CN203718093U - Special hard sealing spherical valve for large-diameter coal slurry transportation - Google Patents
Special hard sealing spherical valve for large-diameter coal slurry transportation Download PDFInfo
- Publication number
- CN203718093U CN203718093U CN201420091487.4U CN201420091487U CN203718093U CN 203718093 U CN203718093 U CN 203718093U CN 201420091487 U CN201420091487 U CN 201420091487U CN 203718093 U CN203718093 U CN 203718093U
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- Prior art keywords
- ball valve
- valve
- spheroid
- hard seal
- hole
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 239000003250 coal slurry Substances 0.000 title claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 21
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a special hard sealing spherical valve for large-diameter coal slurry transportation. The hard sealing spherical valve comprises a valve body, a flusher and a sphere, wherein a plurality of nozzle openings are formed in the flusher; a flushing hole corresponding to the nozzle openings is formed in the valve body; the outer end opening of the flushing hole is connected with the nozzle openings; a flush nozzle is formed in inner end opening communicated with the interior of the spherical valve; besides, the hard spherical valve further comprises a support sleeve supporting the driving end of the sphere; a bearing in rotational connection with the sphere is arranged on the support sleeve; the peripheral surface of the support sleeve and the peripheral surface of a lower valve rod are embedded into and fixed on a sealing annular plate on two connecting end surfaces of the sphere; a through hole is formed in each side body of the spherical valve; a sealed space communicated with the through holes is formed by the side bodies and valve seats which are propped against one another; the outer end openings of the through holes on the two sides are connected through a balanced pipeline. According to the utility model, residual slurry of the spherical valve can be effectively cleaned; the influences on the flexibility of opening and closing the spherical valve caused by lumps are eliminated. Therefore, the operation torque is effectively reduced.
Description
Technical field
The utility model relates to valve technology field, and particularly a kind of heavy caliber coal slurry is carried special-purpose hard seal ball valve.
Background technique
At present, in the field of COAL SLURRY PIPE TRANSPORT technology, it is one of key equipment that heavy caliber coal slurry is carried special-purpose hard seal ball valve.Hard close ball valve can cut off, distributes and change the flow direction of coal slurry in coal slurry pipeline, and then controls the break-make of coal slurry pipe-line system and carry coal slurry amount.As shown in Figure 1, in prior art, hard seal ball valve can't meet the specific (special) requirements of COAL SLURRY PIPE TRANSPORT operating mode completely, has following defect:
First, the existing ball valve for carrying with slurries body, conventionally adopt single nozzle to rinse valve clean, because this kind of valve rinse capability is low, very easily cause slurries precipitation caking, cause the circulation of this hard seal ball valve poor, reduced reliability and the persistency of course of conveying, and the operational torque that causes valve opening to be closed is larger; Meanwhile, thoroughly clean residual slurries, also, by destroying the sealability of two ends valve seat 01, increase the risk that conveyance conduit leaks not in time, cause the serious waste of resource.
Secondly, nested connection between the upper valve rod 03 of existing hard seal ball valve and spheroid 02, and drive spheroid 02 rotation by upper valve rod 03, lower valve rod 04 supporting and location spheroid 02 center and relatively rotating with spheroid 02.And, the nothing centralized positioning reliably under upper valve rod 03 drives of the drive end of spheroid 02, although there is spheroid 02 center, the upper support of employing cover location in prior art, but there is larger area of contact between this upper support cover and spheroid 02, surface friction drag is large, thereby the operation moment of torsion that makes upper valve rod 03 drive spheroid 02 to rotate is larger, will cause final controlling element specification larger, obviously increased product cost, and, the pressure loss that slurries are carried in pipeline is large, and the sensitivity that greatly reduces cut-out is low, is seriously restricting the service behaviour of ball valve.
In addition, in hard seal ball valve working procedure, its spheroid 02 is under the effect of internal pressure, valve seat 01 motion to one end, in existing technology, adopt dish spring 05 elastic component such as grade to regulate the active force of two valve seats 01, but regulation range and sensitivity are lower, cannot Fast-Balance two valve seats 01 and spheroid 02 between active force, cause valve seat 01 large with the frictional force of spheroid 02, increased equally the operational torque that upper valve rod 03 drives spheroid 02 to rotate.
In view of this, need badly as carrying caking slurries pipeline, for coal slurry delivering pipe, provide a kind of hard seal ball valve especially, solve existing hard seal ball valve larger problem of operational torque when opening and closing, improve service behaviour and the Acceptable life of hard seal ball valve, to guarantee reliability and the persistency of COAL SLURRY PIPE TRANSPORT.
Model utility content
Defect based on existing in prior art, the technical problems to be solved in the utility model is to provide a kind of heavy caliber coal slurry to carry special-purpose hard seal ball valve, by the optimal design to this hard seal ball valve arrangement, solve hard seal ball valve larger problem of operational torque when opening and closing, thereby effectively improve the service behaviour of hard seal ball valve in pipe applications and work working life.
The hard seal ball valve that the utility model provides is applied to carry in the pipeline of slurries, in the delivering pipe of the slurries that are specially adapted to easily to lump.This hard seal ball valve comprises valve body, Rinsing unit and for regulating the valve opening of described hard seal ball valve or the spheroid of closing, wherein, described Rinsing unit arranges a plurality of nozzle holes, and described valve body is offered and the corresponding flushing hole of described nozzle hole; The external port of described flushing hole connects described nozzle hole, and the inner port that is communicated with described ball valve inside arranges flooding nozzle.
Preferably, described Rinsing unit arranges two flushing lines, and described in each, flushing line evenly arranges a plurality of described nozzle holes, and two described flushing lines are arranged at respectively suction side and the outlet side of described ball valve.
Preferably, described flushing line is arc pipeline, and described nozzle hole is evenly arranged at described arc pipeline.
Preferably, described ball valve also comprises the supporting sleeve that supports described ball drive end, and described supporting sleeve is provided with the bearing that is rotationally connected described spheroid.
Preferably, between the lower valve rod of described ball valve and described spheroid, bearing is set.
Preferably, the outer circumferential face of described supporting sleeve and described lower valve rod is nested sealing ring flat-plate all, and described sealing ring flat-plate is fixed on the end face of two connecting ends of described spheroid.
Preferably, two connecting ends of described spheroid are all offered the annular groove of accommodating described sealing ring flat-plate.
Preferably, on every side lateral body of described ball valve, all offer through hole, form the seal space that is communicated with described through hole between described lateral body and the valve seat connecting, the external port of through hole connects by equalizing line described in both sides.
Preferably, the lateral body inner side that valve seat pressure ring is fixed on described ball valve is set; Described valve seat pressure ring, described lateral body and described valve seat form described seal space.
Preferably, described valve seat pressure ring, described lateral body and the described valve seat place of cooperatively interacting all arrange seal ring.
The hard seal ball valve that the utility model provides comprises valve body, Rinsing unit and for regulating the valve opening of hard seal ball valve or the spheroid of closing.Compared with prior art, the utility model is optimized improvement for the structure of hard seal ball valve, the manual dexterity when opening or closing to promote hard seal ball valve.For Rinsing unit, a plurality of nozzle holes are set, and the flushing hole that each nozzle hole is offered with valve body is corresponding, increase the flushing liquid that sprays into ball valve inside, improve cleaning ability; For flushing hole, be external port connecting spray nozzle mouth, inner port arranges the through hole of flooding nozzle, so, can make high pressure washing liquid enter flushing hole by Rinsing unit, and disperses to spray into the space between valve body and spheroid by flooding nozzle.
Obviously, by the nozzle hole of a plurality of diverse locations in Rinsing unit, can realize from different orientations degree the space between valve body and spheroid is cleaned comprehensively and effectively, evade in prior art single nozzle rinse device cleaning ability low, cause the residual phenomenon of slurries.And then, can clean fast and effectively the residual slurries in ball valve, eliminate the flexibility that caking hinders valve opening or closes, thereby, effectively reduce operational torque.
Especially, this programme is not only applicable to heavy caliber coal slurry and carries special-purpose hard seal ball valve, meanwhile, is applicable to slag slurry pipeline hard seal ball valve, effectively to improve the usability of hard seal ball valve in slag slurry pipe conveying procedure yet.
In preferred version of the present utility model, ball valve also comprises the supporting sleeve of supporting sephere drive end, and between supporting sleeve and spheroid, bearing is set, this bearing rotary be dynamically connected supporting sleeve and spheroid; That is to say, at the abutting end of existing spheroid and upper valve rod, supporting sleeve is set, between the outer circumferential face of this supporting sleeve and the inner peripheral surface of spheroid, bearing is set.So, rotating upper valve rod unlatching or closing in ball valve process, upper valve rod drives spheroid to rotate, and by bearing, can effectively reduce the resistance while relatively rotating between this spheroid and supporting sleeve, obviously, by the relative Placement between bearing optimal design spheroid and supporting sleeve is set, can effectively reduce friction factor between the two, thereby reduce the operational torque that rotates upper valve rod, the fast shut-off ability of poppet.
In another preferred version of the present utility model, on every side lateral body of ball valve, all offer through hole, simultaneously, between lateral body and the valve seat connecting, form the seal space that is communicated with this through hole, that is to say, offer through hole with the offset surface of fixing lateral body of valve seat, and, this through hole is positioned at the top of the seal space that lateral body and valve seat form, and makes seal space and the through hole can conducting.Wherein, the external port of two side through hole connects by equalizing line, so, just can be communicated with the seal space of both sides, also just makes build-up pressure path between the valve seat of both sides.Under original state, the valve seat of equalizing line conducting both sides, and keep vacuum state, so that the pressure balance of both sides valve seat all seals with the tight butt of spheroid simultaneously, in the process of opening or closing at ball valve, spheroid is subject to the effect meeting of internal pressure to the valve seat motion of a side, thereby compression seal space, the motion stress being subject to is passed to opposite side by equalizing line, thereby the pressure of balance both sides valve seat, regulate pressure balance all to keep fitting tightly sealing with spheroid to guarantee both sides valve seat, the wear phenomenon of effectively having avoided one-sided valve seat to produce with spheroid under excessive pressure effect, simultaneously, can evade the large frictional force that large pressure lower valve base and spheroid produce, thereby effectively reduce the operational torque while rotating the rotation of upper valve rod driving spheroid.
Accompanying drawing explanation
Fig. 1 is the structural representation of hard seal ball valve in prior art;
Fig. 2 is the structural representation of hard seal ball valve described in embodiment;
Fig. 3 is that hard seal ball valve described in embodiment is along the axial structural representation of pipe laying;
Fig. 4 is the local enlarged diagram in A place shown in Fig. 3;
Fig. 5 is the partial schematic diagram of running in bearings between described supporting sleeve and described spheroid;
Fig. 6 is the local enlarged diagram in B place shown in Fig. 2.
In Fig. 1:
Valve seat 01, spheroid 02, upper valve rod 03, lower valve rod 04, dish spring 05.
In Fig. 2 to Fig. 6:
Valve body 1, spheroid 2, upper valve rod 3, lower valve rod 4, valve seat 5, lateral body 6, Rinsing unit 7, supporting sleeve 8, sliding bearing 9, valve seat pressure ring 10, sealing ring flat-plate 11, flooding nozzle 12, blowoff line 13, O RunddichtringO 14, flushing hole 101, through hole 601, nozzle hole 701, seal space K.
Embodiment
The problem that the hard seal ball valve providing based on prior art exists, core of the present utility model is to provide a kind of hard seal ball valve of operational torque can effectively reduce valve opening or close time, thereby promote ball valve operating sensitivity, extend the Acceptable life of ball valve.
In order to make the operator of the art understand better the utility model scheme, below in conjunction with Figure of description, the utility model is described in further detail.
Refer to shown in Fig. 2 and Fig. 3, wherein, Fig. 2 is the structural representation of hard seal ball valve described in embodiment; Fig. 3 is that hard seal ball valve described in embodiment is along the axial structural representation of pipe laying.
The hard seal ball valve that the utility model provides comprises valve body 1, Rinsing unit 7 and the spheroid 2 for regulating the valve opening of hard seal ball valve or closing.Unlike the prior art, this model utility is optimized improvement to the clean flushing mechanism of ball valve in existing technology.As shown in Figures 2 and 3, for Rinsing unit 7, a plurality of nozzle holes 701 are set for jet scrubbing liquid, and the flushing hole 101 that each nozzle hole 701 is offered with valve body 1 is corresponding; In the lump in conjunction with shown in Fig. 4, for flushing hole 101, be through hole 601 that can water conservancy diversion washing solution, the nozzle hole 701 of its external port and Rinsing unit 7 is tightly connected, and inner port arranges flooding nozzle 12.
That is to say, by the flushing hole 101 on valve body 1 by the washing solution conducting in Rinsing unit 7 to flooding nozzle 12 places, in the space that washing solution sprays into valve body 1 and spheroid 2 by flooding nozzle 12 under the effect of high pressure.Compared with prior art, a plurality of nozzle holes 701 of this Rinsing unit 7 can corresponding valve body 1 on different azimuth flushing hole 101, so that the space between valve body 1 and spheroid 2 is cleaned comprehensively and effectively, eliminate the phenomenon that obstruction spheroid 2 that residual slurries caking causes rotates, thereby, reduce operational torque, the sensitivity that poppet is opened or closed.
Simultaneously, this Rinsing unit 7 can carry out effective high pressure washing to the surface of contact between two ends valve seat 5 and spheroid 2 in time, reduce the wearing and tearing of residue to spheroid 2, guarantee to press reliably butt between valve seat 5 and spheroid 2, for the reliable service behaviour of ball valve provides safeguard.
As shown in Figure 3, Rinsing unit 7 in this programme arranges two flushing lines, and each flushing line all arranges four nozzle holes 701, to realize the flushing to ball valve inside different amount, solve that single position sprays into washing solution and the clean intensity that causes is low, the problem that flushing scope is little.Wherein, a flushing line is arranged at the suction side of ball valve, and another flushing line is arranged at the outlet side of ball valve.So, in ball valve working procedure, by flushing line is targetedly set, can effectively clean the suction side of ball valve and the residual slurries of outlet side, avoid luming after prolonged stay, for the sensitive work of ball valve provides reliable guarantee.
It should be noted that, the nozzle hole 701 in each flushing line, not only for arranging four, can arrange according to the required flushing cleaning ability of ball valve the nozzle hole 701 of varying number; That is to say, when under lower clean requirement, two symmetrical nozzle holes 701 can be set, or be uniformly distributed three nozzle holes 701, certainly, in order to adapt to higher clean requirement, four above nozzle holes 701 also can be set.Obviously, the quantity of nozzle hole 701 can meet effectively clean ball valve and all can.
In addition, the structure of its opening and closing of control also can be set for the nozzle hole 701 of flushing line, thereby control the actual position of rinsing the nozzle hole 701 of work.Further known, in flushing line, nozzle hole 701 can arrange a plurality ofly, and it is uniformly distributed on flushing line, and the position that can rinse as required and the requirement of rinsing residual slurries, regulates the opening and closing of controlling nozzle hole 701.That is to say, set a fairly large number of words of nozzle hole 701, clean ball valve that can greater strength; And the structure that nozzle hole 701 opening and closing are set can be optimized the rinse capability of 7 pairs of different slurries of Rinsing unit, promote the service behaviour of ball valve.
Further, flushing line is set to the circular arc pipeline coaxial with pipeline, as shown in Figure 3.Certainly, this arc pipeline also can be set to annular structure, the structure that is preferably set to circular arc can make full use of the high-pressure system of Rinsing unit 7, guarantee that washing solution sprays between valve body 1 and spheroid 2 with the state of high pressure, evade the flushing pressure that closed loop structure is communicated with washing solution to bring low, be convenient to install simultaneously.Obviously, preferably the circular arc pipeline structure form in this programme can effectively promote the flushing cleaning ability of Rinsing unit 7, thereby, eliminate the phenomenon that slurries lump, the operation moment of torsion when reducing ball valve unlatching or closing.
Meanwhile, valve body 1 bottom of this ball valve arranges discharge orifice, and the external port of this discharge orifice connects blowoff line 13.After washing solution is to valve body 1 interior flushing, the slurries after this high pressure washing converge to this discharge orifice, and export to thus blowoff line 13, finally slurries are given off to valve body 1 to guarantee the cleaning of valve body 1 inside.
In order further to improve the sensitivity that ball valve is opened or closed, guarantee the fast shut-off ability in ball valve working procedure, also can be optimized improvement to the drive end linkage structure of this hard seal ball valve.As shown in Figure 5, for spheroid 2 drive ends, supporting sleeve 8 is set, this supporting sleeve 8 is provided with the sliding bearing 9 that is rotationally connected spheroid 2, by supporting sleeve 8, coordinate with lower valve rod 4, thus spheroid 2 centers, location, the accuracy while improving spheroid 2 rotation, eliminates shift phenomenon; Simultaneously, sliding bearing 9 fixedly coordinates in the shell hole of upper valve rod 3 with supporting sleeve 8 axle journals and spheroid 2, rotating upper valve rod 3 unlatchings or closing in ball valve process, upper valve rod 3 drives spheroid 2 to rotate, by being set, sliding bearing 9 eliminates friction between spheroid 2 and supporting sleeve 8, thus the resistance while reducing spheroid 2 rotation.So, further reduce the operational torque that rotates upper valve rod 3, promote the service behaviour of ball valve.
Similarly, also can between the lower valve rod 4 of ball valve and spheroid 2, identical sliding bearing 9 be set, so arrange, can eliminate the friction between lower valve rod 4 and spheroid 2, further reduce the operational torque that rotates upper valve rod 3, improve spheroid 2 and rotate flexibility, for fast cut-off ball valve provides safeguard.
Stability and reliability in order to ensure sliding bearing 9 work; the outer circumferential face of supporting sleeve 8 and lower valve rod 4 is nested sealing ring flat-plate 11 all; sealing ring flat-plate 11 is bolted on the end face of connecting end of spheroid 2; and be nested in the inner ring surface of sealing ring flat-plate 11 and the outer circumferential face gluing, sealing of this supporting sleeve 8 of supporting sleeve 8, be nested in the inner ring surface of sealing ring flat-plate 11 and the outer circumferential face gluing, sealing of this lower valve rod 2 of lower valve rod 4.So, can effectively intercept slurries and the grains of sand and enter sliding bearing 9 joints, guarantee reliably working performance and the Acceptable life of sliding bearing 9.
Fixing based on sealing ring flat-plate 11 and seal function requirement, the inner ring surface of sealing ring flat-plate 11 arranges the draw-in groove of placing O RunddichtringO 14, so, can improve by setting up O RunddichtringO 14 sealing of sealing ring flat-plate 11, for effectively eliminating slurries and the grains of sand, the wearing and tearing of sliding bearing 9 be provided safeguard.
In addition, in spheroid 2 and sealing ring flat-plate 11 joints, offer the groove of accommodating sealing ring flat-plate 11, make to seal ring flat-plate 11 and be fastened in groove, be beneficial to sealing ring flat-plate 11 is installed, and the fixing stability of lift-off seal ring flat-plate 11 and the reliability of sealing.
It should be noted that, the bearing in this programme is sliding bearing 9, certainly, is not limited to sliding bearing herein, for example: also can be rolling bearing or other rotatable parts, meet and reduce friction, the member that reduces to operate moment of torsion all can.
Please in the lump in conjunction with shown in Fig. 2 and Fig. 6, on every side lateral body 6 of spheroid 2, all offer through hole 601, the external port of two side through hole 601 connects by equalizing line, and, the valve seat pressure ring 10 that is fixed on lateral body 6 internal layers is set in this programme, these valve seat pressure ring 10 butt valve seats 5, thus valve seat 5 moving radially along pipeline limited., by valve seat pressure ring 10, lateral body 6 and valve seat 5, be interconnected and fixed meanwhile, form the seal space K that is communicated with through hole 601, so, the valve seat 5 of both sides is by through hole 601 and the equalizing line build-up pressure path of sealing space K top.
Under original state, in equalizing line, put into liquid and keep vacuum state, make the valve seat 5 of both sides in pressure balance, and the valve seat 5 of both sides all seal with the tight butt of spheroid 2.In the process of opening or closing at ball valve, spheroid 2 is to 5 motions of one end valve seat under the effect of internal pressure, and now, the valve seat 5 of 2 pairs of these ends of spheroid produces pressure, thereby makes valve seat 5 compression seal space K, and then the through hole 601 on compression lateral body 6; So, the liquid in equalizing line can transmit rapidly this power, drives another valve seat 5 to move round about, thereby, regulate pressure balance to make the valve seat 5 of both sides all keep fitting tightly sealing with spheroid 2.Obviously, by this equalizing line, can effectively reduce the excessive larger frictional force causing of pressure between one-sided valve seat 5 and spheroid 2, thereby evade spheroid 2 wear phenomenons, and effectively reduce the operational torque while rotating upper valve rod 3 driving spheroids 2 rotation, improve the fast shut-off ability of ball valve.
In this programme, in equalizing line, adopt liquid state can effectively transmit fast power as medium, compare gas and just transmit power after self compresses, more meet ball valve and rapid sensitive is cut off to the requirement of ability.
It should be noted that, seal space K is the sealing area that between valve seat pressure ring 10, lateral body 6 and valve seat 5 threes, the face of butt forms mutually herein.In addition, also can directly form with the valve seat connecting 5 the seal space K that is communicated with through hole 601 by lateral body 6; That is to say, valve seat 5 is offered shrinkage pool with lateral body 6 through hole 601 places of connecting, and makes it as seal space K.When mounted, make this shrinkage pool corresponding with through hole 601, thereby both sides valve seat 5 is conducted.
On this basis, valve seat pressure ring 10, lateral body 6 and valve seat 5 places of cooperatively interacting all arrange seal ring sealing, guarantee the effective sealing of seal space K, for equalizing line balance valve seat 5 pressure provide more reliably, ensure.
Above hard seal ball valve provided by the utility model is described in detail.Only for object lesson of the present utility model, set forth herein, the explanation of above specific embodiment is just for helping to understand method of the present utility model and core concept thereof.It should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model feature, if can also make these improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a heavy caliber coal slurry is carried special-purpose hard seal ball valve, comprise valve body (1), Rinsing unit (7) and for regulating the valve opening of described hard seal ball valve or the spheroid of closing (2), it is characterized in that, described Rinsing unit (7) arranges a plurality of nozzle holes (701), and described valve body (1) is offered and the corresponding flushing hole (101) of described nozzle hole (701); The external port of described flushing hole (101) connects described nozzle hole (701), and the inner port that is communicated with described ball valve inside arranges flooding nozzle (12).
2. hard seal ball valve according to claim 1, it is characterized in that, described Rinsing unit (7) arranges two flushing lines, and described in each, flushing line evenly arranges a plurality of described nozzle holes (701), and two described flushing lines are arranged at respectively suction side and the outlet side of described ball valve.
3. hard seal ball valve according to claim 2, is characterized in that, described flushing line is arc pipeline, and described nozzle hole (701) is evenly arranged at described arc pipeline.
4. hard seal ball valve according to claim 3, is characterized in that, described ball valve also comprises the supporting sleeve (8) that supports described spheroid (2) drive end, and described supporting sleeve (8) is provided with the bearing that is rotationally connected described spheroid (2).
5. hard seal ball valve according to claim 4, is characterized in that, between the lower valve rod of described ball valve (4) and described spheroid (2), bearing is set.
6. hard seal ball valve according to claim 5, it is characterized in that, the outer circumferential face of described supporting sleeve (8) and described lower valve rod (4) is nested sealing ring flat-plate (11) all, and described sealing ring flat-plate (11) is fixed on the end face of two connecting ends of described spheroid (2).
7. hard seal ball valve according to claim 6, is characterized in that, two connecting ends of described spheroid (2) are all offered the annular groove of accommodating described sealing ring flat-plate (11).
8. according to the hard seal ball valve described in any one in claim 1 to 5, it is characterized in that, on every side lateral body (6) of described ball valve, all offer through hole (601), between described lateral body (6) and the valve seat connecting (5), form the seal space (K) that is communicated with described through hole (601), the external port of through hole (601) connects by equalizing line described in both sides.
9. hard seal ball valve according to claim 8, is characterized in that, lateral body (6) inner side that valve seat pressure ring (10) is fixed on described ball valve is set; Described valve seat pressure ring (10), described lateral body (6) form described seal space (K) with described valve seat (5).
10. hard seal ball valve according to claim 8, is characterized in that, described valve seat pressure ring (10), described lateral body (6) and described valve seat (5) place of cooperatively interacting all arrange seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091487.4U CN203718093U (en) | 2014-02-28 | 2014-02-28 | Special hard sealing spherical valve for large-diameter coal slurry transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091487.4U CN203718093U (en) | 2014-02-28 | 2014-02-28 | Special hard sealing spherical valve for large-diameter coal slurry transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718093U true CN203718093U (en) | 2014-07-16 |
Family
ID=51157244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420091487.4U Expired - Lifetime CN203718093U (en) | 2014-02-28 | 2014-02-28 | Special hard sealing spherical valve for large-diameter coal slurry transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718093U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864505A (en) * | 2016-06-07 | 2016-08-17 | 洛阳海惠新材料股份有限公司 | Protecting device of condensate discharge valve of oil storage tank |
| CN107489781A (en) * | 2017-09-18 | 2017-12-19 | 江苏诚功阀门科技有限公司 | The assembly technology of fixing ball valve |
| CN111486248A (en) * | 2019-12-27 | 2020-08-04 | 安徽铜都流体科技股份有限公司 | Slurry ball valve for shield tunneling machine |
-
2014
- 2014-02-28 CN CN201420091487.4U patent/CN203718093U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864505A (en) * | 2016-06-07 | 2016-08-17 | 洛阳海惠新材料股份有限公司 | Protecting device of condensate discharge valve of oil storage tank |
| CN107489781A (en) * | 2017-09-18 | 2017-12-19 | 江苏诚功阀门科技有限公司 | The assembly technology of fixing ball valve |
| CN111486248A (en) * | 2019-12-27 | 2020-08-04 | 安徽铜都流体科技股份有限公司 | Slurry ball valve for shield tunneling machine |
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