention.
10, oxygen-eliminating device, the 20, first pipeline, 21, water supply pump group, 22, check-valves, 23, strainer, the 30, second pipeline, 31, height
Pressure heater, 32, second flow regulating valve, the 40, first main pipe, 50, third pipeline, 60, NSSS module, the 70, the 4th pipeline,
71, water-pressure regulating device, the 80, second main pipe, the 90, the 5th pipeline, 91, first flow regulating valve, 100, isolating valve.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
It, can be with when an element is considered as " connection " another element it should be noted that in embodiment described above
It is directly to another element or may be simultaneously present intermediary element.On the contrary, when element be referred to as " direct " with it is another
When element connects, intermediary element is not present.
As shown in Figures 1 to 6, a kind of multi-module type HTGR Nuclear Power Plant water supply system, including oxygen-eliminating device 10, first
Pipeline 20, water supply pump group 21, the second pipeline 30, high-pressure heater 31, the first main pipe 40 and more than two third pipelines 50.Institute
Oxygen-eliminating device 10 is stated to be connected with described first pipeline, 20 one end.First pipeline, 20 other end and described second pipeline, 30 one end
It is connected.Second pipeline, 30 other end is connected with the influent side of first main pipe 40.Described 50 one end of third pipeline
For being connected to NSSS module 60,50 other end of third pipeline is connected with the water outlet side of first main pipe 40.It is described
Water supply pump group 21 is arranged on first pipeline 20, and the high-pressure heater 31 is arranged on second pipeline 30.
Above-mentioned multi-module type HTGR Nuclear Power Plant water supply system, the deaerated water in oxygen-eliminating device 10 pass through water supply pump group
21 are pumped into the first pipeline 20, after enter in the second pipeline 30, heated by the high-pressure heater 31 in the second pipeline 30
High-temperature high pressure water is converted to, is entered in the first main pipe 40, is delivered to one by one respectively finally by more than two third pipelines 50
In more than two NSSS modules 60.As it can be seen that relative to traditional multi-module type HTGR Nuclear Power Plant water supply system, this implementation
The first main pipe 40 is arranged by increasing in example, is distributed high-temperature high pressure water into more than two NSSS modules 60 by the first main pipe 40,
So occupied area can be just substantially reduced in this way only with a water supply pump group 21 and a high-pressure heater 31, and at
This is lower.
In the present embodiment, the multi-module type HTGR Nuclear Power Plant water supply system further includes water-pressure regulating device
71, the 4th pipeline 70 and the second main pipe 80 being arranged between first pipeline 20 and second pipeline 30.Described first
Pipeline 20 is connected with the influent side of second main pipe 80.The water outlet side of second main pipe 80 and 30 phase of the second pipeline
Connection, the 4th pipeline 70 are arranged in parallel with second pipeline 30, and the water-pressure regulating device 71 is arranged the described 4th
On pipeline 70.Isolating valve 100 is equipped on second pipeline 30, the 4th pipeline 70.In this way, when on the second pipeline 30
When 31 failure of high-pressure heater, the isolating valve 100 controlled on the second pipeline 30 is closed, just no longer will be high on such second pipeline 30
Warm high pressure water is input in the first main pipe 40, and synchronizing opens the isolating valve 100 on the 4th pipeline 70, and water-pressure regulating device 71 is adjusted
Whole 4th pipeline 70 is input to the hydraulic pressure of the deaerated water in the first main pipe 40, to be input in the first main pipe 40 with the second pipeline 30
Deaerated water hydraulic pressure it is consistent, i.e., by the 4th pipeline 70 replace the second pipeline 30, with realize high-pressure heater 31 occur therefore
It when barrier, still is able to supply deaerated water to the first main pipe 40, to not influence the deaerated water supply of NSSS module 60.The present embodiment
In, water-pressure regulating device 71 uses restricting orifice.
In addition, please referring to Fig. 2, Fig. 3 and Fig. 5, the multi-module type HTGR Nuclear Power Plant water supply system further includes
The second main pipe 80 between first pipeline 20 and second pipeline 30 is set.First pipeline 20 and described second
The influent side of main pipe 80 is connected, and the water outlet side of second main pipe 80 is connected with second pipeline 30, second pipe
Road 30 is two or more, and second pipeline 30 is arranged in parallel, and is provided with isolating valve 100 on second pipeline 30；It is described
High-pressure heater 31 is two or more, the high-pressure heater 31 setting corresponding to second pipeline 30.In this way, working as NSSS mould
It is when block 60 is more, i.e., larger to high temperature and pressure water demand, more than two high-pressure heaters 31 can be made while carrying out conversion work
Make, to meet NSSS module 60 to the biggish demand of high-temperature high pressure water；Secondly, working as one of 31 failure of high-pressure heater
When, then the isolating valve 100 on the second pipeline 30 where the high-pressure heater 31 of failure can be closed, by other second
30 conveying high-pressure high-temperature water of pipeline, the work of NSSS module 60 are not affected；Furthermore it is possible to by one of high-pressure heater 31
As spare high-pressure heater 31, when determining the failure of high-pressure heater 31, then by the hyperbaric heating of failure
The isolating valve 100 on the second pipeline 30 where device 31 is closed, will be on the second pipeline 30 where spare high-pressure heater 31
Isolating valve 100 open, the high-pressure heater 31 to break down is replaced by spare high-pressure heater 31, NSSS module 60 works
It is not affected.In the present embodiment, on the second pipeline 30 setting there are two isolating valve 100, high-pressure heater 31 be in two every
From between valve 100, after two 100 close synchronouslies of isolating valve, it the operation such as can repair, replace to high-pressure heater 31.
In addition, please referring to fig. 4 to fig. 6, the multi-module type HTGR Nuclear Power Plant water supply system further includes setting
The second main pipe 80 between first pipeline 20 and second pipeline 30.First pipeline 20 and second main pipe
80 influent side is connected, and the water outlet side of second main pipe 80 is connected with second pipeline 30.First pipeline 20
For two or more, and first pipeline 20 is arranged in parallel.The water supply pump group 21 is two or more, the water supply pump group 21 with
First pipeline 20 corresponding setting one by one.First pipeline 20 is equipped with isolating valve 100.In this way, can use two with
The upper synchronization of water supply pump group 21 pumps the deaerated water in oxygen-eliminating device 10 into the second main pipe 80, to meet NSSS module 60 to deoxygenation
The demand of water.Secondly, when one of 21 failure of water supply pump group, then it can be by 21 place of water supply pump group of failure
Isolating valve 100 on first pipeline 20 is closed, and conveys deaerated water by other first pipelines 20, NSSS module 60 works not by shadow
It rings.For example, if one of 21 failure of water supply pump group, being only left two when the water supply pump group 21 worked normally is three and giving
Water pump group 21 works, then the water fluctuation of NSSS module 60 is up to 33.3%；When the water supply pump group 21 of normal work is two,
If one of 21 failure of water supply pump group, only remains next water supply pump group 21 and work, then the water of NSSS module 60 fluctuates most
Greatly 50%.
Further, 21 two sides of water supply pump group are provided with the isolating valve 100, one of them described water supply pump group
21 be spare water supply pump group 21.In this way, when determining the failure of water supply pump group 21, then by the water supply pump group of failure
The isolating valve 100 on the first pipeline 20 where 21 is closed, by the first pipeline 20 where spare water supply pump group 21 every
It is opened from valve 100, the water supply pump group 21 to break down is replaced by spare water supply pump group 21, NSSS module 60 works not by shadow
It rings, can realize that water supply pump group 21 switches online, improve the availability of water supply pump group 21.
In the present embodiment, Fig. 5 and Fig. 6 are please referred to, the multi-module type HTGR Nuclear Power Plant water supply system is also wrapped
Include the 5th pipeline 90 of two or more and more than two first flow regulating valves 91.5th pipeline 90, the first flow tune
Save the corresponding setting one by one of valve 91 and first pipeline 20.The first flow regulating valve 91 is arranged in the 5th pipeline 90
On.Described 5th pipeline, 90 one end is connected with the oxygen-eliminating device 10,90 other end of the 5th pipeline and first pipeline
20 are connected and are located at the water outlet side of the water supply pump group 21.In this way, NSSS module 60 is during startup, to high pressure water
Demand is less than the minimum discharge of water supply pump group 21, can increase accordingly or reduce the opening size of first flow regulating valve 91,
Water a part of 21 water outlet side of water supply pump group can be flow back into oxygen-eliminating device 10 by the 5th pipeline 90 in this way, play preferable water
Balanced action is measured, to meet the minimum discharge of water supply pump group 21.In the present embodiment, 91 two sides of first flow regulating valve are provided with
Isolating valve 100.
In addition, being provided with second flow regulating valve 32 on the third pipeline 50.Second flow regulating valve 32 can adjust
High-temperature high pressure water in third pipeline 50 enters the uninterrupted in NSSS module 60.
Further, second flow regulating valve 32 set on the third pipeline 50 is two, two described second
Flow control valve 32 is arranged in parallel, and 32 two sides of second flow regulating valve are provided with isolating valve 100.In this way, ought be wherein
, can be using another second flow regulating valve 32 be used when one second flow 32 failure of regulating valve, NSSS module 60 works
It is not affected.
Further, check-valves 22 is provided on first pipeline 20.Check-valves 22 can be avoided water supply pump group 21
Outlet high pressure water is back in oxygen-eliminating device 10.
Further, strainer 23 is provided on first pipeline 20, and the strainer 23 is located at the water supply pump group 21
Water inlet side.Strainer 23 can filter out the impurity mixed in deaerated water, improve the deaerated water entered in water supply pump group 21
Degree of purity.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of multi-module type HTGR Nuclear Power Plant water supply system characterized by comprising oxygen-eliminating device, is given the first pipeline
Water pump group, the second pipeline, high-pressure heater, the first main pipe and more than two third pipelines；The oxygen-eliminating device and first pipe
Road one end is connected, and the first pipeline other end is connected with second pipeline one end, the second pipeline other end with
The influent side of first main pipe is connected, and for being connected to NSSS module, the third pipeline is another for third pipeline one end
One end is connected with the water outlet side of first main pipe, and the water supply pump group is arranged on first pipeline, and the high pressure adds
Hot device is arranged on second pipeline；
Further include water-pressure regulating device, the 4th pipeline and be arranged between first pipeline and second pipeline second
Main pipe, first pipeline are connected with the influent side of second main pipe, the water outlet side of second main pipe and described second
Pipeline is connected, and the 4th pipeline is arranged in parallel with second pipeline, and the water-pressure regulating device is arranged the described 4th
On pipeline；Isolating valve is equipped on second pipeline, the 4th pipeline.
2. multi-module type HTGR Nuclear Power Plant water supply system according to claim 1, which is characterized in that further include setting
Set the second main pipe between first pipeline and second pipeline, the water inlet of first pipeline and second main pipe
Side is connected, and the water outlet side of second main pipe is connected with second pipeline, and second pipeline is more than two, and institute
It states the second pipeline to be arranged in parallel, is provided with isolating valve on second pipeline；The high-pressure heater is two or more, the height
Heater is corresponding to second pipeline is arranged for pressure.
3. multi-module type HTGR Nuclear Power Plant water supply system according to claim 1, which is characterized in that further include setting
Set the second main pipe between first pipeline and second pipeline, the water inlet of first pipeline and second main pipe
Side is connected, and the water outlet side of second main pipe is connected with second pipeline, and first pipeline is more than two, and institute
It states the first pipeline to be arranged in parallel, the water supply pump group is two or more, and the water supply pump group and first pipeline are corresponding one by one
Setting, first pipeline are equipped with isolating valve.
4. multi-module type HTGR Nuclear Power Plant water supply system according to claim 3, which is characterized in that the water supply
Pump group two sides are provided with the isolating valve, one of them described water supply pump group is spare water supply pump group.
5. multi-module type HTGR Nuclear Power Plant water supply system according to claim 3, which is characterized in that further include two
A above 5th pipeline and more than two first flow regulating valves, the 5th pipeline, the first flow regulating valve and described
First pipeline is accordingly arranged one by one, and the first flow regulating valve is arranged on the 5th pipeline, described 5th pipeline one end
It is connected with the oxygen-eliminating device, the 5th pipeline other end is connected with first pipeline and is located at the water supply pump group
Water outlet side.
6. multi-module type HTGR Nuclear Power Plant water supply system according to claim 1, which is characterized in that the third
Second flow regulating valve is provided on pipeline.
7. multi-module type HTGR Nuclear Power Plant water supply system according to claim 6, which is characterized in that the third
Set second flow regulating valve is two on pipeline, and two second flow regulating valves are arranged in parallel, and described second
Flow control valve two sides are provided with isolating valve.
8. multi-module type HTGR Nuclear Power Plant water supply system according to claim 1, which is characterized in that described first
Check-valves is provided on pipeline.
9. multi-module type HTGR Nuclear Power Plant water supply system according to any one of claims 1 to 8, feature exist
In being provided with strainer on first pipeline, and the strainer is located at the water inlet side of the water supply pump group.
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| CN104934080A (en) * | 2015-06-26 | 2015-09-23 | 上海核工程研究设计院 | Main water supply system of double-reactor nuclear power station |
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| RU2097846C1 (en) * | 1996-04-26 | 1997-11-27 | Ленинградская атомная электростанция им.В.И.Ленина | Method for cooling fuel assemblies in case of coolant failure in circulating circuit |
| CN202484973U (en) * | 2012-02-20 | 2012-10-10 | 江苏核电有限公司 | Water supply system of steam generator |
| CN202948744U (en) * | 2012-10-22 | 2013-05-22 | 中国核动力研究设计院 | Water supply system adopting once-through steam generator reactor |
| JP2014137171A (en) * | 2013-01-16 | 2014-07-28 | Toshiba Corp | Water hammer prevention method of water supply heater pipeline |
| CN104934080A (en) * | 2015-06-26 | 2015-09-23 | 上海核工程研究设计院 | Main water supply system of double-reactor nuclear power station |
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