Ventilation partition wall and ventilation system of underground water-sealed oil storage cavern

Abstract

The utility model relates to the technical field of tunnel ventilation, particularly to a ventilation partition wall and ventilation system of underground water-sealed oil storage tunnel, which comprises: an inner frame, a retaining wall is laid on the lower part of the inner frame, a plurality of air pipes are installed on the upper part of the inner frame, the air pipes are fixedly connected with the inner frame, and a sealing material is laid between the top of the inner frame and the top of the retaining wall. The ventilation partition wall can be arranged in a ventilation connecting tunnel, the air pipes thereon are used for supplying fresh air into a construction tunnel, and the retaining wall at the lower part and the sealing material at the upper part can effectively prevent the backflow of dirty air. Fresh air and dirty air are physically separated, the independent flow directions of fresh air and dirty air are ensured, the problem of air mixing is fundamentally solved, the recirculation of contaminated fresh air is avoided, the air replacement efficiency is improved, and the air quality in the tunnel is improved.

Description

Technical Field

[0001] This utility model relates to the field of cave ventilation technology, and in particular to a ventilation partition wall and ventilation system for an underground water-sealed oil storage cave. Background Technology

[0002] A groundwater-sealed oil storage cavern is a cavern of a certain volume excavated in the rock mass below the stable groundwater level. Water is injected through natural or artificial water curtain holes to fill the fissures in the surrounding rock mass, maintaining a high groundwater level in the surrounding rock mass to prevent oil and gas leakage. This achieves the purpose of storing oil in the cavern by utilizing the water-sealing effect of stable groundwater.

[0003] When constructing underground water-sealed oil storage caverns, the caverns are buried at a depth of ≥90M, and the construction generates a large amount of polluted and harmful gases, dust and other harmful substances. Therefore, the requirements for ventilation effect and ventilation measures are high. In traditional underground water-sealed oil storage cavern ventilation systems, fresh air and polluted air are mutually cross-ventilated through ventilation shafts, and fresh air and polluted air cannot be separated, which affects the ventilation effect inside the cavern. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing ventilation systems for underground water-sealed oil storage caverns, where fresh air and polluted air cross-flow through ventilation shafts, and to provide a ventilation partition wall and ventilation system for underground water-sealed oil storage caverns.

[0005] In a first aspect, this utility model provides a ventilation partition wall for an underground water-sealed oil storage cavern, comprising: An inner frame is provided, with a retaining wall laid at the bottom and several air ducts installed at the top. The air ducts are fixedly connected to the inner frame, and sealing material is laid between the top of the inner frame and the top of the retaining wall.

[0006] Traditional ventilation systems allow both fresh and stale air to flow within ventilation shafts, easily leading to cross-contamination and cross-flow. The ventilation partition wall of this underground water-sealed oil storage cavern can be installed within the ventilation connecting tunnel, using ducts to supply fresh air directly into the construction tunnel. Simultaneously, the lower retaining wall and upper sealing material effectively prevent stale air from flowing back. This physical separation of fresh and stale air ensures independent flow directions, fundamentally solving the cross-flow problem, preventing contaminated fresh air from recirculating, improving air exchange efficiency, and ultimately improving air quality within the cavern.

[0007] Preferably, the inner frame includes a plurality of horizontal bars and a plurality of vertical bars, wherein the horizontal bars and the vertical bars intersect.

[0008] With this structural design, the horizontal and vertical bars are connected in a grid pattern to form a stable frame skeleton. This effectively disperses external pressure and resists stress from different directions, such as wind pressure or squeezing caused by minor deformation of the rock mass. It provides reliable support for the air duct above and the retaining wall below, ensuring that the entire ventilation partition wall is stable in the harsh underground environment for a long time and is not easily deformed or damaged.

[0009] Preferably, the inner frame includes: a plurality of horizontal bars and a plurality of vertical bars, wherein the horizontal bars and the vertical bars are perpendicular to each other.

[0010] With this structural design, when the horizontal and vertical bars intersect perpendicularly, they form a regular grid structure, which can more effectively disperse and transfer stress, improve the overall load-bearing capacity and deformation resistance of the frame, and ensure that it will not twist due to uneven stress during long-term use.

[0011] Preferably, the same duct is fixedly connected to at least two of the horizontal bars and two of the vertical bars.

[0012] Traditional single-point or two-point fixing methods can easily lead to ducts loosening, deforming, or even falling off during use due to wind pressure, vibration, or uneven stress. By fixing the duct to multiple horizontal and vertical bars at multiple points, a stable structure with approximately "four-point support" or more is created. This effectively distributes the weight of the duct and wind pressure stress across the entire frame, ensuring that the duct maintains its position and shape even under long-term, high-load operating conditions. This avoids noise or shaking caused by duct loosening and extends the service life of the duct.

[0013] Preferably, the number of air ducts is at least five, and the air ducts are symmetrically distributed about the vertical axis of the ventilation partition wall of the underground water-sealed oil storage cavern.

[0014] The installation of at least five air ducts allows for the simultaneous delivery of more fresh air into the construction tunnel, increasing the overall air volume and enabling faster and more effective dilution and removal of harmful gases and dust generated during construction.

[0015] The air ducts are symmetrically distributed on both sides of the vertical axis of the partition wall, ensuring that fresh air can enter the construction tunnel evenly. This symmetrical air supply mode avoids fresh air being concentrated in a certain area, while creating ventilation dead zones in other areas, thus improving the air exchange efficiency.

[0016] Preferably, in the vertical direction, the duct is located on at least three different horizontal planes.

[0017] Underground cavern construction areas are typically tall and spacious, and the density of harmful gases and dust may be layered depending on the type. This structural design enables three-dimensional air supply and improves air supply efficiency.

[0018] Preferably, the retaining wall is a brick wall structure.

[0019] The preferred retaining wall is a brick wall structure, which is simple to construct and uses inexpensive materials, thus significantly reducing the construction cost of the partition wall.

[0020] Preferably, it also includes a pedestrian walkway located at the lower part of the retaining wall.

[0021] Pedestrian walkways are essential routes for construction workers to enter and exit the construction area. By adopting this structural design and placing the pedestrian walkway under the retaining wall of the ventilation partition, it can be ensured that construction workers can easily and safely pass through the ventilation connection tunnel, which facilitates on-site construction.

[0022] Preferably, the sealing material includes a wooden template and foam adhesive, wherein the wooden template is installed between the air duct and the inner frame, and the foam adhesive is located between the air duct and the wooden template.

[0023] Wooden formwork and foam adhesive are preferred as sealing materials, which facilitates on-site construction. The wooden formwork and foam adhesive have a certain degree of elasticity, which can play a buffering and shock-absorbing role between the air duct and the inner frame, reducing friction and stress between the air duct and the frame, thereby reducing noise and extending the service life of the entire ventilation partition.

[0024] In a second aspect, this utility model provides a ventilation system for an underground water-sealed oil storage cavern, including a ventilation shaft, a ventilation connecting tunnel, a construction tunnel, and a ventilation partition wall for the underground water-sealed oil storage cavern; wherein, the ventilation shaft is connected to the construction tunnel through the ventilation connecting tunnel, a fan is arranged in the ventilation shaft, the ventilation partition wall of the underground water-sealed oil storage cavern is arranged in the ventilation connecting tunnel, and the fan is connected to the ventilation duct.

[0025] The ventilation system for underground water-sealed oil storage caverns provided by this utility model physically separates fresh air from polluted air by setting up ventilation partitions in the ventilation connecting roadways and using the air ducts on them to specifically transport fresh air. Fresh air enters the construction roadway through the air ducts, while polluted air is directly discharged from the construction roadway, preventing polluted air from entering the ventilation shaft. Fresh air and polluted air do not interfere with each other, effectively solving the problem of cross-ventilation.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a ventilation partition wall for an underground water-sealed oil storage cavern. It can be installed within the ventilation connecting tunnel, using ducts to supply fresh air into the construction tunnel. Simultaneously, the lower retaining wall and the upper sealing material effectively prevent the backflow of contaminated air. Physically separating fresh and contaminated air ensures independent flow directions, fundamentally solving the problem of cross-contamination, preventing the recirculation of contaminated fresh air, improving air exchange efficiency, and ultimately improving air quality within the cavern.

[0027] 2. This utility model provides a ventilation system for an underground water-sealed oil storage cavern. By setting up a ventilation partition wall in the ventilation connecting roadway and using the air duct on it to specifically transport fresh air, the fresh air and the polluted air are physically separated. Fresh air enters the construction roadway through the air duct, while polluted air is directly discharged from the construction roadway, avoiding polluted air from entering the ventilation shaft. The fresh air and polluted air do not interfere with each other, effectively solving the problem of cross-ventilation. Attached Figure Description

[0028] Figure 1 Elevation view of the ventilation partition wall of an underground water-sealed oil storage cavern; Figure 2 This is a schematic diagram of the internal frame structure.

[0029] Marked in the image: 1-Inner frame, 11-Horizontal bar, 12-Vertical bar, 2-Retaining wall, 3-Air duct, 4-Pedestrian walkway, 51-Wooden formwork. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Example 1 like Figure 1 , Figure 2 As shown, this embodiment provides a ventilation partition wall for an underground water-sealed oil storage cavern, including: an inner frame 1, a retaining wall 2 laid on the lower part of the inner frame 1, several air ducts 3 installed on the upper part of the inner frame 1, the air ducts 3 being fixedly connected to the inner frame 1, and a sealing material being laid between the top of the inner frame 1 and the top of the retaining wall 2.

[0037] Specifically, in this embodiment, the inner frame 1 can be made of double-span I18 I-beams welded on-site or prefabricated in advance.

[0038] In traditional ventilation systems, both fresh and stale air flow within the ventilation shaft, easily leading to cross-contamination and cross-flow. The ventilation partition wall of the underground water-sealed oil storage cavern provided in this embodiment can be arranged within the ventilation connecting roadway, utilizing the air duct 3 above it to supply fresh air into the construction roadway. For example, a fan can be connected to the air duct 3. Simultaneously, the lower retaining wall 2 and the upper sealing material effectively prevent stale air from flowing back. Physically separating fresh and stale air ensures independent flow directions for each, fundamentally solving the cross-flow problem, preventing the recirculation of contaminated fresh air, improving air exchange efficiency, and ultimately improving air quality within the cavern.

[0039] Furthermore, such as Figure 2 As shown, in this embodiment, the inner frame 1 includes several horizontal bars 11 and several vertical bars 12, which intersect. With this structural arrangement, the horizontal bars 11 and vertical bars 12 are connected in a grid pattern, forming a stable steel skeleton. This effectively disperses external pressure and resists stresses from different directions, such as wind pressure or compression caused by minor deformation of the rock mass. It provides reliable support for the upper ventilation duct 3 and the lower retaining wall 2, ensuring the long-term stability of the entire ventilation partition wall in harsh underground environments, preventing deformation or damage.

[0040] Furthermore, the horizontal bars 11 are parallel to each other, and the vertical bars 12 are parallel to each other, with the horizontal bars 11 and vertical bars 12 perpendicular to each other. This structural arrangement, when the horizontal bars 11 and vertical bars 12 intersect perpendicularly, forms a regular grid structure, which can more effectively disperse and transfer stress, improving the overall load-bearing capacity and deformation resistance of the frame, and ensuring that it will not twist due to uneven stress during long-term use.

[0041] Furthermore, the same duct 3 is fixedly connected to at least two horizontal bars 11 and two vertical bars 12. Figure 1 Taking the duct 3 with the number ① as an example, the duct 3 with the number ① is welded to two horizontal bars 11 at the top and bottom respectively, and the duct 3 with the number ① is welded to two vertical bars 12 on the left and right respectively.

[0042] Traditional single-point or two-point fixing methods can easily lead to the duct 3 loosening, deformation, or even falling off during use due to wind pressure, vibration, or uneven stress. By fixing the duct 3 to multiple horizontal bars 11 and vertical bars 12 at multiple points, a stable structure with approximately "four-point support" or more points of support is created. This effectively distributes the weight and wind pressure stress of the duct 3 across the entire frame, ensuring that the duct 3 maintains its position and shape under long-term, high-load operating conditions. This avoids noise or shaking caused by the loosening of the duct 3 and extends its service life.

[0043] Furthermore, the number of ventilation ducts 3 is at least five, and the ventilation ducts 3 are symmetrically distributed about the vertical axis of the ventilation partition wall of the underground water-sealed oil storage cavern. Specifically, withFigure 1 For example, Figure 1 The diagram shows five ducts 3 numbered ① to ⑤. Duct 3 numbered ③ is located on the vertical axis, and ducts 3 numbered ①, ②, ④, and ⑤ are symmetrically distributed about the vertical axis.

[0044] The number of air ducts 3 is at least five, which can simultaneously deliver more fresh air into the construction tunnel, improve the overall air supply volume, and more quickly and effectively dilute and expel harmful gases and dust generated during construction.

[0045] The air duct 3 is symmetrically distributed on the left and right sides of the vertical axis of the partition wall, which ensures that fresh air can enter the construction tunnel evenly. This symmetrical air supply mode avoids fresh air being concentrated in a certain area and forming ventilation dead corners in other areas, thus improving the air replacement efficiency and effect.

[0046] Furthermore, in the vertical direction, duct 3 is located on at least three different horizontal planes. Specifically, with Figure 1 For example, Figure 1 Ducts 2 and 4 are located at the top horizontal plane, duct 3 is located at the middle horizontal plane, and ducts 1 and 5 are located at the bottom horizontal plane. Underground cavern construction areas are typically tall and spacious, and the density of harmful gases and dust may be stratified depending on their type. This structural arrangement enables three-dimensional air supply, improving air supply efficiency.

[0047] Furthermore, in this embodiment, the retaining wall 2 is a brick wall structure, with the blocks arranged in a staggered pattern, the overlap length being 1 / 2 of the block length, not less than 1 / 3 of the block height, and not less than 90mm. Preferably, the retaining wall 2 is a brick wall structure, which is simple to construct, uses inexpensive materials, and can significantly reduce the construction cost of the partition wall.

[0048] Furthermore, in this embodiment, the ventilation partition wall of the underground water-sealed oil storage cavern also includes a pedestrian passage 4, which is located at the lower part of the retaining wall 2. The pedestrian passage 4 is a necessary path for construction personnel to enter and exit the construction area. By adopting this structural setting and placing the pedestrian passage 4 at the lower part of the retaining wall 2 of the ventilation partition wall, it can be ensured that construction personnel can easily and safely pass through the ventilation connecting tunnel, which is convenient for on-site construction.

[0049] Furthermore, such as Figure 1As shown, the sealing materials include wooden templates 51 and foam adhesive. Wooden templates 51 are installed between the duct 3 and the inner frame 1, and foam adhesive is placed between the duct 3 and the wooden templates 51. During construction, after the duct 3 and the inner frame 1 are securely welded together, the gaps around the duct 3 can be filled using wooden templates 51 cut to the appropriate shape and tied to the inner frame 1. After sealing, foam adhesive can be applied to fill the gaps between the duct 3 and the wooden templates 51, the gaps between adjacent wooden templates 51, and the gaps between the wooden templates 51 and the inner frame 1.

[0050] Wooden formwork 51 and foam adhesive are preferred as sealing materials, which facilitates on-site construction. The wooden formwork 51 and foam adhesive have a certain degree of elasticity, which can play a buffering and shock-absorbing role between the air duct 3 and the inner frame 1, reducing friction and stress between the air duct 3 and the inner frame 1, thereby reducing noise and extending the service life of the entire ventilation partition.

[0051] Example 2 This embodiment provides a ventilation system for an underground water-sealed oil storage cavern, including a ventilation shaft, a ventilation connecting tunnel, a construction tunnel, and a ventilation partition wall for the underground water-sealed oil storage cavern provided in Embodiment 1. The ventilation shaft is connected to the construction tunnel via the ventilation connecting tunnel. A fan is installed inside the ventilation shaft. The ventilation partition wall of the underground water-sealed oil storage cavern is located in the ventilation connecting tunnel. The fan is connected to a duct 3. Fresh air is blown into the duct 3 by the fan and enters the construction tunnel, while polluted air is blocked by the ventilation partition wall of the underground water-sealed oil storage cavern and cannot enter the ventilation shaft.

[0052] The ventilation system of the underground water-sealed oil storage cavern provided in this embodiment physically separates fresh air from polluted air by setting up ventilation partition walls in the ventilation connecting roadway and using the air duct 3 on them to deliver fresh air. Fresh air enters the construction roadway through the air duct 3, while polluted air is directly discharged from the construction roadway, avoiding polluted air from entering the ventilation shaft. Fresh air and polluted air do not interfere with each other, effectively solving the problem of cross-ventilation.

[0053] 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 ventilation partition wall for an underground water-sealed oil storage cavern, characterized in that, include: An inner frame (1) is provided with a retaining wall (2) at its lower part. Several air ducts (3) are installed on the upper part of the inner frame (1). The air ducts (3) are fixedly connected to the inner frame (1). Sealing material is laid between the top of the inner frame (1) and the top of the retaining wall (2).

2. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, The inner frame (1) includes a plurality of horizontal bars (11) and a plurality of vertical bars (12), wherein the horizontal bars (11) and the vertical bars (12) intersect.

3. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, The inner frame (1) includes: a plurality of horizontal bars (11) and a plurality of vertical bars (12), wherein the horizontal bars (11) and the vertical bars (12) are perpendicular to each other.

4. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 3, characterized in that, The same duct (3) is fixedly connected to at least two of the horizontal bars (11) and two of the vertical bars (12).

5. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, The number of air ducts (3) is at least five, and the air ducts (3) are symmetrically distributed on the left and right sides of the vertical axis of the ventilation partition wall of the underground water-sealed oil storage cavern.

6. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 5, characterized in that, In the vertical direction, the duct (3) is located on at least three different horizontal planes.

7. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, The retaining wall (2) is a brick wall structure.

8. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, It also includes a pedestrian walkway (4), which is located at the lower part of the retaining wall (2).

9. The ventilation partition wall of an underground water-sealed oil storage cavern according to claim 1, characterized in that, The sealing material includes a wooden template (51) and foam adhesive. The wooden template (51) is installed between the air duct (3) and the inner frame (1), and the foam adhesive is located between the air duct (3) and the wooden template (51).

10. A ventilation system for an underground water-sealed oil storage cavern, characterized in that, It includes a ventilation shaft, a ventilation connecting tunnel, a construction tunnel, and a ventilation partition wall of the underground water-sealed oil storage cavern as described in any one of claims 1 to 9; wherein the ventilation shaft is connected to the construction tunnel through the ventilation connecting tunnel, a fan is arranged in the ventilation shaft, the ventilation partition wall of the underground water-sealed oil storage cavern is arranged in the ventilation connecting tunnel, and the fan is connected to the air duct (3).

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