阅读说明：本技术 一种综合管廊燃气管道固定装置及方法 (Comprehensive pipe gallery gas pipeline fixing device and method ) 是由 张雷 赵青松 魏江华 郝蕴华 朱倩 徐明星 于 2021-08-04 设计创作，主要内容包括：本发明涉及一种综合管廊燃气管道固定装置及方法,装置包括间隔设置的固定支座,固定支座包括固定在管廊地板上的固定安装板和抱紧燃气管道的第一抱箍,第一抱箍的底部通过第一支撑件与固定安装板固定连接,燃气管道在相邻固定支座的中间位置设有几字型的补偿机构,补偿机构与相邻的固定支座之间设有导向支座,导向支座包括固定在管廊地板上的导向安装板和抱紧燃气管道的第二抱箍,导向安装板上设有与燃气管道方向一致的导向槽,第二抱箍的底部设有倒T字型的第二支撑件,第二支撑件的底部卡装在导向槽中,其具有结构简单、成本低廉、适应性强、固定可靠、安全性高的优点；方法具有工艺简单、标准化程度高、工作效率高的优点。(The invention relates to a fixing device and a method for a gas pipeline of a comprehensive pipe gallery, wherein the fixing device comprises fixing supports arranged at intervals, each fixing support comprises a fixing mounting plate fixed on a pipe gallery floor and a first hoop for tightly holding the gas pipeline, the bottom of the first hoop is fixedly connected with the fixing mounting plate through a first supporting piece, the gas pipeline is provided with a compensation mechanism in a shape like a Chinese character 'ji' at the middle position of the adjacent fixing support, a guide support is arranged between the compensation mechanism and the adjacent fixing support, each guide support comprises a guide mounting plate fixed on the pipe gallery floor and a second hoop for tightly holding the gas pipeline, a guide groove in the same direction as the gas pipeline is arranged on the guide mounting plate, a second supporting piece in a shape like a Chinese character 'ji' is arranged at the bottom of the second hoop, and the bottom of the second supporting piece is clamped in the guide groove The safety is high; the method has the advantages of simple process, high standardization degree and high working efficiency.)

1. A utility tunnel gas pipeline fixing device is characterized by comprising fixing supports (2) arranged at intervals along the length direction of a gas pipeline (1), wherein each fixing support (2) comprises a fixing mounting plate (21) fixed on a pipe gallery floor (3) and a first hoop (22) tightly holding the gas pipeline (1), the bottom of the first hoop (22) is fixedly connected with the fixing mounting plate (21) through a first supporting piece (23), the gas pipeline (1) is provided with a compensation mechanism (11) in a shape like a Chinese character 'ji' at the middle position of the adjacent fixing support (2), a guide support (4) is arranged between the compensation mechanism (11) and the adjacent fixing support (2), the guide support (4) comprises a guide mounting plate (41) fixed on the pipe gallery floor (3) and a second hoop (42) tightly holding the gas pipeline (1), a guide groove (411) in the same direction as the gas pipeline (1) is arranged on the guide mounting plate (41), the bottom of the second hoop (42) is provided with a second support piece (43) in an inverted T shape, and the bottom of the second support piece (43) is clamped in the guide groove (411).

2. The utility model discloses a utility tunnel gas pipeline fixing device of claim 1, characterized in that, still include high spacing support (5) that set up with compensation mechanism (11) correspondence, high spacing support (5) are including fixing high spacing mounting panel (51) on piping lane floor (3), are fixed with two high stands (52) on high spacing mounting panel (51), are equipped with interval distribution's first connecting rod (53) between two high stands (52), and the top of compensation mechanism (11) is in the position between first connecting rod (53) upside and two high stands (52) of high spacing support (5).

3. A utility tunnel gas pipeline fixing device according to claim 2, characterized in that, the both sides of high limit support (5) are equipped with low limit support (6) respectively, low limit support (6) are including fixing low limit mounting panel (61) on piping lane floor (3), are fixed with two low stands (62) on low limit mounting panel (61), are equipped with second connecting rod (63) between two low stands (62), and gas pipeline (1) is in the position between second connecting rod (63) upside and two low stands (62) of low limit support (6).

4. The utility tunnel gas pipeline fixing device according to claim 3, wherein the first hoop (22) comprises a first arc-shaped bracket (221) and a first pressing plate (222), two ends of the first bracket (221) and the first pressing plate (222) are fixedly connected through bolts respectively, the gas pipeline (1) is clamped between the first bracket (221) and the first pressing plate (222), and two sides of the first pressing plate (222) are welded with the gas pipeline (1) respectively.

5. The utility tunnel gas pipeline fixing device of claim 4, characterized in that, the second staple bolt (42) includes curved second bracket (421) and second clamp plate (422), and the both ends of second bracket (421) and second clamp plate (422) are respectively through bolt fixed connection, and gas pipeline (1) card is between second bracket (421) and second clamp plate (422), and the both sides of second clamp plate (422) are respectively with gas pipeline (1) welding.

6. The utility tunnel gas pipeline fixing device according to claim 5, wherein the first pressing plate (222) is provided with first wing plates (223) on two sides respectively, and the first wing plates (223) are welded to the gas pipeline (1) on two sides respectively; and two sides of the second pressing plate (422) are respectively provided with a second wing plate (423), and two sides of the second wing plate (423) are respectively welded with the gas pipeline (1).

7. The utility tunnel gas pipeline fixing device according to claim 6, wherein the first supporting member (23) is in an inverted T shape, the first supporting member (23) is integrally formed with the first bracket (221), the first supporting member (23) is welded to the fixed mounting plate (21), and the second supporting member (43) is integrally formed with the second bracket (421); and spaces are reserved between the high upright post (52), the first connecting rod (53), the low upright post (62), the second connecting rod (63) and the gas pipeline (1).

8. The utility tunnel gas pipeline fixing device according to claim 6, characterized in that the positions of the pipe gallery floor (3) corresponding to the fixing mounting plate (21), the guide mounting plate (41), the high limit mounting plate (51) and the low limit mounting plate (61) are respectively provided with mounting platforms (31) prefabricated by reinforced concrete, and the fixing mounting plate (21), the guide mounting plate (41), the high limit mounting plate (51) and the low limit mounting plate (61) are respectively fixed on the corresponding mounting platforms (31).

9. A method of securing a gas pipeline using the device of claim 6, comprising the steps of:

s1, prefabricating an installation platform (31) integrated with the fixed support (2), the guide support (4), the high limit support (5) and the low limit support (6) on the pipe gallery floor (3) by adopting reinforced concrete according to the distance and the installation position of the fixed support (2), the guide support (4), the high limit support (5) and the low limit support (6);

s2, conveying the straight pipe section of the gas pipeline (1) with the anticorrosive coating and the compensating mechanism (11) into the comprehensive pipe gallery, and breaking the anticorrosive coatings on the straight pipe section of the gas pipeline (1) at positions corresponding to the two sides of the first pressing plate (222) and the second pressing plate (422) according to the installation positions of the fixed support (2) and the guide support (4);

s3, welding and fixing a first pressure plate (222) and a second pressure plate (422) on a straight pipe section of a gas pipeline (1), fixing the first pressure plate (222) and the second pressure plate (422) with a first bracket (221) and a second bracket (421) correspondingly through bolts, and fixing a fixed mounting plate (21) and a guide mounting plate (41) on a corresponding mounting table (31);

s4, fixing the high-limit support (5) on the corresponding mounting table (31) through the high-limit mounting plate (51), fixing the low-limit support (6) on the corresponding mounting table (31) through the low-limit mounting plate (61), and welding the compensation mechanism (11) between the adjacent straight pipe sections of the gas pipeline (1).

10. The method for fixing a gas pipe according to claim 9, further comprising a step of performing corrosion prevention treatment on the welded joint in steps S3 and S4; in step S4, a space is left between the high upright (52) and the first connecting rod (53) of the high limit support (5) and between the low upright (62) and the second connecting rod (63) of the low limit support (6) and the gas pipeline (1).

Technical Field

The invention relates to a pipeline fixing device, in particular to a fixing device and a fixing method for a gas pipeline in a comprehensive pipe gallery.

Background

The utility tunnel is a city underground pipeline utility tunnel, namely, a tunnel space is built underground, and engineering pipelines such as electric power, communication, gas, heat supply, water supply, drainage and rainwater are installed in the tunnel in a centralized manner, so that unified planning, unified design, unified construction and unified management can be carried out. Because of the utility tunnel can avoid causing the damage to ground when the engineering pipeline upgrades the maintenance to can effectively reduce the influence to citizen's life, in recent years, more and more cities begin to plan and use the utility tunnel. However, the utility tunnel belongs to the underground space, the air humidity is large, the ventilation effect is poor, water accumulation is easy to occur, especially in winter and windy weather, the temperature difference in the utility tunnel is large, the pipeline or the welding line is easy to be damaged due to stress deformation, the difficulty is caused for the installation and fixation of the pipeline, and no effective solving means exists in the field at present.

Disclosure of Invention

The invention aims to provide a fixing device and a fixing method for a gas pipeline of a comprehensive pipe gallery, the fixing device has the advantages of simple structure, low cost, strong adaptability, reliable fixing and high safety, and the fixing method has the advantages of simple process, high standardization degree and high working efficiency, and can effectively shorten the construction period and reduce the construction cost.

In order to solve the problems in the prior art, the invention provides a fixing device for a gas pipeline of a comprehensive pipe rack, which comprises fixing supports arranged at intervals along the length direction of the gas pipeline, wherein each fixing support comprises a fixing mounting plate fixed on the floor of the pipe rack and a first hoop tightly embracing the gas pipeline, the bottom of the first hoop is fixedly connected with the fixing mounting plate through a first supporting piece, a compensation mechanism in a shape like a Chinese character 'ji' is arranged at the middle position of the adjacent fixing support of the gas pipeline, a guide support is arranged between the compensation mechanism and the adjacent fixing support, the guide support comprises a guide mounting plate fixed on the floor of the pipe rack and a second hoop tightly embracing the gas pipeline, a guide groove in the direction consistent with the gas pipeline is arranged on the guide mounting plate, a second supporting piece in a shape like a Chinese character 'ji' is arranged at the bottom of the second hoop, and the bottom of the second supporting piece is clamped in the guide groove.

Furthermore, the gas pipeline fixing device for the comprehensive pipe rack further comprises a high-limit support which is arranged corresponding to the compensation mechanism, the high-limit support comprises a high-limit mounting plate which is fixed on the floor of the pipe rack, two high upright columns are fixed on the high-limit mounting plate, first connecting rods which are distributed at intervals are arranged between the two high upright columns, and the top of the compensation mechanism is located at the upper side of the first connecting rods of the high-limit support and the position between the two high upright columns.

Further, the gas pipeline fixing device for the comprehensive pipe rack is characterized in that low-limit supports are respectively arranged on two sides of each high-limit support, each low-limit support comprises a low-limit mounting plate fixed on the floor of the pipe rack, two low vertical columns are fixed on the low-limit mounting plate, a second connecting rod is arranged between the two low vertical columns, and the gas pipeline is located at the position between the upper side of the second connecting rod of the low-limit support and the two low vertical columns.

Furthermore, the utility model provides a utility tunnel gas pipeline fixing device, wherein, first staple bolt includes curved first bracket and first clamp plate, and the both ends of first bracket and first clamp plate are respectively through bolt fixed connection, and the gas pipeline card is between first bracket and first clamp plate, and the both sides of first clamp plate are respectively with gas pipeline welding.

Furthermore, the utility model provides a utility tunnel gas pipeline fixing device, wherein, the second staple bolt includes curved second bracket and second clamp plate, and the both ends of second bracket and second clamp plate are respectively through bolt fixed connection, and the gas pipeline card is between second bracket and second clamp plate, and the both sides of second clamp plate are respectively with gas pipeline welding.

Further, the utility model provides a utility tunnel gas pipeline fixing device, wherein, the both sides of first clamp plate are equipped with first pterygoid lamina respectively, and the both sides of first pterygoid lamina respectively with the gas pipeline welding; and two sides of the second pressing plate are respectively provided with a second wing plate, and two sides of the second wing plate are respectively welded with the gas pipeline.

Further, the utility model provides a utility tunnel gas pipeline fixing device, wherein, the first support piece is the style of calligraphy of falling T, and first support piece and first bracket integrated manufacture, first support piece and fixed mounting panel welding, the second support piece and second bracket integrated manufacture; all leave the interval between high stand, first connecting rod, low stand and the second connecting rod and the gas pipeline.

Further, the comprehensive pipe gallery gas pipeline fixing device is characterized in that mounting tables prefabricated by reinforced concrete are respectively arranged at positions of the pipe gallery floor corresponding to the fixing mounting plate, the guide mounting plate, the high-limit mounting plate and the low-limit mounting plate, and the fixing mounting plate, the guide mounting plate, the high-limit mounting plate and the low-limit mounting plate are respectively fixed on the corresponding mounting tables.

The invention provides a method for fixing a gas pipeline by using the device, which comprises the following steps:

s1, prefabricating an installation platform integrated with the fixed support, the guide support, the high-limit support and the low-limit support on the pipe gallery floor by adopting reinforced concrete according to the distance and the installation position of the fixed support, the guide support, the high-limit support and the low-limit support;

s2, conveying the straight pipe section of the gas pipeline with the anticorrosive coating and the compensation mechanism into the comprehensive pipe gallery, and breaking the anticorrosive coatings on the straight pipe section of the gas pipeline at the positions corresponding to the two sides of the first pressing plate and the second pressing plate according to the installation positions of the fixed support and the guide support;

s3, welding and fixing the first pressure plate and the second pressure plate on the straight pipe section of the gas pipeline, fixing the first pressure plate and the second pressure plate with the first bracket and the second bracket correspondingly through bolts, and fixing the fixed mounting plate and the guide mounting plate on the corresponding mounting tables;

s4, fixing the high-limit support on the corresponding mounting table through the high-limit mounting plate, fixing the low-limit support on the corresponding mounting table through the low-limit mounting plate, and welding the compensation mechanism between the adjacent straight pipe sections of the gas pipeline.

Further, the method for fixing a gas pipeline by using the device of the invention further comprises a step of performing anticorrosion treatment on the welding seam in the steps S3 and S4; in step S4, a space is left between the high upright column and the first connecting rod of the high-limit support, and between the low upright column and the second connecting rod of the low-limit support and the gas pipeline.

Compared with the prior art, the comprehensive pipe gallery gas pipeline fixing device and the method have the following advantages: the invention is characterized in that fixing supports are arranged at intervals along the length direction of a gas pipeline, the fixing supports are provided with a fixing mounting plate fixed on a pipe gallery floor and a first hoop for tightly holding the gas pipeline, the bottom of the first hoop is fixedly connected with the fixing mounting plate through a first supporting piece, meanwhile, a compensation mechanism in a shape like a Chinese character 'ji' is arranged at the middle position of the adjacent fixing support of the gas pipeline, a guide support is arranged between the compensation mechanism and the adjacent fixing support, the guide support is provided with a guide mounting plate fixed on the pipe gallery floor and a second hoop for tightly holding the gas pipeline, a guide groove in the same direction with the gas pipeline is arranged on the guide mounting plate, a second supporting piece in an inverted T shape is arranged at the bottom of the second hoop, and the bottom of the second supporting piece is clamped in the guide groove. Therefore, the utility tunnel gas pipeline fixing device is simple in structure, low in cost, strong in adaptability, reliable in fixing and high in safety. The gas pipeline fixing device has the advantages that the fixing supports are arranged at intervals and tightly hold the gas pipeline through the first hoop, so that the purpose of fixing the gas pipeline in a segmented mode is achieved; the compensation mechanism is arranged in the middle of the adjacent fixed support of the gas pipeline, so that the purpose of absorbing the telescopic deformation of the gas pipeline along the length direction is realized; through set up the direction support between fixing support and compensation mechanism to make the second staple bolt hold tightly the gas pipeline, make second support piece's bottom clamp in the guide way on the direction mounting panel, on the basis that does not influence the gas pipeline along the flexible deformation of length direction, horizontal positioning and vertical location purpose have been realized, the intensity of gas pipeline, rigidity and stability have been guaranteed, and be favorable to increasing the span between the adjacent fixing support, reduce compensation mechanism's the quantity that sets up, reduce the technology and the construction degree of difficulty. By combining the technical means, the stability of installing the gas pipeline in the comprehensive pipe gallery is improved, the problem that the gas pipeline or a welding line is damaged due to the fact that the gas pipeline generates stretching deformation stress approximately caused by temperature difference is solved, the safety and the adaptability to the environment of the gas pipeline are enhanced, and the service life of the gas pipeline is prolonged. The method for fixing the gas pipeline provided by the invention has the advantages of simple process, high standardization degree and high construction speed, and can effectively shorten the construction period and reduce the construction cost.

The following describes a fixing device and method for a gas pipeline of a utility tunnel in detail with reference to the embodiments shown in the drawings.

Drawings

FIG. 1 is a partial schematic view of a utility tunnel gas pipeline fixture of the present invention;

FIG. 2 is a perspective view of a mounting bracket in the utility tunnel gas pipeline fixture of the present invention;

FIG. 3 is an exploded view of a mounting bracket in the utility tunnel gas pipeline fixture of the present invention;

FIG. 4 is a cross-sectional view of the connection of the fixing support and the gas pipeline in the gas pipeline fixing device of the utility tunnel according to the present invention;

FIG. 5 is a top view of the connection of the fixing support and the gas pipeline in the gas pipeline fixing device of the utility tunnel according to the present invention;

FIG. 6 is a perspective view of a guide support in the utility tunnel gas pipeline fixture of the present invention;

FIG. 7 is an exploded view of a guide support in a utility tunnel gas pipeline fixture of the present invention;

FIG. 8 is a perspective view of a high limit support in the utility tunnel gas pipeline securing device of the present invention;

FIG. 9 is a perspective view of a low limit support in the utility tunnel gas pipeline securing device of the present invention;

fig. 10 is a schematic view of a relationship between a low-limit support and a gas pipeline in the utility tunnel gas pipeline fixing device according to the present invention.

Detailed Description

First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.

As shown in fig. 1 to 10, the embodiment of the gas pipeline fixing device for the utility tunnel according to the present invention includes fixing supports 2 spaced along the length direction of a gas pipeline 1, the fixing supports 2 are provided with fixing mounting plates 21 fixed on the floor 3 of the pipe gallery and first anchor ears 22 holding the gas pipeline 1 tightly, and the bottoms of the first anchor ears 22 are fixedly connected with the fixing mounting plates 21 through first supporting members 23; arranging a compensation mechanism 11 in a shape like a Chinese character 'ji' at the middle position of the adjacent fixed support 2 of the gas pipeline 1, and arranging a guide support 4 between the compensation mechanism 11 and the adjacent fixed support 2; the guide support 4 is provided with a guide mounting plate 41 fixed on the pipe gallery floor 3 and a second hoop 42 tightly holding the gas pipeline 1, the guide mounting plate 41 is provided with a guide groove 411 in the same direction as the gas pipeline 1, the bottom of the second hoop 42 is provided with a second support member 43 shaped like an inverted T, and the bottom of the second support member 43 is clamped in the guide groove 411.

The utility model has the advantages of simple structure, low cost, strong adaptability, reliable fixation and high safety. The gas pipeline fixing device has the advantages that the fixing supports 2 are arranged at intervals, and the fixing supports 2 tightly hold the gas pipeline 1 through the first anchor ear 22, so that the purpose of fixing the gas pipeline 1 in a segmented mode is achieved; the purpose of absorbing the telescopic deformation of the gas pipeline 1 along the length direction is realized by arranging the compensating mechanism 11 at the middle position of the adjacent fixed support 2 of the gas pipeline 1; through set up direction support 4 between fixing support 2 and compensation mechanism 11, and make second staple bolt 42 hold tightly gas pipeline 1, make the bottom of second support piece 43 clamp in the guide way 411 on direction mounting panel 41, on the basis that does not influence gas pipeline 1 along the flexible deformation of length direction, horizontal positioning and vertical location purpose have been realized, the intensity of gas pipeline 1 has been guaranteed, rigidity and stability, and be favorable to increasing the span between the adjacent fixing support 2, reduce the quantity that sets up of compensation mechanism 11, reduce the technology and the construction degree of difficulty. By combining the technical means, the stability of installing the gas pipeline in the comprehensive pipe gallery is improved, the problem that the gas pipeline or a welding line is damaged due to the fact that the gas pipeline generates stretching deformation stress approximately caused by temperature difference is solved, the safety and the adaptability to the environment of the gas pipeline are enhanced, and the service life of the gas pipeline is prolonged. It should be noted that the above-mentioned lateral positioning refers to the positioning perpendicular to the direction of the gas duct.

As an optimized scheme, the embodiment is provided with the high-limit support 5 corresponding to the compensation mechanism 11, and the high-limit support 5 adopts the following structure: the high limit mounting plate 51 fixed on the pipe gallery floor 3 is arranged, two high upright posts 52 are fixed on the high limit mounting plate 51, and first connecting rods 53 distributed at intervals are arranged between the two high upright posts 52. Wherein the top of the compensating gear 11 is located at a position between the upper side of the first connecting rod 53 of the high limit support 5 and the two high columns 52. Through setting up high spacing support 5, on the basis that guarantee that compensation mechanism 11 has sufficient deformability, can restrict 11 radial deformations of compensation mechanism too big on the one hand, on the other hand can avoid gas pipeline side direction unstability, has improved stability and security. Meanwhile, the low-limit support 6 is respectively arranged on two sides of the high-limit support 5, and the low-limit support 6 adopts the following structure: the low limit mounting plate 61 fixed on the pipe gallery floor 3 is arranged, two low upright posts 62 are fixed on the low limit mounting plate 61, and a second connecting rod 63 is arranged between the two low upright posts 62. Wherein the gas pipeline 1 is positioned between the upper side of the second connecting rod 63 of the low limit support 6 and the two low columns 62. The low limit support 6 is arranged, so that the effect of limiting the radial deformation of the compensating mechanism 11 to be overlarge can be achieved. It should be noted that, in the initial state, the high column 52, the first link 53, the low column 62 and the second link 63 are all spaced from the gas pipeline 1 to ensure the deformability of the compensating mechanism 11.

As a specific embodiment, the first hoop 22 adopts the following structure: the gas pipeline device comprises a first bracket 221 and a first pressure plate 222 which are both arc-shaped, wherein two ends of the first bracket 221 and the first pressure plate 222 are fixedly connected through bolts respectively, and the gas pipeline 1 is clamped between the first bracket 221 and the first pressure plate 222. In order to enhance the stability and reliability of the connection, the present embodiment welds both sides of the first pressure plate 222 to the gas pipe 1. Similarly, the second hoop 42 adopts the following structure: the gas pipeline device comprises a second bracket 421 and a second pressure plate 422 which are both arc-shaped, wherein two ends of the second bracket 421 and the second pressure plate 422 are respectively fixedly connected through bolts, and a gas pipeline 1 is clamped between the second bracket 421 and the second pressure plate 422. In order to enhance the stability and reliability of the connection, the present embodiment also welds the two sides of the second pressing plate 422 to the gas pipeline 1. According to the invention, the first pressure plate 222 and the second pressure plate 422 are welded with the gas pipeline 1, so that the welding position is only positioned at the upper side position of the gas pipeline on the basis of enhancing the stable connection, and the convenience of operation is improved. Preferably, in the present embodiment, the first wing plates 223 are integrally formed on both sides of the first presser plate 222, and both sides of the first wing plates 223 are welded to the gas duct 1. Through setting up first pterygoid lamina 223, make the welding of first clamp plate 222 and gas pipeline 1 form the axial welding seam, can effectively reduce the shearing damage of axial stress to circumferential weld, strengthened the reliability of first clamp plate 222 and gas pipeline 1 welding. Similarly, in the present embodiment, the second wing plates 423 are respectively disposed on both sides of the second pressure plate 422, and both sides of the second wing plates 423 are respectively welded to the gas pipe 1. Through setting up second pterygoid lamina 423, make the welding of second clamp plate 422 and gas pipeline 1 form the axial weld, can effectively reduce the shearing damage of axial stress to circumferential weld, strengthened second clamp plate 422 and gas pipeline 1 welded reliability. It should be noted that, in order to improve the standardization and the universality of the parts, the present invention makes the first anchor ear 22 and the second anchor ear 42 adopt the same structure, and makes the first supporting member 23 also adopt the inverted T-shaped structure, wherein, the first supporting member 23 and the first bracket 221 are manufactured integrally, and the first supporting member 23 is welded with the fixed mounting plate 21; the second supporting member 43 is integrally formed with the second socket 421.

In practical application, in order to improve the stability of the support and the standardization of the installation operation, the installation tables 31 prefabricated by reinforced concrete are respectively arranged on the pipe gallery floor 3 at the positions corresponding to the fixed installation plate 21, the guide installation plate 41, the high limit installation plate 51 and the low limit installation plate 61, so that the fixed installation plate 21, the guide installation plate 41, the high limit installation plate 51 and the low limit installation plate 61 are fixed on the corresponding installation tables 31. In order to improve the convenience of disassembly and assembly, the mounting table 31 is embedded with threaded columns, and the fixed mounting plate 21, the guide mounting plate 41, the high limit mounting plate 51 and the low limit mounting plate 61 are respectively provided with strip-shaped mounting holes matched with the threaded columns, so that the mounting plates can be fixed through the threaded columns and the strip-shaped mounting holes, and the positions of the mounting plates can be conveniently adjusted. However, the fixing method of each mounting plate and the corresponding mounting table 31 is not limited to the above-described form, and other fixing structures may be adopted.

Based on the same conception, the invention also provides a method for fixing the gas pipeline by using the device, which comprises the following steps:

s1, prefabricating the installation platform 31 integrated with the fixed support 2, the guide support 4, the high limit support 5 and the low limit support 6 on the pipe gallery floor 3 by using reinforced concrete according to the distance and the installation position of the fixed support, the guide support and the low limit support.

S2, conveying the straight pipe section of the gas pipeline 1 with the anticorrosive coating and the compensation mechanism 11 into the comprehensive pipe gallery, and breaking the anticorrosive coating on the straight pipe section of the gas pipeline 1, which corresponds to the two sides of the first pressing plate 222 and the second pressing plate 422 according to the installation positions of the fixed support 2 and the guide support 4. According to the invention, the straight pipe section of the gas pipeline 1 and the compensation mechanism 11 are subjected to anti-corrosion treatment before being transported to the comprehensive pipe gallery, so that the installation procedure in the comprehensive pipe gallery can be saved, and the working efficiency is improved. In practical application, the invention generally adopts a 3PE anticorrosive layer for the gas pipeline 1.

S3, welding and fixing the first pressure plate 222 and the second pressure plate 422 on the straight pipe section of the gas pipeline 1, fixing the first pressure plate 222 and the second pressure plate 422 on the first bracket 221 and the second bracket 421 through bolts, and fixing the fixing mounting plate 21 and the guide mounting plate 41 on the corresponding mounting table 31. Through first clamp plate 222 and second clamp plate 422 and the welding of gas pipeline 1, improved the steadiness of being connected of fixing support 2 and direction support 4 and gas pipeline 1.

And S4, fixing the high-limit support 5 on the corresponding mounting table 31 through the high-limit mounting plate 51, fixing the low-limit support 6 on the corresponding mounting table 31 through the low-limit mounting plate 61, and welding the compensation mechanism 11 between the adjacent straight pipe sections of the gas pipeline 1. The compensation mechanism 11 can effectively absorb the telescopic deformation of the gas pipeline 1 along the length direction, so that the problem of damage to the gas pipeline or a welding seam caused by telescopic deformation stress is avoided, and the safety of the gas pipeline is enhanced; the radial deformation of the gas pipeline can be prevented from being overlarge through the high limit support 5 and the low limit support 6, and the lateral instability of the gas pipeline 1 can be avoided.

In order to ensure the reliability of corrosion prevention, a process of performing corrosion prevention treatment on the weld is also performed in step S3 and step S4. In order to ensure the deformability of the compensating mechanism, in step S4, a space is left between the high upright column and the first connecting rod of the high-limit support and between the low upright column and the second connecting rod of the low-limit support and the gas pipeline.

The method for fixing the gas pipeline provided by the invention has the advantages of simple process, high standardization degree and high construction speed, and can effectively shorten the construction period and reduce the construction cost. It should be pointed out that the threaded column has been buried underground on the mount table, be equipped with respectively on fixed mounting panel, direction mounting panel, high spacing mounting panel and the low spacing mounting panel with threaded column complex bar mounting hole to in through threaded column and bar mounting hole fixed each mounting panel, and conveniently adjust each mounting panel position.

Practical application shows that the invention can produce the following beneficial effects: 1. the gas pipeline fixing and positioning device has the advantages that the gas pipeline in the comprehensive pipe rack is fixed and positioned, the problem that the gas pipeline generates telescopic deformation stress due to approximate temperature difference and further the gas pipeline or a welding line is damaged is solved, and the gas pipeline fixing and positioning device has the advantages of being simple in structure, convenient to operate and convenient to maintain; 2. the welding positions of the fixed support and the guide support and the gas pipeline are positioned at the upper half part, so that the welding operation and the anti-corrosion treatment are easy; the straight pipe section of the gas pipeline and the compensation mechanism can be customized in a factory, so that the installation procedure in the comprehensive pipe gallery can be saved, and the working efficiency is improved; 3. the gas pipeline is convenient to disassemble, assemble and maintain, and is beneficial to replacement, upgrading and reconstruction of the gas pipeline.

The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.