CN101294828A - Nucleus first-level throttling device - Google Patents
Nucleus first-level throttling device Download PDFInfo
- Publication number
- CN101294828A CN101294828A CNA2007100398837A CN200710039883A CN101294828A CN 101294828 A CN101294828 A CN 101294828A CN A2007100398837 A CNA2007100398837 A CN A2007100398837A CN 200710039883 A CN200710039883 A CN 200710039883A CN 101294828 A CN101294828 A CN 101294828A
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- China
- Prior art keywords
- ozzle
- downstream
- nozzle
- upstream
- restriction device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a nuclear grade 1 throttling gear, which comprises a throttling gear body (7), an upstream connecting pipe (6) and a downstream connecting pipe (10); the throttling gear further comprises a nozzle (4) of a cylindrical throat part (3) and an arc-shaped contracting part (5) in an inner hole (13) at the middle part of the body (7); the arc-shaped contracting part (5) of the nozzle (4) is arranged on one side of the upstream connecting pipe (6); a pressure tapping nozzle (8) is mounted on each of the two sides of the nozzle (4); the pressure tapping nozzles (8) are respectively welded and sealed at the upper and the lower parts of the body (7); and the pressure tapping nozzles (8) respectively communicate with the inner hole (13) through a small hole (9). The throttling gear has the advantages that the pressure loss calculated with the same flow and the same pipe aperture is only 30%-50% of that of the prior art, and energy consumption is reduced. Compared with throttling gears in the prior art, the structure has little possibility of deformation and better wear resistance due to the changed shape; the dirt in the fluid body is easy to be blown downstream.
Description
Technical field
The present invention relates to a kind of nuclear 1 nuclear one-stage throttling device, relate in particular to the intermediate structure in this device pipe.
Background technology
In nuclear power plant, many nuclear nuclear one-stage throttling devices have been installed.It is installed on the nuclear level pipeline, is used for measuring channel inner fluid flow.These devices are divided into " 1 grade of safety ", " 2 grades of safety ", " 3 grades of safety " from secure context.Rank with " 1 grade of safety " is the highest.
As seen from Figure 1: title is " integrated nuclear 1 nuclear one-stage throttling device " (China Patent No.: CN200420112409.4) disclose such technical scheme: comprise restriction device body 7, upstream adapter 6 and downstream adapter 10; The front end of restriction device body 7 and upstream adapter 6 are connected and seal, and the rear end of restriction device body 7 and downstream adapter 10 are connected and seal; Restriction device body 7, upstream adapter 6, downstream are taken over 10 and are had identical endoporus 13; The middle part of restriction device body 7 endoporus 13 is provided with in the annular every 12, has a cone-shaped inner hole 11 every 12 in the annular, and the small end of cone-shaped inner hole 11 is positioned at the upstream and takes over 6 one sides; The pressure ozzle 8 of good seal is housed respectively every 12 both sides in the annular of restriction device body 7, and pressure ozzle 8 is communicated with the endoporus 13 of restriction device body 7 by aperture 9.
Its advantage of such structure is: have antiseismic, simple in structure, be convenient to processing, the right alignment advantages of higher; But its shortcoming be in the restriction device body in the annular every version cause the pressure loss religion in the restriction device downstream line big, promptly lose energy consumption, and in its annular every easy deformation, cone-shaped inner hole small end through fluid wash away for a long time easy wearing and tearing, also easily the soil in the fluid is stopped in annular every the upstream.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of nuclear 1 nuclear one-stage throttling device, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: restriction device body, upstream are taken over and the downstream is taken over; The front end of restriction device body and upstream adapter are connected and seal, and the rear end of restriction device body and downstream adapter are connected and seal; Restriction device body, upstream are taken over, the downstream is taken over has identical endoporus; Also comprise: the endoporus place in the middle of the body is provided with the ozzle of circular arc constriction and cylindrical shape throat, and the circular arc constriction of ozzle is positioned at the upstream and takes over a side; The ozzle both sides are equipped with the pressure ozzle respectively, and the pressure ozzle welds and sealing with the upper and lower part of body respectively; The pressure ozzle communicates with the pipeline endoporus by aperture respectively.
Compared with prior art, the invention has the beneficial effects as follows: as calculated same flow during with identical pipeline aperture its pressure loss have only 30%～50% of prior art, saved energy consumption; Restriction device is not easy to be out of shape because of having changed shape this structure compared to prior art, the soil in more wear-resisting, the fluid is blown to the downstream easily.
Description of drawings
Fig. 1 is that prior art is examined 1 nuclear one-stage throttling device structural drawing;
Fig. 2 is a structural drawing of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As seen from Figure 2: the present invention includes: restriction device body 7, upstream adapter 6 and downstream take over 10; The front end of restriction device body 7 and upstream adapter 6 are connected and seal, and the rear end of restriction device body 7 and downstream adapter 10 are connected and seal; Restriction device body 7, upstream adapter 6, downstream are taken over 10 and are had identical endoporus 13; Also comprise: endoporus 13 places in the middle of the body 7 are provided with the ozzle 4 of circular arc constriction 5 and cylindrical shape throat 3, and the circular arc constriction 5 of ozzle 4 is positioned at the upstream and takes over 6 one sides; Ozzle 4 both sides are equipped with pressure ozzle 8 respectively, and pressure ozzle 8 welds and sealing with the upper and lower part of body 7 respectively; Pressure ozzle 8 communicates with pipeline endoporus 13 by aperture 9 respectively.
The present invention adopts and be designed with circular arc constriction and cylindrical shape throat in the body of throttling arrangement Nozzle arrangement, changed the suddenly contraction of fluid when flowing through throttling arrangement, be diffused as gradually and shrink And again diffusion after cylindrical shape throat, greatly reduced the pressure loss in the throttling arrangement downstream line; Have high temperature high voltage resistant, have high shock resistance; And have energy efficient, be not easy the distortion, anti-The characteristics such as wearing and tearing and difficult contamination.
Claims (1)
1. nuclear 1 nuclear one-stage throttling device comprises: restriction device body (7), upstream adapter (6) and downstream adapter (10); The front end of restriction device body (7) and upstream adapter (6) are connected and seal, and the rear end of restriction device body (7) and downstream adapter (10) are connected and seal; (6) are taken in restriction device body (7), upstream, the downstream is taken over (10) and had identical endoporus (13); It is characterized in that also comprising: the endoporus (13) in the middle of the body (7) locates to be provided with the ozzle (4) of circular arc constriction (5) and cylindrical shape throat (3), and the circular arc constriction (5) of ozzle (4) is positioned at the upstream and takes over (6) one sides; Ozzle (4) both sides are equipped with pressure ozzle (8) respectively, and pressure ozzle (8) welds and sealing with the upper and lower part of body (7) respectively; Pressure ozzle (8) communicates with pipeline endoporus (13) by aperture (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100398837A CN101294828A (en) | 2007-04-24 | 2007-04-24 | Nucleus first-level throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100398837A CN101294828A (en) | 2007-04-24 | 2007-04-24 | Nucleus first-level throttling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101294828A true CN101294828A (en) | 2008-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100398837A Pending CN101294828A (en) | 2007-04-24 | 2007-04-24 | Nucleus first-level throttling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101294828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466502A (en) * | 2014-12-22 | 2016-04-06 | 王子平 | Suspension dike flowmeter |
| CN108759940A (en) * | 2018-04-08 | 2018-11-06 | 江阴市节流装置厂有限公司 | A kind of adjustable flow rate-measuring device high pressure nozzle |
-
2007
- 2007-04-24 CN CNA2007100398837A patent/CN101294828A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466502A (en) * | 2014-12-22 | 2016-04-06 | 王子平 | Suspension dike flowmeter |
| CN108759940A (en) * | 2018-04-08 | 2018-11-06 | 江阴市节流装置厂有限公司 | A kind of adjustable flow rate-measuring device high pressure nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081029 |