CN121007255A

CN121007255A - A pipe connection structure for thermal power boilers

Info

Publication number: CN121007255A
Application number: CN202511545415.1A
Authority: CN
Inventors: 郭晓东; 李占红; 陈晋刚; 王磊; 贾云标; 张虎; 战纲; 黄建军; 王斌斌; 周洁
Original assignee: China Energy Engineering Group Shanxi No3 Electric Power Construction Co Ltd
Current assignee: China Energy Engineering Group Shanxi No3 Electric Power Construction Co Ltd
Priority date: 2025-10-28
Filing date: 2025-10-28
Publication date: 2025-11-25

Abstract

The invention discloses a thermal power boiler pipeline connecting structure, which comprises a connecting sleeve for connecting two pipeline bodies, wherein limiting wrapping rings are fixed at two ends of the connecting sleeve, expansion sealing rings are fixed on the inner walls of the two limiting wrapping rings, outer sealing rings matched with the expansion sealing rings are embedded and fixed on the surfaces of the two pipeline bodies, and the expansion sealing rings are of hollow design. This thermal power boiler pipeline connection structure, in the connection process, drive push rod can contact with the kickboard and extrude the kickboard in entering into the adapter sleeve along with the pipeline body, and the kickboard is pressed and then takes place to rotate, and then promotes to push away the gas plug displacement to make the air in the gas supply book section of thick bamboo can discharge, make and get into and can fill the air in two expansion seal rings, and then realize that expansion seal ring inflates the back and take place to expand, and laminating with outer sealing washer then can be inseparabler, thereby realize strengthening the seal.

Description

Pipeline connection structure of thermal power boiler

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a pipeline connection structure of a thermal power boiler.

Background

The thermal power boiler is a boiler used in a thermal power station, the boiler is energy conversion equipment, the energy input to the boiler is chemical energy and electric energy in fuel, and the boiler outputs steam, high temperature water or organic heat carrier with certain heat energy. When connecting small-size thermal power boiler pipeline, generally adopt the ring flange to assemble and connect, when connecting, traditional method generally adopts the assembly mode of bolt and nut, assembly efficiency is low when in actual use, and traditional equipment is connected, generally only through simple extrusion contact seal, when the inside gas of pipeline or liquid velocity of flow are accelerated, be in great pressure for a long time, traditional sealing member simple structure, generally simple sealing ring carries out contact seal, can appear the seepage phenomenon in the actual use in-process, therefore, the invention provides a thermal power boiler pipeline connection structure, in order to solve above-mentioned problem.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a thermal power boiler pipeline connecting structure, which solves the problems mentioned in the background art.

The thermal power boiler pipeline connecting structure comprises a connecting sleeve for connecting two pipeline bodies, wherein limiting wrapping rings are fixed at two ends of the connecting sleeve, expansion sealing rings are fixed on the inner walls of the two limiting wrapping rings, outer sealing rings matched with the expansion sealing rings are embedded and fixed on the surfaces of the two pipeline bodies, the expansion sealing rings are of hollow design, a magnetic powder layer is arranged on the inner walls of the expansion sealing rings, an iron powder layer matched with the magnetic powder layer is arranged on the surfaces of the outer sealing rings, an abutting air supply unit is arranged on the connecting sleeve, the abutting air supply unit is used for automatically controlling air to be filled into the two expansion sealing rings when the pipeline bodies are connected with the connecting sleeve, a locking sealing unit is further arranged between the connecting sleeve and the two pipeline bodies, and the locking sealing unit is used for rapidly connecting the pipeline bodies and the connecting sleeve and simultaneously forms primary sealing.

Preferably, the tight air supply unit of support is including rotating the kickboard of installing at the adapter sleeve inner wall, be fixed with the extension spring that resets between kickboard and the adapter sleeve, the inner wall of adapter sleeve is fixed with carries out spacing pin to the kickboard, run through on the adapter sleeve and be fixed with the air feed and roll over a section of thick bamboo, the inner wall slidable mounting of air feed roll over a section of thick bamboo has the plug that pushes away, one side of pushing away the plug is fixed with the connecting block, the connecting rod is installed in the surface rotation of connecting block, the connecting rod rotates with the kickboard to be connected, two run through between the spacing parcel circle and be fixed with the pipe, the both ends of pipe respectively with two inflation sealing washer periphery intercommunication, the one end intercommunication of air feed roll over a section of thick bamboo has the connecting pipe, connecting pipe tip and pipe surface intercommunication, one of them the inner wall of pipeline body is fixed with the drive push rod that uses with the kickboard cooperation.

Preferably, the locking sealing unit comprises folding rods fixed on the surfaces of two pipeline bodies, inserting rings matched with the folding rods are fixed on two sides of the surfaces of the connecting sleeve through supporting rods, supporting folded plates are fixed on the surfaces of the connecting sleeve, movable rods penetrate through the supporting folded plates, two locking triangular blocks are fixed on the bottom ends of the movable rods, annular locking grooves matched with the locking triangular blocks are formed in the surfaces of the folding rods, spring washers are fixed on the surfaces of the movable rods, locking springs are sleeved on the surfaces of the movable rods, first attaching sealing rings are fixed on the end portions of the pipeline bodies, and second attaching sealing rings matched with the first attaching sealing rings are fixed on the inner walls of the connecting sleeve.

Preferably, the side surface of the first laminating sealing ring is provided with a sealing convex ring, and the side surface of the second laminating sealing ring is provided with a sealing concave ring groove matched with the sealing convex ring.

Preferably, the sealing convex ring and the first fitting sealing ring are integrally formed, the cross section of the sealing convex ring is in a truncated cone shape, the sealing concave ring groove is a gradual change annular groove, and the size of the sealing concave ring groove close to the inside is smaller than that of the sealing concave ring groove close to the outside.

Preferably, the locking triangular block is a right triangle, and the outer side of the locking triangular block is designed as an inclined plane.

Preferably, the two partial openings of the pipeline bodies, which are close to each other, are smaller than the size of the pipeline bodies, so that the pipeline bodies are convenient to limit when being connected with the connecting sleeve.

Preferably, one end of the locking spring is fixed above the supporting folded plate, and the other end of the locking spring is fixed with the spring washer.

Advantageous effects

The invention provides a thermal power boiler pipeline connecting structure. Compared with the prior art, the method has the following beneficial effects:

This thermal power boiler pipeline connection structure, in the connection process, the drive push rod can be with the kickboard contact and extrusion kickboard in entering into the adapter sleeve along with the pipeline body, the kickboard is pressed and then takes place to rotate, and then promote the gas plug displacement, thereby make the air in the gas supply book section of thick bamboo can discharge, make and enter into and fill in two expansion seal rings, and then the inflation takes place after realizing that the expansion seal ring is inflated, laminate then can be inseparabler with outer sealing washer, thereby realize strengthening the seal, can play fine sealed effect, can avoid the seepage phenomenon to produce, and lock sealing unit's setting, be convenient for realize the quick equipment of pipeline body and dismantle, make pipeline body assembly efficiency higher, meanwhile can realize the preliminary sealing work of pipeline body and adapter sleeve, further strengthen the seal, through double seal's design, when one of them a set of seal structure breaks down, also do not influence its normal use.

Drawings

FIG. 1 is a split view of the overall structure of the present invention;

FIG. 2 is a schematic view of the outer structure of the connecting sleeve of the present invention;

FIG. 3 is a schematic view of the external structure of the pipe body according to the present invention;

FIG. 4 is a schematic view of the internal structure of the connecting sleeve of the present invention;

FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 4;

FIG. 6 is an enlarged view of a portion of the invention at B in FIG. 4;

FIG. 7 is a schematic view of a gas supply folding cylinder structure of the invention;

FIG. 8 is a schematic view showing a partial structure of a locking seal unit according to the present invention;

FIG. 9 is a schematic cross-sectional view of a first conformable seal ring of the present invention;

FIG. 10 is a schematic cross-sectional view of a second conformable seal ring of the present invention.

In the figure, the pipeline comprises a 1-pipeline body, a 2-connecting sleeve, a 3-limiting wrapping ring, a 4-expansion sealing ring, a 5-outer sealing ring, a 6-magnetic powder layer, a 7-iron powder layer, an 8-abutting air supply unit, an 81-floating plate, an 82-resetting tension spring, an 83-stop lever, an 84-air supply folding cylinder, an 85-pushing air plug, an 86-connecting block, an 87-connecting rod, an 88-conduit, an 89-connecting tube, an 810-driving push rod, a 9-locking sealing unit, a 91-folding rod, a 92-inserting ring, a 93-supporting folded plate, a 94-movable rod, a 95-locking triangular block, a 96-annular locking groove, a 97-spring washer, a 98-locking spring, a 99-first fitting sealing ring, a 910-second fitting sealing ring, a 911-sealing convex ring and a 912-sealing concave ring groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 10, the present invention provides the following technical solutions:

Example 1

The utility model provides a thermal power boiler pipeline connection structure, including the adapter sleeve 2 that is used for connecting two pipeline bodies 1, the partial opening that two pipeline bodies 1 are close to each other all is less than pipeline body 1 own size, and then conveniently when being connected with adapter sleeve 2, pipeline body 1 is spacing, the both ends of adapter sleeve 2 all are fixed with spacing parcel circle 3, the inner wall of two spacing parcel circles 3 all is fixed with expansion seal circle 4, the surface of two pipeline bodies 1 all inlays and is fixed with the outer sealing washer 5 that uses with expansion seal circle 4 cooperation, expansion seal circle 4 is hollow design, its inner wall is provided with magnetic powder layer 6, the surface of outer sealing washer 5 is provided with the iron powder layer 7 that uses with magnetic powder layer 6 cooperation, be provided with on the adapter sleeve 2 and support tight air feed unit 8, support tight air feed unit 8 and be used for when pipeline body 1 is connected with adapter sleeve 2, automatic control fills the air to inside two expansion seal circles 4.

In this embodiment, the expansion sealing ring 4 is the annular sealing ring of cavity design, can take place the inflation after inflating, can resume original shape after the gas discharge, and the cross-section of spacing parcel circle 3 is the L type, adopts the design of this shape, can avoid expansion sealing ring 4 to the horizontal direction inflation when taking place deformation, through spacing parcel circle 3 spacing for expansion sealing ring 4 can only realize the inflation in vertical direction, and then can realize closely laminating with outer sealing ring 5, thereby realize strengthening sealed effect, through the setting of magnetic powder layer 6 and iron powder layer 7, make expansion sealing ring 4 and outer sealing ring 5 be convenient for contact laminating when initial state.

The propping air supply unit 8 comprises a floating plate 81 rotatably arranged on the inner wall of a connecting sleeve 2, a reset tension spring 82 is fixed between the floating plate 81 and the connecting sleeve 2, a stop lever 83 for limiting the floating plate 81 is fixed on the inner wall of the connecting sleeve 2, an air supply folding cylinder 84 is fixedly penetrated on the connecting sleeve 2, an air pushing plug 85 is slidably arranged on the inner wall of the air supply folding cylinder 84, a connecting block 86 is fixedly arranged on one side of the air pushing plug 85, a connecting rod 87 is rotatably arranged on the surface of the connecting block 86, the connecting rod 87 is rotatably connected with the floating plate 81, a guide pipe 88 is fixedly penetrated between two limiting wrapping rings 3, two ends of the guide pipe 88 are respectively communicated with the peripheries of two expansion sealing rings 4, a connecting pipe 89 is communicated with one end of the air supply folding cylinder 84, the end of the connecting pipe 89 is communicated with the surface of the guide pipe 88, and a driving push rod 810 matched with the floating plate 81 is fixedly arranged on the inner wall of one pipe body 1.

In this embodiment, the driving push rod 810 contacts with the floating plate 81 and extrudes the floating plate 81 along with the entering of the pipe body 1 into the connecting sleeve 2, the floating plate 81 is pressed and then rotates, and then the pushing air plug 85 is pushed to displace, so that air in the air supply folding cylinder 84 can be discharged, air can be filled into the two expansion sealing rings 4, expansion occurs after the expansion sealing rings 4 are inflated, the bonding with the outer sealing ring 5 is tighter, and the sealing enhancing effect is achieved. The air plug 85 and the air supply folding cylinder 84 have good sealing performance, and the reset tension spring 82 can facilitate the reverse reset of the floating plate 81, and air exists in the air supply folding cylinder 84 and air exists in each pipeline. The whole tight air supply unit 8 of support sets up, effectively prevents outside air and moisture to get into in the adapter sleeve 2.

Example 2

The utility model provides a thermal power boiler pipeline connection structure, including the adapter sleeve 2 that is used for connecting two pipeline bodies 1, the partial opening that two pipeline bodies 1 are close to each other all is less than pipeline body 1 own size, and then conveniently when being connected with adapter sleeve 2, pipeline body 1 is spacing, the both ends of adapter sleeve 2 all are fixed with spacing parcel circle 3, the inner wall of two spacing parcel circles 3 all is fixed with expansion seal circle 4, the outer sealing washer 5 that is fixed with the cooperation of expansion seal circle 4 is used is all inlayed on the surface of two pipeline bodies 1, expansion seal circle 4 is hollow design, its inner wall is provided with magnetic powder layer 6, the surface of outer sealing washer 5 is provided with the iron powder layer 7 that cooperates with magnetic powder layer 6 and uses, be provided with on the adapter sleeve 2 and support tight air feed unit 8, support tight air feed unit 8 and be used for when pipeline body 1 is connected with adapter sleeve 2, automatic control fills the air to inside two expansion seal circle 4, still be provided with locking seal unit 9 between adapter sleeve 2 and the two pipeline bodies 1, locking seal unit 9 is used for quick connection pipeline body adapter sleeve 1 and 2, form preliminary seal simultaneously.

The locking sealing unit 9 comprises folding rods 91 fixed on the surfaces of two pipeline bodies 1, inserting rings 92 matched with the folding rods 91 are fixed on two sides of the surfaces of the connecting sleeve 2 through supporting rods, supporting folded plates 93 are fixed on the surfaces of the connecting sleeve 2, movable rods 94 penetrate through the supporting folded plates 93, locking triangular blocks 95 are fixed at the bottom ends of the two movable rods 94, annular locking grooves 96 matched with the locking triangular blocks 95 are formed in the surfaces of the folding rods 91, spring washers 97 are fixed on the surfaces of the movable rods 94, locking springs 98 are sleeved on the surfaces of the movable rods 94, one ends of the locking springs 98 are fixed above the supporting folded plates 93, the other ends of the locking springs are fixed with the spring washers 97, first attaching sealing rings 99 are fixed on the ends of the pipeline bodies 1, and second attaching sealing rings 910 matched with the first attaching sealing rings 99 are fixed on the inner walls of the connecting sleeve 2. The side of the first fitting sealing ring 99 is provided with a sealing convex ring 911, and the side of the second fitting sealing ring 910 is provided with a sealing concave ring groove 912 which is matched with the sealing convex ring 911 for use. The sealing convex ring 911 and the first fitting sealing ring 99 are integrally formed, the locking triangular block 95 is a right triangle, and the outer side of the locking triangular block is an inclined plane.

In this embodiment, the insert ring 92 is disposed, so that the folding rod 91 is inserted, the locking triangular block 95 is extruded until the annular locking groove 96 on the folding rod 91 moves below the locking triangular block 95, at this time, under the action of the elastic force of the locking spring 98, the locking triangular block 95 can be smoothly clamped into the annular locking groove 96, at this time, the pipe body 1 is blocked by the limiting wrapping ring 3 grids, locking of the whole pipe body 1 is achieved, meanwhile, the first attaching sealing ring 99 can be attached to the second attaching sealing ring 910, the sealing convex ring 911 can be embedded into the sealing concave ring groove 912, the cross section of the sealing convex ring 911 is in a truncated cone shape, the size of the sealing concave ring groove 912 close to the inside is smaller than the size of the outside, by adopting this design, on one hand, the contact area between the first attaching sealing ring 99 and the second attaching sealing ring 910 can be increased, the effect of sealing is achieved, and at the same time, the sealing convex ring 911 can be more smoothly inserted into the sealing concave ring groove 912

All sealing element structures in the invention have the characteristics of high temperature resistance and corrosion resistance.

And all that is not described in detail in this specification is well known to those skilled in the art.

During the use, aim at adapter sleeve 2 with pipeline body 1 tip, will roll over the pole 91 aim at the lock ring 92 and pass the lock ring 92 simultaneously, extrude locking triangular block 95 through roll over pole 9, make locking triangular block 95 shift up, until the annular locking groove 96 on roll over the pole 91 moves to locking triangular block 95 below, at this moment under the elasticity effect of locking spring 98, make locking triangular block 95 can smoothly block into annular locking groove 96, pipeline body 1 is blocked by spacing parcel circle 3 check at this moment, realize the locking to whole pipeline body 1, the mounting means of two pipeline bodies 1 is the same, in the locking process, first laminating sealing ring 99 can laminate with second laminating sealing ring 910 each other, seal bulge loop 911 can imbed in seal concave ring groove 912, when need dismantle pipeline body 1, only need pull movable rod 94 upward movement, make locking triangular block 95 break away from annular locking groove 96, alright take out pipeline body 1, in the course of drive push rod 810 can get into to the adapter sleeve 2 along with pipeline body 1, and then the expansion seal ring 81 is realized, and the expansion seal ring 81 is then can take place in the expansion seal ring 81, and the expansion seal ring is realized, and the expansion seal ring is then the expansion seal ring is realized, and the expansion seal ring is expanded and the expansion is more 4, and the expansion seal ring is realized, and the expansion seal ring is inflated and the expansion is realized, and the expansion seal ring is expanded and the expansion is realized, and the expansion is realized.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a thermal power boiler pipeline connection structure, includes adapter sleeve (2) that are used for connecting two pipeline bodies (1), its characterized in that adapter sleeve (2) both ends all are fixed with spacing parcel circle (3), two the inner wall of spacing parcel circle (3) all is fixed with expansion seal circle (4), two the surface of pipeline body (1) all inlays and establishes outer sealing washer (5) that are fixed with expansion seal circle (4) cooperation and use, expansion seal circle (4) are hollow design, and its inner wall is provided with magnetic powder layer (6), the surface of outer sealing washer (5) is provided with iron powder layer (7) that use with magnetic powder layer (6) cooperation, be provided with on adapter sleeve (2) and support tight air feed unit (8), support tight air feed unit (8) are used for when pipeline body (1) are connected with adapter sleeve (2), automatic control fills the air to two inside expansion seal circle (4), still be provided with locking sealing unit (9) between adapter sleeve (2) and two pipeline bodies (1), locking sealing unit (9) are used for forming preliminary sealing connection (1) and quick.

2. The thermal power boiler pipeline connection structure according to claim 1, wherein the abutting air supply unit (8) comprises a floating plate (81) rotatably mounted on the inner wall of the connecting sleeve (2), a reset tension spring (82) is fixedly arranged between the floating plate (81) and the connecting sleeve (2), a stop lever (83) for limiting the floating plate (81) is fixedly arranged on the inner wall of the connecting sleeve (2), an air supply folding cylinder (84) is fixedly arranged on the connecting sleeve (2) in a penetrating manner, an air pushing plug (85) is slidably mounted on the inner wall of the air supply folding cylinder (84), a connecting block (86) is fixedly arranged on one side of the air pushing plug (85), a connecting rod (87) is rotatably mounted on the surface of the connecting block (86), the connecting rod (87) is rotatably connected with the floating plate (81), a guide pipe (88) is fixedly arranged between the two limiting wrapping rings (3), two ends of the guide pipe (88) are respectively communicated with the peripheries of the two expansion sealing rings (4), one end of the air supply folding cylinder (84) is communicated with a connecting pipe (89), and the end portion (89) is fixedly communicated with the inner wall of one of the guide pipe body (81) by driving the guide pipe (81).

3. The thermal power boiler pipeline connection structure according to claim 1, wherein the locking sealing units (9) comprise folding rods (91) fixed on the surfaces of two pipeline bodies (1), inserting rings (92) matched with the folding rods (91) are fixed on two sides of the surfaces of the connecting sleeves (2) through supporting rods, supporting folded plates (93) are fixed on the surfaces of the connecting sleeves (2), movable rods (94) penetrate through the supporting folded plates (93), locking triangular blocks (95) are fixed at the bottom ends of the two movable rods (94), annular locking grooves (96) matched with the locking triangular blocks (95) are formed in the surfaces of the folding rods (91), spring washers (97) are fixed on the surfaces of the movable rods (94), locking springs (98) are sleeved on the surfaces of the movable rods (94), first fitting sealing rings (99) are fixed on the end portions of the pipeline bodies (1), and second fitting sealing rings (910) matched with the first fitting sealing rings (99) are fixed on the inner walls of the connecting sleeves (2).

4. The thermal power boiler pipeline connection structure according to claim 3, wherein a sealing convex ring (911) is arranged on the side face of the first fitting sealing ring (99), and a sealing concave ring groove (912) matched with the sealing convex ring (911) is arranged on the side face of the second fitting sealing ring (910).

5. The connecting structure of a thermal power boiler pipeline according to claim 4, wherein the sealing convex ring (911) and the first fitting sealing ring (99) are integrally formed, the cross section of the sealing convex ring (911) is in a truncated cone shape, and the sealing concave ring groove (912) is a gradual annular groove, and the size of the gradual annular groove near the inner part is smaller than the size of the gradual annular groove near the outer part.

6. A thermal power boiler pipeline connection structure according to claim 3, wherein said locking triangular blocks (95) are right-angled triangles, the outer sides of which are inclined planes.

7. The thermal power boiler pipe connecting structure according to claim 1, wherein openings of the two pipe bodies (1) close to each other are smaller than the size of the pipe bodies (1), and the pipe bodies (1) are convenient to limit when connected with the connecting sleeve (2).

8. A thermal power boiler pipeline connection structure according to claim 3, wherein one end of the locking spring (98) is fixed above the supporting folded plate (93), and the other end is fixed with the spring washer (97).