A fire dam and blowdown pit

Abstract

This utility model relates to the field of well site blowout ignition technology, specifically to a firebreak wall and its blowout pool. The firebreak wall includes a main body and a fire-resistant wall. By using arc-shaped firebricks to construct the fire-resistant wall, when subjected to flame backdraft, the pressure from the backdraft is transmitted along the arc of the arc to the main body, reducing the impact on the lining material between the firebricks. This makes the fire-resistant wall less prone to deformation under flame backdraft, increasing its overall service life. Simultaneously, a strip-shaped cavity is formed between the fire-resistant wall and the main body, acting as a buffer and facilitating heat transfer through an air layer. This helps reduce the probability of deformation and damage during repeated use, further increasing the firebreak wall's service life and reducing maintenance and construction costs. Similarly, a blowout pool using the aforementioned firebreak wall has an extended overall service life and reduced maintenance and construction costs.

Description

Technical Field

[0001] This utility model relates to the field of well site blowout ignition technology, specifically to a fire barrier and its blowout pool. Background Technology

[0002] During the natural gas drilling and testing process, venting and ignition are required. Venting and ignition are generally carried out in a venting pool, which serves to block the flame and collect the backflow fluid. Traditionally, venting pools are constructed with refractory bricks to build the pool walls, with the spaces between the refractory bricks filled with castable mortar to form a vertical fire wall structure. Under prolonged, high-intensity, and repeated rapid temperature changes, the fire wall is prone to problems such as refractory layer detachment, cracking, collapse, and damage to the anti-seepage layer. Its service life is limited, and it needs to be demolished and the pool pit and fire wall rebuilt, resulting in high costs for repeated construction.

[0003] Chinese patent CN221942405U discloses a detachable spouting pool. By installing columns on the outer wall of the pool body to abut against the inner wall of the pool pit, the pool body and the columns are detachably connected. This allows for the removal of the connection between the pool body and the columns when the spouting pool needs to be reconstructed, enabling separate construction of the pool body. This reduces the amount of secondary backfilling and leveling work required for the pool pit, lowers the corresponding construction costs, and increases the distance between the pool body and the pool pit, reducing the impact of the spouting process on the pool pit, extending the service life of the pool pit, and thus reducing the corresponding maintenance work and construction costs of the pool pit.

[0004] However, how to further improve the service life of the blowout pool and reduce the corresponding maintenance and construction costs of the firewall remains a goal that researchers continue to optimize. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing fire barriers in the prior art, such as easy deformation and damage during repeated use, short service life, and high cost of repeated construction, and to provide a fire barrier and its fire barrier.

[0006] In a first aspect, the present invention provides a firewall, comprising: The retaining wall body has several columns connected to one side and several abutment parts on the wall surface of the other side of the retaining wall body; The fire-resistant wall comprises several rows of fire-resistant bricks, one side of which is a concave arc surface and the other side is a convex arc surface. The two lateral sides of the concave arc surface abut against the abutting part, forming several rows of strip-shaped cavities between the fire-resistant wall and the retaining wall body.

[0007] This utility model discloses a fire barrier wall. By using arc-shaped refractory bricks to construct the fire barrier wall, the pressure from the flame jet can be transmitted to the main body of the fire barrier wall along the arc of the arc structure when the fire barrier wall is subjected to flame jetting. This reduces the impact on the masonry material between the refractory bricks, making the fire barrier wall less prone to deformation under flame jetting and improving the overall service life of the fire barrier wall. At the same time, the strip-shaped cavity formed between the fire barrier wall and the main body of the fire barrier wall acts as a buffer and realizes the transfer of heat through an air layer. This helps to reduce the probability of deformation and damage of the fire barrier wall during repeated use, further improving the service life of the fire barrier wall and reducing the corresponding maintenance and construction work and costs.

[0008] Preferably, the strip-shaped cavity is filled with granular aggregate. The granular aggregate, in a loose state, bears and disperses the spray pressure on the fireproof wall, further improving the buffering effect on the fireproof wall.

[0009] Preferably, the granular aggregate comprises medium-coarse sand. Medium-coarse sand is widely available, which helps reduce the construction cost of the blowdown pool.

[0010] Preferably, the arc-shaped concave surface is provided with a coating layer to further improve the fire resistance of the fire-resistant wall and extend its service life.

[0011] Preferably, the abutting portion includes a protruding platform structure, and the refractory brick has abutting planes on both sides of the arc-shaped concave surface, the abutting planes contacting the platform structure surface. This ensures surface contact between the refractory brick and the retaining wall body, resulting in stable contact and guaranteeing the structural stability of the strip cavity, thereby improving the overall structural stability of the fireproof wall and extending its service life.

[0012] Preferably, the abutting portion includes a protruding pointed structure, which is fitted onto one or both sides of the arc-shaped concave surface. The pointed structure helps to restrict the lateral movement of each refractory brick, fixing the relative position of the refractory brick and the retaining wall body, thus reducing the probability of deformation and damage to the refractory wall.

[0013] In a second aspect, the present invention provides a blowout pool, including a fire barrier as described above, wherein side walls are provided on both sides of the fire barrier, and the fire barrier and the side walls are combined to form a blowout space, wherein a notch is provided at the end of the side wall near the fire barrier, and the fire-resistant wall is embedded in the notch.

[0014] The present invention relates to a blowout pool. By adopting the aforementioned fireproof wall, the overall service life is extended, and the corresponding maintenance and construction work and costs are reduced. At the same time, the fireproof wall is embedded in the notch groove of the side wall, and is constrained by the stability of the side wall, which improves the overall stability of the blowout pool. It also helps the fireproof wall to transmit the spray pressure to the side wall in the lateral direction, which can further prevent the fireproof wall from deforming and being damaged.

[0015] Preferably, a gap space is formed between the transverse end face of the fire-resistant wall and the notch groove, and a buffer structure is provided within the gap space. This buffer structure acts as a buffer for the transverse movement of the fire-resistant wall, and in conjunction with the granular aggregate within the strip-shaped cavity, it can buffer the deformation of the fire-resistant wall in different directions, effectively reducing the probability of deformation and damage to the fire-resistant wall due to rapid temperature changes.

[0016] Preferably, the buffer structure includes a fine sand filling layer.

[0017] Preferably, the retaining wall body has a limiting block on the side surface near the side wall, and the side wall has a limiting groove, with the limiting block engaging with the limiting groove. This further improves the contact stability between the fire barrier and the side wall.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a fire barrier wall. By using refractory bricks with an arc-shaped structure to build the fire barrier wall, when the fire barrier wall is subjected to flame spray, the spray pressure can be transmitted to the main body of the fire barrier wall along the arc direction of the arc structure, reducing the impact on the masonry material between the refractory bricks, making the fire barrier wall less prone to deformation under the action of flame spray, and improving the overall service life of the fire barrier wall. 2. This utility model provides a fire barrier wall, which forms a strip cavity between the fire-resistant wall and the main body of the fire barrier wall. The strip cavity acts as a buffer and enables heat transfer through the air layer. This helps to reduce the probability of deformation and damage to the fire-resistant wall during repeated use, further improves the service life of the fire barrier wall, and reduces the corresponding maintenance and construction work and costs of the fire barrier wall. 3. This utility model provides a blowout pool. By adopting the above-mentioned fire barrier, the overall service life is extended, and the corresponding maintenance and construction work and construction costs are reduced. 4. This utility model provides a blowout pool. By embedding the fire-resistant wall into the notch groove of the side wall, the overall stability of the blowout pool is improved by the stability constraint of the side wall. It also helps the fire wall to transmit the spray pressure to the side wall in the lateral direction, which can further prevent the fire wall from deforming and being damaged. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the usage state of a fire barrier in Example 1.

[0020] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0021] Figure 3 This is a top view of a firewall in use according to Embodiment 1.

[0022] Figure 4 for Figure 3A magnified structural diagram of section B in the middle.

[0023] Figure 5 This is a schematic diagram of the refractory brick described in Example 1.

[0024] Figure 6 This is a top view of the refractory brick described in Example 1.

[0025] Figure 7 This is a schematic diagram of the usage state of a blowhole in Example 2.

[0026] Marked in the image: 1-Main body of retaining wall, 11-Column, 12-Abutting part, 121-Platform structure, 122-Sharp corner structure, 13-Limiting block, 2-Fireproof wall, 3-Refractory brick, 31-Curved concave surface, 32-Curved convex surface, 33-Coating layer, 34-Mating surface, 4-Strip-shaped cavity, 5- Granular aggregate, 6-Side wall, 61-Notch groove, 62-Limiting groove 7-Spray space, 8-Gap space, 9-Buffer structure. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0028] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0030] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0031] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0032] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0033] Example 1 like Figures 1-6 As shown, a fire barrier includes a fire barrier body 1 and a fire-resistant wall 2. The fire barrier body 1 is connected to several columns 11 on one side, and the wall surface on the other side of the fire barrier body 1 is provided with several abutment parts 12. The fire-resistant wall 2 includes several rows of fire-resistant bricks 3. One side of the fire-resistant brick 3 is provided with an arc-shaped concave surface 31 and the other side is provided with an arc-shaped convex surface 32. The two lateral sides of the arc-shaped concave surface 31 abut against the abutment parts 12, forming several rows of strip-shaped cavities 4 between the fire-resistant wall 2 and the fire barrier body 1.

[0034] In one or more embodiments, the retaining wall body 1 can be a concrete wall, the column 11 on one side of the retaining wall body 1 can be a vertically arranged grid column, and the refractory brick 3 can be a conventional refractory brick 3 or a corundum brick.

[0035] In an optional embodiment, the fire wall 2 can be constructed by combining refractory bricks 3 with castable. The refractory bricks 3 need to withstand a temperature of 1580-1770℃, and the castable needs to withstand a temperature of around 1200℃. Preferably, corundum bricks can be used in combination with corundum castable or mullite castable to form the fire wall 2. This ensures that the refractory bricks 3 and the castable have similar fire resistance temperatures and undergo similar deformation under the impact of high and low temperature airflows. This can effectively avoid desulfurization deformation damage caused by the differences in thermal shock resistance, structural detachment resistance, and thermal shock resistance between the refractory bricks 3 and the castable.

[0036] In one or more embodiments, the arc-shaped refractory bricks 3 are laid in rows, with adjacent rows of refractory bricks 3 staggered, so that the fire wall 2 and the main body of the retaining wall 1 form independent multi-row strip cavities 4, and the top of each strip cavity 4 is connected. During use, buffer material can be filled in according to the actual situation to buffer the deformation of the fire wall 2. Hot water or boiling water can also be poured in according to the actual situation to preheat the fire wall 2 in advance, so as to reduce the rate of temperature rise of the fire wall 2 after the ignition, thereby reducing the probability of the fire wall 2 cracking due to sudden temperature change.

[0037] In an optional embodiment, the strip cavity 4 may also be filled with granular aggregate 5.

[0038] In an optional embodiment, the granular aggregate 5 can be medium-coarse sand, which can be sand with a fineness modulus of 1.6-3.7. It is widely available, which helps to reduce the construction cost of the blowout pool. It also helps to bear and disperse the blowout pressure on the fire wall 2 through the loose state of the medium-coarse sand, thereby improving the buffering effect on the fire wall 2 and reducing the probability of deformation and damage to the fire wall 2.

[0039] In one or more embodiments, the arc-shaped concave surface 31 is provided with a coating layer 33 to further improve the fire resistance of the fire-resistant wall 2 and extend its service life.

[0040] In one or more embodiments, the abutment portion 12 includes a protruding platform structure 121, and the refractory brick 3 has abutment planes 34 on both sides of the arc-shaped concave surface 31, which are in surface contact with the platform structure 121. This ensures that the refractory brick 3 and the retaining wall body 1 form a surface contact, which is stable and ensures the structural stability of the strip cavity 4, thereby improving the overall structural stability of the fire wall 2 and extending its service life.

[0041] In an optional embodiment, the platform structure 121 may be a structural part that is vertically through and partially protrudes from the retaining wall body 1. The platform structure 121 is integrally formed with the retaining wall body 1 to provide a contact surface for the stable contact of the refractory brick 3. The contact plane 34 of the refractory brick 3 may be a structural part formed on the two horizontal edges of the refractory brick 3. The contact plane 34 and the planar structure form a surface contact parallel to the retaining wall body 1.

[0042] In one or more embodiments, the abutment portion 12 includes a protruding pointed structure 122, which is fitted against one or both sides of the arc-shaped concave surface 31 in the lateral direction. The pointed structure 122 helps to restrict the lateral movement of each refractory brick 3, thereby fixing the relative position of the refractory brick 3 and the retaining wall body 1, and reducing the probability of deformation and damage to the refractory wall 2.

[0043] In optional implementations, such as Figures 3-4 As shown, most of the refractory bricks 3 of the fire wall 2 are in surface contact with the main body of the retaining wall 1 through the platform structure 121. Two rows of refractory bricks 3 located on the transverse edge of the fire wall 2 abut against the platform structure 121 on one side, and are limited by the sharp corner structure 122 on the other side, so that the relative position of the fire wall 2 and the main body of the retaining wall is limited by the sharp corner structure 122.

[0044] This embodiment of a fire barrier uses arc-shaped refractory bricks 3 to construct the fire barrier 2. When subjected to flame jetting, the jetting pressure is transmitted to the main body 1 along the arc of the arc structure, reducing the impact on the lining material between the refractory bricks 3. This makes the fire barrier 2 less prone to deformation under flame jetting, thus improving its overall service life. Simultaneously, a strip-shaped cavity 4 is formed between the fire barrier 2 and the main body 1, acting as a buffer and facilitating heat transfer through an air layer. This further reduces the probability of deformation and damage to the fire barrier 2 during repeated use. During use, granular aggregate 5 can be filled into the strip-shaped cavity 4 for buffering, and boiling or hot water can be injected for preheating, maximizing the service life of the fire barrier and reducing the corresponding maintenance and construction costs.

[0045] Example 2 like Figures 1-6 As shown, a blowout pool includes a fire wall as described in Embodiment 1. Side walls 6 are provided on both sides of the fire wall. The fire wall and the side walls 6 are combined to form a blowout space 7. The end of the side wall 6 near the fire wall is provided with a notch 61, and a fire-resistant wall 2 is embedded in the notch 61.

[0046] In one or more embodiments, the notch 61 can be a notch structure provided at the end of the side wall 6, penetrating the side wall and end wall of the side wall 6. The dimension of the notch 61 in the wall surface direction of the side wall 6 is similar to the thickness of the fire-resistant wall 2. The dimension of the notch 61 in the thickness direction of the side wall 6 is set according to the actual situation, so that the fire-resistant wall 2 can be stably nested with the side wall 6, limiting the relative position of the side wall 6 and the fire barrier.

[0047] In one or more embodiments, a gap space 8 can be formed between the transverse end face of the fire wall 2 and the notch 61, and a buffer structure 9 is provided in the gap space 8. The buffer structure 9 buffers the fire wall laterally, and in conjunction with the granular aggregate 5 in the strip cavity 4, it can realize the deformation buffering of the fire wall in different directions.

[0048] In an optional embodiment, the buffer structure 9 may include a fine sand filling layer, wherein the fine sand may be sand with a particle size between 0.125 mm and 0.25 mm.

[0049] In one or more embodiments, a limiting block 13 may be provided on the wall surface of the retaining wall body 1 near the side wall 6, and a limiting groove 62 may be provided on the side wall 6, with the limiting block 13 fitting into the limiting groove 62. This further improves the contact stability between the fire wall and the side wall 6, and enables deformation control of the fire-resistant wall 2 from different directions.

[0050] This embodiment of a blowout pool, by adopting a fire barrier wall as described in Embodiment 1, extends the overall service life and reduces the corresponding maintenance and construction costs. Simultaneously, the fire wall 2 is embedded in the notch 61 of the side wall 6, and the stability of the side wall 6 restricts its movement, improving the overall stability of the blowout pool. This also facilitates the transmission of the blowout pressure to the side wall 6 in the lateral direction, further preventing deformation and damage to the fire barrier wall. During use, a gap space 8 can be formed between the fire wall 2 and the side wall 6, filled with a buffer structure 9. This, combined with the strip-shaped cavity 4 formed between the arc-shaped refractory brick 3 and the main body 1 of the fire barrier wall, and the granular aggregate 5 filled within the strip-shaped cavity 4, buffers the deformation of the fire wall 2 in both directions, optimizing the deformation of the fire wall 2 and effectively reducing the probability of deformation and damage to the fire barrier wall due to rapid temperature changes.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A firewall, characterized in that, include: The retaining wall body (1) has several columns (11) connected to one side, and several abutment parts (12) are provided on the wall surface of the other side of the retaining wall body (1). Fire-resistant wall (2), the fire-resistant wall (2) includes several rows of fire-resistant bricks (3), one side of the fire-resistant brick (3) is provided with an arc-shaped concave surface (31) and the other side is provided with an arc-shaped convex surface (32), the two sides of the arc-shaped concave surface (31) abut against the abutting part (12), forming several rows of strip-shaped cavities (4) between the fire-resistant wall (2) and the retaining wall body (1).

2. A firewall according to claim 1, characterized in that, The strip-shaped cavity (4) is filled with granular aggregate (5).

3. A firewall according to claim 2, characterized in that, The granular aggregate (5) includes medium-coarse sand.

4. A firewall according to claim 1, characterized in that, The arc-shaped concave surface (31) is provided with a coating layer (33).

5. A firewall according to claim 1, characterized in that, The abutting part (12) includes a protruding platform structure (121), and the refractory brick (3) has abutting planes (34) on both sides of the arc-shaped concave surface (31), and the abutting planes (34) are in contact with the platform structure (121).

6. A firewall according to claim 5, characterized in that, The abutting part (12) includes a protruding sharp corner structure (122), which is fitted to one or both sides of the arc-shaped concave surface (31).

7. A spouting pool, characterized in that, The fire barrier includes a fire wall as described in any one of claims 1-6, wherein side walls (6) are provided on both sides of the fire wall, and the fire wall and the side walls (6) are combined to form a spray space (7), and the side walls (6) are provided with a notch (61) at the end near the fire wall, and the fire-resistant wall (2) is embedded in the notch (61).

8. A blowhole pool according to claim 7, characterized in that, A gap space (8) is formed between the transverse end face of the fire-resistant wall (2) and the notch (61), and a buffer structure (9) is provided in the gap space (8).

9. A blowhole pool according to claim 8, characterized in that, The buffer structure (9) includes a fine sand filling layer.

10. A blowhole pool according to claim 7, characterized in that, The retaining wall body (1) has a limiting block (13) on the wall surface near the side wall (6), and the side wall (6) has a limiting groove (62), and the limiting block (13) fits into the limiting groove (62).

Images