CN109751472B - High-temperature-resistant high-pressure-resistant flexible heat insulation structure and expansion joint - Google Patents
High-temperature-resistant high-pressure-resistant flexible heat insulation structure and expansion joint Download PDFInfo
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- CN109751472B CN109751472B CN201910080064.XA CN201910080064A CN109751472B CN 109751472 B CN109751472 B CN 109751472B CN 201910080064 A CN201910080064 A CN 201910080064A CN 109751472 B CN109751472 B CN 109751472B
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- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 15
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 13
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- 238000009826 distribution Methods 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
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- 239000012774 insulation material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 238000007670 refining Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a high-temperature and high-pressure resistant flexible heat insulation structure and an expansion joint, wherein the high-temperature and high-pressure resistant flexible heat insulation structure comprises: the heat insulation assembly I, the heat insulation assembly II and the heat insulation assembly III; the heat insulation assembly II comprises: the heat insulation pipe comprises a middle pipe I, a large annular plate I, an end connection pipe I, a balance corrugated pipe, an end connection pipe II, a large annular plate II, a middle pipe II, a heat insulation lining component I and a heat insulation filler I; two ends of the balance corrugated pipe are respectively connected with the terminating pipe I and the terminating pipe II; a thermal insulation liner assembly I is disposed below the termination tube I; the side face of the heat insulation assembly III, the middle pipe II, the large ring plate II, the end connection pipe II, the balance corrugated pipe, the end connection pipe I, the large ring plate I, the middle pipe I and the heat insulation lining assembly I form a cavity I; the cavity I is filled with a heat insulation filler I. The invention meets the use requirement of the expansion joint under the working condition of high temperature and high pressure.
Description
Technical Field
The invention belongs to the technical field of refining projects or other high-temperature working conditions, and particularly relates to a high-temperature-resistant high-pressure-resistant flexible heat insulation structure and an expansion joint.
Background
It is known that in catalytic refining projects or other high temperature conditions, the temperature of the medium flowing inside the expansion joint is up to 700 ℃ or more, and the temperature in some high temperature occasions is up to 1300 ℃, so that the expansion joint and materials cannot continuously work under such high temperature and high pressure conditions. And the expansion joint can all take place displacement change when the during operation, and traditional heat insulation structure also can move along with this when the expansion joint takes place displacement compensation, leads to the heat source to directly act on the expansion joint body, leads to local overheated and take place to become invalid. Because of the above-mentioned potential safety hazards, these use locations are extremely prone to cause serious safety accidents, and are not neglected, so that a safer heat insulation structure is required to be sought to avoid all losses caused by failure of the expansion joint due to high temperature.
Disclosure of Invention
The technical solution of the invention is as follows: overcomes the defects of the prior art, and provides a high-temperature-resistant high-pressure-resistant flexible heat insulation structure and an expansion joint so as to meet the use requirements of the expansion joint under the working conditions of high temperature and high pressure.
In order to solve the technical problems, the invention discloses a high-temperature-resistant high-pressure-resistant flexible heat insulation structure, which comprises: the heat insulation assembly I, the heat insulation assembly II and the heat insulation assembly III; the heat insulation assembly I and the heat insulation assembly III are symmetrical pieces and are symmetrically arranged on the left side and the right side of the heat insulation assembly II;
insulation assembly ii, comprising: the heat insulation pipe comprises a middle pipe I, a large annular plate I, an end connection pipe I, a balance corrugated pipe, an end connection pipe II, a large annular plate II, a middle pipe II, a heat insulation lining component I, a heat insulation filler I and a lining plate;
the large ring plate I is vertically welded on the middle pipe I, the large ring plate II is vertically welded on the middle pipe II, and the lining plate is arranged between the middle pipe I and the middle pipe II;
the end connection pipe I is vertically welded on the large annular plate I, and the end connection pipe II is vertically welded on the large annular plate II;
two ends of the balance corrugated pipe are respectively connected with the terminating pipe I and the terminating pipe II;
a thermal insulation liner assembly I is disposed below the termination tube I;
the side face of the heat insulation assembly III, the middle pipe II, the large ring plate II, the end connection pipe II, the balance corrugated pipe, the end connection pipe I, the large ring plate I, the middle pipe I and the heat insulation lining assembly I form a cavity I; wherein the cavity I is provided with an expansion joint I;
the cavity I is filled with a heat insulation filler I.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, cavity I includes: cavity region I, cavity region II, cavity region III and cavity region IV; insulation pack i comprising: an aluminum silicate cotton blanket and a heat insulation net wrapping cotton;
the cavity area I is a Yang Bo inner cavity of the balance corrugated pipe;
the cavity area II is positioned below the cavity area I;
the cavity area III is positioned below the cavity area II, and the plane where the middle pipe I is positioned is taken as a boundary line;
the cavity area IV is positioned in the cavity area III;
the cavity area I is filled with aluminum silicate cotton blanket, the cavity area II is filled with aluminum silicate cotton blanket and heat insulation net wrapping cotton layer by layer, and the cavity area III and the cavity area IV are filled with heat insulation net wrapping cotton.
In the high-temperature-resistant high-pressure-resistant flexible heat insulation structure, the cavity area IV is positioned at the upper right side of the cavity area III, and the cavity area IV meets the following conditions:
the heat insulation net bag cotton filled in the cavity area IV needs to completely cover the length of the middle pipe II and at least exceeds 100mm.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, thermal-insulated subassembly II still includes: a plurality of fixing nails I, a heat insulation guide tube I and a plurality of fixing nails II;
the fixing nails I are positioned in the cavity area III and are arranged at equal intervals and are vertically welded and fixed with the horizontal bottom plate of the heat insulation lining assembly I so as to fix the heat insulation net cotton filled in the cavity area III;
the heat insulation guide pipe I is horizontally arranged in the cavity area III and is vertically welded and fixed with the side surface of the heat insulation assembly III;
the fixing nails II are positioned in the cavity area IV and are arranged at equal intervals and are vertically welded and fixed with the heat insulation guide pipe I so as to fix the heat insulation net wrapping cotton filled in the cavity area IV.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, thermal-insulated subassembly II still includes: the device comprises a tortoise shell net I, a refractory casting material I, one or more end dustproof heat insulation check rings I and a fixing clamp I;
the tortoise shell net I is welded in the heat insulation lining component I, and a refractory casting material I is cast in a cavity between the tortoise shell net I and the heat insulation lining component I;
the fixing clamp I is arranged at the tail part of the heat insulation lining component I and at one side close to the expansion joint I, and one or more end part dustproof heat insulation check rings I are fixed through the fixing clamp I; wherein, fixation clamp I includes: a unidirectional fixing clip and a bidirectional fixing clip.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, heat-proof component I includes: the end connection pipe III, the working corrugated pipe, the end connection pipe IV, the heat insulation lining component II and the heat insulation filler II;
two ends of the working corrugated pipe are respectively connected with the terminating pipe III and the terminating pipe IV;
the side surface of the heat insulation assembly II, the terminating pipe IV, the working corrugated pipe, the terminating pipe III and the heat insulation lining assembly II form a cavity II; wherein, the cavity II is provided with an expansion joint II;
the cavity II is filled with a heat insulation filler II.
Above-mentioned high temperature resistant high pressure flexible thermal insulation structure, cavity II includes: a cavity region V, a cavity region VI and a cavity region VII;
the cavity area V is a Yang Bo inner cavity of the working corrugated pipe;
the cavity region VI is positioned below the cavity region V;
the cavity area VII is positioned in the cavity area VI;
the cavity area V is filled with aluminum silicate cotton blanket, and the cavity area VI and the cavity area VII are filled with heat insulation net cotton.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, heat-proof component I includes: the fixing nail III, the heat insulation guide tube II and the fixing nail IV;
the fixing nails III are positioned in the cavity area VI and are vertically welded and fixed with the horizontal bottom plate of the heat insulation lining component II so as to fix the heat insulation net cotton filled in the cavity area VI;
the heat insulation guide pipe II is positioned in the cavity area VI and is vertically welded and fixed with the side surface of the heat insulation assembly II;
the fixing nails IV are positioned in the cavity area VII and are vertically welded and fixed with the heat insulation guide pipes II so as to fix the heat insulation net cotton filled in the cavity area VII.
Above-mentioned high temperature resistant high pressure flexible heat insulation structure, heat-proof component I still includes: the device comprises a tortoise shell net II, a refractory casting material II, one or more end dustproof heat insulation check rings II and a fixing clamp II;
the tortoise shell net II is welded in the heat insulation lining component II, and the refractory casting material II is cast in a cavity between the tortoise shell net II and the heat insulation lining component II;
the fixing clamp II is arranged at the tail part of the heat insulation lining component II and at one side close to the expansion joint II, and one or more end part dustproof heat insulation check rings II are fixed through the fixing clamp II; wherein, fixation clamp II includes: a unidirectional fixing clip and a bidirectional fixing clip.
The invention also discloses an expansion joint based on the high-temperature and high-pressure resistant flexible heat insulation structure, which comprises the following components: the elastic high-temperature-resistant heat insulation structure comprises an elastic high-temperature-resistant heat insulation structure, an end plate I, a vertical plate I, a hinge plate II, a square universal ring I, a pin shaft I, an end plate II, a vertical plate II, a hinge plate III, a hinge plate IV, a square universal ring II and a pin shaft II;
an elastic high temperature resistant insulation structure comprising: a heat insulation assembly I, a heat insulation assembly II and a heat insulation assembly III; the heat insulation assembly I and the heat insulation assembly III are symmetrical pieces and are symmetrically arranged on the left side and the right side of the heat insulation assembly II; insulation assembly ii, comprising: the heat insulation pipe comprises a middle pipe I, a large annular plate I, an end connection pipe I, a balance corrugated pipe, an end connection pipe II, a large annular plate II, a middle pipe II, a heat insulation lining component I, a heat insulation filler I and a lining plate; the large ring plate I is vertically welded on the middle pipe I, the large ring plate II is vertically welded on the middle pipe II, and the lining plate is arranged between the middle pipe I and the middle pipe II; the end connection pipe I is vertically welded on the large annular plate I, and the end connection pipe II is vertically welded on the large annular plate II; two ends of the balance corrugated pipe are respectively connected with the terminating pipe I and the terminating pipe II; a thermal insulation liner assembly I is disposed below the termination tube I; the side face of the heat insulation assembly III, the middle pipe II, the large ring plate II, the end connection pipe II, the balance corrugated pipe, the end connection pipe I, the large ring plate I, the middle pipe I and the heat insulation lining assembly I form a cavity I; wherein the cavity I is provided with an expansion joint I; the cavity I is filled with a heat insulation filler I;
the end plate I and the vertical plate I are welded and fixed on the heat insulation assembly II; the hinge plate I and the hinge plate II are arranged in parallel, and one end of the hinge plate I and one end of the hinge plate II are respectively welded with the end plate I; the other end of the hinge plate I, the other end of the hinge plate II and the square universal ring I are connected through a pin shaft I;
the end plate II and the vertical plate II are welded and fixed on the heat insulation assembly III; the hinge plate III and the hinge plate IV are arranged in parallel, and one end of the hinge plate III and one end of the hinge plate IV are respectively welded with the end plate II; the other end of the hinge plate III, the other end of the hinge plate IV and the square universal ring II are connected through a pin shaft II.
The invention has the following advantages:
(1) The invention discloses a high-temperature-resistant high-pressure-resistant flexible heat insulation structure which can effectively insulate a heat source, reduce energy loss and avoid failure caused by local overheating of a corrugated pipe or other structural parts.
(2) The invention discloses a high-temperature-resistant high-pressure-resistant flexible heat insulation structure which can be suitable for various metal expansion joint products, effectively inhibits high-temperature heat radiation, prevents pressure-bearing materials of an expansion joint main body from exceeding the standard, reddening or failing to damage due to heat source media of pipelines, greatly prolongs the service life and stability of the metal expansion joint products, reduces heat loss of the pipelines, and plays a role in saving energy.
(3) The invention adds the fixing nails and the heat insulation guide pipes, can effectively control the production and assembly process of the expansion joint and the movement of the heat insulation material of the expansion joint in the running process of a pipe system, reduces the assembly difficulty of the expansion joint, particularly the assembly difficulty of a small-diameter product, and ensures the effective heat insulation of the heat insulation material of the expansion joint to each part in the running process.
Drawings
FIG. 1 is a schematic structural view of a high temperature and high pressure resistant flexible heat insulation structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a heat insulation assembly II according to an embodiment of the present invention;
FIG. 3 is a schematic view of a heat insulation assembly I according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an expansion joint based on a high-temperature and high-pressure resistant flexible heat insulation structure in an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention disclosed herein will be described in further detail with reference to the accompanying drawings.
The invention discloses a high-temperature-resistant high-pressure-resistant flexible heat insulation structure and an expansion joint based on the high-temperature-resistant high-pressure-resistant flexible heat insulation structure, which mainly comprise components such as a middle pipe, a terminating pipe, a heat insulation filler, a balance corrugated pipe, a working corrugated pipe, a heat insulation lining component and the like. The heat insulation lining component plays a very important role not only in protecting the corrugated pipe, but also in protecting the rooting component of the tortoise shell net and the refractory casting material, and also in protecting the rooting component of the internal heat insulation filler (aluminum silicate cotton blanket and heat insulation net cotton covered). The heat-insulating guide tube has the functions of guiding the heat source entering the heat-insulating structure, changing the direction of the heat source, prolonging the circulation stroke of the heat source, dispersing the heat source distribution, increasing the heat source resistance and gradually weakening the heat source temperature. The position of the heat insulation cotton can be effectively fixed by the fixing nails at the sensitive parts which are easy to be heated and the parts which are easy to move after the expansion joint moves, so that effective heat insulation is ensured, and meanwhile, the difficulty in assembly is reduced by the fixing nails. The end heat insulation check ring and the unidirectional or bidirectional fixing clamp play roles of blocking hot air, reducing the flow rate of the hot air and preventing dust and other solid substances from entering the inside of the heat insulation structure. The heat-insulating annular plate, the heat-insulating guide pipe and the heat-insulating net cotton are used together to change the direction of the heat source, increase the flow resistance of the heat source and prevent the heat source from directly acting on the pressure-bearing structural member.
Therefore, the heat insulation structure is reasonably designed, and no matter whether the expansion joint is displaced or not, the heat source can not directly act on the corrugated pipe, the cylinder body or other stressed components of the expansion joint, so that the effect of reducing the surface temperature of the expansion joint is achieved, and the use requirements of the expansion joint under the working conditions of high temperature and high pressure are met. In addition, in the structural design, the convenience and operability of the construction of the heat insulation structural member on various products are fully and previously considered. The high-temperature expansion joint using the heat insulation structure not only avoids failure at high temperature and high pressure and improves safety, but also is very convenient to assemble, weld and fill in the construction process, and has very high construction operability.
As shown in fig. 1 to 4, in an embodiment of the present invention, the high temperature and high pressure resistant flexible heat insulation structure includes: insulation assembly I100, insulation assembly II 200, insulation assembly III 300; wherein, the heat insulation component I100 and the heat insulation component III 300 are symmetrical pieces, and are symmetrically arranged at the left side and the right side of the heat insulation component II 200.
As shown in fig. 2, the heat insulation assembly ii 200 may specifically include: intermediate pipe I1, large annular plate I2, end connection pipe I3, balance corrugated pipe 4, end connection pipe II 5, large annular plate II 6, intermediate pipe II7, heat insulation lining component I8, heat insulation filler I9 and lining board 45. Wherein: the large ring plate I2 is vertically welded on the middle pipe I1, the large ring plate II 6 is vertically welded on the middle pipe II7, and the lining plate 45 is arranged between the middle pipe I and the middle pipe II; the end connecting pipe I3 is vertically welded on the large ring plate I2, and the end connecting pipe II 5 is vertically welded on the large ring plate II 6; two ends of the balance corrugated pipe 4 are respectively connected with the end connecting pipe I3 and the end connecting pipe II 5; a thermal liner assembly I8 is disposed below the termination tube I3; the side surface of the heat insulation assembly III 300, the middle pipe II7, the large annular plate II 6, the end connection pipe II 5, the balance corrugated pipe 4, the end connection pipe I3, the large annular plate I2, the middle pipe I1 and the heat insulation lining assembly I8 form a cavity I10; wherein the cavity I10 is provided with an expansion joint I11; the cavity I10 is filled with a heat insulation filler I9.
In a preferred embodiment of the invention, the cavity i 10 comprises: cavity region i 1001, cavity region ii 1002, cavity region iii 1003, and cavity region iv 1004; insulation pack i 9 comprising: an aluminum silicate cotton blanket and a heat insulation net are wrapped with cotton. Wherein: cavity region i 1001 is the Yang Bo lumen of balance bellows 4; cavity region ii 1002 is located below cavity region i 1001; cavity region iii 1003 is located below cavity region ii 1002, with the plane of intermediate tube i1 and liner 45 being the dividing line; cavity region iv 1004 is located within cavity region iii 1003; aluminum silicate cotton blankets are filled in the cavity area I1001, aluminum silicate cotton blankets and heat insulation mesh wrapping cotton are filled in the cavity area II 1002 layer by layer, and heat insulation mesh wrapping cotton is filled in the cavity area III 1003 and the cavity area IV 1004.
In a preferred embodiment of the invention, the cavity region iv 1004 is located at the upper right of the cavity region iii 1003, and the cavity region iv 1004 satisfies the following condition: the insulation gauze packing filled in the cavity area IV 1004 needs to completely cover the length of the intermediate pipe II7 and at least exceeds 100mm.
In a preferred embodiment of the present invention, the insulation assembly II 200 further comprises: a plurality of fixing nails I12, a heat insulation guide pipe I13 and a plurality of fixing nails II14. Wherein: the fixing nails I12 are positioned in the cavity area III 1003, are arranged at equal intervals, and are vertically welded and fixed with the horizontal bottom plate of the heat insulation lining component I8 so as to fix the heat insulation net cotton filled in the cavity area III 1003; the heat insulation guide pipe I13 is horizontally arranged in the cavity area III 1003 and is vertically welded and fixed with the side surface of the heat insulation assembly III 300; the fixing nails II14 are positioned in the cavity area IV 1004 at equal intervals and are vertically welded and fixed with the heat insulation guide pipe I13 so as to fix the heat insulation net cotton filled in the cavity area IV 1004.
In a preferred embodiment of the present invention, the insulation assembly II 200 further comprises: the device comprises a tortoise shell net I15, refractory casting materials I16, one or more end dustproof heat insulation check rings I17 and a fixing clamp I18. Wherein: the tortoise shell net I15 is welded inside the heat insulation lining component I8, and a refractory casting material I16 is cast in a cavity between the tortoise shell net I15 and the heat insulation lining component I8; the fixing clamp I18 is arranged at one side of the tail part of the thermal insulation lining component I8, which is close to the expansion joint I11, and one or more end part dustproof thermal insulation check rings I17 are fixed through the fixing clamp I18. Wherein, fixation clamp I18 may include: the unidirectional fixing clamp and the bidirectional fixing clamp can be selected according to the movement direction and the condition of the expansion joint.
In a preferred embodiment of the present invention, as shown in FIG. 3, an insulation assembly I100 comprises: an end fitting III 19, a working bellows 20, an end fitting IV 21, a thermal insulation liner assembly II 22, and a thermal insulation filler II 25. Wherein: two ends of the working corrugated pipe 20 are respectively connected with an end connecting pipe III 19 and an end connecting pipe IV 21; the side of the insulation assembly II 200, the termination tube IV 21, the working bellows 20, the termination tube III 19 and the insulation lining assembly II 22 form a cavity II 23; wherein, the cavity II 23 is provided with an expansion joint II 24; the cavity II 23 is filled with a heat insulation filler II 25.
In a preferred embodiment of the invention, the cavity ii 23 comprises: cavity region v 2301, cavity region vi 2302 and cavity region vii 2303. Wherein: cavity region v 2301 is the Yang Bo lumen of working bellows 20; cavity region vi 2302 is located below cavity region v 2301; cavity region vii 2303 is located within cavity region vi 2302; an aluminum silicate cotton blanket is filled in the cavity area V2301, and heat insulation mesh cotton bags are filled in the cavity area VI 2302 and the cavity area VII 2303.
In a preferred embodiment of the present invention, the insulation assembly I100 comprises: staple III 26, insulated guide tube II 27 and staple IV 28. Wherein: the fixing nail III 26 is positioned in the cavity area VI 2302 and is vertically welded and fixed with the horizontal bottom plate of the heat insulation lining component II 22 so as to fix the heat insulation net cotton filled in the cavity area VI 2302; the heat insulation guide pipe II 27 is positioned in the cavity area VI 2302 and is vertically welded and fixed with the side surface of the heat insulation assembly II 200; the fixing nails IV 28 are positioned in the cavity area VII 2303 and are welded and fixed with the heat insulation guide pipes II 27 vertically so as to fix the heat insulation net cotton filled in the cavity area VII 2303.
In a preferred embodiment of the present invention, the insulation assembly I100 further comprises: the fireproof insulation cement sheath comprises a tortoise shell net II 29, a fireproof casting material II 30, one or more end dustproof insulation check rings II 31 and a fixing clamp II 32. Wherein: the tortoise shell net II 29 is welded inside the heat insulation lining component II 22, and a refractory casting material II 30 is cast in a cavity between the tortoise shell net II 29 and the heat insulation lining component II 22; the fixing clamp II 32 is arranged at one side of the tail part of the thermal insulation lining component II 22, which is close to the expansion joint II 24, and one or more end part dustproof thermal insulation check rings II 31 are fixed through the fixing clamp II 32. Wherein, fixation clamp II 32 can include: the unidirectional fixing clamp and the bidirectional fixing clamp can be selected according to the movement direction and the condition of the expansion joint.
In this description, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, so that identical and similar parts between the embodiments are all enough to be referred to each other.
The foregoing is merely illustrative of the best embodiments of the present invention, and the present invention is not limited thereto, but any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be construed as falling within the scope of the present invention.
What is not described in detail in the present specification belongs to the known technology of those skilled in the art.
Claims (7)
1. A high temperature and high pressure resistant flexible insulation structure, comprising: a heat insulation assembly I (100), a heat insulation assembly II (200) and a heat insulation assembly III (300); the heat insulation assembly I (100) and the heat insulation assembly III (300) are symmetrical pieces, and are symmetrically arranged on the left side and the right side of the heat insulation assembly II (200);
insulation assembly ii (200), comprising: the heat insulation pipe comprises a middle pipe I (1), a large ring plate I (2), a terminating pipe I (3), a balance corrugated pipe (4), a terminating pipe II (5), a large ring plate II (6), a middle pipe II (7), a heat insulation lining component I (8), a heat insulation filler I (9), a plurality of fixing nails I (12), a heat insulation guide pipe I (13), a plurality of fixing nails II (14), a tortoise shell net I (15), a refractory pouring material I (16), one or more end dustproof heat insulation check rings I (17), a fixing clamp I (18) and a lining plate (45); the large ring plate I (2) is vertically welded on the middle pipe I (1), the large ring plate II (6) is vertically welded on the middle pipe II (7), and the lining plate (45) is arranged between the middle pipe I (1) and the middle pipe II (7); the end connecting pipe I (3) is vertically welded on the large annular plate I (2), and the end connecting pipe II (5) is vertically welded on the large annular plate II (6); two ends of the balance corrugated pipe (4) are respectively connected with the terminating pipe I (3) and the terminating pipe II (5); the heat insulation lining component I (8) is arranged below the end connection pipe I (3); the side face of the heat insulation assembly III (300), the middle pipe II (7), the large ring plate II (6), the end connection pipe II (5), the balance corrugated pipe (4), the end connection pipe I (3), the large ring plate I (2), the middle pipe I (1) and the heat insulation lining assembly I (8) form a cavity I (10); an expansion joint I (11) is arranged on the cavity I (10); the cavity I (10) is filled with a heat insulation filler I (9);
cavity i (10), comprising: cavity region i (1001), cavity region ii (1002), cavity region iii (1003), and cavity region iv (1004); insulation filler i (9), comprising: an aluminum silicate cotton blanket and a heat insulation net wrapping cotton; wherein, the cavity area I (1001) is the Yang Bo inner cavity of the balance corrugated pipe (4); cavity region ii (1002) is located below cavity region i (1001); the cavity area III (1003) is positioned below the cavity area II (1002) and takes the plane of the middle pipe I (1) as a dividing line; cavity region iv (1004) is located within cavity region iii (1003); aluminum silicate cotton blankets are filled in the cavity area I (1001), aluminum silicate cotton blankets and heat insulation net wrapping cotton are filled in the cavity area II (1002) layer by layer, and heat insulation net wrapping cotton is filled in the cavity area III (1003) and the cavity area IV (1004); the cavity area IV (1004) is positioned at the upper right part of the cavity area III (1003), and the cavity area IV (1004) meets the following conditions: the heat insulation net bag cotton filled in the cavity area IV (1004) needs to completely cover the length of the middle pipe II (7) and at least exceeds 100mm;
the fixing nails I (12) are positioned in the cavity area III (1003) at equal intervals and are vertically welded and fixed with the horizontal bottom plate of the heat insulation lining component I (8) so as to fix the heat insulation net cotton filled in the cavity area III (1003); the heat insulation guide pipe I (13) is horizontally arranged in the cavity area III (1003) and is vertically welded and fixed with the side surface of the heat insulation assembly III (300); the fixing nails II (14) are positioned in the cavity area IV (1004) at equal intervals and are vertically welded and fixed with the heat insulation guide pipe I (13) so as to fix heat insulation net wrapping cotton filled in the cavity area IV (1004);
the tortoise shell net I (15) is welded inside the heat insulation lining component I (8), and a refractory casting material I (16) is cast in a cavity between the tortoise shell net I (15) and the heat insulation lining component I (8); the fixing clamp I (18) is arranged at one side, close to the expansion joint I (11), of the tail part of the thermal insulation lining component I (8), and one or more end dustproof thermal insulation check rings I (17) are fixed through the fixing clamp I (18);
a heat insulation lining component for protecting the corrugated pipe, a rooting component used as a tortoise shell net and refractory casting material, and a rooting component used as an internal heat insulation filler;
the heat insulation guide tube is used for guiding the heat source entering the heat insulation structure, changing the direction of the heat source, prolonging the circulation stroke of the heat source, dispersing the heat source distribution, increasing the heat source resistance and gradually weakening the heat source temperature;
the fixing nails are used for fixing the positions of the heat insulation cotton, so that the assembly difficulty is reduced;
the heat insulation annular plate, the heat insulation guide pipe and the heat insulation net cotton play a role in changing the direction of a heat source, so that the flow resistance of the heat source is increased, and the heat source is prevented from directly acting on the pressure-bearing structural member.
2. The high temperature and high pressure resistant flexible insulation structure according to claim 1, characterized in that the fixing clip i (18) comprises: a unidirectional fixing clip and a bidirectional fixing clip.
3. The high temperature and high pressure resistant flexible insulation structure according to claim 1, wherein the insulation assembly i (100) comprises: an end connection pipe III (19), a working corrugated pipe (20), an end connection pipe IV (21), a heat insulation lining component II (22) and a heat insulation filling II (25);
two ends of the working corrugated pipe (20) are respectively connected with a terminating pipe III (19) and a terminating pipe IV (21);
the side surface of the heat insulation assembly II (200), the terminating pipe IV (21), the working corrugated pipe (20), the terminating pipe III (19) and the heat insulation lining assembly II (22) form a cavity II (23); wherein the cavity II (23) is provided with an expansion joint II (24);
the cavity II (23) is filled with a heat insulation filler II (25).
4. A flexible heat-insulating structure resistant to high temperatures and high pressures according to claim 3, characterized in that the cavity ii (23) comprises: cavity region v (2301), cavity region vi (2302) and cavity region vii (2303);
the cavity area V (2301) is the Yang Bo inner cavity of the working bellows (20);
the cavity region vi (2302) is located below the cavity region v (2301);
cavity region vii (2303) is located within cavity region vi (2302);
aluminum silicate cotton blankets are filled in the cavity area V (2301), and heat insulation mesh cotton bags are filled in the cavity area VI (2302) and the cavity area VII (2303).
5. A high temperature and pressure resistant flexible insulation structure according to claim 3, characterized in that the insulation assembly i (100) comprises: a fixing nail III (26), a heat insulation guide tube II (27) and a fixing nail IV (28);
the fixing nails III (26) are positioned in the cavity area VI (2302) and are vertically welded and fixed with the horizontal bottom plate of the heat insulation lining component II (22) so as to fix the heat insulation net cotton filled in the cavity area VI (2302);
the heat insulation guide pipe II (27) is positioned in the cavity area VI (2302) and is vertically welded and fixed with the side surface of the heat insulation assembly II (200);
the fixing nails IV (28) are positioned in the cavity area VII (2303) and are vertically welded and fixed with the heat insulation guide pipe II (27) so as to fix the heat insulation net wrapping cotton filled in the cavity area VII (2303).
6. A high temperature and pressure resistant flexible insulation structure according to claim 3, wherein the insulation assembly i (100) further comprises: the device comprises a tortoise shell net II (29), a refractory casting material II (30), one or more end dustproof heat insulation check rings II (31) and a fixing clamp II (32);
the tortoise shell net II (29) is welded inside the heat insulation lining component II (22), and the refractory casting material II (30) is cast in a cavity between the tortoise shell net II (29) and the heat insulation lining component II (22);
the fixing clamp II (32) is arranged at one side, close to the expansion joint II (24), of the tail part of the thermal insulation lining component II (22), and one or more end part dustproof thermal insulation check rings II (31) are fixed through the fixing clamp II (32); wherein, fixation clamp II (32) includes: a unidirectional fixing clip and a bidirectional fixing clip.
7. An expansion joint based on the high temperature and high pressure resistant flexible heat insulation structure according to claim 1, comprising: the high-temperature-resistant high-pressure-resistant flexible heat insulation structure comprises an end plate I (33), a vertical plate I (34), a hinge plate I (35), a hinge plate II (36), a square universal ring I (37), a pin shaft I (38), an end plate II (39), a vertical plate II (40), a hinge plate III (41), a hinge plate IV (42), a square universal ring II (43) and a pin shaft II (44);
a high temperature and high pressure resistant flexible insulation structure comprising: a heat insulation assembly I (100), a heat insulation assembly II (200) and a heat insulation assembly III (300); the heat insulation assembly I (100) and the heat insulation assembly III (300) are symmetrical pieces, and are symmetrically arranged on the left side and the right side of the heat insulation assembly II (200); insulation assembly ii (200), comprising: the heat insulation corrugated pipe comprises a middle pipe I (1), a large ring plate I (2), a terminating pipe I (3), a balance corrugated pipe (4), a terminating pipe II (5), a large ring plate II (6), a middle pipe II (7), a heat insulation lining component I (8), a heat insulation filler I (9) and a lining board (45); the large ring plate I (2) is vertically welded on the middle pipe I (1), the large ring plate II (6) is vertically welded on the middle pipe II (7), and the lining plate (45) is arranged between the middle pipe I (1) and the middle pipe II (7); the end connecting pipe I (3) is vertically welded on the large annular plate I (2), and the end connecting pipe II (5) is vertically welded on the large annular plate II (6); two ends of the balance corrugated pipe (4) are respectively connected with the terminating pipe I (3) and the terminating pipe II (5); the heat insulation lining component I (8) is arranged below the end connection pipe I (3); the side face of the heat insulation assembly III (300), the middle pipe II (7), the large ring plate II (6), the end connection pipe II (5), the balance corrugated pipe (4), the end connection pipe I (3), the large ring plate I (2), the middle pipe I (1) and the heat insulation lining assembly I (8) form a cavity I (10); wherein the cavity I (10) is provided with an expansion joint I (11); the cavity I (10) is filled with a heat insulation filler I (9);
the end plate I (33) and the vertical plate I (34) are welded and fixed on the heat insulation assembly II (200); the hinge plate I (35) and the hinge plate II (36) are arranged in parallel, and one end of the hinge plate I (35) and one end of the hinge plate II (36) are respectively welded with the end plate I (33); the other end of the hinge plate I (35), the other end of the hinge plate II (36) and the square universal ring I (37) are connected through a pin shaft I (38);
the end plate II (39) and the vertical plate II (40) are welded and fixed on the heat insulation assembly III (300); the hinge plate III (41) and the hinge plate IV (42) are arranged in parallel, and one end of the hinge plate III (41) and one end of the hinge plate IV (42) are respectively welded with the end plate II (39); the other end of the hinge plate III (41), the other end of the hinge plate IV (42) and the square universal ring II (43) are connected through a pin roll II (44).
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| CN201910080064.XA CN109751472B (en) | 2019-01-28 | 2019-01-28 | High-temperature-resistant high-pressure-resistant flexible heat insulation structure and expansion joint |
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| CN109751472B true CN109751472B (en) | 2024-03-15 |
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