Flexible sealing structure of wall bushing and construction method

Abstract

The invention relates to the technical field of building construction, and discloses a wall bushing flexible sealing structure and a construction method.The wall bushing flexible sealing structure is applied to waterproofing between a medium pipeline and a wall and comprises a first sealing assembly, a middle supporting bushing, a second sealing assembly and a pressure measuring connecting mechanism; the first sealing assembly, the middle supporting sleeve and the second sealing assembly are sequentially arranged from inside to outside in the radial direction, the pressure of the first sealing space and the pressure of the second sealing space are detected through an external pressure measuring device, and therefore the sealing performance of the first sealing assembly and the sealing performance of the second sealing assembly are monitored. The sealing performance of the sealing structure can be monitored in real time, so that quantitative control over the sealing performance is achieved, and the situation that the sealing performance is reduced due to the fact that the sealing structure is aged and cannot be treated in time over time is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a flexible sealing structure of a wall sleeve and a construction method. Background Art

[0002] In the water supply and drainage of industrial buildings, civil buildings and municipal engineering, the medium pipeline often needs to be buried in the groundwater layer and pass through the walls of the external protective structures such as buildings and structures. In order to achieve the expected waterproof sealing effect, the wall-penetrating sleeve waterproof sealing structure described in the national standard drawing 02S404 flexible waterproof sleeve type B is usually adopted. This structure is currently a widely used solution in the industry. -

[0003] The typical structure of the flexible waterproof sleeve type B is designed to seal the medium pipeline passing through the wall, mainly including the wall sleeve, the seal on the water-facing side and the flexible sealing assembly on the water-receiving side. Among them, the wall sleeve is fixed to the wall through the wing ring plate, and the wing ring plate is designed to be buried in the wall in the middle, and the wing ring plates at both ends (the wing ring plates at the water-facing and water-receiving end) protrude from the wall. The water-facing side adopts a rigid sealing method, by embedding the sealing material and sealing paste into the sleeve and positioning it with the welded inner retaining ring, so as to form the first waterproof barrier; while the water-receiving side is sealed by a flexible sealing assembly, which consists of a sealing ring group and an L-shaped flange gland, and forms a second waterproof barrier through the pre-tightening effect of the inner retaining ring welded in the sleeve and the gland.

[0004] In the sealing structure in the prior art, as time goes by, the rigid seal used on the water-facing surface cannot resist the degradation of sealing performance caused by deformation and settlement of the wall or pipe, thereby affecting the sealing effect. Summary of the invention

[0005] In view of this, the present invention provides a flexible sealing structure and construction method for a wall sleeve to solve the problem in the prior art that the sealing performance of the sealing structure deteriorates over time due to deformation and settlement of the wall or pipe, thereby affecting the sealing effect.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] In the first aspect, the present invention provides a flexible sealing structure of a wall sleeve, which is applied to waterproofing between a medium pipeline and a wall, and comprises: a first sealing component, a middle supporting sleeve, a second sealing component and a pressure measuring connection mechanism, which are sequentially arranged from the inside to the outside along the radial direction of the medium pipeline between the medium pipeline and the wall; the inner and outer sides of the first sealing component respectively have a first sealing space between the outer side of the medium pipeline and the inner side of the middle supporting sleeve, the inner and outer sides of the second sealing group respectively have a second sealing space between the outer side of the middle supporting sleeve and the wall, and the middle supporting sleeve is provided with a connecting hole connecting the first sealing space and the second sealing space; the pressure measuring connection mechanism is arranged along the axial direction of the middle supporting sleeve, one end of which is penetrated through the middle supporting sleeve and connected with the connecting hole, and the other end is suitable for connecting with an external pressure measuring device.

[0008] It has the following advantages:

[0009] A first sealing component, a middle supporting sleeve and a second sealing component are arranged between the medium pipeline and the wall, wherein the first sealing component, the middle supporting sleeve and the second sealing component are arranged in sequence from the inside to the outside along the radial direction, a first sealing space is formed between the inner and outer sides of the first sealing component and the medium pipeline and the middle supporting sleeve, and a second sealing gap is formed between the inner and outer sides of the second sealing component and the wall and the middle supporting sleeve. The middle supporting sleeve is provided with a connecting hole to connect the first sealing space and the second sealing space, and is connected to the connecting hole through a pressure measuring connection mechanism, so that a high-pressure medium is introduced into the connecting hole through an external pressure measuring device to detect the pressure of the first sealing space and the second sealing space, thereby realizing a pressure resistance test of the sealing performance of the first sealing component and the second sealing component. By setting the pressure measuring connection mechanism, the sealing performance of the sealing structure can be monitored regularly, thereby realizing quantitative control of the sealing performance, avoiding aging of the sealing structure over time and failure to deal with it in time, resulting in a decrease in the sealing performance.

[0010] According to an embodiment of the first aspect of the present invention, the first sealing assembly includes a plurality of first sealing ring groups and a plurality of first pre-compression retaining rings, the plurality of first sealing ring groups and the plurality of first pre-compression retaining rings are alternately arranged from right to left along the axial direction of the medium pipeline, the first sealing space includes a first sealing gap and a second sealing gap, the outer side of the first pre-compression retaining ring, the two first sealing ring groups located at both ends of the first pre-compression retaining ring and the inner side of the middle support sleeve enclose the first sealing gap, the inner side of the first pre-compression retaining ring, the two first sealing ring groups located at both ends of the first pre-compression retaining ring and the outer side of the medium pipeline enclose the second sealing gap;

[0011] The second sealing assembly includes multiple second sealing ring groups and multiple second pre-pressure retaining rings, and the multiple second sealing ring groups and multiple second pre-pressure retaining rings are alternately arranged from right to left along the axial direction of the medium pipeline, and the second sealing space includes a third sealing gap and a fourth sealing gap; the inner side of the second pre-pressure retaining ring, the two second sealing ring groups located at both ends of the second pre-pressure retaining ring and the outer side of the medium pipeline together form the third sealing gap, and the outer side of the second pre-pressure retaining ring, the two second sealing ring groups located at both ends of the second pre-pressure retaining ring and the inner side wall of the wall together form the fourth sealing gap.

[0012] According to an embodiment of the first aspect of the present invention, the first pre-load retaining ring is radially provided with a first through hole, the first through hole connects the first sealing gap and the third sealing gap, and the second pre-load retaining ring is radially provided with a second through hole, the second through hole connects the second sealing gap and the fourth sealing gap.

[0013] According to the first aspect of the present invention, the right end surface of the middle support sleeve is flush with the right side wall of the wall, and the left end surface of the middle support sleeve is flush with the left side wall of the wall;

[0014] The right end faces of the first sealing ring group and the second sealing ring group arranged near the right end are both flush with the right side wall of the wall; the left end face of the second pre-compression retaining ring arranged near the left end is flush with the left side wall of the wall;

[0015] The first pre-compression retaining ring arranged near the left end has an extension portion extending out of the left side wall of the wall.

[0016] According to an embodiment of the first aspect of the present invention, the flexible sealing structure of the wall sleeve also includes a first sealing end plate and a second sealing end plate which are sleeved on the medium pipeline and located at both ends of the wall, the left side surface of the first sealing end plate abuts against the right side wall of the wall to be suitable for sealing the first sealing ring group and the second sealing ring group, the right side surface of the second sealing end plate abuts against the left side wall of the wall, the bottom of the second sealing end plate abuts against the upper end surface of the second pre-load retaining ring arranged near the left end, and the thickness of the second sealing end plate is consistent with the length of the extension portion.

[0017] According to an embodiment of the first aspect of the present invention, the wall sleeve flexible sealing structure also includes a third sealing end plate which is sleeved on the medium pipeline and located on the left side of the wall, and the right side surface of the third sealing end plate abuts against the left side surface of the second sealing end plate and the left end surface of the first pre-load retaining ring.

[0018] According to an embodiment of the first aspect of the present invention, the first sealing end plate and the second sealing end plate are fixedly connected to the wall by a first fastener, the third sealing end plate is fixedly connected to the second sealing end plate by a second fastener, and the pressure measuring connection mechanism is penetrated through the first sealing end plate and the middle support sleeve to extend to communicate with the connecting hole.

[0019] According to the first aspect of the present invention, two pressure measuring connection mechanisms are provided and are disposed on both sides of the wall.

[0020] In a second aspect, the present invention further provides a construction method of a wall sleeve flexible sealing structure, comprising the following steps:

[0021] Open installation holes on the wall according to the designed dimensions;

[0022] A first sealing end plate is installed on the right side of the wall, and a second sealing assembly and a middle supporting sleeve are installed in the installation hole in sequence from the outside to the inside along the radial direction, and the second sealing end plate is fixedly installed on the left side of the wall to be suitable for fixing the second sealing assembly and the middle supporting sleeve;

[0023] Install the pressure measuring connection mechanism, and pass the pressure measuring connection mechanism through the first sealing end plate / the second sealing end plate so that one end of the pressure measuring connection mechanism extends to the connecting hole for communication;

[0024] Install the medium pipeline, pass the medium pipeline through the installation hole, install the first sealing assembly between the outer wall of the medium pipeline and the middle support sleeve, and fix the third sealing end plate on the left side of the wall;

[0025] For sealing test, the pressure measuring connection mechanism is connected to an external pressure measuring device, and high-pressure gas is introduced into the connecting hole.

[0026] According to a second aspect of the present invention, a waterproof sealing material is applied to the installation hole and the left and right sides of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A cross-sectional view of a flexible sealing structure of a wall sleeve according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1A local schematic diagram is shown.

[0030] Description of reference numerals:

[0031] 1. Wall; 2. Medium pipeline; 3. First sealing assembly; 4. Middle supporting sleeve; 5. Second sealing assembly; 6. First sealing end plate; 7. Second sealing end plate; 8. Third sealing end plate; 9. Pressure measuring connection mechanism; 10. External pressure measuring device; 31. First sealing ring group; 32. First pre-load retaining ring; 321. First through hole; 33. First sealing gap; 34. Second sealing gap; 41. Connecting hole; 51. Second sealing ring group; 52. Second pre-load retaining ring; 521. Second through hole; 53. Third sealing gap; 54. Fourth sealing gap. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Specifically, the water-facing side of the wall 1 is the right side, and the water-repelling side of the wall 1 is the left side.

[0037] Reference Figure 1 and Figure 2 As shown, in the first aspect of the present invention, the present invention provides a flexible sealing structure of a wall sleeve, which is applied to waterproofing between a medium pipe 2 and a wall 1. The inner and outer sides of the first sealing component 3 respectively have a first sealing space between the medium pipe 2 and the middle supporting sleeve 4, and the inner and outer sides of the second sealing component 5 respectively have a second sealing space between the middle supporting sleeve 4 and the wall 1. The middle supporting sleeve 4 is provided with a connecting hole 41 connecting the first sealing space and the second sealing space; the pressure measuring connection mechanism 9 is along the axial direction of the middle supporting sleeve 4, one end of which is penetrated through the middle supporting sleeve 4 and connected with the connecting hole 41, and the other end is suitable for connecting with an external pressure measuring device 10.

[0038] Specifically, a first sealing component 3, a middle supporting sleeve 4 and a second sealing component 5 are arranged between the medium pipeline 2 and the wall 1, wherein the first sealing component 3, the middle supporting sleeve 4 and the second sealing component 5 are arranged in sequence from the inside to the outside along the radial direction, and a first sealed space is formed between the inner and outer sides of the first sealing component 3 and the medium pipeline 2 and the middle supporting sleeve 4, and a second sealed gap 34 is formed between the inner and outer sides of the second sealing component 5 and the wall 1 and the middle supporting sleeve 4. The middle supporting sleeve 4 is provided with a connecting hole 41 to connect the first sealed space and the second sealed space, and is connected to the connecting hole 41 through a pressure measuring connection mechanism 9, so that a high-pressure medium is introduced into the connecting hole 41 through an external pressure measuring device 10 to detect the pressure of the first sealed space and the second sealed space, thereby realizing a pressure resistance test of the sealing performance of the first sealing component 3 and the second sealing component 5. By setting the pressure measuring connection mechanism 9, the sealing performance of the sealing structure can be monitored regularly, thereby realizing quantitative control of the sealing performance, avoiding aging of the sealing structure over time and failure to deal with it in time, resulting in a decrease in the sealing performance.

[0039] It can be understood that the sealing performance is further improved by the dual arrangement of the first sealing assembly 3 and the second sealing assembly 5, and the middle support sleeve 4 provides installation space for the first sealing assembly 3 while completing the installation of the second sealing assembly 5. The external pressure measuring device 10 is connected to the other end of the pressure measuring connection mechanism 9 through a hose, and a high-pressure medium is introduced into the communication hole 41 through the external pressure measuring device 10. The high-pressure medium includes high-pressure gas or water, and the sealing performance is monitored by monitoring the changes in the water pressure or air pressure of the first sealed space and the second sealed space.

[0040] In the first aspect of the present invention, the first sealing assembly 3 includes a plurality of first sealing ring groups 31 and a plurality of first pre-compression retaining rings 32. The plurality of first sealing ring groups 31 and the plurality of first pre-compression retaining rings 32 are alternately arranged from right to left along the axial direction of the medium pipeline 2. The first sealing space includes a first sealing gap 33 and a second sealing gap 34. The outer side of the first pre-compression retaining ring 32, the two first sealing ring groups 31 located at both ends of the first pre-compression retaining ring 32, and the inner side of the middle support sleeve 4 enclose the first sealing gap 33; the inner side of the first pre-compression retaining ring 32, the two first sealing ring groups 31 located at both ends of the first pre-compression retaining ring 32, and the outer side of the medium pipeline 2 enclose the second sealing gap 34.

[0041] The second sealing assembly 5 includes multiple second sealing ring groups 51 and multiple second pre-load retaining rings 52. The multiple second sealing ring groups 51 and the multiple second pre-load retaining rings 52 are alternately arranged from right to left along the axial direction of the medium pipeline 2. The second sealing space includes a third sealing gap 53 and a fourth sealing gap 54. The inner side of the second pre-load retaining ring 52, the two second sealing ring groups 51 located at both ends of the second pre-load retaining ring 52 and the outer side of the medium pipeline 2 form a third sealing gap 53, and the outer side of the second pre-load retaining ring 52, the two second sealing ring groups 51 located at both ends of the second pre-load retaining ring 52 and the inner side wall of the wall 1 form a fourth sealing gap 54.

[0042] Specifically, the first sealing assembly 3 and the second sealing assembly 5 both adopt a combination of rigid sealing and flexible sealing. The first sealing assembly 3 includes a first sealing ring group 31 and a first pre-compression retaining ring 32 which are alternately arranged from right to left in the axial direction, wherein the first sealing ring group 31 is a flexible sealing structure, the first pre-compression retaining ring 32 is a rigid sealing structure, and the first pre-compression retaining ring 32 and the first sealing ring group 31 are alternately arranged, thereby forming a plurality of first sealing gaps 33 and a plurality of second sealing gaps 34. Similarly, the second sealing assembly 5 includes a second sealing ring group 51 and a second pre-compression retaining ring 52 which are alternately arranged from right to left in the axial direction, the second sealing ring group 51 is a flexible sealing structure, the second pre-compression retaining ring 52 is a rigid sealing structure, and the alternating arrangement of the second sealing ring group 51 and the second pre-compression retaining ring 52 forms a plurality of third sealing gaps 53 and a fourth sealing gap 54. By monitoring the pressure of the plurality of first sealing gaps 33, the second sealing gap 34, the third sealing gap 53 and the fourth sealing gap 54, the sealing performance of the first sealing ring group 31 and the second sealing ring group 51 is monitored.

[0043] It can be understood that the first sealing ring group 31 and the second sealing ring group 51 each include at least two sealing rubber rings, and the setting of the sealing rubber rings realizes the sealing of the ends of the first pre-compression retaining ring 32 and the second pre-compression retaining ring 52. When the wall 1 or the pipeline deforms and settles, resulting in the increase of the first sealing gap 33, the second sealing gap 34, the third sealing gap 53 and the fourth sealing gap 54, the sealing rubber rings can expand to ensure the completeness of the seal. When the first sealing gap 33, the second sealing gap 34, the third sealing gap 53 and the fourth sealing gap 54 are reduced, the first pre-compression retaining ring 32 and the second pre-compression retaining ring 52 can achieve support to avoid damage to the medium pipeline 2. At the same time, it is ensured that the sealing rubber ring is within the elastic contraction range.

[0044] In the first aspect of the embodiment of the present invention, the first pre-load retaining ring 32 is radially provided with a first through hole 321, the first through hole 321 connects the first sealing gap 33 and the second sealing gap 34, and the second pre-load retaining ring 52 is radially provided with a second through hole 521, the second through hole 521 connects the third sealing gap 53 and the fourth sealing gap 54.

[0045] Specifically, by opening a first through hole 321 on the first pre-load retaining ring 32 and a second through hole 521 on the second pre-load retaining ring 52, wherein the first through hole 321 and the second through hole 521 are opened in radial directions, the first through hole 321 connects the first sealing gap 33 and the second sealing gap 34, and the second through hole 521 connects the third sealing gap 53 and the fourth sealing gap 54, thereby reducing the setting of the pressure measuring connection mechanism 9 and reducing the complexity of the structure.

[0046] In the first embodiment of the present invention, the right end surface of the middle support sleeve 4 is flush with the right side wall of the wall 1, and the left end surface of the middle support sleeve 4 is flush with the left side wall of the wall 1;

[0047] The right end faces of the first sealing ring group 31 and the second sealing ring group 51 arranged near the right end are both flush with the right side wall of the wall 1; the left end face of the second pre-compression retaining ring 52 arranged near the left end is flush with the left side wall of the wall 1;

[0048] The first pre-compression retaining ring 32 disposed near the left end has an extension portion extending out of the left side wall of the wall body 1 .

[0049] In the first aspect of the embodiment of the present invention, the wall sleeve flexible sealing structure also includes a first sealing end plate 6 and a second sealing end plate 7 which are sleeved on the medium pipeline 2 and located at both ends of the wall 1. The left side of the first sealing end plate 6 abuts against the right side wall of the wall 1 to be suitable for sealing the first sealing ring group 31 and the second sealing ring group 51. The right side of the second sealing end plate 7 abuts against the left side wall of the wall 1, and the bottom of the second sealing end plate 7 abuts against the upper end surface of the second pre-load retaining ring 52 arranged near the left end. The thickness of the second sealing end plate 7 is consistent with the length of the extension part.

[0050] Specifically, to ensure the sealing performance, the left end face of the first sealing end plate 6 needs to abut against the right side wall of the wall 1, and the right end of the middle support sleeve 4, the first sealing ring group 31 and the second sealing ring group 51 are all abutted against the first sealing end plate 6, thereby ensuring the sealing of the right side.

[0051] In the first aspect of the embodiment of the present invention, the wall sleeve flexible sealing structure also includes a third sealing end plate 8 which is sleeved on the medium pipeline 2 and located on the left side of the wall 1. The right side surface of the third sealing end plate 8 abuts against the left side surface of the second sealing end plate 7 and the left end surface of the second pre-load retaining ring 52.

[0052] Specifically, the left side of the wall 1 is provided with a second sealing end plate 7 and a third sealing end plate 8 in a stepped arrangement to further improve the sealing performance.

[0053] In the first aspect of the embodiment of the present invention, the first sealing end plate 6 and the second sealing end plate 7 are fixedly connected to the wall 1 by a first fastener, the third sealing end plate 8 is fixedly connected to the second sealing end plate 7 by a second fastener, and the pressure measuring connection mechanism 9 is penetrated through the middle support sleeve 4 of the first sealing end plate 6 to extend to communicate with the connecting hole 41.

[0054] In the first embodiment of the present invention, two pressure measuring connection mechanisms 9 are provided and are disposed on both sides of the wall 1 .

[0055] Specifically, the first fastener and the second fastener are both fastening bolts, and a plurality of pressure measuring connection mechanisms 9 are provided to improve the accuracy of pressure measurement and ensure the accuracy of sealing measurement.

[0056] In a second aspect, the present invention further provides a construction method of a wall sleeve flexible sealing structure, comprising the following steps:

[0057] Opening installation holes on the wall 1 according to the design dimensions;

[0058] It is understandable that during installation, the installation holes need to be dusted and the quality defects in the installation holes need to be repaired to ensure the sealing after installation. Holes can be drilled using a water drill according to the size given in the design.

[0059] A first sealing end plate 6 is installed on the right side of the wall 1, and a second sealing assembly 5 and a middle supporting sleeve 4 are installed in the installation hole in sequence from the outside to the inside along the radial direction, and a second sealing end plate 7 is fixedly installed on the left side of the wall 1 to be suitable for fixing the second sealing assembly 5 and the middle supporting sleeve 4;

[0060] Install the pressure measuring connection mechanism 9, and pass the pressure measuring connection mechanism 9 through the first sealing end plate 6 / the second sealing end plate 7, so that one end of the pressure measuring connection mechanism 9 extends to the connecting hole 41 for communication;

[0061] Install the medium pipeline 2, pass the medium pipeline 2 through the installation hole, install the first sealing assembly 3 between the outer wall of the medium pipeline 2 and the middle support sleeve 4, and fix the third sealing end plate 8 on the left side of the wall 1;

[0062] For sealing test, the pressure measuring connection mechanism 9 is connected to the external pressure measuring device 10 , and high-pressure gas is introduced into the connecting hole 41 .

[0063] In a specific embodiment, in order to reduce the overall cost of equipment upgrade and renovation of a cement plant, it is necessary to add a set of DN150 inlet and outlet pipelines to the original large-scale circulating water pool. After calculation by the structural professionals, it is allowed to open holes in the side wall of the pool on the premise of local structural wall filling to meet the needs of water professionals. The circulating water pool is square with an effective volume of 1000m 3 , the side length is 16m x 16m, the depth is 4m. The thickness of the side wall opening 1 is 300mm.

[0064] According to the table of national standard atlas 02S404, a galvanized DN150 steel pipe is used as the medium pipe 2, and the outer diameter of the galvanized DN150 steel pipe is D1=159mm. The diameter of the sealing rubber ring is d=6mm;

[0065] The inner diameter D2 of the middle support sleeve 4 = the outer diameter of the medium pipeline 2 + 2 × the diameter d of the sealing rubber ring + the cross-fitting clearance = 159 + 2 × 6 + 3 = 174 mm;

[0066] The outer diameter D3 of the middle support sleeve 4 = the inner diameter D2 of the middle support sleeve 4 + 2 × the wall thickness of the middle support sleeve 4 = 174 + 2 × 30 = 234 mm;

[0067] The diameter of the drill hole on the side wall of the circulating water pool D4 = the inner diameter D3 of the middle support sleeve 4 + 2 × the diameter d of the sealing rubber ring + the through-fitting clearance D4 = 234 + 2 × 6 + 4 = 250 mm;

[0068] Circulating water pool wall thickness H = 300mm;

[0069] According to the second embodiment of the present invention, a waterproof sealing material is applied to the installation hole and the left and right sides of the wall 1.

[0070] Specifically, in order to ensure the sealing performance, waterproof material is applied to the installation hole and the left and right end surfaces of the wall 1.

[0071] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A flexible sealing structure of a wall sleeve, used for waterproofing between a medium pipeline (2) and a wall (1), characterized in that: include: A first sealing component (3), a middle supporting sleeve (4) and a second sealing component (5) are sequentially arranged from the inside to the outside between the medium pipeline (2) and the wall (1) along the radial direction of the medium pipeline (2); A first sealed space is provided between the inner and outer sides of the first sealing component (3) and the medium pipeline (2) and the middle supporting sleeve (4), and a second sealed space is provided between the inner and outer sides of the second sealing component (5) and the middle supporting sleeve (4) and the wall (1), and the middle supporting sleeve (4) is provided with a connecting hole (41) connecting the first sealed space and the second sealed space; It also includes a pressure measuring connection mechanism (9), which is arranged along the axial direction of the middle supporting sleeve (4), with one end passing through the middle supporting sleeve (4) and communicating with the communicating hole (41), and the other end being suitable for connecting with an external pressure measuring device (10).

2. The wall bushing flexible sealing structure according to claim 1, characterized in that: The first sealing assembly (3) comprises a plurality of first sealing ring groups (31) and a plurality of first pre-pressure retaining rings (32), the plurality of first sealing ring groups (31) and the plurality of first pre-pressure retaining rings (32) being alternately arranged from right to left along the axial direction of the medium pipeline (2), the first sealing space comprising a first sealing gap (33) and a second sealing gap (34), the outer side of the first pre-pressure retaining ring (32), the two first sealing ring groups (31) located at the two ends of the first pre-pressure retaining ring (32) and the inner side of the middle support sleeve (4) forming the first sealing gap (33), and the inner side of the first pre-pressure retaining ring (32), the two first sealing ring groups (31) located at the two ends of the first pre-pressure retaining ring (32) and the outer side of the medium pipeline (2) forming the second sealing gap (34); The second sealing assembly (5) comprises a plurality of second sealing ring groups (51) and a plurality of second pre-pressure retaining rings (52), and the plurality of second sealing ring groups (51) and the plurality of second pre-pressure retaining rings (52) are alternately arranged from right to left along the axial direction of the medium pipeline (2), and the second sealing space comprises a third sealing gap (53) and a fourth sealing gap (54); the inner side of the second pre-pressure retaining ring (52), the two second sealing ring groups (51) located at the two ends of the second pre-pressure retaining ring (52) and the outer side of the medium pipeline (2) together form the third sealing gap (53), and the outer side of the second pre-pressure retaining ring (52), the two second sealing ring groups (51) located at the two ends of the second pre-pressure retaining ring (52) and the inner side wall of the wall (1) together form the fourth sealing gap (54).

3. The wall bushing flexible sealing structure according to claim 2, characterized in that: The first pre-load retaining ring (32) is provided with a first through hole (321) in the radial direction, the first through hole (321) is connected to the first sealing gap (33) and the second sealing gap (34), and the second pre-load retaining ring (52) is provided with a second through hole (521) in the radial direction, the second through hole (521) is connected to the third sealing gap (53) and the fourth sealing gap (54).

4. The wall bushing flexible sealing structure according to claim 3, characterized in that: The right end surface of the middle supporting sleeve (4) is flush with the right side wall of the wall (1), and the left end surface of the middle supporting sleeve (4) is flush with the left side wall of the wall (1); The right end faces of the first sealing ring group (31) and the second sealing ring group (51) arranged near the right end are both flush with the right side wall of the wall (1); the left end face of the second pre-compression retaining ring (52) arranged near the left end is flush with the left side wall of the wall (1); The first pre-compression retaining ring (32) arranged near the left end has an extension portion extending out of the left side wall of the wall (1).

5. The wall bushing flexible sealing structure according to claim 4, characterized in that: It also comprises a first sealing end plate (6) and a second sealing end plate (7) which are sleeved on the medium pipeline (2) and located at both ends of the wall (1); the left side surface of the first sealing end plate (6) abuts against the right side wall of the wall (1) so as to be suitable for sealing the first sealing ring group (31) and the second sealing ring group (51); the right side surface of the second sealing end plate (7) abuts against the left side wall of the wall (1); the bottom of the second sealing end plate (7) abuts against the upper end surface of the second pre-pressure retaining ring (52) arranged near the left end; and the thickness of the second sealing end plate (7) is consistent with the length of the extension portion.

6. The wall bushing flexible sealing structure according to claim 5, characterized in that: It also comprises a third sealing end plate (8) which is sleeved on the medium pipeline (2) and located on the left side of the wall (1); the right side surface of the third sealing end plate (8) abuts against the left side surface of the second sealing end plate (7) and the left end surface of the first pre-pressure retaining ring (32).

7. The wall bushing flexible sealing structure according to claim 6, characterized in that: The first sealed end plate (6) and the second sealed end plate (7) are fixedly connected to the wall (1) via a first fastener, the third sealed end plate (8) is fixedly connected to the second sealed end plate (7) via a second fastener, and the pressure measuring connection mechanism (9) is penetrated through the first sealed end plate (6) and the middle supporting sleeve (4) to extend to communicate with the connecting hole (41).

8. The wall bushing flexible sealing structure according to claim 1, characterized in that: The pressure measuring connection mechanisms (9) are provided in two numbers and are arranged on both sides of the wall (1).

9. A construction method for a flexible sealing structure of a wall sleeve, characterized in that: The following steps are involved: Opening a mounting hole on the wall (1) according to the designed dimensions; A first sealing end plate (6) is installed on the right side of the wall (1), a second sealing assembly (5) and a middle supporting sleeve (4) are installed in the installation hole in sequence from the outside to the inside along the radial direction, and a second sealing end plate (7) is fixedly installed on the left side of the wall (1) so as to be suitable for fixing the second sealing assembly (5) and the middle supporting sleeve (4); Installing a pressure measuring connection mechanism (9), and passing the pressure measuring connection mechanism (9) through the first sealing end plate (6) / the second sealing end plate (7), so that one end of the pressure measuring connection mechanism (9) extends to the connecting hole (41) for connection; Installing the medium pipeline (2), passing the medium pipeline (2) through the installation hole, installing the first sealing component (3) between the outer wall of the medium pipeline (2) and the middle supporting sleeve (4), and fixing the third sealing end plate (8) on the left side of the wall (1); For sealing test, the pressure measuring connection mechanism (9) is connected to the external pressure measuring device (10), and high-pressure gas is introduced into the connecting hole (41).

10. The construction method of the wall sleeve flexible sealing structure according to claim 9, characterized in that: Waterproof sealing material is applied to the installation hole and the left and right sides of the wall (1).

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