CN107314152A - Superhigh-temperature and-pressure steam evacuation valve - Google Patents
Superhigh-temperature and-pressure steam evacuation valve Download PDFInfo
- Publication number
- CN107314152A CN107314152A CN201710696831.0A CN201710696831A CN107314152A CN 107314152 A CN107314152 A CN 107314152A CN 201710696831 A CN201710696831 A CN 201710696831A CN 107314152 A CN107314152 A CN 107314152A
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- China
- Prior art keywords
- valve
- stuffing box
- valve seat
- sleeve
- labyrinth
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to superhigh-temperature and-pressure steam evacuation valve, including valve body, stuffing box is arranged in valve body, and labyrinth sleeve is assemblied in the inside of the stuffing box by fastener, the labyrinth flow road junction of labyrinth sleeve is connected with the strip flow path groove of stuffing box；Also abutted in valve body, at one end inner ring of labyrinth sleeve stretching stuffing box with one end of valve seat, the other end connection of valve seat offers the valve seat bottom plate of pod apertures；One end external diameter of big valve core is engaged with the internal diameter of stuffing box, and the other end of big valve core is stretched into valve seat and abutted against in the internal diameter of valve seat；Stuffing box, bonnet and the inside for stretching into big valve core are run through in one end of mandrel.The present invention on the outside of stuffing box by setting strip flow path groove it is connected with the labyrinth sleeve runner mouthful of labyrinth sleeve, avoid direct impact of the High Pressure Difference steam to labyrinth sleeve, which raises the service life of labyrinth sleeve, labyrinth flow road junction ensures the inflow and outflow of steam with strip flow path groove.
Description
Technical field
The present invention relates to valve field, more particularly to superhigh-temperature and-pressure steam evacuation valve.
Background technology
At present, existing steam evacuation valve is substantially dependence on import product, its most porous type or labyrinth type telescoping valve
Structure, self sealss bonnet, valve seat valve body formula, pilot valve structure.Because being superhigh pressure difference emptying use occasion, only
Multi-layer porous formula tube-in-tube structure can be used to meet the use requirement of High Pressure Difference, also had using labyrinth tube-in-tube structure, but by
In the bad design of connection with stuffing box, thus many labyrinths sleeves be all with valve seat integral type, by lengthening screw and valve
Seat is connected, and screw will bear very big pressure medium.Tube-in-tube structure, pilot valve have no problem in itself, pilot valve
Advantageously in V grades of above seal requests, tube-in-tube structure is more suitable for High Pressure Difference medium.But in actual use, adopt
With porous type sleeve because decompression series is inadequate, cause noise exceeded；Using labyrinth sleeve due to being placed on valve seat, due to height
Press medium, just directly in valve seat, to cause connecting pin to bear very big pressure by decompression, may cause pin be broken or
Failure, ultimately results in labyrinth sleeve and dissipates and trigger accident, so in the urgent need to designing a kind of steaming that can be suitably used for HTHP
Vapour atmospheric valve.
The content of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement there is provided a kind of superhigh-temperature and-pressure steam evacuation valve,
It not only solves the various problems in valve running, it is ensured that the safe and continuous operation of steam evacuation valve, meets scene
Exceed comprehensively in use requirement, properties of product and instead of import.
The technical solution adopted in the present invention is as follows：
Superhigh-temperature and-pressure steam evacuation valve, including valve body, stuffing box are arranged in the valve body, and labyrinth sleeve passes through fastening
Part is assemblied in the inside of the stuffing box, the labyrinth flow road junction of the labyrinth sleeve is connected with the strip flow path groove of stuffing box；
Also abutted in the valve body, at one end inner ring of labyrinth sleeve stretching stuffing box with one end of valve seat, the valve seat
Other end connection offer the valve seat bottom plates of pod apertures；One end external diameter of big valve core is engaged with the internal diameter of the stuffing box,
The other end of the big valve core is stretched into valve seat and abutted against in the internal diameter of valve seat；Stuffing box, bonnet are run through simultaneously in one end of mandrel
Stretch into the inside of big valve core.
Its further technical scheme is：
Along the circumferentially extending formation flange in the outer ring of the valve seat, the lower surface of the flange and the platform of valve inner
Rank abuts against, at the abutting of the flange lower surface and valve inner step, in also setting up valve seat self sealss in the flange
Ring；Four points of rings of valve seat are also set up in the upper surface of the seat flange, are along the circumferential direction opened in the lug upper surface of the valve seat
If annular groove, disc spring gland is set on the surface of described four points of rings of valve seat, the dish is run through in one end of hexagon socket cap head screw
Spring gland, four points of rings of valve seat are simultaneously abutted with the groove bottom of the annular groove, in the disc spring gland, in interior hexagonal cylindrical head spiral shell
The periphery of nail is also set with locking disc spring, and in also setting up screw pressing plate in the disc spring gland, holding screw runs through the screw pressure
Plate and the countersunk head end for compressing hexagon socket cap head screw；
The disc spring gland is rectangular block shape structure, is vertically opened up in the center of the disc spring gland in for coordinating
The screw mounting hole of hexagonal cylindrical head screw, is also transversely opened up for rigging screw pressing plate in the side of the disc spring gland
Pressing plate perforate, the pressing plate perforate is transversely through two relative each other sides of the disc spring gland, in the disc spring gland
Bottom also extend to be formed a pair be used for annular groove coordinate projection；
One end of the labyrinth sleeve is arranged on the step of stuffing box internal diameter, is assembled in the labyrinth sleeve and stuffing box
When, the external diameter of the labyrinth sleeve at the cooperation of stuffing box internal diameter with being respectively mounted inside and outside sleeve alignment pin and for preventing labyrinth
Sleeve is in the inside and outside sleeve junction of the edges of two sheets of paper pin of stuffing box inner rotation, and the outer ring for stretching out stuffing box one end in the labyrinth sleeve passes through set
Cylinder pressing plate is compressed, and the contact surface of the sleeve pressing plate and stuffing box is affixed by inner sleeve housing screw after welding；
The alignment pin is arranged at labyrinth sleeve outer diameter and the first half at sleeve pressing plate minor diameter fit；
The stage portion extended internally is set in the end of the valve seat, and the valve seat bottom plate is when mounted along the axis of valve seat
Direction movement is until the two ends of the valve seat bottom plate are abutted with the stage portion；
The bonnet is fixed in one end of valve body by bonnet full thread stud, bonnet hex nut, in the bonnet
Surface also sequence from low to uper part assembling hoisting nut rebound, hoisting nut, the hoisting nut pass through hexagon-headed bolt, hexagonal
The hoisting nut rebound is pressed in valve cover surfaces by nut；
Filler pressing sleeve is also set up in one end of mandrel stretching stuffing box, along the periphery of the mandrel, the filler pressing sleeve
Stuffing box is stretched into one end, in the external diameter of the mandrel with also sequentially being set at the cooperation of stuffing box internal diameter, in the outer ring of the mandrel
Put filler and matrix liner；The one end for stretching out stuffing box in the filler pressing sleeve also abuts gland, in the gland
On be provided with the disc spring stop collar of the second disk spring, one end of filler full thread stud is through the disc spring stop collar, the
It is connected after two disk springs, gland with the end of stuffing box, one end of the filler full thread stud passes through filler hexagonal
Nut check；
In the surface of the big valve core also by locking junction of the edges of two sheets of paper screw fixed journey system nut, along the periphery of the big valve core also
Multiple valve element guide rings are assembled, the disc spring spacer for contacting mandrel are also set up in the inside of the big valve core, in the disc spring
The bottom of spacer, in also setting up the first butterfly spring for being abutted with the disc spring spacer in the big valve core；
In the peripherally disposed top incline tilted down in the valve seat pressure sealing ring top, in the valve seat from close
The peripherally disposed acclivitous bottom incline in bottom of seal ring, the incline direction of the top incline and bottom incline is mutual
By on the contrary, the valve seat pressure sealing ring is made of metal material.
Beneficial effects of the present invention are as follows：
(1) by setting strip flow path groove it is connected with the labyrinth sleeve runner mouthful of labyrinth sleeve on the outside of stuffing box,
Avoid direct impact of the High Pressure Difference steam to labyrinth sleeve, which raises the service life of labyrinth sleeve, labyrinth flow road junction and length
Bar flow path groove ensures the inflow and outflow of steam.
(2) high-voltage high-speed medium first passes around the strip grooves of stuffing box and enters back into outflow in the sleeve of labyrinth, and labyrinth sleeve is several
Direct impulsive force is not subject to, labyrinth sleeve 17 is reduced by washing away destroyed risk.The connection of labyrinth sleeve and stuffing box
Middle setting inside and outside sleeve junction of the edges of two sheets of paper pin prevents labyrinth sleeve 17 from being acted on stuffing box internal rotating by high-velocity fluid out-of-balance force, inside and outside
Sleeve alignment pin, sleeve pressing plate, inner sleeve housing screw ensure that the security that big valve core moves up and down in the sleeve of labyrinth, one
Aspect reduces noise, on the other hand also ensure that the security used, it is ensured that the prolonged safe operation in scene, extends
Valve service life.
(3) Light deformation and sealing effectiveness are realized using the top incline and bottom incline of valve seat pressure sealing ring in the present invention,
The diameter difference formation self sealss area of the sealing surface of big valve core sealing surface and pressure sealing ring.When the valve is closed, huge medium
Pressure compaction is on the top of valve seat, so as to compress valve seat pressure sealing ring, reaches that pressure medium is higher, the better effect of sealing effectiveness
Really.Realize self sealss effect using the pressure of medium itself, it is to avoid using winding packing ring need larger pretension than pressure in the past and
The application risk of graphite creep is easily produced under high temperature, the sealing of valve seat and valve body is fundamentally realized.
(4) in also setting up screw pressing plate in disc spring gland, holding screw is through screw pressing plate and compresses interior hexagonal cylindrical head
The countersunk head end of screw, so as to prevent hexagon socket cap head screw from loosening.Hexagon socket cap head screw is direct by four points of rings of valve seat
Into in the annular groove of valve seat upper surface, four points of rings of valve seat are made not move radially, the projection and valve seat of disc spring gland bottom
Annular groove coordinate, prevent disc spring gland is rotated from producing loosening, screw pressing plate enters and twist from the pressing plate perforate of disc spring gland
Upper holding screw, so as to compress hexagon socket cap head screw, makes hexagon socket cap head screw not exit, and has prevented valve seat pine
Dynamic possibility, it is ensured that the safe handling of valve seat.
(5) middle part of valve seat sets guide part with the position of valve body cooperation, in the outer ring of valve seat, between adjacent guide part
Hollow structure, on the one hand can be such that valve seat is preferably oriented to valve body in the middle of setting, and on the other hand avoid valve seat from being moved with big valve core
When high temperature it is stuck because valve seat thermal expansion can have Free up Memory.The utilization stage portion welding of above-mentioned valve seat bottom plate and valve seat,
Even if weld seam fails, valve seat bottom plate is not easy to de- power valve seat, which not only reduces cost, and ensure that the safety fortune of valve seat
OK.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is mplifying structure schematic diagrams of the Fig. 1 at I.
Fig. 3 is mplifying structure schematic diagrams of the Fig. 1 at II.
Fig. 4 is mplifying structure schematic diagrams of the Fig. 1 at III.
The structural representation that Fig. 5 combines for stuffing box in the present invention with inner sleeve.
Fig. 6 is the structural representation of disc spring gland in the present invention.
Wherein：1st, valve body；2nd, stuffing box；3rd, big valve core；4th, mandrel；5th, valve seat；501st, valve seat bottom plate；502nd, flange；
503rd, annular groove；6th, valve seat pressure sealing ring；601st, top incline；602nd, bottom incline；7th, four points of rings of valve seat；8th, locking disc spring；
9th, disc spring gland；901st, screw mounting hole；902nd, pressing plate perforate；903rd, projection；10th, hexagon socket cap head screw；11st, screw pressure
Plate；12nd, holding screw；13rd, hoisting nut；14th, hoisting nut rebound；15th, bonnet；16th, four points of rings of stuffing box；17th, labyrinth
Sleeve；18th, sleeve pressing plate；19th, inside and outside sleeve junction of the edges of two sheets of paper pin；20th, inner sleeve housing screw；21st, inside and outside sleeve alignment pin；22nd, dish
Spring spacer；23rd, the first butterfly spring；24th, seal ring pressing plate；25th, bonnet pressure sealing ring；26th, valve element guide ring；27th, stroke spiral shell
It is female；28th, locking junction of the edges of two sheets of paper screw；29th, bonnet full thread stud；30th, bonnet hex nut；31st, hexagon-headed bolt；32nd, hexagonal spiral shell
It is female；33rd, matrix liner；34th, filler；35th, filler pressing sleeve；36th, gland；37th, filler full thread stud；38th, filler hexagonal
Nut；39th, the second disk spring；40th, disc spring stop collar.
Embodiment
Illustrate the embodiment of the present invention below.
As shown in figure 1, superhigh-temperature and-pressure steam evacuation valve includes valve body 1, stuffing box 2 is arranged in valve body 1, labyrinth sleeve
17 are assemblied in the inside of stuffing box 2 by fastener, make the labyrinth flow road junction of labyrinth sleeve 17 and the strip flow path groove of stuffing box 2
Connection, above-mentioned strip flow path groove is arranged at the outside of stuffing box 2, by by the labyrinth of above-mentioned strip flow path groove and labyrinth sleeve 17
Runner mouthful connection, it is to avoid direct impact of the High Pressure Difference steam to labyrinth sleeve 17, protects labyrinth sleeve, labyrinth flow road junction with
Strip flow path groove communicates the inflow and outflow that ensure that steam.Stretched out in valve body 1, in labyrinth sleeve 17 in one end of stuffing box 2
One end at circle also with valve seat 5 is abutted, and the other end connection of valve seat 5 offers the valve seat bottom plate 501 of pod apertures；Big valve core 3
One end external diameter is engaged with the internal diameter of stuffing box 2, and the other end of big valve core 3 is stretched into valve seat 5 and offseted in the internal diameter of valve seat 5
Connect, valve seat 5 uses jazz's cap shaped, stuffing box 2, bonnet 15 and the inside for stretching into big valve core 3 are run through in one end of mandrel 4.
As shown in Figure 1, Figure 2 and shown in Fig. 5, one end of above-mentioned labyrinth sleeve 17 is arranged on the step of the internal diameter of stuffing box 2, in fan
When palace sleeve 17 is assembled with stuffing box 2, the external diameter of labyrinth sleeve 17 at the cooperation of the internal diameter of stuffing box 2 with being respectively mounted inside and outside sleeve
Alignment pin 21 and for preventing labyrinth sleeve 17 in the inside and outside sleeve junction of the edges of two sheets of paper pin 19 of the inner rotation of stuffing box 2, in labyrinth sleeve 17
The outer ring for stretching out the one end of stuffing box 2 is compressed by sleeve pressing plate 18, and the contact surface of sleeve pressing plate 18 and stuffing box 2 leads to after welding
Cross inner sleeve housing screw 20 affixed, above-mentioned inside and outside sleeve alignment pin 21 is arranged in the external diameter of labyrinth sleeve 17 and sleeve pressing plate 18
The first half at the cooperation of footpath.In the assembling process of above-mentioned labyrinth sleeve 17 and stuffing box 2, labyrinth sleeve 17 is loaded filled out first
In hopper 2 and the labyrinth sleeve 17 that aligns labyrinth flow road junction and the strip grooves of stuffing box 2, sleeve pressing plate 18 uses inner sleeve after pushing down
Housing screw 20 is compressed, and then stamps inside and outside sleeve alignment pin 21, and then demolition sleeve pressing plate 18 is by inside and outside sleeve junction of the edges of two sheets of paper pin 19
Rear clamp sleeve pressing plate 18 is installed, the contact surface of sleeve pressing plate 18 and stuffing box 2 is along the circumferential direction welded.High-voltage high-speed is situated between
The strip grooves that matter first passes around stuffing box 2 enter back into outflow in labyrinth sleeve 17, and labyrinth sleeve 17 is almost not subject to direct impact
Power, reduces labyrinth sleeve 17 by washing away destroyed risk.Labyrinth sleeve 17 in the connection of stuffing box 2 with setting inside and outside sleeve
Junction of the edges of two sheets of paper pin 19 prevents labyrinth sleeve 17 from being acted on the internal rotating of stuffing box 2, inside and outside sleeve alignment pin by high-velocity fluid out-of-balance force
21st, sleeve pressing plate 18, inner sleeve housing screw 20 ensure that the security that big valve core 3 moves up and down in labyrinth sleeve 17, one
Aspect reduces noise, on the other hand also ensure that the security used, it is ensured that the prolonged safe operation in scene, extends
Valve service life.
As shown in figure 3, set the stage portion that extends internally in the end of above-mentioned valve seat 5, the edge when mounted of valve seat bottom plate 501
The axis direction movement of valve seat 5 is until the two ends of valve seat bottom plate 501 are abutted with stage portion.Along the outer ring of valve seat 5 along the circumferential direction
Extension forms flange 502, and lower surface and the step inside valve body 1 of flange 502 are abutted against, in the lower surface of flange 502 and valve body 1
At the abutting of interior step, in also setting up valve seat pressure sealing ring 6 in flange 502, as shown in figure 4, on the top of valve seat pressure sealing ring 6
The peripherally disposed top incline 601 tilted down, it is peripherally disposed to updip in the bottom of valve seat pressure sealing ring 6
The incline direction of oblique bottom incline 602, top incline 601 and bottom incline 602 is each other on the contrary, above-mentioned valve seat pressure sealing ring 6
It is made of metal material (such as stainless steel material), the top incline 601 using valve seat pressure sealing ring 6 and lower inclination in the present invention
Light deformation and sealing effectiveness are realized in face 602, and the diameter difference of the sealing surface of big valve core 3 and the sealing surface of valve seat pressure sealing ring 6 is formed certainly
Sealing area.When the valve is closed, huge pressure medium is pressed on the top of valve seat 5, so that valve seat pressure sealing ring 6 is compressed,
Reach that pressure medium is higher, the better effect of sealing effectiveness.Self sealss effect is realized using the pressure of medium itself, it is to avoid in the past
The application risk of larger pretension easy generation graphite creep than under pressure and high temperature is needed using winding packing ring, is fundamentally realized
The sealing of valve seat 5 and valve body 1.Also set up four points of rings 7 of valve seat in the upper surface of the flange 502 of valve seat 5, four points of rings 7 of valve seat to
It is the arcuate structure of the quartering less, annular groove 503 is along the circumferential direction opened up in the upper surface of flange 502 of valve seat 5, in four points of valve seat
The surface of ring 7 sets disc spring gland 9, one end of hexagon socket cap head screw 10 through disc spring gland 9, four points of rings 7 of valve seat and with
The groove bottom of annular groove 503 is abutted, and is also set with the disc spring gland 9, in the periphery of hexagon socket cap head screw 10 locking
Disc spring 8.The locking disc spring 8 on the above-mentioned top of valve seat 5 produces effect of the pretension than pressure.
As shown in fig. 6, disc spring gland 9 is rectangular block shape structure, vertically opened up in the center of disc spring gland 9 for matching somebody with somebody
The screw mounting hole 901 of hexagon socket cap head screw 10 is closed, is also transversely opened up for rigging screw in the side of disc spring gland 9
The pressing plate perforate 902 of pressing plate 11, pressing plate perforate 902 is rectangular opening, and pressing plate perforate 902 is along relative each other through disc spring gland 9
Two sides, also extend to form a pair of projections 903 for annular groove 503 coordinating in the bottom of disc spring gland 9.In disc spring pressure
Screw pressing plate 11 is also set up in set 9, holding screw 12 runs through screw pressing plate 11 and compresses the countersunk head of hexagon socket cap head screw 10
End, so as to prevent hexagon socket cap head screw 10 from loosening.Hexagon socket cap head screw 10 passes through four points of direct admission valves of ring 7 of valve seat
In the annular groove 503 of 5 upper surfaces of seat, four points of rings 7 of valve seat are made not move radially, the projection 903 and valve of the bottom of disc spring gland 9
The annular groove 503 of seat 5 coordinates, and prevents disc spring gland 9 is rotated from producing loosening, pressing plate perforate of the screw pressing plate 11 from disc spring gland 9
Enter in 902 and screw on holding screw 12, so as to compress hexagon socket cap head screw 10, make the nothing of hexagon socket cap head screw 10
Method is exited, and has prevented the possibility of the loosening of valve seat 5, it is ensured that the safe handling of valve seat 5.
As shown in figure 1, bonnet 15 is fixed in valve body by bonnet full thread stud 29, bonnet hex nut 30 in the present invention
1 one end, in the surface of bonnet 15 also sequence from low to uper part assembling hoisting nut rebound 14, hoisting nut 13, hoisting nut
Hoisting nut rebound 14 is pressed in the surface of bonnet 15 by 13 by hexagon-headed bolt 31, hex nut 32.Stretched into bonnet 15
One end of valve body 1 is also abutted with the four points of rings 16 of stuffing box being assemblied in valve body 1, and the bottom of four points of rings 16 of stuffing box passes through sealing
The outer ring of ring-shaped pressuring plate 24, bonnet pressure sealing ring 25 with stuffing box 2 in valve body 1 is abutted against.The one of stuffing box 2 is stretched out in mandrel 4
End, filler pressing sleeve 35 is also set up along the periphery of mandrel 4, stuffing box 2 is stretched into one end of filler pressing sleeve 35, in mandrel 4 external diameter with
Also order sets filler 34 and matrix liner 33 at the cooperation of the internal diameter of stuffing box 2, in the outer ring of mandrel 4；Stretched in filler pressing sleeve 35
The one end for going out stuffing box 2 also abuts gland 36, is limited in the disc spring that the second disk spring 39 is provided with gland 36
Position set 40, one end of filler full thread stud 37 is run through after disc spring stop collar 40, the second disk spring 39, gland 36 with filling out
The end connection of hopper 2, one end of filler full thread stud 37 is locked by filler hex nut 38.In the surface of big valve core 3
Also by the locking fixed journey system nut 27 of junction of the edges of two sheets of paper screw 28, multiple valve element guide rings 26 are also assembled along the periphery of big valve core 3, big
The inside of valve element 3 also sets up the disc spring spacer 22 for contacting mandrel 4, in the bottom of disc spring spacer 22, in also being set in big valve core 3
Put the first butterfly spring 23 abutted with disc spring spacer 22.
As shown in figure 5, labyrinth sleeve 17 is by the way of chipset is superimposed after assembling soldering again in the present invention, in adjacent core
Setting Ni-based pricker powder to bear under superhigh temperature medium, high temperature between piece, bond strength is high between chip.One side labyrinth sleeve 17
Structure reduces flow velocity and noise, and another aspect chipset and high bond strength are in turn ensured that under live high temperature and high pressure condition
Safe handling and operation.
As described in Figure 1, high-temperature high-pressure medium is entered inside valve seat 5 by the porous of the bottom of big valve core 3, then passes through valve
The pod apertures outflow of seat bottom plate 501, effectively prevent washing away and pressure vacuum to valve seat bottom plate 501, it flows big valve core 3
The high-speed Medium gone out is quickly diverted to the outside of valve seat, hence into the pipeline expanded to downstream, reduces flow velocity and noise.Such as
Shown in Fig. 1, Fig. 4, the middle part of valve seat 5 sets guide part with the position of the cooperation of valve body 1, in the outer ring of valve seat 5, in adjacent guide part
Between set in the middle of hollow structure, release the thermal expansion of valve seat external diameter, it is to avoid the bottom of big valve core 3 is cylindrical with valve seat bore
Thermal expansion is stuck.The utilization stage portion of above-mentioned valve seat bottom plate 501 and valve seat 5 is welded, even if weld seam fails, valve seat bottom plate 501
De- power valve seat 5 is difficult, which not only reduces cost, and the safe operation of valve seat 5 is ensure that.
Above description is explanation of the invention, is not the restriction to invention, limited range of the present invention is referring to right
It is required that, in the case of the basic structure without prejudice to the present invention, the present invention can make any type of modification.
Claims (10)
1. superhigh-temperature and-pressure steam evacuation valve, it is characterised in that：Including valve body (1), stuffing box (2) is arranged at the valve body (1)
Interior, labyrinth sleeve (17) is assemblied in the inside of the stuffing box (2) by fastener, makes the labyrinth flow of the labyrinth sleeve (17)
Road junction is connected with the strip flow path groove of stuffing box (2)；Stuffing box is stretched out in the valve body (1), in the labyrinth sleeve (17)
(2) one end at one end inner ring also with valve seat (5) is abutted, and the other end connection of the valve seat (5) offers the valve of pod apertures
Seat bottom plate (501)；One end external diameter of big valve core (3) is engaged with the internal diameter of the stuffing box (2), the big valve core (3) it is another
One end is stretched into valve seat (5) and abutted against in the internal diameter of valve seat (5)；Stuffing box (2), bonnet (15) are run through in one end of mandrel (4)
And stretch into the inside of big valve core (3).
2. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：Along the outer ring edge of the valve seat (5)
Circumferencial direction extends to form flange (502), and the step that the lower surface of the flange (502) is internal with valve body (1) is abutted against, in institute
State at the abutting of flange (502) lower surface and valve body (1) interior step, in also setting up valve seat self sealss in the flange (502)
Ring (6)；Four points of rings (7) of valve seat are also set up in the upper surface of the valve seat (5) flange, on the flange (502) of the valve seat (5)
Surface along the circumferential direction opens up annular groove (503), and disc spring gland (9), interior hexagonal are set on the surface of described four points of rings (7) of valve seat
One end of fillister head screw (10) through the disc spring gland (9), four points of rings (7) of valve seat and with the groove of the annular groove (503)
Bottom surface is abutted, and locking disc spring (8) is also set with the disc spring gland (9), in the periphery of hexagon socket cap head screw (10), in
Screw pressing plate (11) is also set up in the disc spring gland (9), holding screw (12) is through the screw pressing plate (11) and compresses interior
The countersunk head end of hexagonal cylindrical head screw (10).
3. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 2, it is characterised in that：The disc spring gland (9) is rectangle
Block structure, the spiral shell for coordinating hexagon socket cap head screw (10) is vertically opened up in the center of the disc spring gland (9)
Mounting hole (901) is followed closely, also transversely opens up and is opened for the pressing plate of rigging screw pressing plate (11) in the side of the disc spring gland (9)
Hole (902), the pressing plate perforate (902) is transversely through two relative each other sides of the disc spring gland (9), in the dish
The bottom of spring gland (9) also extends to form a pair of projections (903) for annular groove (503) coordinating.
4. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：One end of the labyrinth sleeve (17)
On the step for being arranged at stuffing box (2) internal diameter, when the labyrinth sleeve (17) and stuffing box (2) are assembled, the labyrinth sleeve
(17) external diameter at the cooperation of stuffing box (2) internal diameter with being respectively mounted inside and outside sleeve alignment pin (21) and for preventing labyrinth sleeve
(17) in the inside and outside sleeve junction of the edges of two sheets of paper pin (19) of stuffing box (2) inner rotation, stuffing box (2) one is stretched out in the labyrinth sleeve (17)
The outer ring at end is compressed by sleeve pressing plate (18), and the sleeve pressing plate (18) and the contact surface of stuffing box (2) pass through after welding
Inner sleeve housing screw (20) is affixed.
5. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 4, it is characterised in that：The alignment pin (21) is arranged at fan
Palace sleeve (17) external diameter and the first half at sleeve pressing plate (18) minor diameter fit.
6. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：Set in the end of the valve seat (5)
The stage portion extended internally is put, the valve seat bottom plate (501) is moved until the valve along the axis direction of valve seat (5) when mounted
The two ends of seat bottom plate (501) are abutted with the stage portion.
7. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：The bonnet (15) is complete by bonnet
Threaded stud (29), bonnet hex nut (30) are fixed in one end of valve body (1), the surface of the bonnet (15) also from lower and
Upper assembled in sequence hoisting nut rebound (14), hoisting nut (13), the hoisting nut (13) by hexagon-headed bolt (31),
The hoisting nut rebound (14) is pressed in bonnet (15) surface by hex nut (32).
8. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：Stuffing box (2) is stretched out in mandrel (4)
One end, filler pressing sleeve (35) is also set up along the periphery of the mandrel (4), stuffing box is stretched into one end of the filler pressing sleeve (35)
(2), also order is set at the external diameter of the mandrel (4) and the cooperation of stuffing box (2) internal diameter, in the outer ring of the mandrel (4)
Filler (34) and matrix liner (33)；The one end for stretching out stuffing box (2) in the filler pressing sleeve (35) also abuts gland
(36), in the disc spring stop collar (40) that the second disk spring (39) is provided with the gland (36), filler full thread
One end of stud (39) through the disc spring stop collar (40), the second disk spring (39), gland (36) afterwards and stuffing box
(2) end connection, one end of the filler full thread stud (39) is locked by filler hex nut (38).
9. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：Surface in the big valve core (3)
Also by locking junction of the edges of two sheets of paper screw (28) fixed journey system nut (27), also assemble multiple valve elements along the periphery of the big valve core (3) and lead
To ring (26), the disc spring spacer (22) for contacting mandrel (4) is also set up in the inside of the big valve core (3), in the disc spring
The bottom of spacer (22), the first butterfly spring abutted with the disc spring spacer (22) is also set up in the big valve core (3)
(23)。
10. superhigh-temperature and-pressure steam evacuation valve as claimed in claim 1, it is characterised in that：In the valve seat pressure sealing ring (6)
The peripherally disposed top incline (601) tilted down in top, it is circumferentially square in the bottom of the valve seat pressure sealing ring (6)
To the acclivitous bottom incline (602) of setting, the incline direction of the top incline (601) and bottom incline (602) is each other
On the contrary, the valve seat pressure sealing ring (6) is made of metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696831.0A CN107314152B (en) | 2017-08-15 | 2017-08-15 | Ultrahigh-temperature high-pressure steam vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696831.0A CN107314152B (en) | 2017-08-15 | 2017-08-15 | Ultrahigh-temperature high-pressure steam vent valve |
Publications (2)
| Publication Number | Publication Date |
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| CN107314152A true CN107314152A (en) | 2017-11-03 |
| CN107314152B CN107314152B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710696831.0A Active CN107314152B (en) | 2017-08-15 | 2017-08-15 | Ultrahigh-temperature high-pressure steam vent valve |
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| Country | Link |
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| CN (1) | CN107314152B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150655A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
| CN108167461A (en) * | 2018-01-31 | 2018-06-15 | 黑龙江北方阀业有限责任公司 | It is a kind of to idle discharge steam valve |
| CN109780314A (en) * | 2019-03-21 | 2019-05-21 | 无锡智能自控工程股份有限公司 | A kind of suspension type labyrinth tube-in-tube structure |
| CN109114236B (en) * | 2018-09-19 | 2020-02-07 | 南通国电电站阀门股份有限公司 | Nuclear power island core reheat steam main flow control valve |
| CN111609146A (en) * | 2019-02-26 | 2020-09-01 | 北京航天石化技术装备工程有限公司 | Pressurizing pilot type high-temperature high-pressure labyrinth valve |
| CN112984207A (en) * | 2021-04-09 | 2021-06-18 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve |
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| CN207178878U (en) * | 2017-08-15 | 2018-04-03 | 无锡市亚迪流体控制技术有限公司 | Superhigh-temperature and-pressure steam evacuation valve |
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| US5012841A (en) * | 1989-08-24 | 1991-05-07 | Keystone International Holdings Corp. | Pressure reducing and conditioning valves |
| JPH04252808A (en) * | 1991-01-24 | 1992-09-08 | Nippon Beeles- Kk | Control valve for reducing temperature and pressure |
| CN202674810U (en) * | 2012-06-07 | 2013-01-16 | 华夏阀门有限公司 | High-pressure steam drain valve |
| CN102937201A (en) * | 2012-11-22 | 2013-02-20 | 南通市力沛流体阀业有限公司 | Air-toward steam exhausting valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167461A (en) * | 2018-01-31 | 2018-06-15 | 黑龙江北方阀业有限责任公司 | It is a kind of to idle discharge steam valve |
| CN108150655A (en) * | 2018-02-12 | 2018-06-12 | 无锡智能自控工程股份有限公司 | Pressure Steam Valve seat fixing structure |
| CN109114236B (en) * | 2018-09-19 | 2020-02-07 | 南通国电电站阀门股份有限公司 | Nuclear power island core reheat steam main flow control valve |
| CN111609146A (en) * | 2019-02-26 | 2020-09-01 | 北京航天石化技术装备工程有限公司 | Pressurizing pilot type high-temperature high-pressure labyrinth valve |
| CN109780314A (en) * | 2019-03-21 | 2019-05-21 | 无锡智能自控工程股份有限公司 | A kind of suspension type labyrinth tube-in-tube structure |
| CN112984207A (en) * | 2021-04-09 | 2021-06-18 | 艾肯（江苏）工业技术有限公司 | Pressure reducing valve |
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|---|---|
| CN107314152B (en) | 2023-07-14 |
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