CN223049689U - A plugging device for water pressure test of large diameter ductile iron pipe - Google Patents
A plugging device for water pressure test of large diameter ductile iron pipe Download PDFInfo
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- CN223049689U CN223049689U CN202422394625.2U CN202422394625U CN223049689U CN 223049689 U CN223049689 U CN 223049689U CN 202422394625 U CN202422394625 U CN 202422394625U CN 223049689 U CN223049689 U CN 223049689U
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Abstract
本实用新型公开了一种用于大直径球墨铸铁管水压试验的堵头装置，属于堵头装置技术领域。本实用新型包括与管道密封相配合的密封结构，和对密封结构进行抗压增加的增强结构；所述密封结构包括密封板，设置在密封板上插入管道内的密封头和与管道通过螺栓和螺母进行固定的固定孔，密封头上套设有密封圈A；位于密封头相对侧的密封板的中心位置处设置有一加强柱，密封板上设置有多根加强杆，加强杆的一端与加强柱相连接，另一端与密封板的边缘一侧相连接，所述加强杆上设置有与增强结构相配合的螺纹孔；密封结构和增强结构上相对应设置有一排气孔，且增强结构的排气孔上设置有排气阀。本实用新型用于大直径球墨铸铁管水压试验。
The utility model discloses a plugging device for a large-diameter ductile iron pipe water pressure test, and belongs to the technical field of plugging devices. The utility model includes a sealing structure matched with the pipeline seal, and a reinforcing structure for increasing the pressure resistance of the sealing structure; the sealing structure includes a sealing plate, a sealing head inserted into the pipeline and a fixing hole fixed to the pipeline by bolts and nuts on the sealing plate, and a sealing ring A is sleeved on the sealing head; a reinforcing column is arranged at the center position of the sealing plate on the opposite side of the sealing head, and a plurality of reinforcing rods are arranged on the sealing plate, one end of the reinforcing rod is connected to the reinforcing column, and the other end is connected to one side of the edge of the sealing plate, and a threaded hole matched with the reinforcing structure is arranged on the reinforcing rod; an exhaust hole is correspondingly arranged on the sealing structure and the reinforcing structure, and an exhaust valve is arranged on the exhaust hole of the reinforcing structure. The utility model is used for a large-diameter ductile iron pipe water pressure test.
Description
Technical Field
A plug device for a major diameter ductile cast iron pipe hydrostatic test is used for the major diameter ductile cast iron pipe hydrostatic test, belongs to plug device technical field.
Background
The major diameter nodular cast iron pipe hydrostatic test is after the pipeline installation is qualified, after the pipeline both sides are backfilled according to the design requirement (the interface department must not backfill), the segmentation pressure test, when the system water injection, should open the discharge valve of pipeline each eminence, with the air exhaust. After the water is filled, if the design pressure of the DN2400 spheroidal graphite cast iron pipe is 0.9Mpa, the design pressure of the DN2200 spheroidal graphite cast iron pipe is 1.1Mpa. When the pressure reaches the constant pressure for 2 minutes, the joint pipe body is checked without damage and water leakage, if the pressure drop is not more than 0.02MPa in 2 minutes, the tightness test is qualified, the pressure test quality is good, and a quality staff makes test records.
Plug devices for hydrostatic testing of large diameter ductile iron pipes are commonly used to plug the ends of pipes or specific test sections. In hydrostatic testing, it is necessary to isolate a portion of the pipe to apply pressure and check it for the pressure level specified by the design, while detecting the presence of leaks or other problems. The specific location of the use of the plug device depends on the specific requirements of the test, including installing a plug at a certain end of the tubing to close the tubing, then injecting water into the length of tubing and applying pressure to perform the test, if a certain portion of the tubing is serviced or replaced, typically installing a plug near the service or replacement section to perform an independent test on that portion, installing a plug at a valve or junction of the tubing to perform a pressure test on a specific area, etc.
The plug device for the hydrostatic test of the large-diameter ductile cast iron pipe in the prior art is made of high-strength metal, such as steel or cast iron, is matched with a sealing element, and is fixed by adopting a bolt and nut mode. Because the diameter of the large-diameter ductile cast iron pipe is large, the following technical problems exist in the plug device:
1. And 2, the sealing effect is poor, so that the problems of leakage in the testing process and influence on the accuracy of the testing result are easily caused.
Disclosure of utility model
The utility model aims to provide a plug device for a large-diameter ductile iron pipe hydrostatic test, which solves the problems that the prior art is large in size and heavy in weight, so that the on-site installation and the disassembly are time-consuming and labor-consuming, the construction safety is easy to cause and the like.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
A plug device for a large-diameter ductile iron pipe hydrostatic test comprises a sealing structure matched with pipeline sealing and a reinforcing structure for increasing compression resistance of the sealing structure;
The sealing structure comprises a sealing plate, a sealing head and a fixing hole, wherein the sealing head is arranged on the sealing plate and inserted into a pipeline, the fixing hole is fixed with the pipeline through a bolt and a nut, and a sealing ring A is sleeved on the sealing head;
A reinforcing column is arranged at the central position of the sealing plate at the opposite side of the sealing head, a plurality of reinforcing rods are arranged on the sealing plate, one end of each reinforcing rod is connected with the reinforcing column, the other end of each reinforcing rod is connected with one side of the edge of the sealing plate, and threaded holes matched with the reinforcing structure are formed in the reinforcing rods;
The sealing structure and the reinforcing structure are correspondingly provided with an exhaust hole, and the exhaust hole of the reinforcing structure is provided with an exhaust valve.
Further, a sealing gasket A arranged on the sealing plate outside the sealing head is arranged on the sealing ring A, and a mounting hole A corresponding to the threaded hole is formed in the sealing gasket A.
Further, the reinforcing rods are uniformly arranged on the sealing plate along the circumferential direction of the sealing plate.
Further, the reinforcing structure comprises a reinforcing plate, a groove matched with the reinforcing rod is formed in the reinforcing plate, and a mounting hole B matched with the threaded hole is formed in the reinforcing plate at the position corresponding to the groove;
The reinforcing plate is provided with a sealing gasket B which is positioned on one side of the groove, and a mounting hole C corresponding to the mounting hole B is arranged on the sealing gasket B which is positioned in the groove.
Further, at edge one side of reinforcing plate, be provided with the edge sealing plate that seals the cooperation department of seal structure and pipeline on the reinforcing plate, set up the sealing washer B that seals the cooperation department of seal structure and pipeline on the edge sealing plate.
Further, the reinforcing plate is also provided with a through hole penetrating through the reinforcing column.
Further, the reinforcing plate is a plate structure, or
The reinforcing plate is composed of a multi-block unit structure.
Compared with the prior art, the utility model has the advantages that:
1. the sealing structure and the reinforcing structure are matched in a modularized manner, so that the problem that an integral structure is large in size and heavy in weight is avoided, the installation effect is improved, the construction safety is guaranteed, the sealing structure is tightly matched with the inner wall of a pipeline through the sealing plate, the sealing head and the sealing ring A, the sealing structure can be provided by the sealing device, leakage in the water pressure test process is effectively prevented, the reinforcing column and the reinforcing rod can increase the compression resistance of the sealing structure by the sealing structure, the stability and the compression resistance of the sealing structure in the high-pressure environment are improved, meanwhile, the sealing structure is convenient to match with the reinforcing structure through the threaded holes in the reinforcing rod, the structural strength of the sealing structure can be further enhanced, and structural damage cannot occur in the high-pressure test;
2. According to the utility model, the sealing gasket A is arranged on the sealing ring A, so that the sealing performance of the sealing ring can be further improved, and particularly in a high-pressure environment, the sealing gasket A can be used as an additional sealing layer to prevent the sealing ring A from leaking under high pressure, thereby avoiding the problems that the leakage occurs in the testing process and the accuracy of a testing result is affected;
3. The reinforcing rods are uniformly distributed on the perimeter of the sealing plate, so that the structural stability of the whole plug can be improved, the stress can be uniformly dispersed when the plug bears the pressure, the local stress concentration is reduced, and the pressure resistance of the plug is enhanced;
4. The reinforcing structure can increase the structural strength of the plug, improve the pressure resistance, and the groove can be used as the installation position of the reinforcing rod so as to be capable of being rapidly positioned and installed, and the sealing gasket B can further improve the sealing performance of the plug, for example, when a sealing plate is damaged, the sealing gasket B can effectively play a role in sealing and protecting;
5. The utility model is provided with the edge sealing plate on the reinforcing plate, and the purpose of arranging the sealing ring B on the edge sealing plate is to seal the edge of the matched part of the sealing structure and the pipeline, so that water or other fluid can not leak through the edge in the test process, and the reliability of the sealing can be improved especially in a high-pressure environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the present utility model as seen from the reinforcing plate side;
FIG. 2 is a schematic view of the structure of the present utility model as seen from one side of the seal structure;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is an exploded view of FIG. 1;
FIG. 5 is a schematic structural view of a seal structure according to the present utility model;
FIG. 6 is a schematic view of the reinforcing structure of the present utility model, wherein 1-sealing structure, 2-reinforcing structure, 3-sealing plate, 4-sealing head, 5-fixing hole, 6-sealing ring A, 7-reinforcing column, 8-reinforcing rod, 9-threaded hole, 10-sealing gasket A, 11-mounting hole A, 12-reinforcing plate, 13-groove, 14-mounting hole B, 15-sealing gasket B, 16-mounting hole C, 17-edge sealing plate, 18-sealing ring B, 19-through hole are shown.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.
Example 1
In order to solve the problems that the existing plug device is large in size and heavy in weight, so that time and labor are wasted in field installation and disassembly, construction safety is easy to cause, and the like. As shown in fig. 1-6, a plug device for a large-diameter ductile cast iron pipe hydrostatic test is provided, which comprises a sealing structure 1 matched with a pipeline seal and a reinforcing structure 2 for increasing the compression resistance of the sealing structure 1, wherein the sealing structure 1 comprises a sealing plate 3, a sealing head 4 arranged on the sealing plate 3 and inserted into the pipeline and a fixing hole 5 fixed with the pipeline through bolts and nuts, a sealing ring A6 is sleeved on the sealing head 4, a reinforcing column 7 is arranged at the center position of the sealing plate 3 positioned at the opposite side of the sealing head 4, a plurality of reinforcing rods 8 are arranged on the sealing plate 3, one ends of the reinforcing rods 8 are connected with the reinforcing columns 7, the other ends of the reinforcing rods 8 are connected with one side of the edge of the sealing plate 3, a threaded hole 9 matched with the reinforcing structure 2 is arranged on the reinforcing rod 8, an exhaust hole is correspondingly arranged on the sealing structure 1 and the reinforcing structure 2, an exhaust hole is correspondingly arranged in the pipeline at any position on one side of the edge, for example, the exhaust hole is arranged in a position corresponding to the sealing head 4, the sealing plate 3 and the reinforcing structure in a corresponding region between every two reinforcing rods, and the exhaust hole is arranged on the reinforcing structure 2.
In practice, when the large-diameter ductile cast iron pipe needs to be subjected to a hydrostatic test, the sealing head 4 sleeved with the sealing ring A6 is penetrated into the end part of the pipe, then the bolt passes through the fixing hole 5 on the sealing plate 3 and the hole at the end part of the pipe, and is fixed through the nut, and after the fixing, the reinforcing structure is matched with the threaded hole 9 on the reinforcing rod 8 through the bolt, so that the reinforcing structure is fixed on the sealing structure. After fixing, the exhaust valve arranged on the fixing device is positioned on the upper side. When the system is filled with water, an exhaust valve at the high position of the pipeline is opened to exhaust the air. After the water is filled, if the pressure meets the requirement, the tightness test can be considered to be qualified, the pressure test quality is good, a quality staff makes test records, and otherwise, the tightness test is unqualified. According to the embodiment, through the modularized cooperation of the sealing structure and the reinforcing structure, the problem that the integral structure is large in size and heavy in weight is avoided, so that the installation effect is improved, construction safety is guaranteed, the sealing structure is used through the sealing plate and the sealing head and the sealing ring A, the sealing structure tightly matched with the inner wall of the pipeline can be provided by the plug device, leakage in the water pressure testing process is effectively prevented, the reinforcing column and the reinforcing rod can increase the compression resistance of the plug to the sealing structure, the stability and the compression resistance of the plug in the high-pressure environment are improved, meanwhile, the threaded hole on the reinforcing rod is matched with the reinforcing structure, the structural strength of the plug can be further enhanced, and structural damage cannot occur in the high-pressure test.
Example 2
On the basis of the embodiment 1, a sealing gasket a10 arranged on the sealing plate 3 outside the sealing head 4 is arranged on the sealing ring A6, and a mounting hole a11 corresponding to the threaded hole 9 is arranged on the sealing gasket a 10. In practice, when the water pressure test is required to be carried out on the large-diameter ductile cast iron pipe, the sealing head 4 sleeved with the sealing ring A6 and the sealing gasket A10 is penetrated into the end part of the pipe to fix the sealing structure. The sealing gasket A is arranged on the sealing ring A, so that the sealing performance of the sealing ring can be further improved, and particularly under a high-pressure environment, the sealing gasket A can be used as an additional sealing layer to prevent the sealing ring A from leaking under high pressure, thereby avoiding the problem that the accuracy of a test result is affected due to the leakage in the test process.
Example 3
On the basis of embodiment 2, the reinforcing rods 8 are uniformly arranged on the sealing plate 3 in the circumferential direction of the sealing plate 3. The reinforcing rods are limited to be uniformly distributed on the circumference of the sealing plate, so that the structural stability of the whole plug can be improved, the stress can be uniformly dispersed when the plug bears the pressure, the local stress concentration is reduced, and the pressure resistance of the plug is enhanced.
Example 4
On the basis of embodiment 3, the reinforcing structure 2 comprises a reinforcing plate 12, wherein a groove 13 matched with the reinforcing rod 8 is formed in the reinforcing plate 12, a mounting hole B14 matched with the threaded hole 9 is formed in the reinforcing plate 12 at the position corresponding to the groove 13, a sealing pad B15 is arranged on one side of the groove 13, and a mounting hole C16 corresponding to the mounting hole B14 is formed in the sealing pad B15 in the groove 13.
In practice, the grooves 13 are corresponding to the reinforcing rods 8, the mounting holes C16 and B14 are corresponding to the threaded holes 9, and the reinforcing structure is fixed on the sealing structure through the threaded matching of the bolts and the threaded holes 9. The reinforced structure in this embodiment can increase the structural strength of end cap, improves its withstand voltage ability, and the mounted position of stiffener can be regarded as to the recess to can fix a position the installation fast, sealing performance of end cap also can further be improved to sealed pad B, if when the closing plate appears damaging, can effectively play sealed guard action, just adopts this structure promptly, can play dual sealed effect.
Example 5
On the basis of embodiment 4, an edge sealing plate 17 for sealing the joint between the sealing structure 1 and the pipe is provided on the reinforcing plate 12 on one side of the edge of the reinforcing plate 12, and a seal ring B18 for sealing the joint between the sealing structure 1 and the pipe is provided on the edge sealing plate 17. The edge sealing plate is arranged on the reinforcing plate, the purpose of arranging the sealing ring B on the edge sealing plate is to seal the edge of the matching part of the sealing structure and the pipeline (the edge sealing plate seals the edge of the matching part of the sealing structure and the pipeline in a sleeved mode), so that water or other fluid is prevented from leaking through the edge in the testing process, and the sealing reliability can be improved especially in a high-pressure environment.
Example 6
On the basis of embodiment 5, the reinforcing plate 12 is further provided with a through hole 19 penetrating the reinforcing column 7. The purpose of setting up the through-hole on the reinforcing plate is convenient for fix a position the installation fast, can realize preliminary fixed effect simultaneously.
Example 6
On the basis of embodiment 5, the reinforcing plate 12 is a plate structure as shown in fig. 1, or the reinforcing plate 12 is formed of a plurality of unit structures, such as unit structures formed by symmetrically cutting the reinforcing plate 12.
Claims (7)
1. The plug device for the large-diameter ductile iron pipe hydrostatic test is characterized by comprising a sealing structure (1) matched with pipeline sealing and a reinforcing structure (2) for increasing the compression resistance of the sealing structure (1);
The sealing structure (1) comprises a sealing plate (3), a sealing head (4) arranged on the sealing plate (3) and inserted into a pipeline, and a fixing hole (5) fixed with the pipeline through a bolt and a nut, wherein a sealing ring A (6) is sleeved on the sealing head (4);
A reinforcing column (7) is arranged at the central position of the sealing plate (3) at the opposite side of the sealing head (4), a plurality of reinforcing rods (8) are arranged on the sealing plate (3), one end of each reinforcing rod (8) is connected with the corresponding reinforcing column (7), the other end of each reinforcing rod is connected with one side of the edge of the sealing plate (3), and threaded holes (9) matched with the reinforcing structure (2) are formed in the reinforcing rods (8);
The sealing structure (1) and the reinforcing structure (2) are correspondingly provided with an exhaust hole, and the exhaust hole of the reinforcing structure (2) is provided with an exhaust valve.
2. The plug device for the hydrostatic test of the large-diameter ductile iron pipe according to claim 1 is characterized in that a sealing gasket A (10) arranged on a sealing plate (3) outside the sealing head (4) is arranged on the sealing ring A (6), and a mounting hole A (11) corresponding to the threaded hole (9) is arranged on the sealing gasket A (10).
3. The plug device for hydrostatic test of large-diameter ductile iron pipes according to claim 2, wherein the reinforcing rods (8) are uniformly arranged on the sealing plate (3) along the circumferential direction of the sealing plate (3).
4. The plug device for the hydrostatic test of the large-diameter ductile iron pipe according to claim 3, wherein the reinforcing structure (2) comprises a reinforcing plate (12), a groove (13) matched with the reinforcing rod (8) is arranged on the reinforcing plate (12), and a mounting hole B (14) matched with the threaded hole (9) is arranged on the reinforcing plate (12) at the position corresponding to the groove (13);
The reinforcing plate (12) is provided with a sealing gasket B (15) at one side of the groove (13), and the sealing gasket B (15) in the groove (13) is provided with a mounting hole C (16) corresponding to the mounting hole B (14).
5. The plug device for hydrostatic test of large-diameter ductile iron pipe according to claim 4, wherein an edge sealing plate (17) for sealing the matching position of the sealing structure (1) and the pipeline is arranged on one side of the edge of the reinforcing plate (12), and a sealing ring B (18) for sealing the matching position of the sealing structure (1) and the pipeline is arranged on the edge sealing plate (17).
6. The plug device for hydrostatic test of large-diameter nodular cast iron pipes according to claim 5, wherein the reinforcing plate (12) is further provided with a through hole (19) penetrating through the reinforcing column (7).
7. The plug device for hydrostatic testing of large-diameter ductile iron pipes according to claim 6, wherein said reinforcing plate (12) is a plate structure or said reinforcing plate (12) is composed of a multi-block unit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422394625.2U CN223049689U (en) | 2024-09-30 | 2024-09-30 | A plugging device for water pressure test of large diameter ductile iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422394625.2U CN223049689U (en) | 2024-09-30 | 2024-09-30 | A plugging device for water pressure test of large diameter ductile iron pipe |
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| Publication Number | Publication Date |
|---|---|
| CN223049689U true CN223049689U (en) | 2025-07-01 |
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ID=96153633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422394625.2U Active CN223049689U (en) | 2024-09-30 | 2024-09-30 | A plugging device for water pressure test of large diameter ductile iron pipe |
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| Country | Link |
|---|---|
| CN (1) | CN223049689U (en) |
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- 2024-09-30 CN CN202422394625.2U patent/CN223049689U/en active Active
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