CN206129622U - A condensation drainage pump for nuclear power station - Google Patents
A condensation drainage pump for nuclear power station Download PDFInfo
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- CN206129622U CN206129622U CN201620977893.XU CN201620977893U CN206129622U CN 206129622 U CN206129622 U CN 206129622U CN 201620977893 U CN201620977893 U CN 201620977893U CN 206129622 U CN206129622 U CN 206129622U
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- pump
- pump shaft
- nuclear power
- power station
- bearing
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Abstract
The utility model relates to a condensation drainage pump for nuclear power station, including the pump body, pump cover and pump shaft, the outer surface set axle sleeve of pump shaft, the one end of pump shaft sets up the pump body, and the pump body and pump cover adopt cartridge -type mechanical seal structural formation sealing chamber, the impeller sets up in the sealing chamber and links to each other with the one end of pump shaft, and the motor is connected through extension diaphragm coupling to the other end of pump shaft, and the cover is equipped with the bearing body on the pump shaft, is equipped with antifriction bearing I and antifriction bearing II between bearing body and the pump shaft. The utility model discloses not only satisfy pump performance's requirement, improve a lot wide application in nuclear power station to the vibration of system with stable simultaneously.
Description
Technical field
The present invention relates to a kind of pump, more particularly to a kind of condensation drainage pump for nuclear power station.
Background technology
Condensation drainage pump be by the saturation condensate on the ground such as low-pressure heater, steam air heater or drain tank be transported to oxygen-eliminating device or
Elsewhere, deoxygenation speed is accelerated.
What drainage pump was conveyed is the water of high-quality, if without drainage pump, low plus hydrophobic will be led in condenser, medium
Temperature is high, and so the vacuum of unit can be had an impact, and declines vacuum, reduces unit operation efficiency.
The content of the invention
The present invention is directed to above-mentioned problems of the prior art, there is provided a kind of condensation drainage pump for nuclear power station,
Solve the problems, such as to be also easy to produce in prior art unit vacuum decline, operational efficiency it is low.
Technical scheme is as follows：
For the condensation drainage pump of nuclear power station, including the pump housing, pump cover and pump shaft, the outer surface suit axle sleeve of pump shaft, pump shaft
One end the pump housing is set, the pump housing and pump cover form closed chamber using cartridge mechanical seal；It is indoor that impeller is arranged on sealing
And be connected with one end of pump shaft, the other end of pump shaft connects motor by lengthening diaphragm coupling, and bearing body is set with pump shaft,
Rolling bearing I and rolling bearing II is provided between bearing body and pump shaft.
Equipped with casing ring and impeller ring between the described pump housing and impeller.
Described bearing body two ends are respectively provided with bearing gland I, bearing gland II, bearing gland I's and bearing gland II
Outside is equipped with dust pan.
Described cartridge mechanical seal is that sealing member is arranged on the periphery wall of axle sleeve, and sealing gland passes through bolt
Nut is fixed on pump cover.
The described pump housing is double volute chamber structures, single stage single suction cantilever type arrangement.
Advantages of the present invention effect is as follows：
1st, structure reliability, performance meets design requirement.
2nd, mechanical seal reliability, will not leak；Long service life, maintenance cycle extends, and uses manpower and material resources sparingly.
3rd, axle sleeve will not wear and tear, and will not produce friction, saves energy；
In sum, solve the problems, such as that nuclear power plant for many years condenses drainage pump and leaves, not only meet wanting for pump performance
Ask, while vibration to system and stably improving a lot, be widely used in nuclear power station.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure, 1, the pump housing, 2, pump cover, 3, casing ring, 4, impeller, 5, pump shaft, 6, axle sleeve, 7, impeller nut, 8, leaf
Wheel sealing ring, 9, throat's bushing, 10, sealing member, 11, sealing gland, 12, bolt, 13, nut, 14, bearing body, 15, the axis of rolling
Hold I, 16, rolling bearing II, 17, dust pan, 18, bearing gland I, 19, bearing gland II, 20, lengthen diaphragm coupling.
Specific embodiment
Referring to the drawings, in conjunction with specific embodiments, the present invention is described in detail.
Embodiment
As shown in figure 1, for the condensation drainage pump of nuclear power station, pumped (conveying) medium is condensed water, including the pump housing 1, pump cover 2 and pump
Axle 5, the outer surface suit axle sleeve 6 of pump shaft, one end of pump shaft 5 arranges the pump housing 1, and the pump housing 1 and pump cover 2 adopt integrated mechanical sealing
Structure forms closed chamber；Impeller 4 be arranged on sealing it is indoor and with one end of pump shaft 5, be connected with impeller nut 7, pump shaft 5 it is another
End connects motor by lengthening diaphragm coupling 20, and bearing body 14 is set with pump shaft 5, and rolling is provided between bearing body 14 and pump shaft
Dynamic bearing I15 and rolling bearing II16, bearing assembly is supported using rolling bearing I, and residual axial force is born by rolling bearing II.
The two ends of bearing body 14 are respectively provided with bearing gland I18, bearing gland II19, are all provided with the outside of bearing gland I and bearing gland II
There is dust pan 17, can both prevent dust or moisture from entering, oily leakage can be prevented again.
Equipped with casing ring 3 and impeller ring 8 between the described pump housing and impeller, larynx is housed between pump cover and impeller
Portion's bushing 9.
Described cartridge mechanical seal is that sealing member 10 is arranged on the periphery wall of axle sleeve, and sealing gland 11 passes through
Bolt 12, nut 13 are fixed on pump cover；Sealing is carried out from flushing by pump discharge liquid.
The described pump housing is double volute chamber structures, single stage single suction cantilever type arrangement, axially suction, vertical to spue, installation side
Formula is foot support.
The condensation drainage pump considers pump cavitation performance, the pump housing, pump cover, impeller material be the good martensite of anti-cavitation performance not
Rust steel ZG1Cr13NiMo.The heavy in section mechanical performance of the material, Statical pattern toughness and under water fatigue behaviour is all relatively good, together
When also have good anti-cavitation performance and welding performance, be a kind of excellent hydraulic turbine, Pump parts material.
Condensing drainage pump parameter is, flow：340 m3/h；Lift：32m；Efficiency：83%；Rotating speed：1470 r/min；Cavitation
Surplus：2.6m.
Claims (5)
1. the condensation drainage pump of nuclear power station is used for, it is characterised in that including the pump housing, pump cover and pump shaft, the outer surface suit axle of pump shaft
Set, one end of pump shaft arranges the pump housing, and the pump housing and pump cover form closed chamber using cartridge mechanical seal；Impeller is arranged on close
Envelope is indoor and is connected with one end of pump shaft, and the other end of pump shaft connects motor by lengthening diaphragm coupling, is set with pump shaft
Bearing body, is provided with rolling bearing I and rolling bearing II between bearing body and pump shaft.
2. the condensation drainage pump for nuclear power station according to claim 1, it is characterised in that the described pump housing and impeller it
Between equipped with casing ring and impeller ring.
3. the condensation drainage pump for nuclear power station according to claim 1, it is characterised in that described bearing body two ends point
Not Zhuan You bearing gland I, bearing gland II, be equipped with dust pan on the outside of bearing gland I and bearing gland II.
4. the condensation drainage pump for nuclear power station according to claim 1, it is characterised in that described packaging type machinery is close
Seal structure is that sealing member is arranged on the periphery wall of axle sleeve, and sealing gland is fixed on pump cover by bolt and nut.
5. the condensation drainage pump for nuclear power station according to claim 1, it is characterised in that the described pump housing is double whirlpools
Cell structure, single stage single suction cantilever type arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977893.XU CN206129622U (en) | 2016-08-30 | 2016-08-30 | A condensation drainage pump for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977893.XU CN206129622U (en) | 2016-08-30 | 2016-08-30 | A condensation drainage pump for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129622U true CN206129622U (en) | 2017-04-26 |
Family
ID=58565331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620977893.XU Active CN206129622U (en) | 2016-08-30 | 2016-08-30 | A condensation drainage pump for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129622U (en) |
-
2016
- 2016-08-30 CN CN201620977893.XU patent/CN206129622U/en active Active
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