CN208763988U - Segmented main pump pump case and main pump - Google Patents
Segmented main pump pump case and main pump Download PDFInfo
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- CN208763988U CN208763988U CN201821238068.3U CN201821238068U CN208763988U CN 208763988 U CN208763988 U CN 208763988U CN 201821238068 U CN201821238068 U CN 201821238068U CN 208763988 U CN208763988 U CN 208763988U
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- pump case
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- bend pipe
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Abstract
The utility model discloses a kind of segmented main pump pump case and main pump, segmented main pump pump case includes pump case main body and is arranged in the intracorporal interior bend pipe of the pump case master；The pump case main body includes the straight pipe and bend loss to connect, and the interior bend pipe is located in the bend loss；Ring cavity between the pump case main body and interior bend pipe forms external flow passage, and the channel in the interior bend pipe forms inner flow passage.Pump case ontology is divided into two sections and processed, reduced the straight section length of pump case ontology by the segmented main pump pump case of the utility model by the way of setting down processing, and pump case is made to have many advantages, such as that easy to process, quality is conducive to control, save the cost.Interior bend pipe is in the intracorporal setting of pump case master, so that the segmented main pump pump case can reduce pipeline connection length, realize reactor compact arrangement, while reducing the risk of LOCA accident by casing connection reactor pressure vessel.
Description
Technical field
The utility model relates to nuclear reactor equipment technical field more particularly to a kind of segmented main pump pump cases and main pump.
Background technique
The coolant pump (hereinafter referred to as main pump) of nuclear reactor is that primary Ioops uniquely move equipment, and main function is driving one
The flowing of circuit coolant, reliable operating are the important leverages that nuclear power station is continuously safely operated.Main pump pump case generallys use snail
Shell type structure, radial to be discharged constantly by pumped (conveying) medium by axially sucking under the action of impeller, outlet and entrance are respectively provided with pipe
The pressure-bearing boundary of road composition primary Ioops.Pipeline occupied space is big, can not form compact arrangement, and the setting of pipeline, so that its
Rupture causes the risk of LOCA (coolant loss of-coolant accident (LOCA)) accident larger.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of compact arrangement for realizing main pump and reduce pipeline
Rupture causes the segmented main pump pump case of LOCA risk and the main pump with the segmented main pump pump case.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of segmented main pump pump case, wrap
It includes pump case main body and is arranged in the intracorporal interior bend pipe of the pump case master；The pump case main body includes the straight pipe and bend pipe to connect
Section, the interior bend pipe are located in the bend loss；Ring cavity between the pump case main body and interior bend pipe forms external flow passage, described
Channel in interior bend pipe forms inner flow passage.
Preferably, the bend loss forms far from one end port of the straight pipe and is respectively communicated with the external flow passage and interior
The inlet and outlet of portion's runner.
Preferably, the court of the first end port of the interior bend pipe and one end port of the straight pipe far from the bend loss
To identical；One end port of the second port of the interior bend pipe with the bend loss far from the straight pipe towards identical.
Preferably, the bend loss is L-shaped.
Preferably, the segmented main pump pump case further includes being arranged between the interior bend pipe and bend loss, will be described interior
Bend pipe is supported on the support component in the bend loss.
Preferably, the support component includes the first supporting element, and first supporting element is connected to below the interior bend pipe
And it is fixed on the inner wall of the bend loss.
Preferably, the support component includes going back radial support ring；The interior bend pipe is arranged in the radial support ring
Outside first end port and it is connected on the inner wall of the bend loss.
Preferably, the support component further includes the second supporting element, and the bend loss is arranged in second supporting element
On inner wall and it is supported below the port of the interior bend pipe second end.
The utility model also provides a kind of main pump, including segmented main pump pump case and waterpower described in any of the above item
Component；The hydraulic part is arranged in the pump case main body straight pipe of the segmented main pump pump case and is connected on interior bend pipe；
The external flow passage of the segmented main pump pump case is connected with inner flow passage by the hydraulic part.
Preferably, the main pump further includes short sleeve；The short sleeve protrudes into the bend loss of the pump case main body and connection
The second end of the interior bend pipe.
Pump case ontology is divided into two sections by the way of setting down processing by the segmented main pump pump case of the utility model
It is processed, reduces the straight section length of pump case ontology, make pump case that there is easy to process, quality to be conducive to control, save the cost etc.
Advantage.Interior bend pipe is in the intracorporal setting of pump case master, so that the segmented main pump pump case can be held by casing connection reactor pressure
Device reduces pipeline connection length, realizes reactor compact arrangement, while reducing the risk of LOCA accident.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the schematic diagram of the section structure of the segmented main pump pump case of an embodiment of the present invention.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the segmented main pump pump case of an embodiment of the present invention, (main for nuclear reactor coolant pump
Pump) comprising pump case main body 10 and the interior bend pipe 20 being arranged in pump case main body 10.Between pump case main body 10 and interior bend pipe 20
Ring cavity form external flow passage 101, the channel in interior bend pipe 20 forms inner flow passage 102.
Pump case main body 10 includes the straight pipe 11 and bend loss 12 to connect, and the setting of bend loss 12 reduces pump case main body 10
Straight section length.Straight pipe 11 and bend loss 12 is made using setting down processing method in pump case main body 10, then by by the two
Welding forms whole pump case main body 10.It is opposite that two ports of pump case main body 10 are located at straight pipe 11 and bend loss 12
Port.
In the present embodiment, bend loss 12 is L-shaped.1 ° -3 ° of slight slope is arranged in the traversing section of 12 lower section of bend loss, realizes
Naturally it empties, reduces and open up drainage hole because of draining, enhance the integral strength of pump case.
Interior bend pipe 20 is located in bend loss 12.In bend loss 12, interior bend pipe 20 is in the corner of bend loss 12, interior curved
The crooked radian of pipe 20 and the crooked radian of corner are roughly the same.
Interior bend pipe 20 has the first end and second end that can connect.The parallel bend loss of extending direction of interior 20 first end of bend pipe
The vertical section of 12 connection straight pipes 11, one end port of the port of the first end with straight pipe 11 far from bend loss 12 towards phase
Together.The traversing section of the parallel bend loss 12 of extending direction of interior 20 second end of bend pipe, the second port and bend loss 12 are far from straight tube
One end port of section 11 towards identical.External flow passage 101 along interior bend pipe 20 second end and bend loss 12 traversing section it
Between annular chamber extend to the annular chamber between the first end of interior bend pipe 20 and the vertical section of bend loss 12 extension.
In the segmented main pump pump case of the utility model, bend loss 12 forms difference far from one end port of straight pipe 11
It is connected to the inlet and outlet 100 of external flow passage 101 and inner flow passage 102.Coolant enters external flow passage 101, edge from the inlet and outlet 100
External flow passage 101 circulate and (as shown by arrows) and enter inner flow passage 102 from the first end port of interior bend pipe 20, finally again from
100 outflow inner flow passage 102 (as shown by arrows) of inlet and outlet realizes radial sucking, the radial direction discharge function of main pump.
Further, the segmented main pump pump case of the utility model further include setting interior bend pipe 20 and bend loss 12 it
Between, the support component that interior bend pipe 20 is supported in bend loss 12.
Wherein, support component may include the first supporting element 30.For the placement direction of the pump case shown in Fig. 1, the first support
Part 30 is connected to interior 20 lower section of bend pipe and is fixed on the inner wall of bend loss 12, and interior bend pipe 20 is supported and fixed on bend loss 12
In.Interior bend pipe 20 can be locked on the first supporting element 30 by components such as bolts, convenient for disassembly and assembly.First supporting element 30 may include one
A or multiple supporting blocks being spaced apart, are fixed on bend loss 12 with welding manner.
Support component may also include radial support ring 40.The first end port of interior bend pipe 20 is arranged in radial support ring 40
It outside and is connected on the inner wall of bend loss 12, the upper part of interior pipeline section 20 is positioned.
Support component may also include the second supporting element 50, and the second supporting element 50 is arranged on the inner wall of bend loss 12 and props up
Support can be used as the Auxiliary support of the first supporting element 50 below the port of interior 20 second end of bend pipe.Second supporting element 50 can be by one
A or multiple supporting blocks are constituted.
With reference to Fig. 1, the main pump of an embodiment of the present invention, including above-mentioned segmented main pump pump case and waterpower portion
Part 60.Hydraulic part 60 is arranged in 10 straight pipe 11 of pump case main body of segmented main pump pump case and is connected on interior bend pipe 20.
The first end port of interior bend pipe 20 can be used as bell socket, and the lower part convenient for hydraulic part 60 is inserted.
External flow passage 101 is connected with inner flow passage 102 by hydraulic part 60.The structures such as including impeller of hydraulic part 60
Coolant in external flow passage 101 is guided to inner flow passage 102 when work by part.
The main pump of the utility model may also include motor (not shown), be mounted on 12 top of straight pipe, connection driving waterpower
The operation of component 60.
The main pump of the utility model may also include short sleeve 70.Short sleeve 70 protrudes into the curved of pump case main body from inlet and outlet 100
Pipeline section 12 and the second end for connecting interior bend pipe 10.At inlet and outlet 100, which is separated into for cooling by short sleeve 70
Agent enters the import of external flow passage 101, for the outlet of coolant outflow inner flow passage 102；Outlet is located at import inner ring.
One end port of the bend loss 12 far from straight pipe 11 and reactor pressure vessel weld, and cooperation short sleeve 70 realizes master
The connection of pump and reactor pressure vessel shows coolant and circulates in the two, and reduces between main pump and reactor pressure vessel
Pipeline connection length, realize compact arrangement.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of segmented main pump pump case, which is characterized in that including pump case main body (10) and be arranged in the pump case main body
(10) the interior bend pipe (20) in；The pump case main body (10) includes the straight pipe (11) and bend loss (12) to connect, described interior curved
Pipe (20) is located in the bend loss (12)；Ring cavity between the pump case main body (10) and interior bend pipe (20) forms external flow passage
(101), the channel in the interior bend pipe (20) forms inner flow passage (102).
2. segmented main pump pump case according to claim 1, which is characterized in that the bend loss (12) is far from the straight tube
One end port of section (11) forms the inlet and outlet (100) for being respectively communicated with the external flow passage (101) and inner flow passage (102).
3. segmented main pump pump case according to claim 1, which is characterized in that the first end port of the interior bend pipe (20)
One end port with the straight pipe (11) far from the bend loss (12) towards identical and concentric；The interior bend pipe (20)
One end port of second port and the bend loss (12) far from the straight pipe (11) towards identical and concentric.
4. segmented main pump pump case according to claim 1, which is characterized in that the bend loss (12) is L-shaped.
5. segmented main pump pump case according to claim 1-4, which is characterized in that the segmented main pump pump case
Further include being arranged between the interior bend pipe (20) and bend loss (12), the interior bend pipe (20) is supported on the bend loss
(12) support component in.
6. segmented main pump pump case according to claim 5, which is characterized in that the support component includes the first supporting element
(30), first supporting element (30) is connected to below the interior bend pipe (20) and is fixed on the inner wall of the bend loss (12)
On.
7. segmented main pump pump case according to claim 6, which is characterized in that the support component includes going back radial support
Ring (40)；The radial support ring (40) is arranged outside the first end port of the interior bend pipe (20) and is connected to the bend loss
(12) on inner wall.
8. segmented main pump pump case according to claim 6, which is characterized in that the support component further includes the second support
Part (50), second supporting element (50) are arranged on the inner wall of the bend loss (12) and are supported on the interior bend pipe (20)
Below the port of second end.
9. a kind of main pump, which is characterized in that including the described in any item segmented main pump pump cases of claim 1-8 and waterpower
Component (60)；The hydraulic part (60) is arranged in pump case main body (10) straight pipe (11) of the segmented main pump pump case simultaneously
It is connected on interior bend pipe (20)；The external flow passage (101) and inner flow passage (102) of the segmented main pump pump case pass through the water
Power component (60) is connected.
10. main pump according to claim 9, which is characterized in that the main pump further includes short sleeve (70)；The short sleeve
(70) it protrudes into the bend loss (12) of the pump case main body (10) and connects the second end of the interior bend pipe (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238068.3U CN208763988U (en) | 2018-08-01 | 2018-08-01 | Segmented main pump pump case and main pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238068.3U CN208763988U (en) | 2018-08-01 | 2018-08-01 | Segmented main pump pump case and main pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763988U true CN208763988U (en) | 2019-04-19 |
Family
ID=66130273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821238068.3U Active CN208763988U (en) | 2018-08-01 | 2018-08-01 | Segmented main pump pump case and main pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763988U (en) |
-
2018
- 2018-08-01 CN CN201821238068.3U patent/CN208763988U/en active Active
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