CN201407385Y - Nuclear class-2 straight-through diaphragm valve - Google Patents
Nuclear class-2 straight-through diaphragm valve Download PDFInfo
- Publication number
- CN201407385Y CN201407385Y CN2009201543832U CN200920154383U CN201407385Y CN 201407385 Y CN201407385 Y CN 201407385Y CN 2009201543832 U CN2009201543832 U CN 2009201543832U CN 200920154383 U CN200920154383 U CN 200920154383U CN 201407385 Y CN201407385 Y CN 201407385Y
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- valve
- diaphragm
- nuclear
- valve body
- barrier film
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Abstract
The utility model relates to the field of reactor system design and particularly discloses a nuclear class-2 straight-through diaphragm valve. The diaphragm valve adopts a elliptical diameter-reducingstraight-through valve body, which has small flow resistance coefficient and low valve pressure drop and greatly reduces the system loss. A nuclear-class slot-embedded diaphragm is adopted to preventthe inward/outward leakage of the valve, achieve the positioning function and the auxiliary seal function, and ensure good safety. A valve cover is provided with a pressure-relief structure which protects the diaphragm against the adverse effect of the pressure generated by the compressed gas at the upper part of the diaphragm, thereby prolonging the service life.
Description
Technical field
The utility model belongs to the reactor system design field, is specifically related to a kind of membrane valve.
Background technique
Nuclear secondary straight way diaphragm valve is a million kilowatt nuclear power station reactor system critical valves, and working medium is based on radioactive liquid waste, waste gas.The membrane valve of prior art, general easy problems such as aged deterioration, Security are not high, the life-span is short, the most dependence on import of this series products that uses in the present domestic nuclear power field of occurring.
Summary of the invention
The purpose of this utility model provides that a kind of technical requirements, the system loss that can satisfy the nuclear power plant reactor system is low, Security good, the nuclear secondary straight way diaphragm valve of long service life.
The technical solution of the utility model is as follows:
A kind of nuclear secondary straight way diaphragm valve, it comprises valve body, and valve body is provided with septum assembly, and septum assembly is provided with valve gap, valve gap is provided with valve rod, wherein: described valve body is oval undergauge straight-through type valve body, and valve flowing channel is oval undergauge structure, and the valve downstream inlet is circular cross-section, the valve lumen fades to oval cross section, the lower exit circular cross-section, runner integral body is streamlined, and flange is provided with groove embedding structure in the valve body; The barrier film of described septum assembly and spool are bonding by groove embedding structure, flange packing ring in being provided with in the septum assembly, and middle flange packing ring is provided with groove embedding structure; Described valve gap is provided with the appearance plenum chamber.
In above-mentioned nuclear secondary straight way diaphragm valve, the barrier film on the described septum assembly is that groove is embedded in the barrier film on the spool.
Useful technique effect of the present utility model: adopt oval undergauge straight-through type valve body, flow resistance coefficient is little, and the valve pressure drop is little, and system loss reduces greatly; Adopt nuclear level groove embedding formula barrier film, prevent the inside and outside leakage of valve, realize location and auxiliary seal function, Security is good; Valve gap design has the appearance laminated structure, avoid valve opening after, the pressure that the compression of diaphragm upper gas produces causes negative effect to the diaphragm life-span, long service life.
Description of drawings
Fig. 1 is a nuclear secondary straight way diaphragm valve structural representation provided by the utility model;
Fig. 2 is the valve body structure schematic representation of nuclear secondary straight way diaphragm valve provided by the utility model;
Fig. 3 is the membrane configuration schematic representation of nuclear secondary straight way diaphragm valve provided by the utility model;
Among the figure: 1. valve body, 2. septum assembly, 3. barrier film 4. holds plenum chamber, 5. valve gap, 6. groove embedding structure, 7. valve rod, 8. in flange packing ring, 9. groove embedding structure.
Embodiment
As Fig. 1～shown in Figure 4, nuclear secondary straight way diaphragm valve comprises valve body 1, and septum assembly 2 is installed on the valve body 1, and valve gap 5 is installed on the septum assembly 2, and valve rod 7 is installed on the valve gap 5.Valve body 1 is oval undergauge straight-through type valve body, and valve body 1 runner is oval undergauge structure, and the valve downstream inlet is circular cross-section, and the valve lumen fades to oval cross section, the lower exit circular cross-section, and runner integral body is streamlined; The barrier film 3 of described septum assembly 2 is bonding with spool, and have groove embedding structure 6 grooves on the barrier film 3 and be embedded on the spool,, flange packing ring 8 in being equipped with in the septum assembly 2 has groove embedding structure 9 on the middle flange packing ring 8; Be equipped with in the valve gap 5 and hold plenum chamber 4, barrier film 3 materials are ethylene propylene diene rubber.
The runner of valve body 1 adopts the oval undergauge structure of straight-through type: valve downstream inlet circular cross-section, by the pole axis reducing, fade to oval cross section to the valve lumen, and transit to the lower exit circular cross-section again, runner integral body is streamlined.Streamline channel is compared weir diaphragm valve runner pattern, and flow resistance coefficient is little, and the valve pressure drop is little, can reduce system loss.This structure is convenient to reduce the keying stroke under the prerequisite that satisfies the requirement of valve negotiability, improves the life-span of barrier film 3.
As shown in Figure 4, valve gap 5 design has the plenum chamber 4 of appearance, avoid valve opening after, the pressure that the compression of diaphragm upper gas produces causes negative effect to the diaphragm life-span.
The designed membrane valve of the utility model is a nuclear safety secondary valve, be foundation with RCC-M 2000 editions with 2000 addendum during design, valve is carried out Stress calculation, analysis of natural vibration frequency, with the equivalent static force method valve dangerous section carried out the antidetonation analysis, guarantee that from point of theory valve can bear design load and the maneuvering load of nuclear power plant in the phase in longevity, and the border not loss of function of complete sum that can keep-up pressure.
In addition, the valve model machine carries out a series of nuclear level evaluation tests by ASME-QME-1-2002, comprises life test, the test of end pipeline reaction load under cold cycle test, heat cycle test, cold-hot alternative test, the simulated condition; And finish the mensuration of flow coefficient; Test result meets design requirement fully.
Claims (2)
1. examine the secondary straight way diaphragm valve for one kind, it comprises valve body (1), valve body (1) is provided with septum assembly (2), and septum assembly (2) is provided with valve gap (5), and valve gap (5) is provided with valve rod (7), it is characterized in that: described valve body (1) is oval undergauge straight-through type valve body, valve body (1) runner is oval undergauge structure, and the valve downstream inlet is circular cross-section, and the valve lumen fades to oval cross section, the lower exit circular cross-section, runner integral body is streamlined; The barrier film (3) of described septum assembly (2) is bonding by groove embedding structure (6) with spool, flange packing ring (8) in being provided with in the septum assembly (2), and middle flange packing ring (8) is provided with groove embedding structure (9); Described valve gap (5) is provided with and holds plenum chamber (4).
2. nuclear secondary straight way diaphragm valve as claimed in claim 1 is characterized in that: the barrier film (3) on the described septum assembly (2) is embedded in barrier film on the spool for groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201543832U CN201407385Y (en) | 2009-05-22 | 2009-05-22 | Nuclear class-2 straight-through diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201543832U CN201407385Y (en) | 2009-05-22 | 2009-05-22 | Nuclear class-2 straight-through diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407385Y true CN201407385Y (en) | 2010-02-17 |
Family
ID=41678320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201543832U Expired - Lifetime CN201407385Y (en) | 2009-05-22 | 2009-05-22 | Nuclear class-2 straight-through diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407385Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527811A (en) * | 2012-07-05 | 2014-01-22 | 上海阀门五厂有限公司 | Electric rubber lining diaphragm valve |
| CN106870761A (en) * | 2017-04-17 | 2017-06-20 | 上海阀门五厂有限公司 | It is a kind of reduce in flange fastener screw-down torque new types of diaphragm |
| CN106885011A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | One seed nucleus level manual diaphragm valve |
| CN106885010A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | The rigidly connected middle flange arrangement component of flange in a kind of achievable diaphragm valve |
| CN108506504A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Gas ratio valve and gas utensil |
| CN110185816A (en) * | 2019-06-28 | 2019-08-30 | 上海阀门五厂有限公司 | Heavy caliber nuclear leve M type through type electric diaphragm valve |
| CN110220020A (en) * | 2018-03-01 | 2019-09-10 | 罗伯特·博世有限公司 | Diaphragm for flow valve |
-
2009
- 2009-05-22 CN CN2009201543832U patent/CN201407385Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527811A (en) * | 2012-07-05 | 2014-01-22 | 上海阀门五厂有限公司 | Electric rubber lining diaphragm valve |
| CN108506504A (en) * | 2017-02-28 | 2018-09-07 | 芜湖美的厨卫电器制造有限公司 | Gas ratio valve and gas utensil |
| CN106870761A (en) * | 2017-04-17 | 2017-06-20 | 上海阀门五厂有限公司 | It is a kind of reduce in flange fastener screw-down torque new types of diaphragm |
| CN106885011A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | One seed nucleus level manual diaphragm valve |
| CN106885010A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | The rigidly connected middle flange arrangement component of flange in a kind of achievable diaphragm valve |
| CN110220020A (en) * | 2018-03-01 | 2019-09-10 | 罗伯特·博世有限公司 | Diaphragm for flow valve |
| CN110185816A (en) * | 2019-06-28 | 2019-08-30 | 上海阀门五厂有限公司 | Heavy caliber nuclear leve M type through type electric diaphragm valve |
| CN110185816B (en) * | 2019-06-28 | 2024-05-14 | 上海阀门五厂有限公司 | Large-caliber nuclear grade M-shaped straight-through type electric diaphragm valve |
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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: 20100217 |
|
| CX01 | Expiry of patent term |