CN115638369B - Boiler pressure vessel with anti-leakage structure - Google Patents
Boiler pressure vessel with anti-leakage structure Download PDFInfo
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- CN115638369B CN115638369B CN202211659929.6A CN202211659929A CN115638369B CN 115638369 B CN115638369 B CN 115638369B CN 202211659929 A CN202211659929 A CN 202211659929A CN 115638369 B CN115638369 B CN 115638369B
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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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Abstract
The invention discloses a boiler pressure container with a leakage-proof structure, which comprises an annular open fork type expansion sealing pressing mechanism, a suspension type top cover mechanism, a self-adaptive telescopic crack filling mechanism and an integrated pressure container assembly. The invention belongs to the technical field of pressure vessels, in particular to a boiler pressure vessel with a leakage-proof structure; the invention considers that the gap width of the metal sheet is mainly related to the variation of the diameter, so the invention creatively provides the annular open fork type expansion sealing pressing mechanism and the suspension type top cover mechanism based on the compensation principle, and through the mutual matching of the annular open fork type expansion sealing pressing mechanism and the suspension type top cover mechanism, the telescopic filling block can be pushed out without power in the process of pre-tightening the top support, and the pushed telescopic filling block and the metal sheet form a complete circle together, thereby solving the technical problem that the continuity cannot be kept after the metal part is expanded.
Description
Technical Field
The invention belongs to the technical field of pressure containers, and particularly relates to a boiler pressure container with an anti-leakage structure.
Background
The pressure vessel is a common storage easy for large-scale factories such as boilers and the like, is generally used for storing high-pressure gas, is mostly integrally formed or welded in sections due to the strength requirement, and in short, except for an upper cover, other detachable places are not provided, so that all parts entering the neck of the pressure vessel for sealing have to be smaller than the neck of the pressure vessel in diameter, and the parts have to be expanded when the neck of the pressure vessel is sealed by the parts smaller than the neck of the pressure vessel.
There are probably two expansion modes currently available for such conditions:
a: similar to an expansion bolt, a top support for the outside is formed by the splitting of an iron sheet;
b: the liquid bag or the air bag is inflated integrally to fill the gap.
Above-mentioned two kinds of current schemes, gasbag or liquid bag are because intensity is not enough, easily leak, can't be applied to this operating mode, and the biggest problem of A scheme is exactly when the jag props up, and the support position is not continuous, but has the clearance, and for pressure vessel, gapped position is because there is not rigid part to support in inside, consequently has very big risk of leaking.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a boiler pressure vessel with an anti-leakage structure based on a full-angle expansion top support; the supporting material with enough strength can deform in a small amplitude, but is difficult to flatten, the surface is continuous when the diameter is increased, and the gap width of the metal sheet is mainly related to the variation of the diameter.
The technical scheme adopted by the invention is as follows: the invention provides a boiler pressure container with an anti-leakage structure, which comprises an annular open fork type expansion sealing pressing mechanism, a suspension type top cover mechanism, a self-adaptive telescopic crack filling mechanism and an integrated pressure container assembly, wherein the annular open fork type expansion sealing pressing mechanism is arranged on the suspension type top cover mechanism in a lifting manner, the suspension type top cover mechanism is lifted by an external lifting machine, after the annular open fork type expansion sealing pressing mechanism is completely sealed and fixed, lifting equipment can be removed, and the problem that a reusable metal sealing device cannot expand in a full angle is solved by the annular open fork type expansion sealing pressing mechanism; suspension type top cap mechanism locates in the integral type pressure vessel subassembly, through the relative motion of annular fork expansion seal hold-down mechanism of opening and suspension type top cap mechanism, can open the expansion of fork expansion seal hold-down mechanism through the annular and extrude the elasticity sealing washer on the inner wall of integral type pressure vessel subassembly to fix in the notch in the pressure vessel, during suspension type top cap mechanism was located in the slip of the telescopic crack filling mechanism block of self-adaptation, through stretching out of the telescopic crack filling mechanism of self-adaptation, can fill the gap between the sheetmetal, played the expanded technological effect of full angle.
Furthermore, the annular opening fork type expansion sealing and pressing mechanism comprises an expansion top support assembly and a lifting guide assembly, wherein the expansion top support assembly is arranged on the lifting guide assembly, and the lifting guide assembly is arranged on the suspension type top cover mechanism in a lifting mode.
Preferably, the expansion jacking component comprises a pressure-sensitive self-pretightening disc and a split flexible ring, wherein a ring closing part is arranged on the split flexible ring, the split flexible ring is fixedly connected to the pressure-sensitive self-pretightening disc through the ring closing part, metal sheets are annularly and uniformly distributed above the ring closing part of the split flexible ring, the thickness and the material of the metal sheets determine that the metal sheets can be bent in a small amplitude, but the metal sheets are difficult to fold, so that when the internal pressure of the pressure container rises, the pressure is insufficient to damage the shapes of the metal sheets, round-head slope drilling parts are arranged on the upper edges of the metal sheets, the metal sheets are closed in a free state, the metal sheets are separated from each other when expanding, pointed cone crack parts are arranged between adjacent and inclined metal sheets, the metal sheets can be guided through the slope round-head drilling parts, the resistance of drilling is reduced, and the damage to the elastic sealing ring is avoided; adjacent, be equipped with straight crack portion between the vertically sheetmetal, pointed cone crack portion is identical with the filling block cutting part, and straight crack portion is identical with the straight portion of filling block, can fill up the clearance between the sheetmetal through the telescopic filling block of volume of stretching out to realize full angle shore expansion.
The lifting guide assembly comprises a conical round platform, a central screw and a guide slide rod, the conical round platform is arranged on a pressure-sensitive self-pretightening disc, the conical round platform and the pressure-sensitive self-pretightening disc are coaxially arranged, the side surface of the conical round platform is provided with an inclined conical surface of the round platform, the central screw is fixedly connected to the central position of the conical round platform, annular uniform distribution of the guide slide rod is arranged on the conical round platform, the guide slide rod is clamped and slides in the suspension type top cover mechanism, the conical surface is limited to the telescopic filling block, the conical round platform can push the telescopic filling block to extend out when the conical round platform rises, when the specified position is reached, the outer surface of the telescopic filling block is just filled with the conical crack part and the straight crack part, and the side surface of a metal sheet forms a complete ring, so that the elastic sealing ring is supported and extruded.
Furthermore, suspension type top cap mechanism includes spacing base, hoist and mount subassembly and pretension drive assembly, spacing base block is located in the integral type pressure vessel subassembly, hoist and mount subassembly is located on the spacing base, pretension drive assembly locates on the hoist and mount subassembly.
Preferably, the bottom of spacing base is equipped with spacing seat annular boss, the surface of spacing seat annular boss is equipped with spacing seat guiding cone face, and spacing seat guiding cone face has the guide effect to the sheetmetal, and through the direction of spacing seat guiding cone face, the sheetmetal can warp the inflation towards the outside, when losing spacing of spacing seat guiding cone face, the sheetmetal still can resume original shape, annular equipartition is equipped with the spacing seat direction crack that link up on the spacing seat annular boss, the central point of spacing base puts and is equipped with spacing seat centre bore, it is equipped with spacing seat guiding hole to go back annular equipartition on the spacing base, the slip of direction slide bar block is located in the spacing seat guiding hole.
As a further preferred option of the invention, the hoisting assembly comprises a hoisting disc and hoisting latches, the hoisting disc is arranged on the limiting base, the hoisting latches are annularly and uniformly distributed on the hoisting disc, the hoisting disc is fixedly connected with the hoisting latches, and external hoisting equipment can hoist the suspended top cover mechanism through the hoisting latches.
As a further preferable mode of the invention, the pre-tightening driving component comprises a pre-tightening nut, a pre-tightening driven bevel gear, a pre-tightening motor and a pre-tightening driving bevel gear, the pre-tightening nut is rotatably arranged in a central hole of the limiting seat, the pre-tightening nut is in threaded connection with the central screw, the pre-tightening driven bevel gear is clamped on the pre-tightening nut, the pre-tightening motor is arranged on the hoisting disc, the pre-tightening driving bevel gear is clamped on an output shaft of the pre-tightening motor, the pre-tightening driving bevel gear is in meshed connection with the pre-tightening driven bevel gear, and when the interior of the pressure container body is not filled with a medium and pressurized, the annular split fork type expansion sealing and compressing mechanism is pre-tightened by the pre-tightening motor to ensure certain sealing performance.
Further, telescopic crack filling mechanism of self-adaptation includes telescopic filling block, broad width elastic webbing and elastic webbing fixing base, telescopic filling block slides and locates in spacing seat direction crack, be equipped with the straight portion of filling block on the telescopic filling block, the straight portion of filling block is located in straight crack portion, still be equipped with the filling block cutting part on the telescopic filling block, the filling block cutting part is located pointed cone crack portion, elastic webbing fixing base rigid coupling in the bottom of spacing base, nut pretightening rotates and locates in the elastic webbing fixing base, broad width elastic webbing locates between telescopic filling block and the elastic webbing fixing base.
Furthermore, the integrated pressure container assembly comprises a pressure container body and an elastic sealing ring, a pressure container neck is arranged on the pressure container body, a pressure container inner notch is formed in the inner wall of the pressure container neck, and through limiting of the pressure container inner notch, when the internal pressure of the pressure container body rises within a certain range, not only can the pressure sensing self-pretightening disc not be pushed out, but also the extrusion force borne by the elastic sealing ring is increased, and the sealing performance is improved; the elastic sealing ring is clamped in the neck of the pressure container, a sealing ring flange is arranged on the elastic sealing ring, and the sealing ring flange is arranged on the neck of the pressure container.
The flexible ring of fork of opening is the elastic metal material, the sealing washer flange is flexible material.
The invention with the structure has the following beneficial effects:
(1) The suspension type top cover mechanism is hoisted through an external hoisting machine, after the suspension type top cover mechanism is completely sealed and fixed, hoisting equipment can be removed, and the problem that the metal sealing device which can be recycled cannot be expanded in a full angle is solved through the annular open fork type expansion sealing and pressing mechanism;
(2) Through the relative movement of the annular open fork type expansion sealing and pressing mechanism and the suspension type top cover mechanism, the elastic sealing ring can be extruded on the inner wall of the integrated pressure container assembly through the expansion of the annular open fork type expansion sealing and pressing mechanism and is fixed in the inner notch of the pressure container;
(3) The gaps among the metal sheets can be filled through the extension of the self-adaptive telescopic crack filling mechanism, and the technical effect of full-angle expansion is achieved;
(4) The thickness and material of the metal sheet determine that the metal sheet can be bent in a small degree, but is difficult to fold, so that when the pressure inside the pressure vessel rises, the pressure is not enough to destroy the shape of the metal sheet;
(5) The metal sheet can be guided by the slope round-head drilling part, the drilling resistance is reduced, and the elastic sealing ring is prevented from being damaged;
(6) The pointed cone crack part is matched with the edge part of the filling block, the straight crack part is matched with the straight part of the filling block, and the gap between the metal sheets can be filled up by the extension telescopic filling block, so that full-angle jacking expansion is realized;
(7) The telescopic filling block is limited by the conical surface of the circular truncated cone, so that the conical circular truncated cone can push the telescopic filling block to extend out while rising, when the conical circular truncated cone reaches a specified position, the outer surface of the telescopic filling block is just filled with the pointed conical crack part and the straight crack part, and the pointed conical crack part and the straight crack part and the side surface of the metal sheet form a complete circular ring, so that the elastic sealing ring is propped and extruded;
(8) The limiting seat guiding conical surface has a guiding function on the metal sheet, the metal sheet can deform and expand towards the outer side through the guiding of the limiting seat guiding conical surface, and when the limiting of the limiting seat guiding conical surface is lost, the metal sheet can recover the original shape;
(9) When the pressure container body is not filled with a medium and pressurized, the annular open fork type expansion sealing and compressing mechanism can be pre-tightened by the pre-tightening motor, so that certain sealing performance is ensured;
(10) Through the spacing of the notch in the pressure container, when the internal pressure of the pressure container body rises within a certain range, not only the pressure sensing can not be pushed out from the pre-tightening disc, but also the extrusion force borne by the elastic sealing ring is increased, and the sealing property is improved accordingly.
Drawings
FIG. 1 is a perspective view of a boiler pressure vessel having a leakage preventing structure according to the present invention;
FIG. 2 is a front view of a boiler pressure vessel having a leakage preventing structure according to the present invention;
FIG. 3 is a plan view of a boiler pressure vessel having a leakage preventing structure according to the present invention;
FIG. 4 isbase:Sub>A cross-sectional view taken along section line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken along section line B-B of FIG. 4;
FIG. 6 is a schematic structural diagram of an annular open-fork expansion seal pressing mechanism of a boiler pressure vessel with a leakage-proof structure according to the present invention;
FIG. 7 is a schematic structural diagram of a suspended ceiling mechanism of a boiler pressure vessel having a leakage prevention structure according to the present invention;
FIG. 8 is a schematic structural diagram of an adaptive telescopic crack filling mechanism of a boiler pressure vessel with a leakage prevention structure according to the present invention;
FIG. 9 is a schematic structural view of an integrated pressure vessel assembly of a boiler pressure vessel having a leakage prevention structure according to the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 4 at I;
FIG. 11 is an enlarged view of a portion of FIG. 4 at II;
fig. 12 is a partial enlarged view of fig. 5 at iii.
Wherein, 1, an annular forked expansion sealing hold-down mechanism, 2, a suspended top cover mechanism, 3, a self-adaptive telescopic crack filling mechanism, 4, an integrated pressure container component, 5, an expansion top support component, 6, a lifting guide component, 7, a pressure-sensing self-pretightening disc, 8, a forked flexible circular ring, 9, a conical circular table, 10, a central screw, 11, a guide slide rod, 12, a circular ring closing part, 13, a metal sheet, 14, a slope circular head drilling part, 15, a pointed cone crack part, 16, a straight crack part, 17, a circular table conical surface, 18, a limiting base, 19, a hoisting component, 20, a pretightening driving component, 21, a limiting seat annular boss, 22, a limiting seat guide conical surface, 23, a limiting seat guide crack, 24, a limiting seat center hole, 25, a limiting seat guide hole, 26, a hoisting disc, 27, a hoisting lock catch, 28, a pre-tightening nut, 29, a pre-tightening driven bevel gear, 30, a pre-tightening motor, 31, a pre-tightening driving bevel gear, 32, a telescopic filling block, 33, a wide elastic band, 34, an elastic band fixing seat, 35, a filling block straight part, 36, a filling block edge part, 37, a pressure container body, 38, an elastic sealing ring, 39, a pressure container neck part, 40, a pressure container inner notch, 41 and a sealing ring blocking edge.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 12, the invention provides a boiler pressure vessel with an anti-leakage structure, which comprises an annular open fork type expansion sealing pressing mechanism 1, a suspension type top cover mechanism 2, a self-adaptive telescopic crack filling mechanism 3 and an integrated pressure vessel component 4, wherein the annular open fork type expansion sealing pressing mechanism 1 is arranged on the suspension type top cover mechanism 2 in a lifting manner, the suspension type top cover mechanism 2 is lifted by an external lifting machine, after complete sealing and fixing, the lifting equipment can be removed, and the problem that a reusable metal sealing device cannot be expanded at a full angle is solved by the annular open fork type expansion sealing pressing mechanism 1; suspension type top cap mechanism 2 is arranged in integral type pressure vessel subassembly 4, relative motion through annular fork type expansion seal hold-down mechanism 1 and suspension type top cap mechanism 2, can extrude elasticity sealing washer 38 on the inner wall of integral type pressure vessel subassembly 4 through the inflation of annular fork type expansion seal hold-down mechanism 1, and fix in notch 40 in the pressure vessel, the telescopic crack filling mechanism of self-adaptation mechanism 3 block slides and locates in suspension type top cap mechanism 2, through stretching out of the telescopic crack filling mechanism of self-adaptation mechanism 3, can fill the gap between sheetmetal 13, play the expanded technological effect of full angle.
The integrated pressure container assembly 4 comprises a pressure container body 37 and an elastic sealing ring 38, wherein a pressure container neck 39 is arranged on the pressure container body 37, an inner pressure container notch 40 is arranged on the inner wall of the pressure container neck 39, and through the limit of the pressure container notch 40, when the internal pressure of the pressure container body 37 rises within a certain range, not only the pressure sensing can not be pushed out from the pre-tightening disc 7, but also the extrusion force borne by the elastic sealing ring 38 is increased, and the sealing performance is improved; the elastic sealing ring 38 is clamped in the neck 39 of the pressure container, the elastic sealing ring 38 is provided with a sealing ring rib 41, and the sealing ring rib 41 is arranged on the neck 39 of the pressure container.
Suspension type top cap mechanism 2 includes spacing base 18, hoist and mount subassembly 19 and pretension drive assembly 20, and during integral type pressure vessel subassembly 4 was located to spacing base 18 block, hoist and mount subassembly 19 was located on spacing base 18, and pretension drive assembly 20 was located on hoist and mount subassembly 19.
The bottom of limiting base 18 is equipped with limiting seat annular boss 21, the surface of limiting seat annular boss 21 is equipped with limiting seat guiding conical surface 22, limiting seat guiding conical surface 22 has the guide effect to sheetmetal 13, guide through limiting seat guiding conical surface 22, sheetmetal 13 can be towards outside deformation inflation, when losing limiting seat guiding conical surface 22's spacing, sheetmetal 13 still can resume original shape, annular equipartition is equipped with the spacing seat guide crack 23 that link up on limiting seat annular boss 21, limiting base 18's central point puts and is equipped with limiting seat centre bore 24, it is equipped with limiting seat guiding hole 25 still to annular equipartition on limiting base 18, guide slide bar 11 block slides and locates in limiting seat guiding hole 25.
The hoisting assembly 19 comprises a hoisting disc 26 and hoisting latches 27, the hoisting disc 26 is arranged on the limiting base 18, the hoisting latches 27 are annularly and uniformly arranged on the hoisting disc 26, the hoisting disc 26 is fixedly connected with the hoisting latches 27, and external hoisting equipment can hoist the suspension type top cover mechanism 2 through the hoisting latches 27.
The pre-tightening driving component 20 comprises a pre-tightening nut 28, a pre-tightening driven bevel gear 29, a pre-tightening motor 30 and a pre-tightening driving bevel gear 31, the pre-tightening nut 28 is rotatably arranged in a central hole 24 of the limiting seat, the pre-tightening nut 28 is in threaded connection with the central screw 10, the pre-tightening driven bevel gear 29 is clamped on the pre-tightening nut 28, the pre-tightening motor 30 is arranged on the hoisting disc 26, the pre-tightening driving bevel gear 31 is clamped on an output shaft of the pre-tightening motor 30, the pre-tightening driving bevel gear 31 is in meshed connection with the pre-tightening driven bevel gear 29, when no medium is filled in the pressure container body 37 and the pressure is increased through the pre-tightening motor 30, the annular open-fork type expansion sealing and compressing mechanism 1 is pre-tightened firstly, and certain sealing performance is ensured firstly.
The annular opening fork type expansion sealing and pressing mechanism 1 comprises an expansion top support assembly 5 and a lifting guide assembly 6, the expansion top support assembly 5 is arranged on the lifting guide assembly 6, and the lifting guide assembly 6 is arranged on the suspension type top cover mechanism 2 in a lifting mode.
The expansion top support assembly 5 comprises a pressure-sensitive self-pretightening disc 7 and a split flexible circular ring 8, a circular ring closing part 12 is arranged on the split flexible circular ring 8, the split flexible circular ring 8 is fixedly connected to the pressure-sensitive self-pretightening disc 7 through the circular ring closing part 12, metal sheets 13 are annularly and uniformly distributed above the circular ring closing part 12 of the split flexible circular ring 8, the thickness and the material of the metal sheets 13 determine that the metal sheets 13 can be bent in a small amplitude, but the metal sheets are difficult to fold, therefore, when the internal pressure of the pressure container rises, the pressure is insufficient to damage the shapes of the metal sheets 13, a slope round-head drilling part 14 is arranged on the upper edge of the metal sheets 13, the metal sheets 13 are closed in a free state, the metal sheets 13 are separated from each other during expansion, a pointed cone crack part 15 is arranged between the adjacent and inclined metal sheets 13, the metal sheets 13 can be guided for the metal sheets 13 through the slope round-head drilling part 14, the resistance of drilling is reduced, and the damage to the elastic sealing ring 38 is avoided; a straight crack part 16 is arranged between adjacent and vertical metal sheets 13, a pointed cone crack part 15 is matched with the edge part 36 of the filling block, the straight crack part 16 is matched with the straight part 35 of the filling block, and the gap between the metal sheets 13 can be filled up by extending the telescopic filling block 32, so that full-angle jacking expansion is realized.
The lifting guide assembly 6 comprises a conical circular truncated cone 9, a central screw rod 10 and a guide slide rod 11, the conical circular truncated cone 9 is arranged on the pressure-sensing self-pretightening disc 7, the conical circular truncated cone 9 and the pressure-sensing self-pretightening disc 7 are coaxially arranged, the side surface of the conical circular truncated cone 9 is provided with an inclined circular truncated cone conical surface 17, the central screw rod 10 is fixedly connected to the central position of the conical circular truncated cone 9, the guide slide rods 11 are uniformly distributed on the conical circular truncated cone 9 in an annular mode, the guide slide rods 11 are clamped and slidably arranged in the suspension type top cover mechanism 2, the telescopic filling block 32 is limited through the circular truncated cone conical surface 17, the conical circular truncated cone 9 can push the telescopic filling block 32 to extend out when the conical circular truncated cone 9 rises, when the specified position is reached, the outer surface of the telescopic filling block 32 is just filled with the pointed conical crack portion 15 and the straight crack portion 16, and the side surface of the metal sheet 13 forms a complete circular ring, and supporting and extruding of the elastic sealing ring 38 are achieved.
The telescopic crack filling device of self-adaptation 3 includes telescopic filling block 32, broad width elastic band 33 and elastic band fixing base 34, telescopic filling block 32 block slides and locates in spacing seat direction crack 23, telescopic filling block 32 has the sealing effect to spacing seat direction crack 23, be equipped with the straight portion 35 of filling block on the telescopic filling block 32, the straight portion 35 of filling block is arranged in straight crack portion 16, still be equipped with filling block cutting part 36 on the telescopic filling block 32, filling block cutting part 36 is arranged in sharp awl crack portion 15, elastic band fixing base 34 rigid coupling in the bottom of spacing base 18, pretension nut 28 rotates and locates in elastic band fixing base 34, broad width elastic band 33 is located between telescopic filling block 32 and the elastic band fixing base 34.
The forked flexible ring 8 is made of elastic metal, the sealing ring rib 41 is made of flexible material, and although the elastic sealing ring 38 is made of flexible material and can deform, the strength of the elastic sealing ring cannot allow the elastic sealing ring to pass through a hole smaller than the diameter of the elastic sealing ring.
When the device is used specifically, firstly, a user needs to place the elastic sealing ring 38 in the pre-tightening motor 30, and place the elastic sealing ring 38 to fall into the pressure container body 37 by the limit of the sealing ring flange 41; then, external hoisting equipment is needed to hoist the suspension type top cover mechanism 2 and the annular open fork type expansion sealing pressing mechanism 1 into the elastic sealing ring 38 through the hoisting lock catch 27;
then starting a pre-tightening motor 30, driving a pre-tightening nut 28 to rotate through the meshing transmission between a pre-tightening driving bevel gear 31 and a pre-tightening driven bevel gear 29, so that the annular forked expansion sealing and pressing mechanism 1 is lifted relative to the limiting base 18 under the guidance of the guide slide rod 11, and a certain gap is reserved among the neck 39 of the pressure container, the elastic sealing ring 38 and the limiting base 18;
when the metal sheet 13 rises, the metal sheet contacts the limiting seat annular boss 21, and under the guiding action of the limiting seat annular boss 21, the metal sheet 13 bends outwards to expand and push the elastic sealing ring 38 to expand and cling to the inner wall of the pre-tightening motor 30;
with the ascending of the annular split fork type expansion seal pressing mechanism 1, after the slope round-head drilling part 14 passes over the limiting seat guiding conical surface 22, the slope round-head drilling part drills vertically upwards, so that a gap between the metal sheets 13 consists of a pointed cone crack part 15 positioned below and a straight crack part 16 positioned above, and finally, the metal sheets 13 and the elastic sealing ring 38 together fill the whole inner notch 40 of the pressure vessel;
in the process that the pressure-sensitive self-pretightening disc 7 rises, the conical round table 9 also rises, and as the conical surface 17 of the round table is in sliding contact with the telescopic filling block 32, when the conical round table 9 of the telescopic filling block 32 rises, the telescopic filling block 32 overcomes the elasticity of the wide elastic belt 33 and slides and extends out, and finally the outer side surface of the telescopic filling block 32 and the outer side surface of the metal sheet 13 can form a complete circular ring together to achieve the effect of full-angle jacking;
by squeezing the elastic sealing ring 38 by the metal sheet 13, the elastic sealing ring 38 can be tightly attached to the inner wall of the neck 39 of the pressure container, so that on one hand, the sealing performance of the pressure container can be ensured, and on the other hand, enough friction force can be provided to prevent the annular open fork type expansion sealing pressing mechanism 1 and the suspension type top cover mechanism 2 from falling under the dead weight;
along with the rise of pressure of the inner wall of the pressure container, the pressure-sensing self-pretightening disc 7 has the trend of moving upwards due to different inner and outer pressure-bearing surfaces, the elastic sealing ring 38 can be further extruded, the sealing performance is improved, at the moment, the metal sheet 13 is clamped in the notch 40 in the pressure container, the annular open fork type expansion sealing and pressing mechanism 1 and the suspension type top cover mechanism 2 cannot be pushed out by pressure, the open fork type flexible circular ring 8 is wrapped outside the limiting base 18, and the telescopic filling block 32 has a sealing effect on the limiting base guide crack 23, so that the limiting base 18 cannot be under the pressure effect in the container, and cannot be pushed out by the pressure.
The above is the overall working process of the invention, and the steps are repeated when the device is used next time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A boiler pressure vessel with a leakage prevention structure is characterized in that: the device comprises an annular open fork type expansion sealing pressing mechanism (1), a suspension type top cover mechanism (2), a self-adaptive telescopic crack filling mechanism (3) and an integrated pressure container assembly (4), wherein the annular open fork type expansion sealing pressing mechanism (1) is arranged on the suspension type top cover mechanism (2) in a lifting mode, the suspension type top cover mechanism (2) is arranged in the integrated pressure container assembly (4), and the self-adaptive telescopic crack filling mechanism (3) is arranged in the suspension type top cover mechanism (2) in a clamping and sliding mode; the annular open fork type expansion sealing pressing mechanism (1) comprises an expansion jacking component (5) and a lifting guide component (6), wherein the expansion jacking component (5) is arranged on the lifting guide component (6), and the lifting guide component (6) is arranged on the suspended top cover mechanism (2) in a lifting mode;
the expansion top support assembly (5) comprises a pressure-sensitive self-pretightening disc (7) and a forked flexible circular ring (8), a circular ring closing part (12) is arranged on the forked flexible circular ring (8), the forked flexible circular ring (8) is fixedly connected to the pressure-sensitive self-pretightening disc (7) through the circular ring closing part (12), metal sheets (13) are annularly and uniformly distributed above the circular ring closing part (12) of the forked flexible circular ring (8), a slope round head drilling part (14) is arranged on the upper edge of each metal sheet (13), the metal sheets (13) are closed in a free state, the metal sheets (13) are mutually separated during expansion, a pointed cone crack part (15) is arranged between the adjacent and inclined metal sheets (13), and a straight crack part (16) is arranged between the adjacent and vertical metal sheets (13);
the lifting guide assembly (6) comprises a conical round table (9), a central screw rod (10) and a guide slide rod (11), the conical round table (9) is arranged on the pressure-sensing self-pretightening disc (7), the conical round table (9) and the pressure-sensing self-pretightening disc (7) are coaxially arranged, an inclined round table conical surface (17) is arranged on the side surface of the conical round table (9), the central screw rod (10) is fixedly connected to the central position of the conical round table (9), the guide slide rods (11) are uniformly distributed on the conical round table (9) in an annular mode, and the guide slide rods (11) are clamped and slidably arranged in the suspension type top cover mechanism (2);
the suspension type top cover mechanism (2) comprises a limiting base (18), a hoisting assembly (19) and a pre-tightening driving assembly (20), wherein the limiting base (18) is clamped in the integrated pressure container assembly (4), the hoisting assembly (19) is arranged on the limiting base (18), and the pre-tightening driving assembly (20) is arranged on the hoisting assembly (19);
the bottom of the limiting base (18) is provided with a limiting base annular boss (21), the outer surface of the limiting base annular boss (21) is provided with a limiting base guide conical surface (22), the limiting base annular boss (21) is annularly and uniformly provided with penetrating limiting base guide cracks (23), the central position of the limiting base (18) is provided with a limiting base central hole (24), the limiting base (18) is also annularly and uniformly provided with limiting base guide holes (25), and the guide slide rods (11) are clamped and slidably arranged in the limiting base guide holes (25);
the hoisting assembly (19) comprises a hoisting disc (26) and hoisting latches (27), the hoisting disc (26) is arranged on the limiting base (18), the hoisting latches (27) are annularly and uniformly distributed on the hoisting disc (26), the hoisting disc (26) is fixedly connected with the hoisting latches (27), and external hoisting equipment can hoist the suspended top cover mechanism (2) through the hoisting latches (27);
the pre-tightening driving assembly (20) comprises a pre-tightening nut (28), a pre-tightening driven bevel gear (29), a pre-tightening motor (30) and a pre-tightening driving bevel gear (31), the pre-tightening nut (28) is rotatably arranged in a central hole (24) of the limiting seat, the pre-tightening nut (28) is in threaded connection with the central screw (10), the pre-tightening driven bevel gear (29) is clamped on the pre-tightening nut (28), the pre-tightening motor (30) is arranged on a hoisting disc (26), the pre-tightening driving bevel gear (31) is clamped on an output shaft of the pre-tightening motor (30), and the pre-tightening driving bevel gear (31) is in meshed connection with the pre-tightening driven bevel gear (29);
the telescopic crack of self-adaptation mechanism (3) is filled including telescopic filling block (32), broad width elastic band (33) and elastic band fixing base (34), telescopic filling block (32) block slides and locates in spacing seat direction crack (23), be equipped with the straight portion of filling block (35) on telescopic filling block (32), the straight portion of filling block (35) is located straight crack portion (16), still be equipped with filling block cutting part (36) on telescopic filling block (32), filling block cutting part (36) are located sharp awl crack portion (15), elastic band fixing base (34) rigid coupling is in the bottom of spacing base (18), pretension nut (28) rotate and locate in elastic band fixing base (34), broad width elastic band (33) are located between telescopic filling block (32) and elastic band fixing base (34).
2. A boiler pressure vessel having a leakage preventing structure according to claim 1, wherein: integral type pressure vessel subassembly (4) include pressure vessel body (37) and elastic sealing ring (38), be equipped with pressure vessel neck (39) on pressure vessel body (37), be equipped with notch (40) in the pressure vessel on the inner wall of pressure vessel neck (39), elastic sealing ring (38) block is located in pressure vessel neck (39), be equipped with sealing ring flange (41) on elastic sealing ring (38), pressure vessel neck (39) is arranged in to sealing ring flange (41).
3. A boiler pressure vessel having a leakage preventing structure according to claim 2, wherein: the opening fork type flexible circular ring (8) is made of elastic metal, and the sealing ring flange (41) is made of flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211659929.6A CN115638369B (en) | 2022-12-23 | 2022-12-23 | Boiler pressure vessel with anti-leakage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211659929.6A CN115638369B (en) | 2022-12-23 | 2022-12-23 | Boiler pressure vessel with anti-leakage structure |
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| Publication Number | Publication Date |
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| CN115638369A CN115638369A (en) | 2023-01-24 |
| CN115638369B true CN115638369B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211659929.6A Active CN115638369B (en) | 2022-12-23 | 2022-12-23 | Boiler pressure vessel with anti-leakage structure |
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Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432347A (en) * | 1972-05-13 | 1976-04-14 | Ashworth & Co Ltd T | Pressure vessels |
| US8297463B2 (en) * | 2008-04-18 | 2012-10-30 | Perry Equipment Corporation | Closure for an equipment sub |
| JP2021076174A (en) * | 2019-11-07 | 2021-05-20 | トヨタ自動車株式会社 | Pressure container |
| CN211853509U (en) * | 2020-03-25 | 2020-11-03 | 苏州龙峰钛镍设备有限公司 | Anti-leakage pressure container |
| CN214840061U (en) * | 2020-11-16 | 2021-11-23 | 河北世昌汽车部件有限公司 | Sealing structure of high-pressure composite gas cylinder |
| CN112664819B (en) * | 2020-12-04 | 2022-09-27 | 广州东部发展燃气有限公司 | Sealing switch device and gas filter |
| CN214661976U (en) * | 2021-02-05 | 2021-11-09 | 李秀锋 | Locking sealed lid that moves based on pressure vessel |
| CN113445753A (en) * | 2021-06-23 | 2021-09-28 | 周昊呈 | Construction pressurizing device based on constructional engineering and use method thereof |
| CN217178272U (en) * | 2022-02-21 | 2022-08-12 | 潘线伟 | Anti-loosening sealing cover of pressure container |
| CN218056792U (en) * | 2022-03-11 | 2022-12-16 | 烟台茂恩新材料科技有限公司 | Storage tank sealing device with high reliability |
| CN217082178U (en) * | 2022-04-16 | 2022-07-29 | 辛占涛 | Special top cap of pressure vessel |
| CN217208923U (en) * | 2022-04-24 | 2022-08-16 | 青岛信泰压力容器有限公司 | Anti-loosening sealing cover of pressure container |
| CN115289386A (en) * | 2022-08-10 | 2022-11-04 | 安徽扬天金塑新能源装备有限公司 | Temperature deformation compensation device for low-temperature liquid oxygen manhole |
| CN115234833B (en) * | 2022-09-21 | 2022-12-09 | 江苏东南环保科技有限公司 | Pressure vessel for chemical reaction and sealing mechanism thereof |
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