Self-balancing sealing plug and sealing system

Abstract

This invention provides a self-balancing sealing plug and sealing system, belonging to the field of geotechnical engineering technology. The self-balancing sealing plug includes a sealing plug body (7), with an axial passage (6) formed along its axial direction. A branch passage (8) is also connected to the axial passage (6). The two ends of the axial passage are axially symmetrical about the radial imaginary axis of symmetry of the sealing plug body (7). The sealing system includes a transverse connecting pipe (9), a sealing chamber (1), an inclined shaft (3), and the self-balancing sealing plug provided by this invention. The sealing chamber (1) is connected to the transverse connecting pipe (9), and the inner diameter of the transverse connecting pipe (9) is equal to the diameter of the sealing plug body (7). The inclined shaft (3) is connected to the transverse connecting pipe (9) via the branch passage (8). It can form a self-balancing system, thus enhancing the safety performance of the sealing system itself.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering, and in particular to a self-balancing sealing plug and a sealing system. Background Art

[0002] Geotechnical engineering is a civil engineering project that uses rock and soil as its working object and involves the utilization, treatment and transformation of rock and soil. High-pressure sealed chambers are mainly used in compressed gas energy storage systems to store high-pressure gas. The characteristic of compressed gas energy storage systems is that air must be stored in the form of high pressure to have a higher efficiency when releasing electrical energy. The container for storing high-pressure air must meet the strength requirements. If steel and other materials are used to build the container on the ground, it will inevitably be expensive. Therefore, considering placing the container underground and using the strength of the surrounding rock to restrain the high-pressure air will greatly reduce costs. Summary of the invention

[0003] In view of this, the present invention provides a self-balancing sealing plug and sealing system, which can utilize the connected tunnel space to achieve self-balancing, so as to reduce the cost and facilitate construction, thereby being more suitable for practical use.

[0004] In order to achieve the above first object, the technical solution of the self-balancing sealing plug provided by the present invention is as follows:

[0005] The self-balancing sealing plug provided by the present invention comprises a sealing plug body (7),

[0006] An axial passage (6) is provided in the axial direction of the sealing plug body.

[0007] The axial passage (6) is also connected to a branch passage (8).

[0008] The shapes of the two ends of the axial passage are axially symmetrical with respect to the radial imaginary symmetry axis of the sealing plug body (7).

[0009] The self-balancing sealing plug provided by the present invention can be further implemented by adopting the following technical measures.

[0010] Preferably, the branch (8) is located at the axial center of the sealing plug body (7).

[0011] Preferably, the self-balancing sealing plug further comprises a radial load (5), a through hole being arranged on the radial load (5), the radial load (5) being adapted to the shape of the side wall of the sealing plug body (7) at the portion where the radial load (5) contacts the sealing plug body (7), the through hole being aligned with the branch (8), and the apertures of the through hole and the branch (8) being the same.

[0012] Preferably, the radial load (5) and the sealing plug body (7) are integrally formed.

[0013] Preferably, both ends of the sealing plug body (7) are hemispherical, the diameter of the hemispherical shape (4) is the same as the diameter of the sealing plug body (7), and the hemispherical shape (4) bulges from both ends toward the axial center of the sealing plug body (7).

[0014] In order to achieve the above second purpose, the technical solution of the sealing system provided by the present invention is as follows:

[0015] The sealing system provided by the present invention comprises a transverse connecting pipeline (9), a sealing chamber (1), an inclined shaft (3) and a self-balancing sealing plug provided by the present invention.

[0016] The sealed chamber (1) is in communication with the transverse communication pipeline (9), and both ends of the transverse communication pipeline (9) are sealed;

[0017] The inner diameter of the transverse connecting pipe (9) is equal to the diameter of the sealing plug body (7).

[0018] The inclined well (3) is connected and communicated with the transverse connecting pipeline (9) through the branch line (8).

[0019] The sealing system provided by the present invention can also be further implemented by adopting the following technical measures.

[0020] Preferably, a sealing mechanism is provided between the outer wall of the sealing plug body (7) and the inner wall of the transverse connecting pipe (9).

[0021] Preferably, a sealing mechanism is provided between the outer wall of the radial load (5) and the inner wall of the inclined shaft (3).

[0022] Preferably, the sealing mechanism is made of a sealing material that is deformable under pressure.

[0023] Preferably, the sealing system is arranged underground, and the pressurized gas in the sealed chamber (1) is guided out through the inclined shaft (3).

[0024] When the self-balancing sealing plug provided by the present invention is used to form the sealing system provided by the present invention, the pressurized gas can be guided out through the inclined well 3 after passing through the axial passage 6 and then the branch 8, wherein, since the shapes of the two ends of the axial passage are axially symmetrical with the radial imaginary symmetry axis of the sealing plug body 7, it can form a self-balancing system, thereby enhancing the safety performance of the sealing system itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0026] Attached Figure 1 A schematic diagram of the structure of a self-balancing sealing plug provided in an embodiment of the present invention;

[0027] Attached Figure 2 A schematic diagram of the structure of a sealing system provided by an embodiment of the present invention;

[0028] Description of reference numerals:

[0029] 1-sealed chamber, 2-self-balancing sealing plug, 3-inclined shaft, 4-hemispherical, 5-radial load, 6-axial passage, 7-sealing plug body, 8-branch, 9-lateral connecting pipeline, 10-underground structure. DETAILED DESCRIPTION

[0030] In view of this, the present invention provides a self-balancing sealing plug and sealing system, which can utilize the connected tunnel space to achieve self-balancing, so as to reduce the cost and facilitate construction, thereby being more suitable for practical use.

[0031] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation, structure, features and effects of a self-balancing sealing plug and sealing system proposed by the present invention in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0032] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B. Specifically, it is understood that: A and B may be included at the same time, A may exist alone, or B may exist alone, and any of the above three situations may be met.

[0033] Self-balancing sealing plug embodiment

[0034] See attached Figure 1 The self-balancing sealing plug provided in the embodiment of the present invention comprises a sealing plug body 7. An axial passage 6 is provided in the axial direction of the sealing plug body, and a branch 8 is connected to the axial passage 6. The shapes of the two ends of the axial passage are axially symmetrical with respect to the radial imaginary symmetry axis of the sealing plug body 7.

[0035] When the self-balancing sealing plug provided by the present invention is used to form the sealing system provided by the present invention, the pressurized gas can be guided out through the inclined well 3 after passing through the axial passage 6 and then the branch 8, wherein, since the shapes of the two ends of the axial passage are axially symmetrical with the radial imaginary symmetry axis of the sealing plug body 7, it can form a self-balancing system, thereby enhancing the safety performance of the sealing system itself.

[0036] Among them, the branch 8 is located at the axial center of the sealing plug body 7. In this case, since the branch 8 is located at the axial center of the sealing plug body 7, after entering the axial passage 6 through the two ends of the sealing plug body 7, the air path stroke and flow rate at both ends can offset each other to a part, and then when being guided out through the branch 8, the safety performance of the sealing system can be further enhanced. In this embodiment, the sealing plug body 7 can be made of concrete and cast by a mold whose shape is compatible with the shape of the self-balancing sealing plug provided by the embodiment of the present invention. On this basis, in order to facilitate demoulding of the self-balancing sealing plug provided by the embodiment of the present invention, a gelatinous or solidified grease can be applied on the inner wall of the mold before casting. The mold can also be a mold composed of a plurality of split partial molds. In this way, after the self-balancing sealing plug provided by the embodiment of the present invention is formed, it can be demoulded by splitting the plurality of split partial molds, thereby making demoulding more convenient.

[0037] The self-balancing sealing plug further includes a radial load 5, a through hole is provided on the radial load 5, the radial load 5 is adapted to the side wall shape of the sealing plug body 7 at the part in contact with the sealing plug body 7, the through hole is aligned with the branch 8, and the aperture of the through hole is the same as that of the branch 8. In this embodiment, the diameter of the radial load 5 is the same as the inner diameter of the inclined well 3 to be connected, on this basis, safety accidents caused by leakage of pressurized gas through the gap between the radial load 5 and the inner wall of the inclined well 3 to be connected can be avoided.

[0038] Among them, the radial load 5 is integrally formed with the sealing plug body 7. In this case, there is no connection joint between the radial load 5 and the sealing plug body 7, which can avoid stress concentration at the connection joint position between the radial load 5 and the sealing plug body 7 and reduce the service life of the self-balancing sealing plug. In this embodiment, the radial load 5 and the sealing plug 7 can be cast using concrete through a mold whose shape is compatible with the shape of the self-balancing sealing plug provided by the embodiment of the present invention. On this basis, in order to facilitate demoulding of the self-balancing sealing plug provided by the embodiment of the present invention, a gelatinous or solidified grease can be applied to the inner wall of the mold before casting. The mold can also be a mold composed of a plurality of split partial molds. In this way, after the self-balancing sealing plug provided by the embodiment of the present invention is formed, it can be demoulded by splitting the plurality of split partial molds, thereby making demoulding more convenient.

[0039] Among them, the two ends of the sealing plug body 7 are hemispherical, the diameter of the hemispherical shape 4 is the same as the diameter of the sealing plug body 7, and the shape of the hemispherical shape 4 bulges from the two ends toward the axial center of the sealing plug body 7. In this case, since the hemispherical shape 4 is isotropic, this property can be fully utilized to achieve the self-balancing of the sealing plug body 7 provided in the embodiment of the present invention. In addition, the reason why the hemispherical shapes 4 at both ends of the sealing plug body 7 provided in the embodiment of the present invention need to bulge toward the axial center of the sealing plug body 7 is to form a buffer air chamber on the outside of the hemispherical shape 4, which is more convenient for the pressure gas to flow into the inclined well 3.

[0040] Sealing System Embodiment

[0041] See attached Figure 2 The sealing system provided by the embodiment of the present invention comprises a transverse connecting pipe 9, a sealing chamber 1, an inclined shaft 3 and a self-balancing sealing plug provided by the present invention. The sealing chamber 1 is connected to the transverse connecting pipe 9, both ends of the transverse connecting pipe 9 are closed, the inner diameter of the transverse connecting pipe 9 is equal to the diameter of the sealing plug body 7, and the inclined shaft 3 is connected and connected to the transverse connecting pipe 9 through a branch 8.

[0042] When the self-balancing sealing plug provided by the present invention is used to form the sealing system provided by the present invention, the pressurized gas can be guided out through the inclined well 3 after passing through the axial passage 6 and then the branch 8, wherein, since the shapes of the two ends of the axial passage are axially symmetrical with the radial imaginary symmetry axis of the sealing plug body 7, it can form a self-balancing system, thereby enhancing the safety performance of the sealing system itself.

[0043] A sealing mechanism is provided between the outer wall of the sealing plug body 7 and the inner wall of the transverse connecting pipe 9. In this case, it is possible to avoid leakage of pressurized gas through the gap between the outer wall of the sealing plug body 7 and the inner wall of the transverse connecting pipe 9 to cause safety accidents.

[0044] A sealing mechanism is provided between the outer wall of the radial load 5 and the inner wall of the inclined well 3. In this case, it is possible to avoid leakage of pressurized gas through the gap between the outer wall of the radial load 5 and the inner wall of the inclined well 3 to cause safety accidents.

[0045] The sealing mechanism is made of a sealing material that is deformable under pressure. In this embodiment, the material of the sealing mechanism can be rubber or silicone. Their characteristics are that once the pressure volume is squeezed and reduced, at this time, even if the gap used for sealing is slightly increased, the sealing mechanism can compensate for the increased gap by expanding appropriately, thereby avoiding pressure gas leakage accidents caused by sealing failure. In addition, by making the horizontal connecting pipeline 9, the inclined well 3, the sealing plug body 7, and the radial load 5 have an interference fit, the technical effect of effectively sealing the sealing gap between them can also be achieved.

[0046] The sealing system is arranged underground, and the pressurized gas in the sealed chamber 1 is guided out through the inclined shaft 3. In this case, the pressurized gas in the sealed chamber 1 is not only restricted by the sealed chamber 1 itself, but also further restricted by the rock and soil outside the sealed chamber 1, which can further ensure the application safety of the sealing system provided by the embodiment of the present invention.

[0047] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A self-balancing sealing plug, characterized in that: It comprises a sealing plug body (7), An axial passage (6) is provided in the axial direction of the sealing plug body. The axial passage (6) is also connected to a branch passage (8). The shapes of the two ends of the axial passage are axially symmetrical with respect to the radial imaginary symmetry axis of the sealing plug body (7); Both ends of the sealing plug body (7) are hemispherical (4), the diameter of the hemispherical shape is the same as the diameter of the sealing plug body (7), and the hemispherical shape (4) bulges from both ends toward the axial center of the sealing plug body (7).

2. The self-balancing sealing plug according to claim 1, characterized in that: The branch (8) is located at the axial center of the sealing plug body (7).

3. The self-balancing sealing plug according to claim 1, characterized in that: It also includes a radial load (5), on which a through hole is provided. The radial load (5) is adapted to the shape of the side wall of the sealing plug body (7) at the portion where the radial load (5) contacts the sealing plug body (7), the through hole is aligned with the branch (8), and the aperture of the through hole is the same as that of the branch (8).

4. The self-balancing sealing plug according to claim 3, characterized in that: The radial load (5) is integrally formed with the sealing plug body (7).

5. A sealing system, characterized in that: It comprises a transverse connecting pipeline (9), a sealed chamber (1), an inclined shaft (3) and a self-balancing sealing plug as claimed in any one of claims 1 to 4, The sealed chamber (1) is in communication with the transverse communicating pipe (9), and both ends of the transverse communicating pipe (9) are sealed; The inner diameter of the transverse connecting pipe (9) is equal to the diameter of the sealing plug body (7). The inclined well (3) is connected and communicated with the transverse connecting pipeline (9) through the branch line (8).

6. The sealing system according to claim 5, characterized in that A sealing mechanism is provided between the outer wall of the sealing plug body (7) and the inner wall of the transverse connecting pipe (9).

7. The sealing system according to claim 5, characterized in that The self-balancing sealing plug is the self-balancing sealing plug according to claim 3 or 4, A sealing mechanism is provided between the outer wall of the radial load (5) and the inner wall of the inclined shaft (3).

8. The sealing system according to claim 6 or 7, characterized in that: The sealing mechanism is made of a sealing material that is deformable under pressure.

9. The sealing system according to claim 5, characterized in that The sealing system is arranged underground and guides the pressurized gas in the sealed chamber (1) out through the inclined well (3).

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