CN212776820U - Combined cold emptying frame for ocean platform - Google Patents

Abstract

The utility model discloses a cold blow-down frame of platform combination formula, including combination formula blow-down pipe, combination formula riser, horizontal brace and bracing, combination formula blow-down pipe and combination formula riser be erect and mutual parallel arrangement, combination formula blow-down pipe and combination formula riser between respectively through horizontal brace and bracing interconnect fixed. The utility model has the characteristics of simple structure is reliable, the security performance is high, has reduced the construction degree of difficulty, has reduced installation cost.

Description

Combined cold emptying frame for ocean platform

Technical Field

The utility model relates to an oil refining equipment field, in particular to platform combination formula cold unloading frame.

Background

The COLD air release (COLD VENT) system of the offshore oil platform generally comprises a COLD air release tank, a flame arrester, a COLD air release pipe and the like, wherein the COLD air release pipe is used for directly releasing overpressure gas of the COLD air release tank of platform equipment and pipelines thereof into the atmosphere and is of great importance for protecting the production safety of the platform. Considering the impact of combustible or harmful gases entering the atmosphere on the safety of the platform, the cold blow-down pipe as a gas outlet should be as far away from the production area and the living area as possible, and is arranged at one corner of the platform and is usually positioned downwind of the main wind direction of the environmental conditions of the platform. According to the conventional method, because the cold emptying vertical pipe is higher in height and weaker in strength, a supporting structure needs to be additionally and independently arranged, the whole type is more complex, the steel consumption is increased, and the weight is also increased. In addition, the height of the cold-relieved riser often affects the drill ship coverage, resulting in difficult placement and affecting the platform drilling and workover operations. At present, the orientation of the cold air vent of the offshore platform has various designs, some are upward, some are downward, and some are sideward. Upward is most beneficial to the diffusion of combustible gas, but rain and snow easily enter the hollow pipe; downward is most unfavorable for the diffusion of combustible gas, but rain and snow are difficult to enter the emptying pipe; towards the sides, the flat end outlets are more favorable for the diffusion of combustible gases, but can enter a little rain or snow.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies existing in the prior art, the utility model provides an ocean platform combination formula cold air release frame has simple structure characteristics reliable, that the security performance is high, has reduced the construction degree of difficulty, has reduced installation cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cold unloading frame of platform combination formula, includes combination formula blow-down pipe, combination formula riser, horizontal brace and bracing, combination formula blow-down pipe and combination formula riser be erect and mutual parallel arrangement, combination formula blow-down pipe and combination formula riser between respectively through horizontal brace and bracing interconnect fixed.

The combined type emptying pipe comprises a cold emptying pipe, an equal-diameter tee joint, a long-radius elbow, a straight pipe and a first rib plate flange plate, wherein the bottom end of the cold emptying pipe is fixedly connected with a base through a first reinforcing rib plate, and the top end of the cold emptying pipe is connected with the straight pipe through the long-radius elbow.

The cold emptying pipe is provided with an equal-diameter tee joint, the bottom side of the equal-diameter tee joint is provided with a first circular rib plate connected with the cold emptying pipe, and a flange is arranged on a side opening of the equal-diameter tee joint.

And a first rib plate flange plate is arranged on the cold emptying pipe between the equal-diameter tee joint and the first reinforcing rib plate and is connected with the cold emptying pipe through a bolt.

The number of the first reinforcing rib plates is 4, and the first reinforcing rib plates are uniformly distributed around the bottom of the cold emptying pipe respectively.

The length of the straight pipe is 4 times of the pipe inner diameter of the cold emptying pipe, the outlet end face of the straight pipe forms an included angle of 45 degrees with the vertical direction, and the outlet end face faces the lower side.

The number of the combined type emptying pipes is 1.

The combined type vertical pipe comprises a vertical pipe, second reinforcing rib plates, second circular rib plates and second rib plate flange plates, wherein the second circular rib plates are located at the top end of the vertical pipe, the number of the second reinforcing rib plates is 4, and the second reinforcing rib plates are uniformly distributed around the bottom of the vertical pipe.

And a second rib plate flange plate is arranged on the vertical pipe and is connected with the vertical pipe through a bolt.

The number of the combined type vertical pipes is 2.

The utility model has the advantages that:

the utility model discloses on the basis of realizing this traditional function of combustible gas emission, carried out the innovative design: the pressure relief and support functions of the combined type emptying pipe are combined into a whole, so that the structural form is simplified, and the consumption of steel and the overall weight are reduced; a detachable first rib plate flange plate is arranged at the bottom of the cold emptying pipe, and the drilling ship can be laid down and avoided when covered; the outlet of the cold emptying pipe is obliquely cut by 45 degrees towards the lower side, so that the air diffusion is facilitated, and the rainwater entering can be effectively reduced.

The utility model discloses easy dismounting, characteristics that the safety in utilization performance is high have reduced the construction degree of difficulty, have reduced installation cost.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic connection diagram of the combined riser of the present invention;

FIG. 4 is a schematic view of the combined blow-down tube structure and block line connection of the present invention;

fig. 5 is a schematic structural view of the combined riser of the present invention;

fig. 6 is a schematic structural view of the first rib plate flange and the second rib plate flange of the present invention;

fig. 7 is a schematic structural view of a first circular rib plate of the present invention;

fig. 8 is a top view of the first reinforcing rib plate and riser fixing base structure of the present invention.

In the figure: the combined type blow-down pipe 1, the cold blow-down pipe 1-1, the constant-diameter tee joint 1-2, the flange 1-3, the first circular rib plate 1-4, the first reinforcing rib plate 1-5, the long-radius elbow 1-6, the straight pipe 1-7, the first rib plate flange plate 1-8, the combined type vertical pipe 2-1, the second rib plate flange plate 2-2, the second reinforcing rib plate 2-3, the second circular rib plate 2-4, the horizontal support 3, the diagonal support 4, the block pipeline 5 and the vertical pipe 6 are used for fixing the foundation structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-8, the combined type cold emptying frame of the ocean platform comprises a combined type emptying pipe 1, a combined type vertical pipe 2, a horizontal support 3 and an inclined support 4, wherein the combined type emptying pipe 1 and the combined type vertical pipe 2 are both vertically arranged and are arranged in parallel, and the combined type emptying pipe 1 and the combined type vertical pipe 2 are fixedly connected with each other through the horizontal support 3 and the inclined support 4 respectively.

The combined type emptying pipe 1 comprises a cold emptying pipe 1-1, an equal-diameter tee joint 1-2, a long-radius elbow 1-6, a straight pipe 1-7 and a first rib plate flange plate 1-8, the bottom end of the cold emptying pipe 1-1 is fixedly connected with the base through a first reinforcing rib plate 1-5, the top end of the straight pipe is connected with a straight pipe 1-7 through a long-radius elbow 1-6, the straight pipe 1-7 is parallel to the ground, the cold emptying pipe 1-1 is provided with an equal-diameter tee joint 1-2, the bottom side of the equal-diameter tee joint 1-2 is provided with a first circular rib plate 1-4 connected with the cold emptying pipe 1-1, the first circular rib plate 1-4 is positioned between the equal-diameter tee joint 1-2 and the cold blow-down pipe 1-1, and is beneficial to welding the combined blow-down pipe 1.

The cold blow-down pipe 1-1 between the equal-diameter tee joint 1-2 and the first reinforcing rib plate 1-5 is provided with a first rib plate flange plate 1-8, and the first rib plate flange plate 1-8 is connected with the cold blow-down pipe 1-1 through bolts, so that the combined type cold blow-down pipe 1-1 is convenient to disassemble and assemble.

The number of the first reinforcing rib plates 1-5 is 4, and the first reinforcing rib plates are uniformly distributed around the bottom of the cold emptying pipe 1-1 respectively.

The length of the straight pipe 1-7 is 4 times of the pipe inner diameter of the cold emptying pipe 1-1, the outlet end face of the straight pipe 1-7 forms an included angle of 45 degrees with the vertical direction, and the outlet end face faces the lower side.

And a flange 1-3 is arranged on the side opening of the equal-diameter tee joint 1-2.

The cold blow-down pipe 1-1 is a steel pipe, the height and the inner diameter are determined according to process calculation, the thickness of the wall body of the constant-diameter tee joint 1-2, the flange 1-3, the long-radius elbow 1-6 and the straight pipe 1-7 is matched with that of the cold blow-down pipe 1-1, the manufacturing material is carbon steel, and the inner diameter of the cold blow-down pipe is consistent with that of the cold blow-down pipe 1-1.

The number of the combined type emptying pipes 1 is 1.

The combined vertical pipe 2 comprises a vertical pipe 2-1, a second reinforcing rib plate 2-3, a second circular rib plate 2-4 and a second rib plate flange 2-2, wherein the vertical pipe 2-1 and the cold emptying pipe 1-1 are respectively connected and fixed through a horizontal support 3 and an inclined support 4, and the specifications of the horizontal support 3 and the inclined support 4 are consistent; the second circular rib plate 2-4 is positioned at the top end of the vertical pipe 2-1, covers the pipe diameter of the vertical pipe 2-1 and prevents rain and snow from entering the pipe; the number of the second reinforcing rib plates 2-3 is 4, and the second reinforcing rib plates are uniformly distributed around the bottom of the vertical pipe 2-1 and used for reinforcing the connection between the vertical pipe 2-1 and the foundation.

The vertical pipe 2-1 is provided with a second rib plate flange 2-2, and the second rib plate flange 2-2 is connected with the vertical pipe 2-1 through bolts, so that the combined vertical pipe 2 is convenient to disassemble and assemble.

The number of the combined type stand pipes 2 is 2.

The utility model discloses a combination formula blow-down pipe 1's height setting confirms the back, according to the main wind direction of cold unloading frame arrangement and platform environment, adjusts long radius elbow 1-6 and straight tube 1-7 orientation downwind direction, is favorable to gaseous diffusion.

Combination formula blow-down pipe 1 be equipped with 1, combination formula riser 2 is equipped with 2, combination formula blow-down pipe 1 and combination formula riser 2 become equilateral triangle and arrange, combination formula blow-down pipe 1 and combination formula riser 2 between be connected through level brace 3 and bracing 4, the material steel pipe of unified specification is chooseed for use to level brace 3 and bracing 4, improves the utilization ratio of tubular product.

The first rib plate flange plate 1-8 of the combined type emptying pipe 1, the second rib plate flange plate 2-2 and the flange 1-3 of the combined type vertical pipe 2 are all provided with bolts for connection, and the cold emptying frame is convenient to disassemble and assemble.

The first reinforcing rib plates 1-5 and the second reinforcing rib plates 2-3 are connected with the vertical pipe fixing foundation structure 6 to play a sufficient reinforcing role.

The flange 1-3 is connected with the block pipeline 5, the orientation of the constant-diameter tee joint 1-2 and the flange 1-3 is adjusted according to the arrangement of the block pipeline 5, the block pipeline 5 is connected with the pipeline of the cold emptying tank, and the combined emptying pipe 1 directly discharges overpressure gas of the pipeline of the cold emptying tank into the atmosphere through the block pipeline 5 and the cold emptying pipe 1-1 so as to achieve the effect of timely pressure relief.

The above disclosure is only one specific embodiment of the present application, but the present application is not limited thereto, and any modification and variation made by those skilled in the art without departing from the technical principle of the present application should fall within the protection scope of the present application.

Claims (10)

1. The utility model provides a cold unloading frame of platform combination formula which characterized in that: including combination formula blow-down pipe (1), combination formula riser (2), horizontal brace (3) and bracing (4), combination formula blow-down pipe (1) and combination formula riser (2) be erect and mutual parallel arrangement, combination formula blow-down pipe (1) and combination formula riser (2) between prop through horizontal brace (3) and bracing (4) interconnect respectively and fix.

2. The combined cold blow down rack of claim 1, further comprising: the combined type emptying pipe (1) comprises a cold emptying pipe (1-1), an equal-diameter tee joint (1-2), a long-radius elbow (1-6), a straight pipe (1-7) and a first rib plate flange plate (1-8), wherein the bottom end of the cold emptying pipe (1-1) is fixedly connected with a base through a first reinforcing rib plate (1-5), and the top end of the cold emptying pipe is connected with the straight pipe (1-7) through the long-radius elbow (1-6).

3. The combined cold blow down rack of claim 2, wherein: the cold emptying pipe (1-1) is provided with an equal-diameter tee joint (1-2), the bottom side of the equal-diameter tee joint (1-2) is provided with a first circular rib plate (1-4) connected with the cold emptying pipe (1-1), and a flange (1-3) is arranged on a side opening of the equal-diameter tee joint (1-2).

4. The combined cold blow down rack of claim 3, wherein: the cold blow-down pipe (1-1) between the equal-diameter tee (1-2) and the first reinforcing rib plates (1-5) is provided with first rib plate flange plates (1-8), and the first rib plate flange plates (1-8) are connected with the cold blow-down pipe (1-1) through bolts.

5. The combined cold blow down rack of claim 2, wherein: the number of the first reinforcing rib plates (1-5) is 4, and the first reinforcing rib plates are uniformly distributed around the bottom of the cold emptying pipe (1-1) respectively.

6. The combined cold blow down rack of claim 2, wherein: the length of the straight pipe (1-7) is 4 times of the pipe inner diameter of the cold emptying pipe (1-1), the outlet end face of the straight pipe (1-7) forms an included angle of 45 degrees with the vertical direction, and the outlet end face faces the lower side.

7. An offshore platform combination cold blow down rack according to claim 1 or 2, characterised in that: the number of the combined emptying pipes (1) is 1.

8. The combined cold blow down rack of claim 1, further comprising: the combined type vertical pipe (2) comprises a vertical pipe (2-1), second reinforcing rib plates (2-3), second circular rib plates (2-4) and second rib plate flange plates (2-2), wherein the second circular rib plates (2-4) are located at the top end of the vertical pipe (2-1), the number of the second reinforcing rib plates (2-3) is 4, and the second reinforcing rib plates are uniformly distributed around the bottom of the vertical pipe (2-1).

9. The combined cold blow down rack of claim 8, wherein: the vertical pipe (2-1) is provided with a second rib plate flange plate (2-2), and the second rib plate flange plate (2-2) is connected with the vertical pipe (2-1) through bolts.

10. An offshore platform combination cold flare according to claim 1, 8 or 9, wherein: the number of the combined type stand pipes (2) is 2.

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