Assembled double-wall structure combustion pool capable of reducing pool wall temperature and installation method thereof

Abstract

The application relates to the technical field, and particularly discloses an assembled double-wall structure combustion pool capable of reducing the temperature of a pool wall and a mounting method thereof; the assembled double-wall structure combustion pool comprises a plurality of corner columns, a plurality of standard columns, and wall body plates located between adjacent corner columns and standard columns and between adjacent standard columns and enclosing a cavity; the wall body plates comprise outer pool plates and inner pool plates; a heat dissipation cavity is formed between the outer pool plates and the inner pool plates; the bottom surface of the outer pool plate and the bottom surface of the inner pool plate are not in the same plane, and a gap is formed between the bottom surface of the outer pool plate and the ground; the gap is 8-12 cm. The mounting method is disclosed, the application improves the construction convenience, use safety and environmental compatibility of the combustion pool, and solves the problems of long construction period, large workload, high demolition difficulty and maintenance difficulty of the traditional combustion pool.

Description

Technical Field

[0001] This invention relates to the field of drilling engineering technology, and more specifically, to a prefabricated double-wall structure combustion tank that can reduce the temperature of the tank walls and its installation method. Background Technology

[0002] Natural gas, as the cleanest fossil fuel and an important industrial raw material, is being exploited and utilized on a large scale in my country, especially in the western regions. The Sichuan-Chongqing region has abundant natural gas reserves and enormous exploitation potential. In natural gas exploration and development, oil and gas testing requires manually opening the wellhead to allow controlled release of oil and gas—a process known as venting. Natural gas venting is an indispensable part of exploration and development. To avoid the environmental impact of natural gas combustion during venting, the "Production Safety Law" and the "Technical Specification for Well Control in Petroleum and Natural Gas Drilling" (GB / T31033-2014) stipulate that venting combustion must be confined within a semi-enclosed combustion pool.

[0003] The constructed combustion pits mostly employ a "shale brick masonry + refractory mortar plastering" method. This type of combustion pit presents the following problems during production and operation that urgently need to be addressed: 1) Poor material transportation conditions, large transportation volume, extensive masonry work, and long construction period. 2) Low utilization rate of construction materials, large amount of construction debris after blowout testing that is difficult to dismantle, and significant challenges in subsequent land reclamation. 3) Damage to the combustion pit during blowout testing necessitates a long and difficult secondary repair process.

[0004] For example, in a certain project, the dimensions of the combustion tank before drilling are 13m * 7m * 3.5m (length * width * height, external dimensions), the foundation depth is 0.9m, the bottom thickness is 1.0m, the top thickness is 0.6m, and the brickwork volume for the wall and foundation is 133m³. 3 Weighing approximately 240 tons and consisting of 68,100 units, the project involves significant transportation and construction work, resulting in a long construction period. The utilization rate of construction materials is low. The combustion pool is constructed using mortar-laid brick masonry, which must be dismantled after the blowout test, requiring land reclamation. Dismantling the masonry is difficult and will generate substantial construction waste, making subsequent land reclamation challenging. Secondary repairs to the combustion pool damaged during the blowout test are time-consuming and difficult. Multiple combustions during the test can cause pool damage and even wall melting, necessitating timely secondary repairs to meet subsequent process requirements. Delayed repairs will prevent the timely discharge of acidizing backflow fluid, leading to reservoir contamination and severely impacting production capacity. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a prefabricated double-wall structure combustion tank and its installation method that can reduce the temperature of the tank wall, thereby improving the convenience of construction, safety of use, and environmental compatibility of the combustion tank, and solving the problems of long construction period, large workload, difficult dismantling, and difficult maintenance of traditional combustion tanks.

[0006] The solution adopted by this invention to solve the technical problem is:

[0007] on the one hand:

[0008] The present invention provides a prefabricated double-wall structure combustion tank that can reduce the temperature of the tank wall, including several sets of corner columns, several sets of standard columns, and wall panels located between adjacent corner columns and standard columns, and between adjacent standard columns, forming a chamber.

[0009] The wall panel includes an outer pool panel and an inner pool panel; a heat dissipation cavity is formed between the outer pool panel and the inner pool panel; the bottom surface of the outer pool panel and the bottom surface of the inner pool panel are not on the same plane, and a gap is formed between the bottom surface of the outer pool panel and the ground; the gap is 8-12cm.

[0010] In some possible implementations,

[0011] The outer pool panel has the same structure as the inner pool panel, including multiple sets of wall panels arranged vertically in sequence; the wall panel includes a panel body, a protrusion on the top of the panel body, and a groove on the bottom of the panel body; mounting protrusions are provided at the bottom of the corner columns and standard columns, and mounting grooves are provided at the top of the corner columns and standard columns.

[0012] In some possible implementations,

[0013] Multiple sets of transverse through holes are provided in the plate body; the multiple sets of transverse through holes are arranged horizontally.

[0014] In some possible implementations,

[0015] The standard column includes a column body and a slot located on the side of the column body near the wall panel.

[0016] In some possible implementations,

[0017] The first set of slots consists of two sets arranged symmetrically; each set of slots includes an outer slot that is installed in conjunction with the outer pool plate, and an inner slot that is installed in conjunction with the inner pool plate.

[0018] In some possible implementations,

[0019] The column body is provided with a through hole in the vertical direction. In each set of slots, a through hole is also provided in the vertical direction between the outer slot and the inner slot. On the side of the column body near the heat dissipation cavity, a connecting hole is provided that communicates with the through hole and the heat dissipation cavity respectively.

[0020] In some possible implementations,

[0021] The corner column includes a column body and a connecting slot provided on the side of the column body near the wall panel. The connecting slot is in two sets, each set of connecting slots including an outer slot two that is used in conjunction with the outer pool panel and an inner slot two that is used in conjunction with the inner pool panel.

[0022] In some possible implementations,

[0023] The column is provided with a through hole two along the vertical direction, and a through hole two is also provided vertically on the column. The through hole two is located between the outer slot two and the inner slot two in each set of connecting slots. A connecting hole two is provided on the side of the column near the heat dissipation cavity, which is connected to the through hole two and the heat dissipation cavity respectively.

[0024] In some possible implementations,

[0025] The prefabricated double-walled combustion tank has a rectangular structure; there are four sets of corner columns and multiple sets of standard columns, which are located between two adjacent sets of corner columns.

[0026] An installation method for a prefabricated double-wall combustion tank that can reduce the temperature of the tank walls.

[0027] Step S1: Foundation construction;

[0028] Step S2: Connect the corner column and standard column to the mounting groove provided in the foundation by means of the mounting protrusion at the bottom of the column;

[0029] Step S3: Based on the height of the prefabricated double-wall structure combustion tank, install the corner columns and standard columns by matching the installation protrusions with the installation grooves;

[0030] Step S4: Assemble the inner and outer pool plates;

[0031] Step S41: Fix both ends of the inner pool plate in the corresponding inner slot one or inner slot two, and engage them with the groove at the bottom of the previous inner pool plate through the protrusion at the top of the next inner pool plate.

[0032] Step S42: Adjust the gap between the outer pool panel near the ground and the ground;

[0033] Step S43: Fix both ends of the outer pool plate in the corresponding outer slot one or outer slot two, and engage them with the groove at the bottom of the previous outer pool plate through the protrusion at the top of the next outer pool plate.

[0034] Step S44: Repeat steps S41-S43 to complete the installation.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] This invention reduces on-site wet work and adverse environmental impact through prefabricated construction. After use, it can be recycled and reused, greatly reducing construction costs.

[0037] This invention forms a heat dissipation cavity by connecting the outer pool plate and the inner pool plate. Cold air enters the heat dissipation cavity from the gap between the bottom of the outer pool plate and the ground to exchange heat with the wall panels, corner columns, and standard columns. This effectively reduces the temperature of the fire-facing surfaces of the inner pool plate, corner columns, and standard columns, reduces heat accumulation, and improves the safety performance of the combustion pool.

[0038] This invention has a simple structure and is highly practical. Attached Figure Description

[0039] Figure 1 This is a top view of the present invention;

[0040] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0041] Figure 3 This is a top view of the standard column in this invention;

[0042] Figure 4 This is a side view of the standard column in this invention;

[0043] Figure 5 This is a top view of the corner column in this invention;

[0044] Figure 6 This is a side view of the corner post in this invention;

[0045] Figure 7 This is a side view of the outer pool plate or the inner pool plate in this invention;

[0046] Figure 8 This is a side view of the present invention;

[0047] Among them: 1. Corner column; 10. Through hole two; 11. Column body; 12. Through hole two; 13. External slot two; 14. Internal slot two; 15. Connecting hole two; 2. Wall panel; 21. External pool panel; 22. Internal pool panel; 23. Heat dissipation cavity; 211. Wall panel; 212. Horizontal through hole; 213. Protrusion; 214. Groove; 3. Standard column; 30. Through hole one; 31. Column body; 32. External slot one; 33. Internal slot one; 34. Through hole one; 35. Connecting hole one; 10. Cavity. Detailed Implementation

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] The present invention will now be described in detail.

[0050] like Figures 1-7 As shown:

[0051] on the one hand:

[0052] The present invention provides a prefabricated double-wall structure combustion tank that can reduce the temperature of the tank wall, including several sets of corner columns 1, several sets of standard columns 3, and wall panels 2 located between adjacent corner columns 1 and standard columns 3 and between adjacent standard columns 3 to form a chamber.

[0053] Corner column 1 and standard column 3 are installed on the foundation in a prefabricated manner; wall panel 2 is connected and fixed to corner column 1 and standard column 3 in a prefabricated manner.

[0054] The wall panel 2 includes an outer pool panel 21 and an inner pool panel 22; a heat dissipation cavity 23 is formed between the outer pool panel 21 and the inner pool panel 22; the bottom surface of the outer pool panel 21 and the bottom surface of the inner pool panel 22 are not on the same plane, and a gap D is formed between the bottom surface of the outer pool panel 21 and the ground; the gap D is 8-12cm.

[0055] Preferably, the width of the heat dissipation cavity 23 formed between the outer pool plate 21 and the inner pool plate 22 is A, 150mm≥A≥120mm.

[0056] In some possible implementations,

[0057] The outer pool plate 21 has the same structure as the inner pool plate 22, including multiple sets of wall plates 211 arranged vertically in sequence; the wall plate 211 includes a plate body, a protrusion 213 provided on the top of the plate body, and a groove 214 provided on the bottom of the plate body; mounting protrusions are provided at the bottom of the corner column 1 and the standard column 3, and mounting grooves are provided at the top of the corner column 1 and the standard column 3.

[0058] The protrusions at the bottom of corner post 1 and standard post 3 can cooperate with the mounting grooves set on the foundation to realize the installation of corner post 1 and standard post 3; the mounting grooves at the top of a set of corner posts 1 or standard post 3 can also cooperate with the mounting protrusions at the bottom of another set of adjacent corner posts 1 or standard post 3 to realize the connection between corner posts 1 or standard posts 3.

[0059] In some possible implementations, in order to effectively reduce the weight of the outer pool plate 21 or the inner pool plate 22;

[0060] Multiple sets of transverse through holes 212 are provided in the plate body; the multiple sets of transverse through holes 212 are arranged horizontally.

[0061] In some possible implementations, in order to effectively achieve the connection between the standard column 3 and the wall panel 2;

[0062] The standard column 3 includes a column body 31 and a slot 1 set on the side of the column body 31 near the wall panel 2.

[0063] In some possible implementations, in order to effectively achieve the connection between the standard column 3 and the outer pool plate 21 and the inner pool plate 22;

[0064] The first set of slots consists of two sets arranged symmetrically; each set of slots includes an outer slot 32 that is installed in conjunction with the outer pool plate 21, and an inner slot 33 that is installed in conjunction with the inner pool plate 22.

[0065] In some possible implementations,

[0066] The column body 31 is provided with a through hole 30 along the vertical direction. In each set of slots, a through hole 34 is also provided along the vertical direction between the outer slot and the inner slot. A connecting hole 35 is provided on the side of the column body 31 near the heat dissipation cavity 23, which communicates with the through hole 30 and the heat dissipation cavity 23 respectively.

[0067] The cavity 100, the connecting hole 35, and the through hole 30 are connected. Cold air enters the heat dissipation cavity 23 through the gap and flows into the through hole 30 through the connecting hole 35, thereby achieving heat exchange with the column body 31 and reducing the temperature of the standard column 3.

[0068] Preferably, the column body 31 has a rectangular structure, and the through hole 30 is a through hole with a rectangular cross-section, and the two are coaxially arranged;

[0069] In some possible implementations, in order to effectively connect the corner column 1 to the wall panel 2;

[0070] The corner column 1 includes a column body 11 and a connecting slot provided on the side of the column body 11 near the wall panel 2. The connecting slot is in two sets, each set of connecting slots including an outer slot 13 that is used in conjunction with the outer pool panel 21 and an inner slot 14 that is used in conjunction with the inner pool panel 22.

[0071] Outer slot 1 32, outer slot 2 13, inner slot 1 33, and inner slot 2 14 have the same structure and are used for fixing the two ends of the wall panel;

[0072] In some possible implementations,

[0073] The column 11 is provided with a through hole 10 along the vertical direction, and a through hole 12 is also provided vertically on the column 11. The through hole 12 is provided between the outer slot 13 and the inner slot 14 in each set of connecting slots. A connecting hole 15 is provided on the side of the column 11 near the heat dissipation cavity 23, which communicates with the through hole 10 and the heat dissipation cavity 23 respectively.

[0074] The heat dissipation cavity 23, the second connecting hole 15, and the second through hole 10 are connected. Cold air enters the heat dissipation cavity 23 through the gap and flows into the second through hole 10 through the second connecting hole 15, thereby achieving heat exchange for the column 11 and reducing the temperature of the corner column 1.

[0075] During the combustion process, cold air enters the heat dissipation cavity 23 through the gap between the outer pool plate 21 and the ground, accelerating the heat exchange between the cold air and the wall plate 2. This reduces the temperature of the fire-facing surface of the pool plate 22 by about 50°C, reduces heat accumulation in the wall, and improves the safety performance of the combustion pool.

[0076] In this invention, the wall panel 2, corner column 1, and standard column 3 are manufactured in the factory. In the factory, low-density refractory high-alumina castable is used to cast the standard column 3, corner column 1, outer pool panel 21, and inner pool panel 22 using molds. After being calcined and polished in a high-temperature kiln, they are assembled combustion pool components.

[0077] For corner column 1 or standard column 3, weight reduction is achieved by using vertically arranged holes (through hole 1 30, through hole 2 10, through hole 1 34, through hole 2 12); in order to ensure its load-bearing capacity, steel pipes or steel bars can be installed in through hole 1 34 and through hole 2 12 respectively to improve the strength of corner column 1 or standard column 3.

[0078] Standard column 3 is located between the two corner columns 1. Depending on the size requirements of the combustion pool, multiple sets can be used for the installation and fixing of wall panel 211.

[0079] The wall panel 211 includes an outer pool panel 21 and an inner pool panel 22 with the same structure as the outer pool panel 21. The inner pool panel 22 is located inside the combustion pool, and the outer pool panel 21 is located outside the inner pool panel 22, with a heat dissipation cavity 23 formed between the two. During use, the combustion pool is at a high temperature. Cold air enters the heat dissipation cavity 23 through the gap formed between the outer pool panel 21 and the ground or other base surface to exchange the heat absorbed by the inner pool panel 22, reduce the temperature of the inner pool panel 22, and prevent damage to the inner pool panel 22 due to long-term exposure to high temperatures. At the same time, it effectively improves the safety performance of the entire combustion pool.

[0080] Preferably, both the column body 31 and the column body 11 are rectangular structures, and both the first through hole 30 and the second through hole 10 are through holes with rectangular cross sections. The column body 31 and the first through hole 30 are coaxially arranged, and the column body 11 and the second through hole 10 are coaxially arranged.

[0081] In some possible implementations,

[0082] The prefabricated double-walled combustion tank has a rectangular structure; there are four sets of corner columns 1 and multiple sets of standard columns 3, which are located between two adjacent sets of corner columns 1.

[0083] An installation method for a prefabricated double-wall combustion tank that can reduce the temperature of the tank walls.

[0084] Step S1: Foundation construction; The foundation is poured using high-alumina castable, with a depth of 500mm and an installation groove reserved on the top surface of the foundation;

[0085] Step S2: Connect the corner column 1 and the standard column 3 to the mounting grooves provided in the foundation by means of the mounting protrusions at the bottom of the corner column 1 and the standard column 3;

[0086] Step S3: Based on the height of the prefabricated double-wall structure combustion tank, install the corner column 1 and standard column 3 by matching the installation protrusions with the installation grooves;

[0087] Step S4: Assemble the inner pool plate 22 and the outer pool plate 21;

[0088] Step S41: Fix both ends of the inner pool plate 22 in the corresponding inner slot 1 33 or inner slot 2 14, and engage them with the groove 214 at the bottom of the previous inner pool plate 22 by the protrusion 213 at the top of the next inner pool plate 22.

[0089] Step S42: Adjust the gap between the outer pool plate 21 near the ground and the ground;

[0090] Step S43: Fix both ends of the outer pool plate 21 into the corresponding outer slot 1 32 or outer slot 2 13, and engage the protrusion 213 on the top of the next outer pool plate 21 with the groove 214 on the bottom of the previous outer pool plate 21; and make the height of the wall plate 2 3m.

[0091] Step S44: Repeat steps S41-S43 to complete the installation.

[0092] This invention enables the assembly of a combustion tank with dimensions of 12.69m x 5.23m x 3m (length x width x height). The combustion tank is constructed using 728 panel and column modules, with a total weight of approximately 40 tons, reducing transportation and construction workload and shortening the construction period by 50%. All components (corner column 1, standard column 3, and wall panel 211) are detachable and reusable, saving materials, achieving energy conservation and emission reduction, reducing construction waste by 60%, and facilitating land reclamation. The assembled structure improves secondary maintenance efficiency by 30%. Assembled construction reduces on-site wet work by 60%, reducing adverse environmental impact. After amortization, construction costs can be reduced by 15%.

[0093] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A prefabricated double-wall combustion tank capable of reducing the temperature of the tank walls, characterized in that, It includes several sets of corner columns, several sets of standard columns, and wall panels located between adjacent corner columns and standard columns, and between adjacent standard columns, forming a cavity; The wall panel includes an outer pool panel and an inner pool panel; a heat dissipation cavity is formed between the outer pool panel and the inner pool panel; the bottom surface of the outer pool panel and the bottom surface of the inner pool panel are not on the same plane, and a gap is formed between the bottom surface of the outer pool panel and the ground; the gap is 8-12cm. The outer pool panel has the same structure as the inner pool panel, including multiple sets of wall panels arranged vertically in sequence; the wall panel includes a panel body, a protruding strip on the top of the panel body, and a groove on the bottom of the panel body; mounting protrusions are provided at the bottom of the corner columns and standard columns, and mounting grooves are provided at the top of the corner columns and standard columns. The standard column includes a column body and a slot provided on the side of the column body near the wall panel; The first slot is in two sets and is symmetrically arranged; each set of the first slot includes an outer slot that is installed in conjunction with the outer pool plate and an inner slot that is installed in conjunction with the inner pool plate; The column body is provided with a through hole in the vertical direction. In each set of slots, a through hole is also provided in the vertical direction between the outer slot and the inner slot. A connecting hole is provided on the side of the column body near the heat dissipation cavity, which is connected to the through hole and the heat dissipation cavity respectively. The corner column includes a column body and a connecting slot provided on the side of the column body near the wall panel. The connecting slot is in two sets, and each set of connecting slots includes an outer slot two that is used in conjunction with the outer pool panel and an inner slot two that is used in conjunction with the inner pool panel. The column is provided with a through hole two along the vertical direction, and a through hole two is also provided vertically on the column. The through hole two is located between the outer slot two and the inner slot two in each set of connecting slots. A connecting hole two is provided on the side of the column near the heat dissipation cavity, which is connected to the through hole two and the heat dissipation cavity respectively.

2. The prefabricated double-wall structure combustion tank with reduced tank wall temperature according to claim 1 is characterized in that, Multiple sets of transverse through holes are provided in the plate body; the multiple sets of transverse through holes are arranged horizontally.

3. A prefabricated double-wall combustion tank with reduced wall temperature according to any one of claims 1-2, characterized in that, The prefabricated double-walled combustion tank has a rectangular structure; there are four sets of corner columns and multiple sets of standard columns, which are located between two adjacent sets of corner columns.

4. The installation method of a prefabricated double-wall structure combustion tank capable of reducing tank wall temperature according to any one of claims 1-3, characterized in that, Step S1: Foundation construction; Step S2: Connect the corner column and standard column to the mounting groove provided in the foundation by means of the mounting protrusion at the bottom of the column; Step S3: Based on the height of the prefabricated double-wall structure combustion tank, install the corner columns and standard columns by matching the installation protrusions with the installation grooves; Step S4: Assemble the inner and outer pool plates; Step S41: Fix both ends of the inner pool plate in the corresponding inner slot one or inner slot two, and engage them with the groove at the bottom of the previous inner pool plate through the protrusion at the top of the next inner pool plate. Step S42: Adjust the gap between the outer pool panel near the ground and the ground; Step S43: Fix both ends of the outer pool plate in the corresponding outer slot one or outer slot two, and engage them with the groove at the bottom of the previous outer pool plate through the protrusion at the top of the next outer pool plate. Step S44: Repeat steps S41-S43 to complete the installation.

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