CN109698035A - A kind of primary Ioops coolant fill-drain syctem - Google Patents
A kind of primary Ioops coolant fill-drain syctem Download PDFInfo
- Publication number
- CN109698035A CN109698035A CN201811476704.0A CN201811476704A CN109698035A CN 109698035 A CN109698035 A CN 109698035A CN 201811476704 A CN201811476704 A CN 201811476704A CN 109698035 A CN109698035 A CN 109698035A
- Authority
- CN
- China
- Prior art keywords
- coolant
- fill
- primary
- primary ioops
- comb
- 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.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- 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
Abstract
The present invention provides a kind of primary Ioops coolant fill-drain syctem, including coolant reservoir tank, the primary Ioops row's coolant hose being connect with coolant reservoir tank, the coolant connecting with primary Ioops row's coolant hose fills comb, coolant is set to fill on comb, coolant delivery pump for pumping coolant to coolant reservoir tank, and it is set in primary Ioops reactor primary tank, comb is filled with coolant to connect for providing the heavy pump of coolant conveying pump intake inlet head, wherein, primary Ioops arrange coolant hose, coolant delivery pump, coolant fills comb and heavy pump constitutes the discharge pipe of primary Ioops coolant, for coolant to be discharged into coolant reservoir tank out of reactor primary tank.Primary tank liquid level can be reduced to primary tank bottom welding seam hereinafter, being achieved the maintenance of primary tank internal unit, replacement and the maintenance of primary tank inside weld by fill-drain syctem of the invention.
Description
Technical field
The present invention relates to technical field of nuclear power more particularly to a kind of use heavy metal or heavy metal alloy as coolant
The primary Ioops coolant fill-drain syctem of nuclear reactor.
Background technique
Nuclear reactor using heavy metal or heavy metal alloy as coolant, coolant density is larger, same pressure differential
Under, the liquid-column height of high density coolant is only capable of reach water-column 1/10 or lower；Generally avoid filling when design comb with
Primary tank upper opening position is lower than normal level, causes primary Ioops coolant loss to bring Core uncovering to avoid pipeline breaking
Risk；And reactor primary tank bottom to refrigerant storage device has biggish height difference.In the case, simple direct using pump
The discharge of coolant is difficult to realize to the mode that high density coolant is aspirated in primary tank and is drained.If being not provided with primary Ioops
Maintenance, replacement to equipment in primary tank is brought difficulty by coolant removal method, and the maintenance of primary tank inside weld is also difficult to reality
It is existing.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of primary Ioops coolant fill-drain syctem, which passes through
Heavy pump is set in reactor primary tank, to guarantee the inlet head of coolant conveying pump intake, to realize the row of coolant
Out and drain.
In order to solve the above technical problem, the present invention provides a kind of primary Ioops coolant fill-drain syctems, including coolant to deposit
Storage device, the primary Ioops row's coolant hose connecting with the refrigerant storage device, connect with primary Ioops row's coolant hose
Coolant fill comb, be set to the coolant and fill on comb, filled for pumping the coolant to the refrigerant storage
The coolant delivery pump set, and be set in primary Ioops reactor primary tank, fill comb with the coolant and connect for mentioning
For the heavy pump of the inlet head of coolant conveying pump intake, wherein
The primary Ioops row coolant hose, coolant delivery pump, coolant fill comb and heavy pump constitutes primary Ioops coolant
Discharge pipe, for the coolant to be discharged into refrigerant storage device out of described reactor primary tank.
Wherein, which further includes that primary Ioops fill coolant hose, and the refrigerant storage device passes through described one time
Road, which fills coolant hose and fills comb with the coolant, to be connect, and the primary Ioops fill coolant hose, coolant fills comb and constitutes one
Circuit coolant is filled with pipeline, for the coolant to be filled with the main appearance of the reactor from the refrigerant storage device
In device.
Wherein, the primary Ioops, which fill on coolant hose, is provided with the first shut-off valve and the first non-return valve,
First shut-off valve is filled with pipeline described in being used to be switched on or off,
First non-return valve be used for it is described be filled with pipeline open when, prevent coolant by the primary Ioops coolant hose it is inverse
It flows in the refrigerant storage device.
Wherein, it is provided with the second shut-off valve and the second non-return valve on the primary Ioops row coolant hose,
Second shut-off valve is for being switched on or off the discharge pipe；
Second non-return valve is used for when the discharge pipe is opened, and prevents the coolant from passing through primary Ioops row's cooling
Agent pipe adverse current is filled in comb to the coolant.
Wherein, the coolant, which fills on comb, is provided with third shut-off valve, and the third shut-off valve is for being switched on or off
It is described to be filled with pipeline and discharge pipe.
Wherein, the coolant fills comb and operates normally from primary tank top cover or higher than coolant from primary tank wall surface
Enter inside primary tank at the position of liquid level.
Wherein, the arrangement height of the coolant delivery pump fills the extreme higher position of comb lower than the coolant.
Wherein, the heavy pump is vertical centrifugal pump, and the heavy pump is arranged in the bottom of reactor primary tank or the bottom of close to
At the position in portion.
Wherein, it is provided with electric heater unit and attemperator in the refrigerant storage device, be respectively used to described
Refrigerant storage device is heated and is kept the temperature, so that the coolant maintains liquid condition.
Wherein, coolant mass detection device and gas detection equipment, institute are additionally provided in the refrigerant storage device
Coolant mass detection device is stated for detecting the quality of the coolant, the gas detection equipment is for detecting the cooling
Gaseous mass in agent storage device.
The beneficial effect of the embodiment of the present invention is: fill-drain syctem of the invention is pumped by being arranged to sink in primary tank bottom,
Guarantee that coolant conveying pump intake has minimum inlet head, in the normal fortune for not influencing primary Ioops system and associated auxiliary systems
Under row, primary Ioops refrigerant level can be reduced to primary tank bottom welding seam height hereinafter, repairing primary tank internal unit, more
It changes and the maintenance of primary tank inside weld is achieved, while avoiding operating normally below liquid level even in primary tank primary Ioops coolant
When primary tank bottom opening, comb rupture is filled in elimination leads to primary Ioops coolant loss, into the risk for causing Core uncovering；This
Outside, be not in lead to the accident of primary Ioops coolant loss because filling comb rupture, second barrier function can be performed effectively；Most
Afterwards, which will not increase additional design requirement to other equipment, and coolant higher for density has preferable
Applicability, can under primary Ioops sealed environment the row's of realization coolant function, the diffusion of radioactivity and poisonous substance can be effectively prevent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of primary Ioops coolant fill-drain syctem of the invention.
Specific embodiment
The explanation of following embodiment be with reference to attached drawing, can be to the specific embodiment implemented to the example present invention.
It please refers to shown in Fig. 1, the embodiment of the present invention one provides a kind of primary Ioops coolant fill-drain syctem, which includes cold
But agent storage device 1, the primary Ioops row's coolant hose 3 connecting with the refrigerant storage device 1, arranges with the primary Ioops and cools down
The coolant that agent pipe 3 connects fills comb 4, is set to the coolant and fills on comb 4, for pumping the coolant to described cold
But the coolant delivery pump 5 of agent storage device 1, and be set in primary Ioops reactor primary tank 6, fill row with the coolant
Pipe 4 connects the heavy pump 7 for being used to provide the described the inlet head of 5 entrance of coolant delivery pump, wherein
Primary Ioops row coolant hose 3, coolant delivery pump 5, coolant fill comb 4 and heavy pump 7 to constitute primary Ioops cold
But the discharge pipe of agent, for the coolant to be discharged into refrigerant storage device 1 out of described reactor primary tank 6.
Wherein, which further includes that primary Ioops fill coolant hose 2, and the refrigerant storage device 1 passes through described one
Circuit, which fills coolant hose 2 and fills comb 4 with the coolant, to be connect, and the primary Ioops fill coolant hose 2, coolant fills 4 structure of comb
It is filled with pipeline at primary Ioops coolant, it is described anti-for the coolant to be filled with from the refrigerant storage device 1
It answers in heap primary tank 6.
Specifically, refrigerant storage device 1 is coolant reservoir tank, and coolant reservoir tank is for storing highdensity one time
Road coolant, storage tank can receive and store the high density coolant from primary Ioops, and capacity is sufficient to accommodate entire primary Ioops
Coolant loading amount.There is enough potential energy, coolant reservoir tank minimum point should ensure that when to guarantee to fill coolant to primary Ioops
Liquid level is operated normally greater than primary Ioops.Furthermore the design on fill-drain syctem pipeline, which also should ensure that primary Ioops, fills coolant function energy
It is enough smoothly to execute.
In order to enable the coolant in coolant reservoir tank maintains liquid condition, coolant reservoir tank is additionally provided with electricity and adds
Thermal and attemperator, wherein electric heater unit is for heating the coolant in coolant reservoir tank, heat preservation dress
It sets for being kept the temperature to coolant reservoir tank.
It is provided with quality detection device and gas-detecting device in coolant reservoir tank, is respectively used to detection refrigerant storage
Coolant mass and gaseous mass in tank.
Argon gas blow device and air purge set are additionally provided in coolant reservoir tank, in order to which staff is to cooling
Agent storage tank is overhauled.
Specifically, the second shut-off valve 82 and the second non-return valve 92, the second shut-off valve are provided on primary Ioops row coolant hose 3
82 for being switched on or off discharge pipe；Second non-return valve 92 is used to prevent the coolant when the discharge pipe is opened
3 adverse current of coolant hose is arranged by the primary Ioops to fill 4 in comb to the coolant.
Specifically, primary Ioops, which fill on coolant hose 2, is provided with the first shut-off valve 81 and the first non-return valve 91, the first shut-off valve
81 for be switched on or off it is described be filled with pipeline, the first non-return valve 91 is used to prevent coolant from passing through when being filled with pipeline and opening
Primary Ioops fill 2 adverse current of coolant hose into the coolant reservoir tank 1.
Specifically, coolant, which fills on comb 4, is additionally provided with third shut-off valve 83, and third shut-off valve 83 is for being switched on or off
It is filled with pipeline and discharge pipe.
Wherein, coolant fills comb 4 and connect with reactor primary tank 6, normally transports from primary tank top cover or higher than coolant
The primary tank wall surface of row liquid level it is enterprising enter primary tank inside, avoid pipeline breaking cause primary Ioops coolant reveal the case where go out
It is existing.Coolant into primary tank fills comb and comes downwards to the heavy pump being immersed in coolant.Heavy pump suction line extends to main appearance
Device bottom.When arranging high density coolant, pipeline valve everywhere is opened, starts heavy pump, main appearance is discharged in the coolant in primary tank
Device increases coolant and conveys pump inlet pressure.When coolant conveying pump inlet pressure is met the requirements, coolant conveying is opened
Pump, is pumped to coolant reservoir tank for coolant.
Wherein, being set to the coolant delivery pump 5 that coolant fills on comb 4 is the major impetus for transporting high density coolant
Source, coolant delivery pump 5 is for pumping high density coolant into coolant reservoir tank, the arrangement height of coolant delivery pump 5
It should not be greater than the extreme higher position that coolant fills comb 4.For the continuity for guaranteeing coolant conveying, it is defeated that suitable coolant should be chosen
Send the length of pump upstream vertical section.
Wherein, the pump 7 that sinks is arranged in primary tank 6, in order to make full use of height space, heavy pump 7 preferably vertical centrifugal pump.
Heavy pump 7 is mainly used for providing the pressure head for overcoming height difference, guarantees that coolant pump entrance has minimum inlet head.Heavy pump 7 should be as far as possible
It is arranged in the bottom of primary tank 6 or the position close to bottom, to reduce the height difference of heavy pump 7 suction inlets and 6 bottom of primary tank, is convenient for
When 6 liquid level of primary tank is low, heavy pump 7 can effectively work, and heavy 71 end of pump suction pipe advantageously reduces residual as close as possible to bottom
Remaining amount of coolant.
The working principle of the primary Ioops coolant fill-drain syctem introduced below
Primary Ioops coolant is filled with: the first shutoff valve, the first reverse stop valve and third shutoff valve is opened, so that being filled with pipeline
It is connected, the coolant in coolant reservoir tank is flowed into reactor primary tank by the effect of gravity.
Primary Ioops cryogen discharge: opening the second shutoff valve, the second reverse stop valve and third shutoff valve, so that discharge
Pipeline conducting, starts heavy pump, and primary tank is discharged in the coolant in primary tank, increases the pressure of coolant conveying pump intake, when
When coolant pump conveying inlet pressure is met the requirements, coolant delivery pump is opened, coolant is pumped in coolant reservoir tank.
The fill-drain syctem of the embodiment of the present invention guarantees coolant conveying pump intake tool by the way that heavy pump is arranged in primary tank bottom
Standby minimum inlet head can be by primary Ioops coolant in the case where not influencing the normal operation of primary Ioops system and associated auxiliary systems
Liquid level is reduced to primary tank bottom welding seam height hereinafter, making the maintenance of primary tank internal unit, replacement and the maintenance of primary tank inside weld
It is achieved, while avoiding disappearing when primary tank primary Ioops coolant operates normally even primary tank bottom opening below liquid level
Lead to primary Ioops coolant loss except comb rupture is filled, into the risk for causing Core uncovering；In addition, being not in because filling comb
Rupture leads to the accident of primary Ioops coolant loss, can perform effectively second barrier function；Finally, the fill-drain syctem will not be right
Other equipment increase additional design requirement, and coolant higher for density has preferable applicability, can be close in primary Ioops
The row's of realization coolant function, can effectively prevent the diffusion of radioactivity and poisonous substance under seal ring border.
Working principle and brought beneficial effect in relation to the present embodiment please refer to the explanation of the embodiment of the present invention one,
Details are not described herein again.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of primary Ioops coolant fill-drain syctem, it is characterised in that: including refrigerant storage device, with the refrigerant storage
The primary Ioops of device connection arrange coolant hose, and the coolant connecting with primary Ioops row's coolant hose fills comb, are set to institute
State coolant fill on comb, the coolant delivery pump for pumping the coolant to the refrigerant storage device, Yi Jishe
It is placed in primary Ioops reactor primary tank, comb is filled with the coolant connect and be used to provide the described coolant and convey pump intake
The heavy pump of inlet head, wherein
The primary Ioops row coolant hose, coolant delivery pump, coolant fill comb and heavy pump constitutes primary Ioops coolant
Discharge pipe, for the coolant to be discharged into refrigerant storage device out of described reactor primary tank.
2. fill-drain syctem according to claim 1, which is characterized in that further include that primary Ioops fill coolant hose, the cooling
Agent storage device, which by the primary Ioops fills coolant hose and fills comb with the coolant, to be connect, and the primary Ioops fill coolant
What pipe, coolant filled that comb constitutes primary Ioops coolant is filled with pipeline, for by the coolant from the refrigerant storage
It is filled in device in the reactor primary tank.
3. fill-drain syctem according to claim 2, it is characterised in that:
The primary Ioops, which fill on coolant hose, is provided with the first shut-off valve and the first non-return valve,
First shut-off valve is filled with pipeline described in being used to be switched on or off,
First non-return valve be used for it is described be filled with pipeline open when, prevent coolant from filling coolant hose by the primary Ioops
Adverse current is into the refrigerant storage device.
4. fill-drain syctem according to claim 3, it is characterised in that:
It is provided with the second shut-off valve and the second non-return valve on the primary Ioops row coolant hose,
Second shut-off valve is for being switched on or off the discharge pipe；
Second non-return valve is used for when the discharge pipe is opened, and prevents the coolant from passing through primary Ioops row's cooling
Agent pipe adverse current is filled in comb to the coolant.
5. fill-drain syctem according to claim 4, it is characterised in that:
The coolant, which fills on comb, is provided with third shut-off valve, and the third shut-off valve described is filled with pipe for being switched on or off
Road and discharge pipe.
6. fill-drain syctem according to claim 5, it is characterised in that:
The coolant fills comb and is higher than the position that coolant operates normally liquid level from primary tank top cover or from primary tank wall surface
Place is set to enter inside primary tank.
7. fill-drain syctem according to claim 6, it is characterised in that:
The arrangement height of the coolant delivery pump fills the extreme higher position of comb lower than the coolant.
8. fill-drain syctem according to claim 7, it is characterised in that:
The heavy pump is vertical centrifugal pump, the heavy position for pumping the bottom for being arranged in reactor primary tank or close bottom
Place.
9. fill-drain syctem according to claim 8, it is characterised in that:
It is provided with electric heater unit and attemperator in the refrigerant storage device, is respectively used to the refrigerant storage
Device is heated and is kept the temperature, so that the coolant maintains liquid condition.
10. fill-drain syctem according to claim 9, it is characterised in that:
Coolant mass detection device and gas detection equipment, the coolant matter are additionally provided in the refrigerant storage device
Amount detecting device is used to detect the quality of the coolant, and the gas detection equipment is for detecting the refrigerant storage device
Interior gaseous mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476704.0A CN109698035A (en) | 2018-12-05 | 2018-12-05 | A kind of primary Ioops coolant fill-drain syctem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476704.0A CN109698035A (en) | 2018-12-05 | 2018-12-05 | A kind of primary Ioops coolant fill-drain syctem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109698035A true CN109698035A (en) | 2019-04-30 |
Family
ID=66230411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811476704.0A Pending CN109698035A (en) | 2018-12-05 | 2018-12-05 | A kind of primary Ioops coolant fill-drain syctem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109698035A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309154A (en) * | 1977-12-19 | 1982-01-05 | Daddario Francis E | Pumps operated by the rise and fall of water |
| US6702028B1 (en) * | 1999-06-16 | 2004-03-09 | Heggholmen Jon Kare | Apparatus and method for producing oil and gas |
| CN102282625A (en) * | 2008-11-19 | 2011-12-14 | 原子能与替代能源署 | Sfr nuclear reactor of the integrated type with improved convection operation |
| US20120305263A1 (en) * | 2011-06-01 | 2012-12-06 | Baker Hughes Incorporated | Tandem progressive cavity pumps |
| WO2014058778A1 (en) * | 2012-10-09 | 2014-04-17 | Shell Oil Company | System for downhole and surface multiphase pumping and methods of operation |
| CN105318180A (en) * | 2014-06-27 | 2016-02-10 | 安瑞科(廊坊)能源装备集成有限公司 | LNG liquid adding system |
| CN107665742A (en) * | 2017-08-21 | 2018-02-06 | 中广核研究院有限公司 | It is active with the passive naval reactor being combined meet an urgent need residual heat removal system |
| CN108511095A (en) * | 2018-03-22 | 2018-09-07 | 中广核研究院有限公司 | A kind of nuclear power plant's reactor-loop coolant fill-drain syctem |
-
2018
- 2018-12-05 CN CN201811476704.0A patent/CN109698035A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309154A (en) * | 1977-12-19 | 1982-01-05 | Daddario Francis E | Pumps operated by the rise and fall of water |
| US6702028B1 (en) * | 1999-06-16 | 2004-03-09 | Heggholmen Jon Kare | Apparatus and method for producing oil and gas |
| CN102282625A (en) * | 2008-11-19 | 2011-12-14 | 原子能与替代能源署 | Sfr nuclear reactor of the integrated type with improved convection operation |
| US20120305263A1 (en) * | 2011-06-01 | 2012-12-06 | Baker Hughes Incorporated | Tandem progressive cavity pumps |
| WO2014058778A1 (en) * | 2012-10-09 | 2014-04-17 | Shell Oil Company | System for downhole and surface multiphase pumping and methods of operation |
| CN105318180A (en) * | 2014-06-27 | 2016-02-10 | 安瑞科(廊坊)能源装备集成有限公司 | LNG liquid adding system |
| CN107665742A (en) * | 2017-08-21 | 2018-02-06 | 中广核研究院有限公司 | It is active with the passive naval reactor being combined meet an urgent need residual heat removal system |
| CN108511095A (en) * | 2018-03-22 | 2018-09-07 | 中广核研究院有限公司 | A kind of nuclear power plant's reactor-loop coolant fill-drain syctem |
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Application publication date: 20190430 |
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