CN206377043U - Nuclear island of nuclear power station sump pump - Google Patents
Nuclear island of nuclear power station sump pump Download PDFInfo
- Publication number
- CN206377043U CN206377043U CN201621376628.2U CN201621376628U CN206377043U CN 206377043 U CN206377043 U CN 206377043U CN 201621376628 U CN201621376628 U CN 201621376628U CN 206377043 U CN206377043 U CN 206377043U
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- China
- Prior art keywords
- nuclear
- power station
- sump pump
- nuclear island
- nuclear power
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Abstract
The utility model discloses a kind of nuclear island of nuclear power station sump pump, it includes the pump housing, rear pump cover, submersible motor, and the impeller disposed in the pump housing and mechanical seal, and impeller is provided with blade, and blade angle is less than the minimum drift angle of pollutant.Relative to prior art, the utility model nuclear island of nuclear power station sump pump has the advantages that：1) impeller uses antiwind design method, nuclear island sump pump is had antiwind, automatical cleaning ability；2) by setting water-cooling jacket, the requirement that nuclear island sump pump continuously runs 24 hours under minimum liquid level is met；3) by setting transition arc, prevent pollutant from gathering in pump housing runner, blocking；4) verified by long duration test and type approval test, not only operational efficiency is high for nuclear island sump pump, and net positive suction head is low.
Description
Technical field
The utility model belongs to technical field of nuclear power, more specifically, and the utility model is with being related to a kind of nuclear island of nuclear power station
Cheat pump.
Background technology
At present, sump pump is mainly used in the engineerings such as municipal administration, draining, flood control.With the fast development of nuclear power engineering, nuclear island
Cheating pump turns into one of essential equipment of nuclear power system.
Existing nuclear island sump pump not only has the advantages that floor space is small, convenient to install and maintain, the duration of runs is long, and
The problems such as cavitation erosion and water is not present in it, meets the sealing reliability that nuclear island sump pump pumps high temperature material, it is ensured that core
Requirement of the island sump pump to device security, reliability and performance.
But, existing nuclear island sump pump still suffers from the problem of easily causing equipment winding, block.
In view of this, it is necessory to provide a kind of automatically cleaning, without blocking, antiwind nuclear island of nuclear power station sump pump.
Utility model content
Goal of the invention of the present utility model is：Overcome the defect of prior art there is provided a kind of automatically cleaning, without blocking, it is anti-
The nuclear island of nuclear power station sump pump of winding.
In order to realize above-mentioned utility model purpose, the utility model provides a kind of nuclear island of nuclear power station sump pump, including pump
Body, rear pump cover, submersible motor, and the impeller disposed in the pump housing and mechanical seal, impeller are provided with blade, and blade angle is small
In the minimum drift angle of pollutant.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the submersible motor is located on the pump housing and impeller
Side.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the pump housing is designed by area ratio principle, with
Impeller is supporting.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the pump housing, impeller, submersible motor casing are adopted
Manufactured with dual phase steel stainless steel material, the submersible motor axle is manufactured using stainless steel material.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the pump housing cut water position is transition arc.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the submersible motor uses helixseal, outside
Plus twice mechanical seal.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the submersible motor is provided with water-cooling jacket.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, the impeller outlet width is more than outlet caliber
Half.
Improved as one kind of the utility model nuclear island of nuclear power station sump pump, nuclear island sump pump is using fixed coupling peace
Dress.
Relative to prior art, the utility model nuclear island of nuclear power station sump pump has the advantages that：1) impeller is used
Antiwind design method, makes nuclear island sump pump have antiwind, automatical cleaning ability；2) by setting water-cooling jacket, core is met
Island sump pump continuously runs the requirement of 24 hours under minimum liquid level；3) by setting transition arc, prevent pollutant in the pump housing
Gather in runner, block；4) verified by long duration test and type approval test, nuclear island sump pump have efficiency high, net positive suction head it is low,
Reliable advantage.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, the utility model nuclear island of nuclear power station sump pump and its Advantageous are imitated
Fruit is described in detail, wherein：
Fig. 1 is the structural representation of the utility model nuclear island of nuclear power station sump pump.
Fig. 2 is profile of impeller vane schematic diagram in the utility model nuclear island of nuclear power station sump pump.
Embodiment
In order that goal of the invention of the present utility model, technical scheme and its advantageous effects become apparent from, below in conjunction with
The drawings and specific embodiments, the utility model is further elaborated.It should be appreciated that described in this specification
Embodiment just for the sake of explaining the utility model, be not to limit the utility model.
Refer to shown in Fig. 1, Fig. 2, the utility model nuclear island of nuclear power station sump pump includes the pump housing 10, rear pump cover 20, diving
Motor (is not marked), and the impeller 40 of placement and mechanical seal 50 in the pump housing 10, and impeller 40 is provided with blade 404, blade peace
Put the minimum drift angle that angle is less than pollutant.
The cut water position of the pump housing 10 is transition arc, prevents pollutant from collecting polymerization in pump housing runner and blocking.
Submersible motor (not marking) is located at the pump housing 10 and the top of impeller 40, including stator 302, rotor 304 and axle 306, adopts
With helixseal, additional twice mechanical seal 50a and 50b, provided with water-cooling jacket, meet nuclear island sump pump and transported under minimum liquid level
The row requirement of 24 hours.
Impeller 40 is arranged on motor shaft by key connection.Two-stage is sealed and grease chamber constitutes annular seal space, prevents water from leaking into
Enter motor internal.The exit width of impeller 40 is more than the half in nuclear island melt pit pump discharge pipe footpath.The bottom of impeller 40 sets impeller nut
402, prevent that accidentally inverting generation comes off.
Refer to shown in Fig. 2, it is illustrated that in embodiment, impeller 40 is provided with blade, angle A is the peace of a point P on blade 404
Put angle.
According to a preferred embodiment of the present utility model, the design of nuclear island sump pump meets French Standard RCC-M marks
Quasi- standard system.
According to a preferred embodiment of the present utility model, the position such as the import and export of impeller 40 and the runner of the pump housing 10 is using wide
Passage is designed, and strengthens fluid handling capacity.
According to a preferred embodiment of the present utility model, by area ratio principle design and the supporting pump housing of impeller 40
10, to reach the hydraulic performance of excellent combination property.To the weak part reinforcement strengths of the pump housing 10 and other pressure-containing members and just
Degree, to meet the design requirement of M3 grades of equipment in RCC-M standards.
According to a preferred embodiment of the present utility model, the pump housing 10, impeller 40, submersible motor casing use ASTM
SA351 CN3MN two-phase steel makings, motor shaft uses the stainless steel makings of ASTM SA479 S32750, meets nuclear power station sump pump
Service life length, reliable requirement, can also meet the conveying of the Korrosionsmediums such as flue gas desulfurization.
According to a preferred embodiment of the present utility model, nuclear island sump pump is installed using fixed coupling, maintenance side
Just, nuclear island sump pump will not damage cable because of the reason such as tumble.
By above description, relative to prior art, the utility model nuclear island of nuclear power station sump pump has and following had
Beneficial effect：1) impeller 40 uses antiwind design method, nuclear island sump pump is had antiwind, automatical cleaning ability；2) pass through
Water-cooling jacket is set, the requirement that nuclear island sump pump continuously runs 24 hours under minimum liquid level is met；3) by setting transition circle
Arc, prevents pollutant from gathering in the runner of the pump housing 10, blocking；4) verified by long duration test and type approval test, nuclear island sump pump
Have the advantages that efficiency high, net positive suction head are low, reliable.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out appropriate change and modification.Therefore, the utility model is not limited to specific implementation disclosed and described above
Some modifications and changes of the present utility model should also be as falling into scope of the claims of the present utility model by mode.
Although in addition, used some specific terms in this specification, these terms merely for convenience of description, not to this reality
With any limitation of new composition.
Claims (9)
1. a kind of nuclear island of nuclear power station sump pump, including the pump housing, rear pump cover, submersible motor, and the impeller disposed in the pump housing and
Mechanical seal, impeller is provided with blade, it is characterised in that blade angle is less than the minimum drift angle of pollutant.
2. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the submersible motor is located at the pump housing and leaf
Wheel top.
3. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the pump housing is set by area ratio principle
Meter, it is supporting with impeller.
4. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the pump housing, impeller, submersible motor machine
Shell is manufactured using dual phase steel stainless steel material, and the submersible motor axle is manufactured using stainless steel material.
5. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the pump housing cut water position is transition circle
Arc.
6. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the submersible motor is close using spiral
Envelope, additional twice mechanical seal.
7. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the submersible motor is pressed from both sides provided with water cooling
Set.
8. nuclear island of nuclear power station sump pump according to claim 1, it is characterised in that the impeller outlet width is more than outlet
The half of caliber.
9. nuclear island of nuclear power station sump pump according to any one of claim 1 to 8, it is characterised in that nuclear island sump pump is adopted
Installed with fixed coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376628.2U CN206377043U (en) | 2016-12-15 | 2016-12-15 | Nuclear island of nuclear power station sump pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376628.2U CN206377043U (en) | 2016-12-15 | 2016-12-15 | Nuclear island of nuclear power station sump pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377043U true CN206377043U (en) | 2017-08-04 |
Family
ID=59406570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621376628.2U Active CN206377043U (en) | 2016-12-15 | 2016-12-15 | Nuclear island of nuclear power station sump pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812422A (en) * | 2019-01-11 | 2019-05-28 | 江苏泰丰泵业有限公司 | A kind of bedroom water supply pump |
-
2016
- 2016-12-15 CN CN201621376628.2U patent/CN206377043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812422A (en) * | 2019-01-11 | 2019-05-28 | 江苏泰丰泵业有限公司 | A kind of bedroom water supply pump |
| CN109812422B (en) * | 2019-01-11 | 2020-09-04 | 江苏泰丰泵业有限公司 | Horizontal cold water pump |
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