CN109340184A - A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure - Google Patents
A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure Download PDFInfo
- Publication number
- CN109340184A CN109340184A CN201811106094.5A CN201811106094A CN109340184A CN 109340184 A CN109340184 A CN 109340184A CN 201811106094 A CN201811106094 A CN 201811106094A CN 109340184 A CN109340184 A CN 109340184A
- Authority
- CN
- China
- Prior art keywords
- pump
- nuclear reactor
- reactor coolant
- check valve
- pump case
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of anti-backflow pump shell structures for nuclear reactor coolant pump, comprising: pump case ontology, tube body and check valve module；Ring cavity between the outside and pump case ontology of tube body forms the first runner for being used for pumped (conveying) medium, the inside of tube body and the inner cavity of check valve module form the second flow channel for being used for pumped (conveying) medium, second flow channel is connected with first runner, wherein: the medium conveyed is sucked by first runner, it is discharged through second flow channel, the medium conveyed is radial sucking, radial discharge.The invention also discloses a kind of nuclear reactor coolant pumps, implement nuclear reactor coolant pump and its anti-backflow pump shell structure of the invention, can reduce pipe arrangement, the risk of LOCA accident is effectively reduced, improve the safety of reactor；Structurally reasonable, it is convenient to assemble, and for ease of maintenaince and safeguards.
Description
Technical field
The present invention relates to nuclear power field more particularly to a kind of nuclear reactor coolant pumps and its anti-backflow pump shell structure.
Background technique
In the prior art, nuclear reactor coolant pump (referred to as " main pump ") is the driving equipment of primary Ioops, and main function is
The flowing of primary Ioops coolant is driven, reliable operating is the important leverage that nuclear power station is continuously safely operated.
The pump case of existing nuclear reactor coolant pump generallys use volute type structure, can be continuous under the action of impeller
Pumped (conveying) medium is sucked and is discharged operation, in which: flow outlets and circulation entrance are respectively provided with corresponding pipeline and constitute one time
The pressure-bearing boundary on road.
The structure is: pipeline occupied space is big, can not form compact arrangement, and pipeline breaking is made
At LOCA(coolant loss of-coolant accident (LOCA)), the risk of accident is larger.In addition, other disclosed in the prior art have inlet and outlet runner
Pump shell structure, the usual only corresponding flow passage structure that is constituted to guide vane of design impeller can't be to the structure of pump case inlet and outlet
It is designed.Meanwhile the structure design of pump case inlet and outlet is one of the important factor in order of pump shell structure compactedness.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of nuclear reactor coolant pump and its anti-backflow pump case knot
Structure can reduce pipe arrangement, and the risk of LOCA accident is effectively reduced, and improve the safety of reactor；It is structurally reasonable, assembly
It is convenient, for ease of maintenaince and safeguard.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of for the anti-down of nuclear reactor coolant pump
Flow pump shell structure, comprising: the pump case ontology that can be connected with reactor pressure vessel；It is installed in the tube body of pump case body interior；
And be installed in the inside of pump case ontology, be connected with the one end of tube body to the check valve group that prevents medium from flowing backwards
Part；Ring cavity between the outside and pump case ontology of tube body forms the first runner for being used for pumped (conveying) medium, the inside of tube body and check
The inner cavity of valve module forms the second flow channel for being used for pumped (conveying) medium, and second flow channel is connected with first runner, in which: is conveyed
Medium is sucked by first runner, is discharged through second flow channel, and the medium conveyed is radial sucking, radial discharge.
Wherein, pump case ontology is solid forging, to eliminate in the radial institute's pumped (conveying) medium primary Ioops for sucking, being radially discharged
Pressure-bearing weld seam.
Wherein, pump case ontology includes: straight section and the L-type section on straight section in succession, and straight section and L-type section are solid forging, is used
To eliminate the pressure-bearing weld seam in the radial institute's pumped (conveying) medium primary Ioops for sucking, being radially discharged.
Wherein, check valve module includes: check valve body；Be installed in check valve body can be in certain rotation angle
The non-return valve rotated in degree range；And the first support to be fastened on check valve body in pump case inner body wall
Block, the first supporting block are connected on the inner wall of pump case ontology.
Wherein, check valve body is the cavity body structure that both ends are equipped with opening, and one end opening is to assemble hydraulic part
The first bell socket, opposite another end opening be to connection pipe body second accept socket.
Wherein, the periphery of the first bell socket is convexly equipped with trunnion, and screw passes through trunnion and is connected in the first supporting block.
Wherein, tube body is bend pipe, and bend pipe includes: elbow body and the support ring to be limited to elbow body,
In: the second supporting block and third supporting block on inner wall of the bottom of elbow body by being connected in pump case ontology are fixed,
The open side that elbow body is connected with check valve module is limited by the support ring being connected in pump case inner body wall.
Wherein, check valve module is the cavity body structure that both ends are equipped with opening, and one end opening is to assemble hydraulic part
The first bell socket, opposite another end opening be to bridge piece ontology second accept socket；Check valve module is logical
It crosses the second undertaking socket to connect with support ring, support ring limits check valve module.
Wherein, pump case ontology and reactor pressure vessel use butt welding, and inlet and outlet are by casing connection, to reduce pipe
Road arrangement；The bottom of pump case ontology is equipped with slight slope, to realize that nature empties.
The invention also discloses a kind of nuclear reactor coolant pumps.
Nuclear reactor coolant pump provided by the present invention and its anti-backflow pump shell structure, have the following beneficial effects:
The first, the ring cavity between the outside of tube body and pump case ontology forms the first runner for being used for pumped (conveying) medium, the inside of tube body
The second flow channel for being used for pumped (conveying) medium is formed with the inner cavity of check valve module, second flow channel is connected with first runner, in which: institute
The medium of conveying is sucked by first runner, is discharged through second flow channel, and the medium conveyed is radial sucking, radial discharge, structure
Characteristics of compact layout；Meanwhile pump case ontology and reactor pressure vessel use butt welding, inlet and outlet reduce pipe by casing connection
Road arrangement, is effectively reduced the risk of LOCA accident, improves the safety of reactor.
The second, the check valve module being connected with the one end of tube body is installed in the inside of pump case ontology, can prevent main pump from existing
The medium conveyed is flow backwards, and has ensured the performance of main pump.
Third, structure flexible design are reasonable, securely and reliably, and for ease of maintenaince and maintenance.
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 structural schematic diagram of the present invention for the anti-backflow pump case embodiment one of nuclear reactor coolant pump.
Fig. 2 is structural schematic diagram of the present invention for the anti-backflow pump case embodiment two of nuclear reactor coolant pump.
Fig. 3 is structural schematic diagram of the present invention for the anti-backflow pump case embodiment three of nuclear reactor coolant pump.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one referring to Fig. 1, for the present invention for the anti-backflow pump case of nuclear reactor coolant pump.
Nuclear reactor coolant pump (abbreviation main pump) in the present embodiment, includes at least: being used for nuclear reactor coolant pump
Anti-backflow pump case, the anti-backflow pump case for nuclear reactor coolant pump is connected with reactor pressure vessel.
When it is implemented, the anti-backflow pump case for nuclear reactor coolant pump includes: can be with reactor pressure vessel
Connected pump case ontology 1, the tube body 2 being installed in inside pump case ontology 1；And it is installed in the inside of pump case ontology 1, with tube body 2
One end be connected to the check valve module that prevents conveyed medium from flowing backwards；Between the outside and pump case ontology 1 of tube body 2
Ring cavity form the first runner A for being used for pumped (conveying) medium, the inner cavity formation of the inside of tube body 2 and check valve module 3 is for conveying
The second flow channel B of medium, second flow channel B are connected with first runner A, in which: and the medium conveyed is sucked by first runner A,
It is discharged through second flow channel B, the medium conveyed is radial sucking, radial discharge.
When it is implemented, pump case ontology 1 is the hollow cavity structure that both ends are equipped with opening, and after assembly is fixed, one end
Opening be located at vertical direction, the opening of the other end is located at horizontal direction.Pump case ontology 1 includes: straight section 11 and in succession in straight section
L-type section 12 on 11.Straight section 11 and L-type section 12 in the present embodiment are solid forging, and effect is: can eliminate radial suction
The pressure-bearing weld seam in institute's pumped (conveying) medium primary Ioops enter, being radially discharged, improves the safety of main pump.
Further, tube body 2 is set as bend pipe in the present embodiment, in other embodiment, can also be set to other shapes
Shape meets radial sucking and radial direction discharge is compact as long as meeting the formation cannula structure of inside socket pipe body 2 in pump case ontology 1
Arragement construction.
The specific structure of bend pipe further explained below, bend pipe include: elbow body 21 and to elbow body 21 into
The fixed support ring 22 of row support.When it is implemented, elbow body 21 is the hollow cavity structure that both ends are equipped with opening, bend pipe dress
Behind the inside for fitting over pump case ontology 1, the opening of bend pipe one end is towards vertical direction, vertical direction after assembling with pump case main body 1
Open end is set as coaxially, and the opening of the bend pipe other end is towards horizontal direction, the open end of horizontal direction after assembling with pump case main body 1
It is set as coaxial, can so reinforce the radial effect sucked and be discharged, flow conveyed homogeneous media.
Elbow body 21 is fitted by with pump case ontology 1 as flowering structure is implemented, and the bottom of elbow body 21 passes through
The second supporting block 4 and third supporting block 5 being connected on 1 inner wall of pump case ontology are fixed, and the top of elbow body 21 passes through
Support ring 22 is limited.
When it is implemented, the second supporting block 4 and third supporting block 5 are respectively in bulk, when assembly, the two passes through welding respectively
Mode be fixed on the inner wall of pump case ontology 1.The position of second supporting block 4 assembly is generally corresponding to the bending in elbow body 21
Fragment position primarily serves the effect supported vertically.It is threaded in second supporting block 4, screw is through elbow body 21
Corresponding position is simultaneously locked at the fastening that can be achieved in the threaded hole of the second supporting block 4 with the second supporting block 4.Third supporting block 5 fills
The position matched is generally corresponding to the position of 21 horizontal segment end of elbow body, and third supporting block 5 primarily serves the effect of Auxiliary support,
It can be set according to actual needs one or more.
One end of support ring 22 is fastened on the inner wall of pump case ontology 1, and the other end is held in 21 open end side of elbow body
Outer wall on.When it is implemented, the above-mentioned position limiting structure of support ring 22 can only pass through the open end side of fixed bending tube ontology 21
Realized, the junction that can also be connected by fixed bending tube ontology 21 with check valve module 3, that is, elbow body 21 with
The connected aperture position of check valve module 3 is realized which can enhance support ring 22 to bend pipe and check valve module 3
Support fastening effect.
Further, check valve module 3 includes: check valve body 31；Be installed in inside check valve body 31 can be
The non-return valve 32 rotated in certain rotation angle range；And check valve body 31 to be fastened in pump case ontology 1
The first supporting block 33 on wall, the first supporting block 33 are connected on the inner wall of pump case ontology 1, for example, by welding will
First supporting block 33 is connected on the inner wall of pump case ontology 1, is opened up in the first supporting block 33 for assembling check valve body 31
Threaded hole.When it is implemented, the first supporting block 33 can be two soil block cloddies being arranged symmetrically, it is also possible to a whole circle
Ring structure part.
In the present embodiment, check valve body 31 is the cavity body structure that both ends are equipped with opening, and one end opening is to assemble
First bell socket 311 of hydraulic part, opposite another end opening are to accept socket 312 to the second of connection pipe body 2.The
The periphery of one bell socket 311 is convexly equipped with trunnion 311a, and screw passes through trunnion 311a and is connected in what the first supporting block 33 was opened up
In threaded hole, to implement the fixation to 31 one end of check valve body.
First bell socket 311 is located at the top of check valve body 31, and the hydraulic part assembled can be the pump such as impeller
The component routinely applied in structure.Second undertaking socket 312 is located at the bottom of check valve body 31, and second accepts 312 energy of socket
It is enough to be docked with the open end side of elbow body 21, then fixed by 22 pairs of the two of support ring.
Anti-backflow pump case in the present embodiment for nuclear reactor coolant pump is assembled as follows step and is assembled, the dress
Distribution structure embody the anti-backflow pump case of nuclear reactor coolant pump structural compactness and it is convenient for safeguarding and maintenance, and
Highly-safe structural advantage.
Firstly, welding the second supporting block 4 in the bottom of pump case ontology 1, while welding third supporting block 5 and difference on it
Process screw thread；And then, bend pipe 2 is installed, bend pipe 2 and the second supporting block 4 are connected by screw to, realizes fastening；
Then, support ring 22 is installed, and support ring 22 and bend pipe 2 are welded, while finishing bend pipe 2 and 22 phase of support ring
The mating surface of bell socket even；
Further, the first supporting block 33, its mating surface of axially position, and thread mill drilling are welded；Check valve body 31 is installed,
Check valve body 31 and the first supporting block 33 are connected by screw to；Applied waterpower portion is fabricated out according to detailed programs
Part, and hydraulic part is mounted on the first bell socket 311 of check valve body 31.
In the present embodiment for nuclear reactor coolant pump anti-backflow pump case in the specific implementation, the outside of tube body 2 with
Ring cavity between pump case ontology 1 forms the first runner A for being used for pumped (conveying) medium, and the inside of tube body 2 (can also be with check valve module
3 inner cavity is common) the second flow channel B for being used for pumped (conveying) medium is formed, second flow channel B is connected with first runner A, in which: institute is defeated
The medium sent is sucked by first runner A, is discharged through second flow channel B, in this way, simplifying on the basis of realizing anti-backflow function
Structure keeps structure arrangement more compact, while also reducing the risk of LOCA accident caused by pipeline breaking.At the same time it can also
The inlet and outlet of sucking, discharge are converted by the type of hydraulic part on the first bell socket 311 of change, Jie conveyed
Matter is the radial mode for sucking, being radially discharged.
Preferably, pump case ontology 1 is attached by the way of butt welding with reactor pressure vessel.In addition, second
Road B and first runner A, that is, the knot that the radial inlet and outlet for sucking, being discharged are socket-connected by using pump case ontology 1 and tube body 2
Structure mode is implemented, and pipe arrangement can be so reduced, and realizes the structure construction of reactor compact Layout, while reducing LOCA accident
Risk.
Preferably, one section of 1 bottom of pump case ontology is equipped with slight slope 1a, to realize that nature empties, reduces because draining exists
Bottom opens up drainage hole, enhances the integral strength of pump case.
Referring to fig. 2, the embodiment two for the present invention for the anti-backflow pump case of nuclear reactor coolant pump.
The difference of the anti-backflow pump shell structure and above-described embodiment one for nuclear reactor coolant pump in the present embodiment
It is, pump case ontology 1 includes: straight section 11 and the L-type section 12 on straight section 11 in succession.Wherein, straight section 11 and L-type section 12 are difference
It is assembled after forging, the first supporting block 33 is fastened on the inner wall of L-type section 12 of pump case ontology 1, that is to say, that pump case ontology 1
Segmentation weld seam be arranged on the first supporting block 33.The effect forged respectively is: reducing forging difficulty of processing, improves material
Utilization rate, the assembly method are conducive to control quality, reduce manufacturing cost.
Embodiment three referring to Fig. 3, for the present invention for the anti-backflow pump case of nuclear reactor coolant pump.
The difference of the anti-backflow pump shell structure and above-described embodiment two for nuclear reactor coolant pump in the present embodiment
It is, the first supporting block 33 is fastened on the inner wall of straight section 11 of pump case ontology 1, that is to say, that the segmentation weld seam of pump case ontology 1
It is arranged under the first supporting block 33.The effect forged respectively is: forging difficulty of processing reduced, the utilization rate of material is improved, it should
Assembly method is conducive to control quality, reduces manufacturing cost.
Implement nuclear reactor coolant pump and its anti-backflow pump shell structure of the invention, has the following beneficial effects:
The first, the ring cavity between the outside of tube body and pump case ontology forms the first runner for being used for pumped (conveying) medium, the inside of tube body
The second flow channel for being used for pumped (conveying) medium is formed with the inner cavity of check valve module, second flow channel is connected with first runner, in which: institute
The medium of conveying is sucked by first runner, is discharged through second flow channel, and the medium conveyed is radial sucking, radial discharge, structure
Characteristics of compact layout；Meanwhile pump case ontology and reactor pressure vessel use butt welding, inlet and outlet reduce pipe by casing connection
Road arrangement, is effectively reduced the risk of LOCA accident, improves the safety of reactor.
The second, the check valve module being connected with the one end of tube body is installed in the inside of pump case ontology, and main pump can be prevented defeated
The medium sent is flow backwards, and has ensured the performance of main pump.
Third, pump case ontology are solid forging, can be eliminated in the radial institute's pumped (conveying) medium primary Ioops for sucking, being radially discharged
Pressure-bearing weld seam, improve the safety of main pump.
4th, structure flexible design is reasonable, securely and reliably, and for ease of maintenaince and maintenance.
Claims (10)
1. a kind of anti-backflow pump shell structure for nuclear reactor coolant pump characterized by comprising
The pump case ontology that can be connected with reactor pressure vessel；
It is installed in the tube body of the pump case body interior；And
Be installed in the inside of the pump case ontology, be connected with the one end of the tube body to prevent conveying medium fall
The check valve module of stream；Ring cavity between the outside of the tube body and the pump case ontology is formed for the first-class of pumped (conveying) medium
The inner cavity of road, the inside of the tube body and the check valve module forms the second flow channel for being used for pumped (conveying) medium, the second
Road is connected with the first runner, in which:
The medium conveyed is sucked by the first runner, is discharged through the second flow channel, the medium conveyed be radial sucking,
Radial discharge.
2. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as described in claim 1, which is characterized in that the pump
Shell ontology is solid forging, to eliminate the pressure-bearing weld seam in the radial institute's pumped (conveying) medium primary Ioops for sucking, being radially discharged.
3. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as described in claim 1, which is characterized in that the pump
Shell ontology includes: straight section and the L-type section on the straight section in succession, and the straight section and the L-type section are solid forging, to disappear
Except radial sucking, radially the pressure-bearing weld seam in institute's pumped (conveying) medium primary Ioops being discharged.
4. the anti-backflow pump shell structure as described in any one of claims 1-3 for nuclear reactor coolant pump, feature exist
In the check valve module includes:
Check valve body；
It is installed in the non-return valve that can be rotated in certain rotation angle range of the check valve body；And
To the first supporting block being fastened on the check valve body in the pump case inner body wall, first supporting block is solid
It is connected on the inner wall of the pump case ontology.
5. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as claimed in claim 4, which is characterized in that described inverse
Only valve body is the cavity body structure that both ends are equipped with opening, and one end opening is the first bell socket to assemble hydraulic part,
Opposite another end opening is to accept socket to the second of connection pipe body.
6. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as claimed in claim 5, which is characterized in that described the
The periphery of one bell socket is convexly equipped with trunnion, and screw passes through the trunnion and is connected in first supporting block.
7. the anti-backflow pump shell structure as described in any one of claims 1-3 for nuclear reactor coolant pump, feature exist
It is bend pipe in, the tube body, the bend pipe includes: elbow body and the support ring to be limited to the elbow body,
Wherein:
The second supporting block and third supporting block on inner wall of the bottom of the elbow body by being connected in the pump case ontology
It is fixed, the open side that the elbow body is connected with the check valve module is by being connected in the pump case inner body wall
Support ring limited.
8. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as claimed in claim 7, which is characterized in that described inverse
Only valve module is the cavity body structure that both ends are equipped with opening, and one end opening is the first bell socket to assemble hydraulic part,
Opposite another end opening is to accept socket to connect the second of the elbow body；
The check valve module is connect by the second undertaking socket with the support ring, and the support ring is to the non-return valve
Component is limited.
9. being used for the anti-backflow pump shell structure of nuclear reactor coolant pump as described in claim 1, which is characterized in that the pump
Shell ontology and reactor pressure vessel use butt welding, and inlet and outlet are by casing connection, to reduce pipe arrangement；
The bottom of the pump case ontology is equipped with slight slope, to realize that nature empties.
10. a kind of nuclear reactor coolant pump, which is characterized in that the nuclear reactor coolant pump includes such as claim 1-9
Described in any item anti-backflow pump shell structures for nuclear reactor coolant pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106094.5A CN109340184A (en) | 2018-09-21 | 2018-09-21 | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106094.5A CN109340184A (en) | 2018-09-21 | 2018-09-21 | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340184A true CN109340184A (en) | 2019-02-15 |
Family
ID=65306591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811106094.5A Pending CN109340184A (en) | 2018-09-21 | 2018-09-21 | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340184A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438025A (en) * | 2013-08-23 | 2013-12-11 | 中国核动力研究设计院 | Pump with double-layer sleeve-type inlet and outlet flow channels |
| CN207134146U (en) * | 2017-09-19 | 2018-03-23 | 中国核动力研究设计院 | A kind of bushing type flow passage structure of modularization reactor pressure-bearing type main pump |
| CN207393495U (en) * | 2017-09-19 | 2018-05-22 | 哈尔滨电气动力装备有限公司 | Small nuclear power plant core main pump |
| CN207503653U (en) * | 2017-10-27 | 2018-06-15 | 中广核研究院有限公司 | Nuclear reactor primary Ioops system and its voltage-stablizer spray system |
| WO2018114660A1 (en) * | 2016-12-20 | 2018-06-28 | KSB SE & Co. KGaA | Pump arrangement, and nuclear reactor having a pump arrangement of this type |
-
2018
- 2018-09-21 CN CN201811106094.5A patent/CN109340184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438025A (en) * | 2013-08-23 | 2013-12-11 | 中国核动力研究设计院 | Pump with double-layer sleeve-type inlet and outlet flow channels |
| WO2018114660A1 (en) * | 2016-12-20 | 2018-06-28 | KSB SE & Co. KGaA | Pump arrangement, and nuclear reactor having a pump arrangement of this type |
| CN207134146U (en) * | 2017-09-19 | 2018-03-23 | 中国核动力研究设计院 | A kind of bushing type flow passage structure of modularization reactor pressure-bearing type main pump |
| CN207393495U (en) * | 2017-09-19 | 2018-05-22 | 哈尔滨电气动力装备有限公司 | Small nuclear power plant core main pump |
| CN207503653U (en) * | 2017-10-27 | 2018-06-15 | 中广核研究院有限公司 | Nuclear reactor primary Ioops system and its voltage-stablizer spray system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3859008A (en) | Pump with offset inflow and discharge chambers | |
| CN109340183A (en) | A kind of nuclear reactor coolant pump and its pump shell structure | |
| CN102080671B (en) | Centrifugal pump | |
| CN205243867U (en) | Vortex pump | |
| CN109340184A (en) | A kind of nuclear reactor coolant pump and its anti-backflow pump shell structure | |
| CN209444616U (en) | A kind of main pump pump shell structure | |
| CN208935021U (en) | A kind of main pump pump shell structure with anti-backflow function | |
| JP4121251B2 (en) | Diagonal or axial flow pump | |
| CN107120314A (en) | Axle envelope formula core main pump pumping chamber | |
| CN208651198U (en) | A kind of high-efficiency mixed flow pump of the certainly cooling submersible motor of band | |
| RU2732655C1 (en) | Centrifugal sectional pump with two parallel flows of pumped medium | |
| CN105805046A (en) | Device for improving internal flow stability of diagonal flow pump | |
| CN206957988U (en) | Axle envelope formula core main pump pumping chamber | |
| CN113294347B (en) | Vertical double-suction pump and design method thereof | |
| CN218046548U (en) | Chemical reaction reflux device for preventing material flushing | |
| CN206996534U (en) | Anti- vortex type chemical tower | |
| EP0479532A1 (en) | Converging spout outlet nozzle on an offset pump casing | |
| CN217682289U (en) | Vertical double-suction pump with suction chamber hydraulic structure | |
| CN103206412A (en) | Elbow-shaped inlet conduit | |
| CN106337820A (en) | Water pump for nuclear power station plant | |
| CN112196827A (en) | Anti-cavitation water pump | |
| KR102578918B1 (en) | Impellerless pump for rainwater pipeline installation | |
| EP2646731B1 (en) | Turbulence free ring | |
| CN208073856U (en) | A kind of vertical long impeller of pump fixed structure | |
| US4186555A (en) | Hydraulic machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |