阅读说明：本技术 一种水电站油气水管路及电缆桥架综合支吊架系统 (Comprehensive support and hanger system for oil-gas water pipeline and cable bridge of hydropower station ) 是由 王豪 陈冬波 郑涛平 李玲 郭学洋 桂绍波 彭志远 于 2020-12-29 设计创作，主要内容包括：一种水电站油气水管路及电缆桥架综合支吊架系统,包括油气水管路电缆桥架综合吊架、油气水管路系统失稳备用综合支架、油气水管路系统轴向力支撑支架、油气水管路系统抗重坐地支撑支架；油气水管路电缆桥架综合吊架、油气水管路系统失稳备用综合支架设置在机组段,油气水管路系统轴向力支撑支架布置在端部机组段的混凝土墙面上,油气水管路系统抗重坐地支撑支架布置在安装场混凝土楼板上。本发明有效的解决了在狭小的空间中高利用率的综合排布油气水干管和电缆桥架的问题,避免了支吊架数量及类型过于庞杂,同时考虑了各辅机系统不同运行工况下所产生的动态荷载,增加了支吊架系统的稳定性。(A hydropower station oil gas water pipeline and cable bridge comprehensive support and hanger system comprises an oil gas water pipeline and cable bridge comprehensive hanger, an oil gas water pipeline system instability standby comprehensive support, an oil gas water pipeline system axial force support and an oil gas water pipeline system anti-weight support; the comprehensive hanger of the oil-gas-water pipeline cable bridge and the comprehensive support for instability of the oil-gas-water pipeline system are arranged on the unit section, the axial force supporting support of the oil-gas-water pipeline system is arranged on a concrete wall surface of the unit section at the end part, and the anti-weight-bearing supporting support of the oil-gas-water pipeline system is arranged on a concrete floor slab of an installation site. The invention effectively solves the problem of high-utilization rate comprehensive arrangement of oil-gas-water main pipes and cable bridges in a narrow space, avoids the excessively numerous and complicated number and types of the supporting and hanging frames, simultaneously considers the dynamic loads generated under different operation working conditions of each auxiliary engine system, and increases the stability of the supporting and hanging frame system.)

1. The utility model provides a power station oil gas water pipeline and cable testing bridge are synthesized and are propped up gallows system which characterized in that: the oil-gas-water pipeline cable bridge comprehensive hanging bracket comprises an oil-gas-water pipeline cable bridge comprehensive hanging bracket (1), an oil-gas-water pipeline system instability standby comprehensive bracket (2), an oil-gas-water pipeline system axial force supporting bracket (3) and an oil-gas-water pipeline system anti-weight-sitting supporting bracket (4); the comprehensive hanger (1) for the oil-gas-water pipeline cable bridge and the comprehensive support (2) for the instability of the oil-gas-water pipeline system are arranged on the unit section (5), the axial force supporting support (3) for the oil-gas-water pipeline system is arranged on a concrete wall surface (6) of the end unit section, and the anti-weight-bearing supporting support (4) for the oil-gas-water pipeline system is arranged on a concrete floor (7) of an installation site;

the oil-gas-water pipeline cable bridge comprehensive hanger (1) penetrates through the whole unit section; and each unit section of the comprehensive support (2) for instability of the oil-gas-water pipeline system is provided with one.

2. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 1, which is characterized in that: the comprehensive hanger (1) for the oil-gas-water pipeline cable bridge comprises columns (1-2), cable bridge supporting arms (1-5) are arranged on the columns (1-2), a first base (1-1) is arranged at the top of each column (1-2), heavy rear bottom expanding anchor bolts (1-6) are arranged on the first base (1-1), cross arms (1-3) are arranged between the columns (1-2), and screw pipe clamps (1-4) are arranged on the cross arms (1-3).

3. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 1, which is characterized in that: the comprehensive support (2) for the instability standby of the oil-gas water pipeline system comprises first I-shaped steel (2-2), the first I-shaped steel (2-2) is arranged on machine piers (2-9) and concrete columns (2-10) through a second base (2-1), steel plates (2-6) are welded on the first I-shaped steel (2-2), and an oil-gas water main pipe (8) is fastened on the first I-shaped steel (2-2) and the steel plates (2-6) through a first U-shaped hoop (2-3);

the two first I-shaped steels (2-2) are connected through channel steels (2-7).

4. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 3, wherein the comprehensive support and hanger system comprises: a first stainless steel cushion block (2-4) is arranged between the oil gas water main pipe (8) and the first I-shaped steel (2-2).

5. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 1, which is characterized in that: the oil-gas water pipeline system axial force supporting bracket (3) comprises a second channel steel (3-3), the second channel steel (3-3) is arranged on a third base (3-2), the third base (3-2) is fixed on a concrete wall surface (6) of an end unit section through a self-cutting anchor bolt (3-1), an oil-gas water main pipe (8) is fixed on the second channel steel (3-3) through a second U-shaped anchor bolt (3-4), and a second stainless steel cushion block (3-5) is arranged between the oil-gas water main pipe (8) and the second channel steel (3-3).

6. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 1, which is characterized in that: the anti-weight support bracket (4) for the oil-gas water pipeline system comprises rib plates (4-4), the rib plates (4-4) are welded on an oil-gas water main pipe (8), the bottom ends of the rib plates (4-4) are arranged on rectangular frames built by third channel steel (4-1) and fourth channel steel (4-2) through second stainless steel cushion blocks (4-3), and the rectangular frames are arranged on a concrete floor (7).

The second stainless steel cushion block (4-3) is arranged on a rectangular frame built by the third channel steel (4-1) and the fourth channel steel (4-2) through bolts.

7. The comprehensive support and hanger system for the oil-gas water pipelines and the cable bridges of the hydropower station according to claim 6, wherein the comprehensive support and hanger system comprises: a reinforcing rib plate (4-5) is arranged between the third channel steel (4-1) and the fourth channel steel (4-2).

Technical Field

The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a comprehensive support and hanger system for an oil-gas-water pipeline and a cable bridge of a hydropower station.

Background

The comprehensive support and hanger system for oil-gas-water pipelines and cable bridges of a large hydropower station organically integrates turbine oil in hydraulic machinery into an oil supply and discharge pipe, a gas pipeline for braking, a closed bus micro-positive pressure gas supply pipeline (if any), a gas pipeline for a speed regulator gas tank, a clean water pipeline, a water pipeline for fire protection and a cable bridge into a same stable rigid integral support system, so that the turbine oil of a unit, the gas for braking, the gas for a speed regulator oil pressure device, lubricating water and fire water can be stably supplied to user equipment, and the comprehensive support and hanger system plays an important role in safe and stable operation of the hydropower station.

According to the design idea of a conventional oil-gas-water system pipeline and a cable bridge support system, a pipeline of a hydraulic machine and a supporting and hanging bracket of an electric primary cable bridge are generally separately arranged, and pipelines of a turbine oil system, a medium-low pressure compressed air system, a clean water system and a fire water system in the hydraulic machine are mostly independently arranged, so that a relatively single and simple supporting and hanging bracket set is constructed.

For a power station with a tense plant layout, the traditional design method has the following defects:

(1) the hydraulic mechanical auxiliary machine and the fire-fighting system are dozens of main pipes in total, and the electric power penetrates through 2-3 layers and 2-3 rows of cable bridges of the whole unit section at the water turbine layer at one time. If each system all sets up a gallows alone, guaranteeing under the prerequisite of comfortable passerby passageway (general 2 ~ 2.5m is wide), the underground factory building space that receives the former planning of large-scale power station factory building span influence must be not enough to need increase the excavation, increased the civil engineering cost.

(2) Because pipeline and cable testing bridge are numerous, set up a gallows for every system alone, the quantity of an increase gallows that can be very big, and the gallows interval of cable testing bridge is inconsistent with the interval of water machine auxiliary system pipeline, and the phenomenon that a gallows is uneven can appear inevitably, influences pleasing to the eye.

(3) Because a great number of hangers, the supporting points of the oil-gas-water main pipe and the cable bridge support hanger are generally concrete floors or columns, the space of a factory building is limited, and the problem of a hanger conflict is likely to occur.

(4) The traditional support and hanger mainly considers the weight of a pipeline body and a medium, axial thrust generated by a pipeline under different operation conditions is ignored, and if the support and hanger of a certain system is unstable, the whole pipeline system can be collapsed, so that serious accidents are caused.

Disclosure of Invention

The invention aims to overcome the defects of the background technology, and provides a comprehensive support and hanger system for an oil-gas water pipeline and a cable bridge of a hydropower station, which effectively solves the problem of high-utilization rate comprehensive arrangement of an oil-gas water main pipe and a cable bridge in a narrow space, avoids the excessive number and types of support and hangers, simultaneously considers dynamic loads generated under different operation working conditions of auxiliary machine systems, increases the stability of the support and hanger system, adopts hidden arrangement for the cable bridge, adopts a central alignment arrangement mode for the oil-gas water main pipe, and better meets the design principle of 'beautiful electromechanics'.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a power station oil gas water pipeline and cable testing bridge are synthesized and are propped up gallows system which characterized in that: the comprehensive lifting frame comprises an oil-gas-water pipeline cable bridge comprehensive lifting frame, an oil-gas-water pipeline system instability standby comprehensive support, an oil-gas-water pipeline system axial force supporting support and an oil-gas-water pipeline system anti-weight-bearing supporting support; the comprehensive hanger for the oil-gas-water pipeline cable bridge and the comprehensive support for the instability of the oil-gas-water pipeline system are arranged on the unit section, the axial force supporting support of the oil-gas-water pipeline system is arranged on a concrete wall surface of the end unit section, and the anti-weight support of the oil-gas-water pipeline system is arranged on a concrete floor slab of an installation site;

the comprehensive hanger of the oil-gas water pipeline cable bridge penetrates through the whole unit section; and each unit section of the comprehensive support for instability of the oil-gas-water pipeline system is provided with one pair.

Further, the gallows is synthesized to oil gas water pipeline cable testing bridge includes the stand, be provided with the cable testing bridge trailing arm on the stand, the stand top is provided with first base, be provided with heavy back reaming base crab-bolt on the first base, two be provided with the cross arm between the stand, be provided with the screw pipe clamp on the cross arm.

Further, the comprehensive support for the instability of the oil-gas water pipeline system comprises a first I-shaped steel, the first I-shaped steel is arranged on a machine pier and a concrete column through a second base, a steel plate is welded on the first I-shaped steel, and an oil-gas water trunk pipe is closed on the first I-shaped steel and the steel plate through a first U-shaped hoop; the two first I-shaped steels are connected through channel steel.

Furthermore, a first stainless steel cushion block is arranged between the oil-gas water main pipe and the first I-shaped steel.

Further, oil gas water pipe way system axial force support holder includes the second channel-section steel, the second channel-section steel sets up on the third base, the third base is fixed on the concrete wall of end unit section through self-cutting end anchor bolt, and the oil gas water main is fixed on the second channel-section steel through second U type staple bolt, sets up second stainless steel cushion between oil gas water main and second channel-section steel.

Further, the anti-weight support bracket for the oil-gas water pipeline system comprises a rib plate, the rib plate is welded on the oil-gas water main pipe, the bottom end of the rib plate is arranged on a rectangular frame constructed by a third channel steel and a fourth channel steel through a second stainless steel cushion block, and the rectangular frame is arranged on a concrete floor slab; and the second stainless steel cushion block is arranged on the rectangular frame built by the third channel steel and the fourth channel steel through bolts.

Furthermore, a reinforcing rib plate is arranged between the third channel steel and the fourth channel steel.

The comprehensive support and hanger system has the following beneficial effects:

(1) aiming at a factory building with a relatively small floor height and a relatively small channel of a power station, an oil-gas water main pipe and a cable bridge of a hydraulic mechanical auxiliary system are uniformly distributed on a comprehensive support hanger, a plurality of pipelines and bridges under limited spatial arrangement are fully utilized, and civil engineering excavation is avoided;

(2) the hydraulic mechanical auxiliary system generates axial thrust under different working conditions, and the axial force supporting bracket can counteract the generated axial force, so that the stability of the comprehensive bracket is improved;

(3) the instability standby comprehensive support can support all oil-gas-water pipelines of one unit section under the extreme working condition of instability of the oil-gas-water pipeline cable bridge comprehensive hanger, so that the reliability of the comprehensive support system is improved;

(4) in the comprehensive hanger for the oil-gas-water pipeline cable bridge, the centers of all pipelines are aligned, the cable bridge is hidden above the pipe rows, the pipelines are tidy and attractive when being observed from a pedestrian passage, and the comprehensive hanger well accords with the 'beautiful electromechanical' design principle of a modern hydropower station.

Drawings

Fig. 1 is a schematic diagram of the general arrangement of a comprehensive support and hanger system for oil and gas water pipelines and cable bridges of a hydropower station provided by the invention.

Fig. 2 is a schematic structural view of an oil-gas-water pipeline cable bridge comprehensive hanger.

Fig. 3 is a schematic diagram of the arrangement of the comprehensive hanger for the oil gas water main pipe and the cable bridge.

Fig. 4 is a schematic structural diagram of a comprehensive support for instability of an oil-gas-water pipeline system.

Fig. 5 is a schematic sectional view taken along the line a-a in fig. 4.

Fig. 6a to 6b are schematic structural views of an axial force supporting bracket of an oil-gas-water pipeline system.

FIG. 7 is a schematic view of a support bracket for anti-weight support of the hydrocarbon water pipeline system.

Fig. 8 is a schematic sectional view taken along the line a-a in fig. 7.

Wherein: the comprehensive hanger 1 for the cable bridge of the oil-gas water pipeline, the comprehensive support 2 for the instability of the oil-gas water pipeline system, the axial force support 3 for the oil-gas water pipeline system, the anti-weight support 4 for the oil-gas water pipeline system, the unit section 5, the concrete wall surface 6, the concrete floor 7, the oil-gas water main pipe 8 and the cable bridge 9;

the device comprises a first base 1-1, upright columns 1-2, cross arms 1-3, screw type pipe clamps 1-4, cable bridge bracket arms 1-5 and heavy rear bottom expanding anchor bolts 1-6;

2-1 parts of a second base, 2-2 parts of first I-steel, 2-3 parts of a first U-shaped hoop, 2-4 parts of a first stainless steel cushion block, 2-5 parts of second I-steel, 2-6 parts of a steel plate, 2-7 parts of first channel steel, 2-8 parts of a first expansion bolt, 2-9 parts of a machine pier and 2-10 parts of a concrete column;

3-1 of a self-undercut anchor bolt, 3-2 of a third base, 3-3 of a second channel steel, 3-4 of a second U-shaped anchor ear and 3-5 of a second stainless steel cushion block;

4-1 parts of a third channel steel, 4-2 parts of a fourth channel steel, 4-3 parts of a second stainless steel cushion block, 4-4 parts of a ribbed plate, 4-5 parts of an additional ribbed plate and 4-6 parts of a second expansion bolt.

Detailed Description

The invention is described in further detail below with reference to the following figures and examples, which should not be construed as limiting the invention.

As shown in fig. 1, the invention provides a comprehensive support and hanger system for oil-gas-water pipelines and cable bridges of a hydropower station, which mainly comprises the following four support and hanger forms: the comprehensive hanger 1 for the oil-gas water pipeline cable bridge frame, the comprehensive support 2 for instability of the oil-gas water pipeline system, the axial force support 3 for the oil-gas water pipeline system and the anti-weight support 4 for the oil-gas water pipeline system are arranged on the support. The comprehensive hanger 1 for the oil-gas-water pipeline cable bridge and the comprehensive support 2 for the instability of the oil-gas-water pipeline system are arranged on the unit section 5, the axial force supporting support 3 for the oil-gas-water pipeline system is arranged on a concrete wall surface 6 of the unit section at the end part, and the anti-weight support 4 for the oil-gas-water pipeline system is arranged on a concrete floor 7 of an installation site.

As shown in fig. 2-3, the comprehensive hanger 1 for the oil-gas-water pipeline cable bridge comprises: the device comprises various connecting pieces such as a first base 1-1, an MIQ-90 upright post 1-2, an MIQ-90 cross arm 1-3, a screw type pipe clamp 1-4, an MC-BE-630OC-A cable bridge bracket 1-5, a heavy rear under-reamed anchor bolt 1-6 and the like. The comprehensive hanger 1 of the oil-gas water pipeline cable bridge penetrates through the whole unit section and bears the weight of all water pipelines and cable bridges.

The cable bridge bracket is characterized in that cable bridge bracket arms 1-5 are arranged on the upright posts 1-2, a first base 1-1 is arranged at the top of the upright posts 1-2, heavy rear bottom expanding anchor bolts 1-6 are arranged on the first base 1-1, a cross arm 1-3 is arranged between the two upright posts 1-2, and screw type pipe clamps 1-4 are arranged on the cross arm 1-3.

The oil-gas-water main pipe 8 is fixed on the cross arm 1-3 through a screw pipe clamp 1-4, the cable bridge 9 is fixed by using a bridge bracket supporting arm 1-5, and the load of the pipeline and the bridge is transmitted to the concrete ceiling through the upright post 1-2, the first base 1-1 and the heavy rear expanded-base anchor bolt 1-6.

Fig. 3 is a layout diagram of a comprehensive hanger for an oil gas water main pipe and a cable bridge, the hanger for supporting a pipeline and the cable bridge and the hanger for only supporting the cable bridge are arranged in a staggered mode, the requirement of a pipeline hanger is met, the supporting requirement of the cable bridge is also met, the number of pipelines and bridge supporting pieces is greatly reduced, and a hanger system is well arranged and neat and attractive.

Referring to fig. 4-5, the comprehensive support 2 for oil-gas-water pipeline system instability comprises: 2-1 parts of a second base, 2-2 parts of No. 16 first I-steel, 2-3 parts of a first U-shaped hoop, 2-4 parts of a first stainless steel cushion block, 2-5 parts of No. 14 second I-steel, 2-6 parts of a steel plate, 2-7 parts of No. 16 first channel steel, 2-8 parts of a first expansion bolt and the like. A pair of comprehensive supports 2 for the instability of the oil-gas-water pipeline system is arranged on each unit section, and when the comprehensive hanger 1 for the cable bridge of the oil-gas-water pipeline system fails, the comprehensive supports 2 for the instability of the oil-gas-water pipeline system can bear the weight of all water machine pipelines of one unit section.

The first I-shaped steel 2-2 is arranged on the machine pier 2-9 and the concrete column 2-10 through the second base 2-1, part of the oil gas water trunk pipes 8 are combined on the first I-shaped steel 2-2 through the first U-shaped anchor ear 2-3, the rest of the medium-pressure gas system trunk pipes are combined on the steel plate 2-6 through the first U-shaped anchor ear 2-3, the steel plate 2-6 is welded on the first I-shaped steel 2-2, and the load is transmitted to the machine pier 2-9 and the concrete column 2-10 through the second base 2-1. In order to enhance the stability of the support, the first I-shaped steel 2-2 main beam is connected by using first channel steel 2-7, and the lower first I-shaped steel 2-2 cantilever beam is closed on the main beam by using second I-shaped steel 2-5. In addition, in order to prevent electrochemical corrosion between the stainless steel pipeline and the I-shaped steel, a first stainless steel cushion block 2-4 is additionally arranged between the pipeline and the I-shaped steel.

Referring to fig. 6a to 6b, the oil and gas water pipeline system axial force support bracket 3 includes: 3-1 of a self-undercut anchor bolt, 3-2 of a third base, 3-3 of a No. 16 second channel steel, 3-4 of a second U-shaped anchor ear, 3-5 of a second stainless steel cushion block and the like. The axial force supporting bracket 3 of the oil-gas-water pipeline system is arranged on a concrete wall surface 6 of the end unit section and is used for bearing the axial water thrust generated by changing the pipeline due to the working condition.

The second channel steel 3-3 is arranged on a third base 3-2, the third base 3-2 is fixed on a concrete wall surface 6 of the end unit section through a self-undercut anchor bolt 3-1, and the oil-gas water main pipe 8 is fixed on the second channel steel 3-3 through a second U-shaped anchor bolt 3-4. Because the different oil gas water main elevations are inconsistent, and in order to ensure the reliability of the axial force supporting bracket 3 of the oil gas water pipeline system, six second channel steels 3-3 (which are arranged in a staggered way on the plane) are respectively combined with different oil gas water main pipes 8 (as shown in figures 6 a-6 b). In addition, a second stainless steel cushion block 3-5 is arranged between the oil gas water main pipe 8 and the second channel steel 3-3 to prevent electrochemical corrosion.

The oil gas water main pipe 8 can generate axial load when the valve is switched on and off or the working condition is changed, the load is transmitted to the second channel steel 3-3 through the second U-shaped hoop 3-4, the second channel steel 3-3 transmits the axial load to the concrete wall surface 8 through the third base 3-2, and the second channel steel 3-3 is only subjected to axial force tension or pressure, so that the bending moment is small, and the strength is high.

Referring to fig. 7-8, the anti-weight support bracket 4 for the oil and gas water pipeline system comprises: 4-1 of 16# third channel steel, 4-2 of 16# fourth channel steel, 4-3 of a second stainless steel cushion block, 4-4 of a stainless steel rib plate, 4-5 of an additional rib plate, 4-6 of a second expansion bolt and the like. The anti-weight support bracket 4 for the oil-gas-water pipeline system is arranged on the 816.40 m-height ground of an installation field and bears the axial weight of the through-floor riser.

The rib plate 4-4 is welded on the oil-gas water main pipe 8, the second stainless steel cushion block 4-3 is welded at the bottom end of the rib plate 4-4, the second stainless steel cushion block 4-3 is fixed on a rectangular frame constructed by the third channel steel 4-1 and the fourth channel steel 4-2 through bolts, and the rectangular frame is arranged on the concrete floor 7 through the second expansion bolts 4-6, so that the longitudinal load of the oil-gas water main pipe 8 is transmitted to the concrete floor 7. The reinforcing rib plate 4-5 is welded between the channel steels 4-1 and 4-2 to increase the rigidity of the rectangular frame.

The system operation mechanism comprises: when the power station normally operates, the comprehensive hanger 1 for the oil-gas-water pipeline cable bridge supports bears the gravity of an oil-gas-water main pipe and a cable bridge support, and when the working condition of each auxiliary machine system changes, for example, the on-off of a main pipe valve can generate a large acting force in the direction of the axis of a pipeline. In order to prevent the situation from generating, the axial force supporting bracket 3 of the oil-gas water pipeline system is used for bearing axial load, so that the comprehensive hanger 1 of the cable bridge frame of the oil-gas water pipeline system basically only bears gravity under any working condition. For the reliability that increases whole a gallows system, every unit section increases a pair oil gas water pipe-line system for unstability comprehensive support 2, if oil gas water pipe-line cable testing bridge comprehensive gallows 1 takes place the destruction under extreme operating mode, for avoiding the collapse of main pipe, oil gas water pipe-line system for unstability comprehensive support 2 then plays the effect of bearing all oil gas water pipe way gravities of a unit section. The oil gas water main pipe passes through to the hydraulic turbine layer from the layer of being qualified for the next round of competitions, and the difference in height is about 6m, supports support 4 through the anti heavy seat of oil gas water pipeline system and transmits the weight of auxiliary engine main pipe to the concrete floor, because pipeline and support belong to rigid connection, the phenomenon of sliding can not appear, so under steady state and dynamic operating mode, the axial of layer pipeline and radial stability can all be guaranteed strides. The pipeline and the bridge support system formed by the support and hanger ensure the safe and stable operation of the whole unit and the power station.

At present, the comprehensive support 2 for the instability of the oil-gas-water pipeline system is subjected to stress analysis, and in the comprehensive support 2 for the instability of the oil-gas-water pipeline system, the 16# first I-shaped steel 2-2 mainly bears the gravity of two DN150 water pipes, four DN100 low-pressure air pipes and two DN50 medium-pressure air pipes of one unit section. In order to simplify the analysis, the eight pipelines are filled with media and then treated as concentrated force acting on the middle point of the I-shaped steel, and the I-shaped steel can be regarded as a simple supporting beam model.

And (3) calculating:

1) single span beam form: simply supporting a beam;

2) load stress form: the middle of the simply supported beam is subjected to concentrated force load;

3) basic parameters of the beam:

the length L is 2.45m, the material quality Q235 is standard 16# I-steel;

cross-sectional characteristics: ix 1130cm⁴，Wx＝141cm³，Sx＝80.8cm³，Iy＝93cm⁴，Wy＝21.2cm³，G＝20.5kg/m；

The X-axis plastic development coefficient γ X is 1.05;

elastic modulus E-206 GPa

The deflection control value [ v ] is L/250;

bending resistance design value f: 205N/mm²。

4) Magnitude of concentrated force (single beam force): pd ═ (16 × 2+5.6 × 4+1.9 × 2)/2 ═ 29 KN;

5) and (3) calculating the result:

maximum bending moment Mmax is Pd multiplied by L/4 is 17.8KN

Bending positive stress sigma max (Mmax/(gamma x Wx) ═ 120.23N/mm²

Maximum deflection fmax ═ Pd × L³/(48×E×Ix)＝3.82mm

Relative deflection v-fmax/L-1/625

6) And (4) analyzing results:

bending positive stress sigma max is 120.23N/mm²<Bending resistance design value f: 205N/mm²；

Relative deflection v is 1/625< deflection control value [ v ] L/250;

therefore, the structural steel selected by the comprehensive support 2 for the instability of the oil-gas-water pipeline system can meet the strength requirement of bearing the weight of all oil-gas-water main pipes of one unit section under the instability working condition of the comprehensive hanger 1 for the oil-gas-water pipeline cable bridge.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Those not described in detail in this specification are within the skill of the art.