CN207093780U - A kind of nuclear power bellows instrument valve - Google Patents
A kind of nuclear power bellows instrument valve Download PDFInfo
- Publication number
- CN207093780U CN207093780U CN201720903933.0U CN201720903933U CN207093780U CN 207093780 U CN207093780 U CN 207093780U CN 201720903933 U CN201720903933 U CN 201720903933U CN 207093780 U CN207093780 U CN 207093780U
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- Prior art keywords
- filter
- valve rod
- valve
- baffle plate
- bonnet
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- 239000007788 liquid Substances 0.000 claims abstract description 45
- 239000010865 sewage Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 13
- 239000012535 impurity Substances 0.000 abstract description 5
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 210000003660 reticulum Anatomy 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model provides a kind of nuclear power bellows instrument valve, the utility model includes valve body, bonnet, valve element, valve rod, drive device, bellows, feed liquor baffle plate, go out liquid baffle plate, sewage draining exit, by entering liquid zone, going out liquid zone to be respectively provided with filter, filtration is served to medium, impurity is slipped to sewage draining exit along the arc-shaped concave of body base, is discharged by sewage draining exit；By the setting of four layers of filtering harden structure, the first filter is used arc plate structure, is increased filter area, extend filtration time using castellated plates and connecting plate alternating structure, the second filter, ensure that the validity and elimination efficiency of filtering；First valve rod is connected with the second valve rod by rolling bearing, and guide is set on the second valve rod, is limited the rotation of the second valve rod, is protected bellows, so as to ensure that volume sealing at bellows, extends the service life of valve.
Description
Technical field
It the utility model is related to a kind of valve, and in particular to a kind of nuclear power bellows instrument valve.
Background technology
Since December nineteen fifty-one, U.S.'s experimental breeder heap 1 utilized nuclear energy power generation first, world nuclear has six so far
The developing history of more than ten years.China is qualified nuclear power, shares in fortune, is building and proposed nuclear power generating sets 52 at present
Platform, unit scale the first in the world is being built, total installed capacity scale occupies the world the 4th.Nuclear power valve is the water being had a large capacity and a wide range in nuclear power station
Equipment is pressed, it connects more than 300 systems of whole nuclear power station, is the crucial annex of nuclear plant safety operation.United according to related data
Meter, the existing seat of nuclear power generating sets more than 500 in the whole world, total installation of generating capacity up to 400,000,000 more than KW, the main pressure water heap of its type of reactor,
Boiling-water reactor, graphite stack, fast neutron reactor, high temperature gas-cooled, PHWR.Wherein, presurized water reactor accounts for more than the 50% of whole heap-type.Nuclear power valve
Door, though it is annex in nuclear power plant equipment, it is most important.Nuclear power valve than routine large-scale thermal power station with valve its
Technical characterstic and requirement are high, and stop valve is used primarily on auxiliary line, and how using corrugated tube sealing structure, bellows can only
Bear axial load, it is impossible to bear circumferential load, this requires that the valve rod of bellows stop valve can not during up and down motion
Rotation is produced, to ensure the sealing property of bellows；Other bellows stop valve needed in liquid mediums such as transfer oils
Filter, just occurs impurity, the circulation of whole pipeline internal medium can be influenceed after impurities accumulation after filtering, and in the prior art, valve rod
Anti-rotation is realized using the limited block of external, complicated, and anti-rotation is ineffective after long-term use, it is difficult to ensure that valve rod
Do not rotate, so as to cannot guarantee that the sealing property at bellows, influence the service life of valve.
Utility model content
In order to solve problems of the prior art, the utility model provides a kind of nuclear power bellows instrument valve,
The characteristics of with simple in construction, good seal performance, contaminant filter easy-clear.
The technical scheme that the utility model solves the above problems is：A kind of nuclear power bellows instrument valve, including valve body, valve
Lid, valve element, valve rod, drive device, bellows, feed liquor baffle plate, go out liquid baffle plate, sewage draining exit, valve rod includes the first valve rod, the second valve
Bar, the first valve rod are cylinder, and one end end face of the first valve rod is provided with circular groove, and circular groove is located at the first valve rod end face
Center；Second valve rod is cylinder, and second valve rod one end end face is provided with round boss, and round boss is located at the second valve
The center of rod end surface, the second valve rod shaft are provided with multiple guides, and guide surrounds the second valve rod annular array, guide
Horizontal plane be projected as it is "T"-shaped；First valve rod is provided with one end and the one end of the second valve rod provided with round boss of circular groove
It is connected by rolling bearing, the first valve rod is located at the top of the second valve rod；
Bonnet is provided with "T"-shaped groove in the corresponding part of trip segment that the second valve rod moves up and down；
Body base is provided with sewage draining exit, and valve body both ends are respectively equipped with inlet, liquid outlet, are provided with into liquid zone, go out in valve body
Liquid zone, enter liquid zone and be provided with feed liquor baffle plate, the first filter, the second filter are sequentially provided with along feed liquor direction on feed liquor baffle plate,
First filter, the second filter are located at the lower section of feed liquor baffle plate；Go out liquid zone and be provided with out liquid baffle plate, go out on liquid baffle plate along going out liquid
Direction is sequentially provided with the first filter, the second filter, and the first filter, the second filter are located at the lower section of feed liquor baffle plate, edge
Liquid flow direction and be sequentially provided with the first filter, the second filter, the first filter, the second filter are located at liquid baffle plate
Top；
First filter horizontal plane the circle that is projected as, the first filter include castellated plates, connecting plate, multiple tooth forms
Plate, connecting plate are alternately distributed, and a connecting plate is provided among two neighboring castellated plates；Multiple first filterings are equipped with connecting plate
Hole, the first filter bores are uniformly distributed in connecting plate, castellated plates in multiple lines and multiple rows matrix structure；First filter bores include arc
Hole, circular hole, six arcuate sockets are circumferentially uniformly distributed around circular hole, and the angle between two neighboring arcuate socket is 60 °；Castellated plates
Multiple row " I " shape filter bores are provided with, distance is equal between adjacent two row " I " shape filter bores, " I " shape filtering two neighboring in each column
The distance between hole is equal；
For second filter in the circle that is projected as of horizontal plane, the second filter includes multiple arcs plate, the section of arc
Circular arc is shaped as, each arc is provided with multiple second filter bores, and the second filter bores are uniformly distributed in more in arc plate
Row multiple row matrix structure；Second filter bores include diamond hole, hexagonal hole, circumferential uniform point around diamond hole of four hexagonal holes
Cloth, the angle between two neighboring hexagonal hole is 90 °；
Bonnet is located above valve body, and bonnet is connected with top end of the valve body, and drive device is fixed on bonnet top；Valve rod is located at valve
In vivo, valve rod central shaft and valve body center overlapping of axles, valve rod shaft are set with bellows；First valve rod is not provided with circular groove
Bonnet is stretched out in one end, and the end is connected with drive device, and one end that the second valve rod is not provided with round boss is connected with valve element, the second valve
Guide on bar is engaged with "T"-shaped groove；Sealing-plug is provided with the sewage draining exit of body base, is set between sealing-plug and sewage draining exit
There is sealing ring.
The sealing ring is O-ring seal, and material is soft graphite.
The valve element is stainless steel material.
Welded between the valve element and bonnet for built-up welding.
The utility model has beneficial effect：The utility model is simple in construction, reasonable in design, by entering liquid zone, going out liquid
Area is respectively provided with filter, filtration is served to medium, impurity is slipped to sewage draining exit along the arc-shaped concave of body base, by arranging
Dirty mouth discharge；By the setting of four layers of filtering harden structure, the first filter is using castellated plates and connecting plate alternating structure, the second mistake
Filter plate uses arc plate structure, increases filter area, extends filtration time, ensure that the validity of filtering is imitated with removing
Rate；First valve rod is connected with the second valve rod by rolling bearing, and guide is set on the second valve rod, limits the second valve rod
Rotate, protect bellows, so as to ensure that volume sealing at bellows, extend the service life of valve.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is along the sectional view in A-A directions in Fig. 1.
Fig. 3 is the utility model the first filter front view.
Fig. 4 is the utility model the first filter top view.
Fig. 5 is the utility model the second filter top view.
Fig. 6 is the stereogram when filter of the utility model second is not provided with the second filter bores.
Fig. 7 is the utility model the first stem structure schematic diagram.
Fig. 8 is the utility model the second stem structure schematic diagram.
In figure：1- valve bodies, 2- bonnets, 3- valve elements, 4- valve rods, the valve rods of 5- first, the valve rods of 6- second, 7- drive devices, 8-
Bellows, 9- feed liquor baffle plates, 10- go out liquid baffle plate, and 11- enters liquid zone, and 12- goes out liquid zone, the filters of 13- first, and 14- second is filtered
Plate, 15- sewage draining exits, 16- sealing-plugs, 17- circular grooves, 18- round boss, 19- guides, 20- inlets, 21- liquid outlets,
22- castellated plates, 23- connecting plates, the filter bores of 24- first, 25- arcuate sockets, 26- circular holes, 27- " I " shapes hole, 28- arcs, 29-
Second filter bores, 30- diamond holes, 31- hexagonal holes.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
A kind of nuclear power bellows instrument valve, including valve body, bonnet, valve element, valve rod, drive device, bellows, feed liquor gear
Plate, go out liquid baffle plate, sewage draining exit, valve rod includes the first valve rod, the second valve rod, and the first valve rod is cylinder, one end of the first valve rod
End face is provided with circular groove, and circular groove is located at the center of the first valve rod end face；Second valve rod is cylinder, the second valve
Bar one end end face is provided with round boss, and round boss is located at the center of the second valve rod end face, and the second valve rod shaft is provided with
Multiple guides, guide surround the second valve rod annular array, guide horizontal plane be projected as it is "T"-shaped；First valve rod is set
One end that the one end for having circular groove is provided with round boss with the second valve rod is connected by rolling bearing, and the first valve rod is located at second
The top of valve rod；
Bonnet is provided with "T"-shaped groove in the corresponding part of trip segment that the second valve rod moves up and down；
Body base is provided with sewage draining exit, and valve body both ends are respectively equipped with inlet, liquid outlet, are provided with into liquid zone, go out in valve body
Liquid zone, enter liquid zone and be provided with feed liquor baffle plate, the first filter, the second filter are sequentially provided with along feed liquor direction on feed liquor baffle plate,
First filter, the second filter are located at the lower section of feed liquor baffle plate；Go out liquid zone and be provided with out liquid baffle plate, go out on liquid baffle plate along going out liquid
Direction is sequentially provided with the first filter, the second filter, and the first filter, the second filter are located at the lower section of feed liquor baffle plate, edge
Liquid flow direction and be sequentially provided with the first filter, the second filter, the first filter, the second filter are located at liquid baffle plate
Top；
First filter horizontal plane the circle that is projected as, the first filter include castellated plates, connecting plate, multiple tooth forms
Plate, connecting plate are alternately distributed, and a connecting plate is provided among two neighboring castellated plates；Multiple first filterings are equipped with connecting plate
Hole, the first filter bores are uniformly distributed in connecting plate, castellated plates in multiple lines and multiple rows matrix structure；First filter bores include arc
Hole, circular hole, six arcuate sockets are circumferentially uniformly distributed around circular hole, and the angle between two neighboring arcuate socket is 60 °；Castellated plates
Multiple row " I " shape filter bores are provided with, distance is equal between adjacent two row " I " shape filter bores, " I " shape filtering two neighboring in each column
The distance between hole is equal；
For second filter in the circle that is projected as of horizontal plane, the second filter includes multiple arcs plate, the section of arc
Circular arc is shaped as, each arc is provided with multiple second filter bores, and the second filter bores are uniformly distributed in more in arc plate
Row multiple row matrix structure；Second filter bores include diamond hole, hexagonal hole, circumferential uniform point around diamond hole of four hexagonal holes
Cloth, the angle between two neighboring hexagonal hole is 90 °；
Bonnet is located above valve body, and bonnet is connected with top end of the valve body, and drive device is fixed on bonnet top；Valve rod is located at valve
In vivo, valve rod central shaft and valve body center overlapping of axles, valve rod shaft are set with bellows；First valve rod is not provided with circular groove
Bonnet is stretched out in one end, and the end is connected with drive device, and one end that the second valve rod is not provided with round boss is connected with valve element, the second valve
Guide on bar is engaged with "T"-shaped groove；Sealing-plug is provided with the sewage draining exit of body base, is set between sealing-plug and sewage draining exit
There is sealing ring.
The sealing ring is O-ring seal, and material is soft graphite.
The valve element is stainless steel material.
Welded between the valve element and bonnet for built-up welding.
Drive device band ovable valve stem moves up and down, and is connected between the first valve rod and the second valve rod by rolling bearing, and second
Guide on valve rod is engaged with "T"-shaped groove, ensure that working as the second valve rod only moves up and down, and does not rotate；In valve body
Enter liquid zone, go out the first filter set in liquid zone, the second filter fully filters to medium, the impurity filtered out is along valve body
The arc-shaped concave of bottom is slipped to sewage draining exit, is discharged by sewage draining exit.
Many other changes and remodeling can be made by not departing from spirit and scope of the present utility model.It should be appreciated that this reality
Specific embodiment is not limited to new, the scope of the utility model is defined by the following claims.
Claims (4)
- A kind of 1. nuclear power bellows instrument valve, it is characterised in that a kind of nuclear power bellows instrument valve, including valve body, bonnet, Valve element, valve rod, drive device, bellows, feed liquor baffle plate, going out liquid baffle plate, sewage draining exit, valve rod includes the first valve rod, the second valve rod, First valve rod is cylinder, and one end end face of the first valve rod is provided with circular groove, and circular groove is located at the first valve rod end face Center；Second valve rod is cylinder, and second valve rod one end end face is provided with round boss, and round boss is located at the second valve rod The center of end face, the second valve rod shaft are provided with multiple guides, and guide surrounds the second valve rod annular array, and guide exists Being projected as horizontal plane is "T"-shaped；First valve rod is provided with one end of circular groove and the one end of the second valve rod provided with round boss leads to Cross rolling bearing to be connected, the first valve rod is located at the top of the second valve rod；Bonnet is provided with "T"-shaped groove in the corresponding part of trip segment that the second valve rod moves up and down；Body base is provided with sewage draining exit, and valve body both ends are respectively equipped with inlet, liquid outlet, are provided with valve body into liquid zone, go out liquid zone, Enter liquid zone and be provided with feed liquor baffle plate, the first filter, the second filter, the first mistake are sequentially provided with along feed liquor direction on feed liquor baffle plate Filter plate, the second filter are located at the lower section of feed liquor baffle plate；Go out liquid zone and be provided with out liquid baffle plate, go out on liquid baffle plate along go out liquid direction according to Secondary to be provided with the first filter, the second filter, the first filter, the second filter are located at the lower section of feed liquor baffle plate, along liquid Flow direction is sequentially provided with the first filter, the second filter, and the first filter, the second filter are located at the upper of liquid baffle plate Side；First filter horizontal plane the circle that is projected as, the first filter include castellated plates, connecting plate, multiple castellated plates, company Fishplate bar is alternately distributed, and a connecting plate is provided among two neighboring castellated plates；Multiple first filter bores are equipped with connecting plate, the One filter bores are uniformly distributed in connecting plate, castellated plates in multiple lines and multiple rows matrix structure；First filter bores include arcuate socket, circle Hole, six arcuate sockets are circumferentially uniformly distributed around circular hole, and the angle between two neighboring arcuate socket is 60 °；Set in castellated plates Have multiple row " I " shape filter bores, distance is equal between adjacent two row " I " shape filter bores, " I " shape filter bores two neighboring in each column it Between distance it is equal；For second filter in the circle that is projected as of horizontal plane, the second filter includes multiple arcs plate, the cross sectional shape of arc For circular arc, each arc is provided with multiple second filter bores, and the second filter bores are uniformly distributed more in multirow in arc plate Column matrix structure；Second filter bores include diamond hole, hexagonal hole, and four hexagonal holes are circumferentially uniformly distributed around diamond hole, Angle between two neighboring hexagonal hole is 90 °；Bonnet is located above valve body, and bonnet is connected with top end of the valve body, and drive device is fixed on bonnet top；Valve rod is located at valve body Interior, valve rod central shaft and valve body center overlapping of axles, valve rod shaft are set with bellows；First valve rod is not provided with the one of circular groove Bonnet is stretched out at end, and the end is connected with drive device, and one end that the second valve rod is not provided with round boss is connected with valve element, the second valve rod On guide be engaged with "T"-shaped groove；Sealing-plug is provided with the sewage draining exit of body base, is provided between sealing-plug and sewage draining exit Sealing ring.
- 2. a kind of nuclear power bellows instrument valve as claimed in claim 1, it is characterised in that the sealing ring is O-shaped sealing Circle, material is soft graphite.
- 3. a kind of nuclear power bellows instrument valve as claimed in claim 1, it is characterised in that the valve element is stainless steel Material.
- 4. a kind of nuclear power bellows instrument valve as claimed in claim 1, it is characterised in that be between the valve element and bonnet Built-up welding is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903933.0U CN207093780U (en) | 2017-07-25 | 2017-07-25 | A kind of nuclear power bellows instrument valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903933.0U CN207093780U (en) | 2017-07-25 | 2017-07-25 | A kind of nuclear power bellows instrument valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093780U true CN207093780U (en) | 2018-03-13 |
Family
ID=61546107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903933.0U Active CN207093780U (en) | 2017-07-25 | 2017-07-25 | A kind of nuclear power bellows instrument valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093780U (en) |
-
2017
- 2017-07-25 CN CN201720903933.0U patent/CN207093780U/en active Active
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