CN205779943U - Core main pump jet pump - Google Patents
Core main pump jet pump Download PDFInfo
- Publication number
- CN205779943U CN205779943U CN201620533987.8U CN201620533987U CN205779943U CN 205779943 U CN205779943 U CN 205779943U CN 201620533987 U CN201620533987 U CN 201620533987U CN 205779943 U CN205779943 U CN 205779943U
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- CN
- China
- Prior art keywords
- pump
- core main
- main pump
- jet pump
- suction chamber
- 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 - Fee Related
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- Jet Pumps And Other Pumps (AREA)
Abstract
This utility model relates to a kind of core main pump jet pump, and pump is made up of nozzle, suction chamber, anemostat, blind flange and drainage tube.This core main pump jet pump is to provide chilled(cooling) water supply (CWS) to sealing of nuclear power station main pump.Under nuclear power station normally works, the drainage tube of core main pump jet pump is inoperative; whole core main pump jet pump plays the effect of cooling water pipeline; and when shutting down under operating mode, the drainage tube of core main pump jet pump introduces the high-temp liquid in pump case, just play the effect of core main pump jet pump.This utility model No leakage, and be easily installed and dismantle, the arrival end of anemostat (3) is designed to horn shape, it is easy to the collection of liquid and flowing.
Description
Technical field: this utility model relates to a kind of core main pump jet pump.
Background technology: in nuclear power station, the hundreds of kind of most of pump of pump is also the most existing, the most auxiliary including some
Helping auxiliary equipment, do not have the autonomy-oriented of oneself to design, the supporting producer of the most domestic some does not has the qualification that core main pump is supporting, institute yet
To cause what these corollary equipments also wanted under import, especially High Temperature High Pressure effect to seal supporting multi-functional of water to core main pump
Jet pump, is the most abroad limited and blockade on new techniques.Because this jet pump is placed on the inside of the blind flange of HP cooler,
The inner space of HP cooler blind flange is little, if the size of stream pump is restricted, the ability to work i.e. setting stream pump is restricted.
Summary of the invention: the purpose of this utility model is to provide simple in construction, stable performance, reliable, safe a kind of core master
Pump jet pump.The technical solution of the utility model is: a kind of core main pump jet pump pump housing by nozzle (1), suction chamber (2),
Anemostat (3), blind flange (4), drainage tube (5) form, and wherein nozzle (1), suction chamber (2), anemostat (3) are arranged on blind flange
(4) inside, nozzle (1) left end being threadedly secured in suction chamber (2), anemostat (3) is with being threadedly secured in suction chamber (2)
Right-hand member, with the aperture (7) that 12 sizes are uniform on the circumferencial direction of suction chamber (2), drainage tube (5) is on blind flange (4)
Article one, pipeline, the region that aperture (7) to suction chamber (2) is corresponding on a direction of blind flange (4) is drawn a drain
Pipe (5).
The porch of anemostat (3) is with one section of trunnion (6).
Work process of the present utility model is: as illustrated by the arrows in fig. 1, and under nuclear power station normal operation, axle envelope is injected
Water regular supply, then inject water and enter HP cooler after entering anemostat (3) by nozzle (1), and now core main pump is used
Jet pumps up the effect of pipeline, injects water and directly flows through from core main pump jet pump；And as (the core master when operating mode shut down by nuclear power station
When at pump jet pump drainage tube, valve is opened), the injection water in nozzle is too fast and make to produce inside trunnion (6) negative due to flow velocity
Pressure, now the pressure in core main pump jet pump reduces, and at this moment the water under high pressure in nuclear power station center main pump pump case is from drainage tube (5)
After middle introducing, water under high pressure enters the suction chamber (2) of core main pump jet pump, with nozzle in anemostat (3) left part trunnion (6)
(1) spray from the right-hand member of anemostat (3) after the injection water mixing in and enter HP cooler, now rise to core main pump jet pump
Effect；If in the case of injecting the completely disconnected mistake of water, the water under high pressure in core main pump pump case introduces from drainage tube (5), this
Being entered in anemostat (3) by trunnion (6) through suction chamber (2) again, enter back into HP cooler, core main pump now is used
Jet pump also only serves the effect of pipeline.
Technological merit of the present utility model with good effect is:
1, core main pump jet pump of the present utility model, structure as it is shown in figure 1, core main pump jet pump to be sleeved on high pressure cold
But, in the blind flange (4) of device, this core main pump jet pump only serves the effect of pipeline under nuclear power station normal operation, and only
Core master is just played time (axle envelope injected water volume reduces or stops supply, and pipe interior flow diminishes) when wanting nuclear power station to shut down operating mode
The effect of pump jet pump.
2, core main pump jet pump of the present utility model, structure as it is shown in figure 5, with traditional core main pump jet pump structure
Difference, the hydraulic fluid in this core main pump jet pump nozzle (1) and the fluid of being inhaled in drainage tube (5) are not at suction chamber
(2) mixing in, but mixing in the trunnion (6) in anemostat (3).I.e. the suction chamber (2) in this core main pump jet pump is no
It is the effect of mixing liquid, has been to play connection suction chamber (2) and the effect of anemostat (3) and the effect of flow type pump with injection, and spreads
The effect of mixing liquid is then played in left side head trunnion (6) of pipe (3).
3, core main pump jet pump of the present utility model, structure is as it is shown on figure 3, at the suction chamber of this core main pump jet pump
(2) having the aperture (7) that 12 sizes are uniform in, this is that the difference of needs sealed according to core main pump shaft plays regulation core main pump and uses
The effect of jet pump hydraulic fluid flow.
4, core main pump jet pump of the present utility model, structure is as it is shown in figure 1, nozzle (1) and suction chamber (2) and anemostat
(3) all use between and seal pipe thread connection, No leakage, and be easily installed and dismantle.
5, core main pump jet pump of the present utility model, structure is as it is shown in figure 1, the arrival end of anemostat (3) is designed to loudspeaker
Shape, it is easy to the collection of liquid and flowing.
6, core main pump jet pump of the present utility model, applies under high temperature and high pressure environment, material be all high temperature resistant
With high voltage bearing rustless steel.Design temperature 350 DEG C, design pressure 21MPa.
Accompanying drawing illustrates:
Fig. 1 core main pump jet pump structural representation
Fig. 2 core main pump jet pump nozzle enlarged diagram
Fig. 3 core main pump jet pump suction chamber enlarged diagram
Fig. 4 core main pump jet pump anemostat enlarged diagram
Media flow direction enlarged diagram when Fig. 5 core main pump works with jet pump
Detailed description of the invention:
Core main pump jet pump as shown in Figure 1, its structure is that pump is by nozzle 1, suction chamber 2, anemostat 3, blind flange 4 and
Drainage tube 5 forms.Wherein nozzle 1, suction chamber 2, anemostat 3 are arranged on the inside of blind flange 4, and nozzle 1 as shown in Figure 2 uses spiral shell
Stricture of vagina is fixed on the left end of suction chamber 2, and anemostat 3 use as shown in Figure 4 is threadedly secured in the right-hand member of suction chamber 2, as it is shown on figure 3,
With the aperture 7 that 12 sizes are uniform on the circumferencial direction of suction chamber 2, drainage tube 5 is a pipeline on blind flange 4, in method
On the region of aperture 7 correspondence of suction chamber 2, a drainage tube 5 is drawn on one direction of blue lid 4.
As shown in Figure 5, the porch of anemostat 3 is with one section of trunnion 6.
Claims (2)
1. core main pump jet pump, is characterized in that: the pump housing by nozzle (1), suction chamber (2), anemostat (3), blind flange (4), draw
Flow tube (5) forms, and wherein nozzle (1), suction chamber (2), anemostat (3) are arranged on the inside of blind flange (4), and nozzle (1) uses spiral shell
Stricture of vagina is fixed on the left end of suction chamber (2), anemostat (3) right-hand member being threadedly secured in suction chamber (2), the circumference of suction chamber (2)
With the aperture (7) that 12 sizes are uniform on direction, drainage tube (5) is a pipeline on blind flange (4), in blind flange (4)
A direction on draw a drainage tube (5) on region corresponding to aperture (7) to suction chamber (2).
Core main pump jet pump the most according to claim 1, is characterized in that: the porch of anemostat (3) is with one section of larynx
Pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533987.8U CN205779943U (en) | 2016-06-03 | 2016-06-03 | Core main pump jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620533987.8U CN205779943U (en) | 2016-06-03 | 2016-06-03 | Core main pump jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779943U true CN205779943U (en) | 2016-12-07 |
Family
ID=58136180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620533987.8U Expired - Fee Related CN205779943U (en) | 2016-06-03 | 2016-06-03 | Core main pump jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143534A (en) * | 2017-06-27 | 2017-09-08 | 刘攀 | A kind of quick sectional type water sprayer gas collecting apparatus |
-
2016
- 2016-06-03 CN CN201620533987.8U patent/CN205779943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143534A (en) * | 2017-06-27 | 2017-09-08 | 刘攀 | A kind of quick sectional type water sprayer gas collecting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |