CN203223417U - Novel residual heat removal pump - Google Patents
Novel residual heat removal pump Download PDFInfo
- Publication number
- CN203223417U CN203223417U CN 201320087824 CN201320087824U CN203223417U CN 203223417 U CN203223417 U CN 203223417U CN 201320087824 CN201320087824 CN 201320087824 CN 201320087824 U CN201320087824 U CN 201320087824U CN 203223417 U CN203223417 U CN 203223417U
- Authority
- CN
- China
- Prior art keywords
- pump
- guide vane
- stator
- impeller
- heat removal
- 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.)
- Expired - Lifetime
Links
Abstract
A novel residual heat removal pump comprises a pump body, a pump cover, a guide vane and a middle cover plate, wherein the chamber formed by the pump cover and the pump body is internally provided with an impeller and the guide vane, the guide vane is fixedly connected with the middle cover plate through a screw, a guide bearing is arranged between the middle cover plate and an impeller ring, the guide vane is an oblique split type radial guide vane, and the pump body is in a torispherical shape. By using the novel residual heat removal pump, a cooling liquid flowing out of the impeller is collected, rectified, spread and energy-recovered by the guide vane, and ultimately enters into the torispherical pump body, such that kinetic energy is converted into pressure energy, more than 80 percent of radial forces are balanced, and the pump does not restricted by multiple working conditions.
Description
Technical field
The utility model relates to a kind of pump, relates in particular to a kind of novel waste heat excavationg pump that adopts oblique split type stator and torispherical pump case to combine.
Background technique
Residual heat removal pump is the important component part of nuclear power plant reactor residual heat removal system, operated by rotary motion has the screw type pumping chamber after the impeller of current residual heat removal pump, spirality pumping chamber runner processing difficulty, size shape, surface finishmentes etc. depend on casting technique, and AP1000 nuclear power station residual heat removal pump must satisfy the designing requirement of multi-operating mode operation, thereby have the residual heat removal pump of spirality pumping chamber when the off-design operating mode, can produce the size and Orientation act on the impeller all with the radial force of different working conditions change, make pump shaft be subjected to alternating stress, produce directed amount of deflection, influence working life.
Summary of the invention
The utility model provide a kind of simple in structure, intensity is high, is specially adapted to satisfy the novel waste heat excavationg pump of multi-operating mode designing requirement.
The problem of the required solution of the utility model realizes by the following technical solutions, the novel waste heat excavationg pump, comprise the pump housing, pump cover, stator and inter panel, it is characterized in that: be provided with impeller and stator in the chamber that pump cover and the pump housing form, described stator is fixedly connected with inter panel by screw, is provided with guide bearing between described inter panel and the impeller port ring; Described stator adopts radially stator of oblique split type, the described pump housing spherical form that is as the criterion.
The structure that the utility model adopts, the freezing mixture that can flow out from impeller finally enters the torispherical pump case through stator collection, rectification, diffusion, energy recovery, and kinetic energy is converted into pressure energy, can the radial force of balance more than 80%, and be not subjected to the restriction of multi-operating mode.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure 1, pump cover, 2, the pump housing, 3, guide bearing, 4, stator, 5, inter panel,
6, impeller.
Embodiment:
Below in conjunction with accompanying drawing the utility model patent is described further:
The novel waste heat excavationg pump is made up of pump cover 1, the pump housing 2, stator 4 and inter panel 5, it is characterized in that: be provided with impeller 6 and stator 4 in the chamber that pump cover 1 and the pump housing 2 form, described stator 4 is fixedly connected with inter panel 5 by screw, is provided with guide bearing 3 between described inter panel 5 and the impeller port ring; Described stator 4 adopts radially stator of oblique split type, the described pump housing 2 spherical form that is as the criterion.When specifically implementing, described stator 4 adopts radially stator of oblique split type, is convenient to processing, manufacturing, installation, maintenance, by thickening stator 4 working surfaces, makes inter panel 5 can be fixed on stator 4 blades; Freezing mixture enters the torispherical pump case after stator 4 diffusion rectifications, balanced most of radial force, has reduced the vibration of pump, makes that pump also can be than smooth running under the multi-operating mode condition.
Claims (3)
1. the novel waste heat excavationg pump is made up of pump cover (1), the pump housing (2), stator (4) and inter panel (5), it is characterized in that: be provided with impeller (6) and stator (4) in the chamber that pump cover (1) and the pump housing (2) form, described stator (4) is fixedly connected with inter panel (5) by screw, is provided with guide bearing (3) between described inter panel (5) and the impeller port ring.
2. novel waste heat excavationg pump according to claim 1 is characterized in that: described stator (4) adopts radially stator of oblique split type.
3. novel waste heat excavationg pump according to claim 1 is characterized in that: the described pump housing (2) spherical form that is as the criterion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087824 CN203223417U (en) | 2013-02-27 | 2013-02-27 | Novel residual heat removal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087824 CN203223417U (en) | 2013-02-27 | 2013-02-27 | Novel residual heat removal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223417U true CN203223417U (en) | 2013-10-02 |
Family
ID=49250421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087824 Expired - Lifetime CN203223417U (en) | 2013-02-27 | 2013-02-27 | Novel residual heat removal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223417U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821731A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Afterheat discharging pump for third-generation nuclear power technology AP1000 |
| CN103821766A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat guide-out pump for AP 1000 nuclear power technology |
| CN103821755A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat discharging pump for third-generation AP1000 advanced pressurized water reactor nuclear power station |
-
2013
- 2013-02-27 CN CN 201320087824 patent/CN203223417U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821731A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Afterheat discharging pump for third-generation nuclear power technology AP1000 |
| CN103821766A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat guide-out pump for AP 1000 nuclear power technology |
| CN103821755A (en) * | 2014-03-06 | 2014-05-28 | 大连深蓝泵业有限公司 | Normal afterheat discharging pump for third-generation AP1000 advanced pressurized water reactor nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |