CN111043381A - Nuclear two-stage DC electric parallel seat gate valve - Google Patents
Nuclear two-stage DC electric parallel seat gate valve Download PDFInfo
- Publication number
- CN111043381A CN111043381A CN201811188468.2A CN201811188468A CN111043381A CN 111043381 A CN111043381 A CN 111043381A CN 201811188468 A CN201811188468 A CN 201811188468A CN 111043381 A CN111043381 A CN 111043381A
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- CN
- China
- Prior art keywords
- valve
- nuclear
- direct current
- flashboard
- stage
- 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.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention belongs to a gate valve, and particularly relates to a nuclear two-stage direct current electric parallel seat gate valve. The utility model provides a nuclear second grade direct current electronic parallel seat gate valve, wherein, includes the valve body, is equipped with the valve gap on the valve body, is equipped with the valve rod in the valve body, and the valve rod runs through valve gap and direct current electric actuator fixed connection, sets up the support between direct current electric actuator and valve gap. By the invention, the electrically operated valve in the related system of the nuclear power station can select a direct current power supply as a power source and can be used in the related system of the nuclear power station together with the electrically operated valve using an alternating current power supply as the power source, thereby ensuring that the nuclear power station is safer to operate.
Description
Technical Field
The invention belongs to a gate valve, and particularly relates to a double-wedge parallel double-gate-plate gate valve which is applied to the nuclear safety second level of Hualong I, meets the requirement of 1A class earthquake resistance and adopts a direct-current electric device.
Background
"Hualongyi" is the third generation nuclear power machine type which is researched and designed by adopting the international highest safety standard, and the safety performance index of the Hualongyi reaches the advanced level of the international third generation nuclear power technology.
The direct-current electric valve is mainly applied to systems for nuclear power station reactor cavity water injection cooling, passive containment heat export and the like. The conventional electric valve usually uses an alternating current power supply as a power source, and the direct current electric gate valve can control the opening and closing of the valve through the direct current power supply, so that the electric valve of the nuclear power station related system has the selection of various power sources, and the electric valve uses the alternating current power supply as the power source to act together with the nuclear power station related system, thereby ensuring the operation of the nuclear power station to be safer.
The Hualong I nuclear two-stage direct current electric parallel seat gate valve adopts a direct current electric device to control the opening and closing actions of the valve. Compared with an alternating current electric device, the direct current electric device is heavy in weight, large in appearance and eccentric size, and the whole valve needs to meet the anti-seismic requirements of anti-seismic 1A class and 6g acting in three directions, namely, the anti-seismic performance of the valve is guaranteed with high requirements.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a nuclear two-stage direct current electric parallel seat gate valve.
The invention is realized by the following steps: the utility model provides a nuclear second grade direct current electronic parallel seat gate valve, wherein, includes the valve body, is equipped with the valve gap on the valve body, is equipped with the valve rod in the valve body, and the valve rod runs through valve gap and direct current electric actuator fixed connection, sets up the support between direct current electric actuator and valve gap.
The nuclear two-stage direct current electric parallel seat gate valve is characterized in that the valve rod is fixedly connected with the gate plate at the tail end of the valve body part, and the gate plate is fixed on the valve seat through the gate plate frame.
According to the nuclear secondary direct current electric parallel seat gate valve, the wedge-shaped block is arranged between the gate plate frame and the gate plate.
The nuclear two-stage direct current electric parallel seat gate valve is characterized in that the support is a cylindrical support, and reinforcing ribs are arranged on two sides of the cylindrical support.
The nuclear two-stage direct current electric parallel seat gate valve is characterized in that the direct current electric device is a direct current electric device for controlling the opening and closing of the valve.
The nuclear secondary direct current electric parallel seat gate valve comprises a gate plate, a wedge block, a valve rod, a valve seat and a valve seat, wherein the gate plate and the wedge block are of a double-wedge-block parallel double-gate plate structure, the gate plate assembly is formed by two gate plates, an upper wedge block and a lower wedge block, and the valve rod axial force is transmitted to a gate plate-valve seat sealing surface through the two wedge blocks, so that a medium cut-off function is realized.
The invention has the following remarkable effects: (1) the medium shutoff valve adopts a double-wedge-block parallel double-gate structure, a gate plate component consists of two gate plates and an upper wedge block and a lower wedge block (a gate plate frame and a wedge block), and the axial force of a valve rod is transmitted to a gate plate-valve seat sealing surface through the two wedge blocks, so that the medium shutoff function is realized; (2) the nuclear secondary direct-current electric parallel seat gate valve for the Hualong I adopts a direct-current electric device, so that electric valves of related systems of the nuclear power station have various power source selections, and the nuclear power station is safer to operate; (3) the support adopts a cylindrical support, reinforcing ribs are distributed on two sides of the cylindrical support, and the rotary inertia, the bending modulus and the sectional area of the dangerous section of the cylindrical support are larger, so that the valve has better shock resistance.
Drawings
FIG. 1 is a diagram of the profile of a nuclear secondary DC electric parallel seat gate valve;
FIG. 2 is a diagram of a nuclear secondary DC electric parallel seat gate valve;
in the figure: 1, a valve body; 2, a valve cover; 3, a valve rod; 4, supporting the bracket; 5 a direct current electric device; 6, a gate plate; 7, valve seats; 8, a wedge-shaped block; 9 flashboard frame
Detailed Description
The nuclear two-stage direct-current electric parallel seat gate valve for the Hualong I is formed by a valve body 1 and a valve cover 2 which are connected through a middle flange stud to form a pressure boundary, the valve cover 2 and a support 4, the support 4 and a direct-current electric device 5 are connected through flanges respectively, and a gate plate assembly in the valve is composed of a gate plate 6, a wedge-shaped block 8 and a gate plate frame 9.
The action principle is as follows: the direct-current electric device (5) is controlled by the direct-current power supply to drive the valve rod nut to rotate, the valve rod nut rotates clockwise or anticlockwise to enable the valve rod (3) to move up and down, and meanwhile the flashboard component is driven to move up and down, so that the opening and closing actions of the valve are realized.
Claims (7)
1. The utility model provides a parallel seat gate valve of nuclear second grade direct current electronic which characterized in that: the direct current electric valve comprises a valve body (1), a valve cover (2) is arranged on the valve body (1), a valve rod (3) is arranged in the valve body (1), the valve rod (3) penetrates through the valve cover (2) and is fixedly connected with a direct current electric device (5), and a support (4) is arranged between the direct current electric device (5) and the valve cover (2).
2. The nuclear two-stage dc electric parallel seat gate valve of claim 1, wherein: the valve rod (3) is fixedly connected with the flashboard (6) at the tail end of the valve body (1), and the flashboard (6) is fixed on the valve seat (7) through the flashboard frame (9).
3. A nuclear two stage dc powered parallel seat gate valve as claimed in claim 2 wherein: a wedge-shaped block (8) is arranged between the flashboard frame (9) and the flashboard (6).
4. A nuclear two stage dc powered parallel seat gate valve as claimed in claim 3 wherein: the support (4) is a cylindrical support, and reinforcing ribs are arranged on two sides of the cylindrical support.
5. The nuclear two-stage dc electric parallel seat gate valve of claim 4, wherein: the direct current electric device (5) adopts a direct current electric device to control the opening and closing of the valve.
6. The nuclear two-stage dc electric parallel seat gate valve of claim 5, wherein: flashboard (6) and wedge (8) be the parallel double-gate structure of two wedges, its concrete structure is two flashboards and two upper and lower voussoirs constitution flashboard subassembly, through two voussoirs with valve rod axial force transmission to flashboard-valve seat sealed face, realize the medium and cut the function.
7. The nuclear two-stage dc electric parallel seat gate valve of claim 6, wherein: the flashboard (6) and the wedge-shaped block (8) are of a double-wedge-block parallel double-flashboard structure, and the axial force of the valve rod is transmitted to a flashboard-valve seat sealing surface through the two wedges, so that the medium cut-off function is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811188468.2A CN111043381A (en) | 2018-10-12 | 2018-10-12 | Nuclear two-stage DC electric parallel seat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811188468.2A CN111043381A (en) | 2018-10-12 | 2018-10-12 | Nuclear two-stage DC electric parallel seat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043381A true CN111043381A (en) | 2020-04-21 |
Family
ID=70229652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811188468.2A Pending CN111043381A (en) | 2018-10-12 | 2018-10-12 | Nuclear two-stage DC electric parallel seat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043381A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816516Y (en) * | 2005-08-31 | 2006-09-13 | 黄作兴 | Nuclear-electric sluice valve |
| CN2908937Y (en) * | 2006-04-28 | 2007-06-06 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage quick on-off section valve |
| CN101586670A (en) * | 2008-05-20 | 2009-11-25 | 核电秦山联营有限公司 | Nuclear second-stage electric V-shaped brake valve |
| CN201487266U (en) * | 2009-05-25 | 2010-05-26 | 中核苏阀科技实业股份有限公司 | Parallel seat gate valve |
| CN202371197U (en) * | 2011-12-26 | 2012-08-08 | 浙江上一阀门有限公司 | Flat-plate gate valve |
| CN104089063A (en) * | 2014-07-29 | 2014-10-08 | 温州大学 | Nuclear grade gate valve |
-
2018
- 2018-10-12 CN CN201811188468.2A patent/CN111043381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816516Y (en) * | 2005-08-31 | 2006-09-13 | 黄作兴 | Nuclear-electric sluice valve |
| CN2908937Y (en) * | 2006-04-28 | 2007-06-06 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage quick on-off section valve |
| CN101586670A (en) * | 2008-05-20 | 2009-11-25 | 核电秦山联营有限公司 | Nuclear second-stage electric V-shaped brake valve |
| CN201487266U (en) * | 2009-05-25 | 2010-05-26 | 中核苏阀科技实业股份有限公司 | Parallel seat gate valve |
| CN202371197U (en) * | 2011-12-26 | 2012-08-08 | 浙江上一阀门有限公司 | Flat-plate gate valve |
| CN104089063A (en) * | 2014-07-29 | 2014-10-08 | 温州大学 | Nuclear grade gate valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |