PCCP hydrostatic pressure test pipe end plug structure

Abstract

The utility model discloses a PCCP pipe hydrostatic pressure test pipe end plug structure. The PCCP pipe hydrostatic pressure test pipe end plug structure comprises a spigot end plug used for plugging a spigot end and a socket end plug used for plugging a socket end. The spigot end plug comprises a spigot plug plate, and a bell mouth structure is arranged on one side face of the spigot plug plate and used for being matched with a spigot ring of a PCCP to be plugged. The socket end plug comprises a socket plug plate, a spigot structure is arranged on one side face of the socket plug plate, and the spigot structure is used for being matched with a socket ring of the PCCP to be plugged. The socket structure is arranged on the socket plug board, the socket structure is arranged on the socket plug board, and a similar socket ring and socket ring insertion adaptive structure is formed during use, so that the socket end of a pipeline can be plugged simply and efficiently; the device is simple in structure, easy to manufacture, low in cost and easy to use and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline hydrostatic pressure testing, in particular to a PCCP pipe hydrostatic pressure testing pipe end plugging structure. Background Art

[0002] After the pipeline construction is completed, it is usually necessary to conduct a static pressure test on the pipeline to check the installation quality of the water pipeline, the quality of the materials, and the installation quality of the well chamber equipment, to find and solve existing problems, and to ensure that the project quality is qualified and safely put into operation. During the test process, it is usually necessary to seal the pipe end of the prestressed concrete cylinder pipe (PCCP). The existing plug structure, such as the specification of the Chinese invention patent CN117147058A, discloses a PCCP pipeline water pressure test plugging frame, including a rear support seat assembly, a front pressure sliding assembly, an inner sleeve assembly, and a traction water filling assembly. It is not designed to match the spigot ring or socket ring at the end of the PCCP pipe, and the structure is relatively complicated. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a PCCP pipe hydrostatic test pipe end plug structure, which has a simple structure and is easy to use and operate.

[0004] The utility model provides a PCCP pipe hydrostatic test pipe end plug structure, comprising a spigot end plug for plugging the spigot end and a socket end plug for plugging the socket end;

[0005] The spigot end plug includes a spigot plugging plate, a socket structure is provided on one side of the spigot plugging plate, the socket structure is used to adapt to the spigot ring of the PCCP pipe to be plugged, and a first rib is provided on the other side of the spigot plugging plate; an exhaust hole, a water inlet hole and a water outlet hole are opened on the spigot plugging plate, and a first exhaust valve, a first water inlet valve and a first water outlet valve are provided on the corresponding holes;

[0006] The socket end plug includes a socket plugging plate, a socket structure is arranged on one side surface of the socket plugging plate, and the socket structure is used to adapt to the socket ring of the PCCP pipe to be blocked, and a second rib is arranged on the other side surface of the socket plugging plate; an exhaust hole, a water inlet hole and a water outlet hole are opened on the socket plugging plate, and a second exhaust valve, a second water inlet valve and a second water outlet valve are arranged on the corresponding holes.

[0007] In the above-mentioned PCCP pipe hydrostatic test pipe end plug structure, by setting a socket structure on the socket plugging plate, it is adapted to the socket ring of the PCCP pipe to be plugged, forming a plug-in adaptation structure similar to that of the socket ring and the socket ring, so that the socket end of the pipeline can be simply and efficiently plugged by the socket end plug; by setting a socket structure on the socket plugging plate, it is adapted to the socket ring of the PCCP pipe to be plugged, and also forming a plug-in adaptation structure similar to that of the socket ring and the socket ring, so that the socket end of the pipeline can be simply and efficiently plugged by the socket end plug. In addition, the socket end plug and the socket end plug are simple in structure, easy to manufacture, low in cost, and simple to operate.

[0008] Furthermore, the socket structure includes a socket steel cylinder, the inner side surface of which can be plugged and adapted with the socket ring of the PCCP pipe to be sealed; one end of the socket steel cylinder is fixed on the socket plugging plate, and the axis of the socket steel cylinder is perpendicular to the socket plugging plate; the other end is radially expanded outward to form a trumpet shape.

[0009] Furthermore, the socket structure also includes a first reinforcement ring, the single-sided radial cross-section of the first reinforcement ring is L-shaped, one annular surface is vertically fixed to the socket plug, and the other annular surface is vertically fixed to the outer surface of the socket steel cylinder.

[0010] Furthermore, the axial dimension of the socket steel cylinder is not less than A, wherein A is the axial overlap dimension of the spigot ring and the socket ring of the PCCP pipe to be plugged when they are inserted and fitted. Preferably, the axial dimension of the socket steel cylinder is A, and a certain manufacturing deviation is allowed.

[0011] Furthermore, the plug-in plug is a circular plate and is coaxially fixedly connected to the socket steel cylinder. Preferably, the plug-in plug has a diameter larger than the outer diameter of the PCCP pipe to be plugged.

[0012] Furthermore, the socket structure includes a socket steel cylinder, the outer surface of which can be plugged and adapted with the socket ring of the PCCP pipe to be sealed; one end of the socket steel cylinder is fixed on the socket plugging plate, and the axis of the socket steel cylinder is perpendicular to the socket plugging plate; an annular groove is provided on the outer surface of the other end, and the annular groove is used to place a seal.

[0013] Furthermore, the socket steel cylinder is composed of a first cylinder section and a second cylinder section, the inner diameter of the first cylinder section is larger than the inner diameter of the second cylinder section, and the outer diameter of the first cylinder section is smaller than the outer diameter of the second cylinder section; one end of the first cylinder section is fixed on the actual socket plugging plate; the annular groove is provided on the outer side surface of the second cylinder section.

[0014] Furthermore, the socket structure also includes a second reinforcement ring and a third reinforcement ring; the single-sided radial cross-section of the second reinforcement ring is L-shaped, one annular surface is vertically fixed on the socket plugging plate, and the other annular surface is vertically fixed on the inner side surface of the first barrel section; the single-sided radial cross-section of the third reinforcement ring is L-shaped, one annular surface is vertically fixed on the socket plugging plate, and the other annular surface is vertically fixed on the inner side surface of the end of the second barrel section; the inner diameter of the third reinforcement ring is smaller than that of the second reinforcement ring.

[0015] Furthermore, the axial dimensions of the third reinforcement ring and the socket steel cylinder are the same and are not less than A, wherein A is the axial overlap dimension when the socket ring and the socket ring of the PCCP pipe to be plugged are properly fitted. Preferably, the axial dimensions of the third reinforcement ring and the socket steel cylinder are both A, and a certain manufacturing deviation is allowed.

[0016] Furthermore, the bell plugging plate is a circular plate and is coaxially fixedly connected to the socket steel cylinder. Preferably, the bell plugging plate has a diameter greater than the outer diameter of the PCCP pipe to be plugged.

[0017] In summary, the above-mentioned PCCP pipe hydrostatic test pipe end plug structure has a simple structure, simple operation, easy manufacturing and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 It is a partial axial cross-sectional view of the socket end plug of the utility model when in use.

[0020] Figure 2 It is a front view of the socket end plug of the utility model.

[0021] Figure 3 It is a partial axial cross-sectional view of the socket end plug of the utility model when in use.

[0022] Figure 4 It is a front view of the socket end plug of the utility model.

[0023] Figure 5 It is a schematic diagram of the socket ring of the PCCP pipe to be blocked after being fitted with the socket ring of the PCCP pipe to be blocked according to the utility model.

[0024] In the figure, 1. plug at the socket end; 11. plug plate at the socket; 12. socket structure; 121. socket steel cylinder; 122. first reinforcement ring; 13. first rib; 14. first exhaust valve; 15. first water inlet valve; 16. first water outlet valve; 17. third rib; 2. plug at the socket end; 21. socket plug plate; 22. socket structure; 221. socket steel cylinder; 222. annular groove; 223. second reinforcement ring; 224. third reinforcement ring; 23. second rib; 24. second exhaust valve; 25. second water inlet valve; 26. second water outlet valve; 27. fourth rib; 3. PCCP pipe to be blocked; 31. socket ring; 32. socket ring. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0026] Example 1

[0027] Figure 1-5 The utility model shows a PCCP pipe hydrostatic test pipe end plug structure. Figure 1-5 As shown, the PCCP pipe hydrostatic test pipe end plug structure includes a spigot end plug 1 for plugging the spigot end and a socket end plug 2 for plugging the socket end; the spigot end plug 1 includes a spigot plug plate 11, a socket structure 12 is provided on one side of the spigot plug plate 11, the socket structure 12 is used to adapt to the spigot ring 31 of the PCCP pipe 3 to be plugged, and a first rib 13 is provided on the other side of the spigot plug plate 11; an exhaust hole, a water inlet hole and a water outlet hole are opened on the spigot plug plate 11, and a water outlet hole is provided on the corresponding hole. A first exhaust valve 14, a first water inlet valve 15 and a first water outlet valve 16 are provided; the socket end plug 2 includes a socket plugging plate 21, a socket structure 22 is provided on one side surface of the socket plugging plate 21, the socket structure 22 is used to adapt to the socket ring 32 of the PCCP pipe 3 to be blocked, and a second rib 23 is provided on the other side surface of the socket plugging plate 21; the socket plugging plate 21 is provided with an exhaust hole, a water inlet hole and a water outlet hole, and a second exhaust valve 24, a second water inlet valve 25 and a second water outlet valve 26 are provided on the corresponding holes.

[0028] like Figure 1 and Figure 2 As shown, the socket structure 12 includes a socket steel cylinder 121, the inner side surface of the socket steel cylinder 121 can be plugged and matched with the socket ring 31 of the PCCP pipe 3 to be blocked; one end of the socket steel cylinder 121 is fixed on the socket plugging plate 11, and the axis of the socket steel cylinder 121 is perpendicular to the socket plugging plate 11; the other end is radially expanded outward to form a trumpet shape.

[0029] The structure of the socket steel cylinder 121 is as follows Figure 5The structure of the socket ring 32 shown is similar, the only difference is that the socket steel cylinder 121 does not have an end that is radially expanded inward, but instead has a straight end and a flared end, and is shorter in length, so that it can be obtained by further processing the socket ring 32 during actual production and processing.

[0030] Optionally, the socket structure 12 further includes a first reinforcement ring 122 , the single-sided radial cross-section of the first reinforcement ring 122 is L-shaped, one annular surface is vertically fixed to the plug plug 11 , and the other annular surface is vertically fixed to the outer surface of the socket steel cylinder 121 .

[0031] The first reinforcement ring 122 is an annular angle steel structure, and the structure is reinforced on the outside of the vertical connection part between the socket steel cylinder 121 and the plug plug 11 to ensure a large pressure-bearing capacity.

[0032] Optionally, the axial dimension of the socket steel cylinder 121 is not less than A, wherein A is the axial overlap dimension when the spigot ring 31 and the socket ring 32 of the PCCP pipe 3 to be plugged are inserted and matched, such as Figure 5 As shown, the value of A is set according to the specific model of the PCCP pipe 3 to be plugged and actual needs.

[0033] The axial dimension of the socket steel cylinder 121 is not less than A, and when in use, it can ensure that it is inserted and matched with the socket ring 31 of the PCCP pipe 3 to be sealed to achieve sealing.

[0034] Optionally, the axial dimension of the socket steel cylinder 121 is A, and a certain manufacturing deviation is allowed.

[0035] Optional, such as Figure 2 As shown, the plug plate 11 is a circular plate and is coaxially fixedly connected to the socket steel cylinder 121. The diameter of the plug plate 11 is larger than the outer diameter of the PCCP pipe 3 to be plugged.

[0036] Optional, such as Figure 1 and Figure 2 As shown, the first rib 13 is a straight plate arranged on the side of the plug plug 11, and the plate surface of the straight plate is perpendicular to the side of the plug plug 11, and is arranged in a grid shape in the horizontal and vertical directions. In addition, a third rib 17 is arranged at the outer edge of the side of the plug plug 11 where the first rib 13 is arranged. The third rib 17 is annular and sleeved at the outer edge. The first rib 13 and the third rib 17 have the same height.

[0037] like Figure 3 and Figure 4As shown, the socket structure 22 includes a socket steel cylinder 221, the outer surface of which can be plugged and matched with the socket ring 32 of the PCCP pipe 3 to be sealed; one end of the socket steel cylinder 221 is fixed on the socket plugging plate 21, and the axis of the socket steel cylinder 221 is perpendicular to the socket plugging plate 21; an annular groove 222 is provided on the outer surface of the other end, and the annular groove 222 is used to place a seal.

[0038] Optionally, the socket steel cylinder 221 is composed of a first cylinder section and a second cylinder section, the inner diameter of the first cylinder section is larger than the inner diameter of the second cylinder section, and the outer diameter of the first cylinder section is smaller than the outer diameter of the second cylinder section; one end of the first cylinder section is fixed on the actual socket plug 21; an annular groove 222 is provided on the outer side surface of the second cylinder section.

[0039] The socket steel cylinder 221 is composed of two sections. Figure 5 The structure of the socket ring 31 shown is similar, the only difference is that the length of the socket steel cylinder 221 is shorter, and it can be obtained by further processing through the socket ring 32 during actual production and processing.

[0040] Optionally, the socket structure 22 also includes a second reinforcement ring 223 and a third reinforcement ring 224; the single-sided radial cross-section of the second reinforcement ring 223 is L-shaped, one annular surface is vertically fixed on the socket plugging plate 21, and the other annular surface is vertically fixed on the inner side surface of the first barrel section; the single-sided radial cross-section of the third reinforcement ring 224 is L-shaped, one annular surface is vertically fixed on the socket plugging plate 21, and the other annular surface is vertically fixed on the inner side surface of the end of the second barrel section; the inner diameter of the third reinforcement ring 224 is smaller than that of the second reinforcement ring 223.

[0041] The second reinforcement ring 223 and the third reinforcement ring 224 are both annular angle steel structures, which support and reinforce the vertical connection between the socket steel cylinder 221 and the socket plug plate 21 from the inside to improve the structural strength.

[0042] Optionally, the third reinforcing ring 224 and the socket steel cylinder 221 have the same axial dimensions, and both are not less than A, wherein A is the axial overlap dimension when the socket ring 31 and the socket ring 32 of the PCCP pipe 3 to be plugged are inserted and matched, such as Figure 5 shown.

[0043] Optionally, the axial dimensions of the third reinforcement ring 224 and the socket steel cylinder 221 are both A, and a certain manufacturing deviation is allowed.

[0044] Optionally, the bell plugging plate 21 is a circular plate and is coaxially fixedly connected to the socket steel cylinder 221. The diameter of the bell plugging plate 21 is larger than the outer diameter of the PCCP pipe 3 to be plugged.

[0045] Optional, such as Figure 3 and Figure 4As shown, the second rib 23 is a straight plate arranged on the side of the bell plug 21, and the plate surface of the straight plate is perpendicular to the side of the bell plug 21, and is arranged in a grid shape in the horizontal and vertical directions. In addition, a fourth rib 27 is arranged at the outer edge of the side of the bell plug 21 where the second rib 23 is arranged. The fourth rib 27 is annular and sleeved at the outer edge. The second rib 23 and the fourth rib 27 have the same height.

[0046] Take the PCCP pipe 3 to be plugged with an inner diameter of φ1800mm, a plugging working surface diameter of the spigot ring 31 or the socket ring 32 of φ1903mm, and an outer diameter of φ2080mm as an example. The diameter of the spigot plug 11 and the socket plug 21 is φ2100mm, the thickness is 20mm, and they are made of Q235 steel. The first rib 13 and the second rib 23 are both grid-shaped with slats arranged in a crisscross pattern, and the ribs are welded with Q235 steel. The size of A is 160mm, the inner diameter of the third reinforcement ring 224 is φ1800mm, the inner diameter of the socket steel cylinder 121 is φ1903mm, and the maximum outer diameter of the spigot steel cylinder 221 is φ1903mm.

[0047] When in use, when the spigot end of the PCCP pipe 3 to be blocked needs to be blocked, the spigot end plug 1 is selected; the specific operation process is: first align the spigot plug plate 11 with the PCCP pipe 3 to be blocked axially; then gradually push the socket steel cylinder 121 to be sleeved on the spigot ring 31 to complete the plug-in docking. When the socket end of the PCCP pipe 3 to be blocked needs to be blocked, the socket end plug 2 is selected; the specific operation process is: first align the socket plug plate 21 with the PCCP pipe 3 to be blocked axially; then gradually push the socket steel cylinder 221 to be sleeved in the socket ring 32 to complete the plug-in docking.

[0048] In addition, both the plug end plug 1 and the socket end plug 2 use a buttress steel structure retaining wall as the back wall of the jack. The back wall surface should be flat and perpendicular to the pipeline axis.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit its protection scope. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A PCCP pipe hydrostatic test pipe end plug structure, characterized in that: It comprises a plug end plug (1) for plugging the plug end and a socket end plug (2) for plugging the socket end; The spigot end plug (1) comprises a spigot plugging plate (11), a socket structure (12) being arranged on one side surface of the spigot plugging plate (11), the socket structure (12) being adapted to fit with a spigot ring (31) of a PCCP pipe (3) to be plugged, and a first rib plate (13) being arranged on the other side surface of the spigot plugging plate (11); an exhaust hole, a water inlet hole and a water outlet hole are formed on the spigot plugging plate (11), and a first exhaust valve (14), a first water inlet valve (15) and a first water outlet valve (16) are arranged on the corresponding holes; The bell-end plug (2) comprises a bell-end plugging plate (21), one side surface of which is provided with a socket structure (22), the socket structure (22) being used to match with a bell ring (32) of a PCCP pipe (3) to be plugged, and the other side surface of the bell-end plugging plate (21) is provided with a second rib plate (23); the bell-end plugging plate (21) is provided with an exhaust hole, a water inlet hole and a water outlet hole, and a second exhaust valve (24), a second water inlet valve (25) and a second water outlet valve (26) are provided on the corresponding holes.

2. A PCCP pipe hydrostatic test pipe end plug structure according to claim 1, characterized in that: The socket structure (12) comprises a socket steel cylinder (121), the inner side surface of which can be plugged and matched with the socket ring (31) of the PCCP pipe (3) to be blocked; one end of the socket steel cylinder (121) is fixed on the socket plugging plate (11), and the axis of the socket steel cylinder (121) is perpendicular to the socket plugging plate (11); the other end is radially expanded outward to form a bell-mouth shape.

3. A PCCP pipe hydrostatic test pipe end plug structure according to claim 2, characterized in that: The socket structure (12) further comprises a first reinforcement ring (122), the single-sided radial cross section of the first reinforcement ring (122) being L-shaped, one annular surface being vertically fixed on the socket plug (11), and the other annular surface being vertically fixed on the outer surface of the socket steel cylinder (121).

4. A PCCP pipe hydrostatic test pipe end plug structure according to claim 2, characterized in that: The axial dimension of the socket steel cylinder (121) is not less than A, wherein A is the axial overlapping dimension when the spigot ring (31) and the socket ring (32) of the PCCP pipe (3) to be plugged are inserted and matched.

5. A PCCP pipe hydrostatic test pipe end plug structure according to claim 2, characterized in that: The socket plugging plate (11) is a circular plate and is coaxially fixedly connected to the socket steel cylinder (121).

6. The PCCP pipe hydrostatic test pipe end plug structure according to claim 1 is characterized in that: The socket structure (22) comprises a socket steel cylinder (221), the outer surface of which can be plugged and matched with the socket ring (32) of the PCCP pipe (3) to be blocked; one end of the socket steel cylinder (221) is fixed on the socket plugging plate (21), and the axis of the socket steel cylinder (221) is perpendicular to the socket plugging plate (21); an annular groove (222) is provided on the outer surface of the other end, and the annular groove (222) is used to place a sealing member.

7. A PCCP pipe hydrostatic test pipe end plug structure according to claim 6, characterized in that: The socket steel cylinder (221) is composed of a first cylinder section and a second cylinder section, wherein the inner diameter of the first cylinder section is larger than the inner diameter of the second cylinder section, and the outer diameter of the first cylinder section is smaller than the outer diameter of the second cylinder section; one end of the first cylinder section is fixed on the actual socket plugging plate (21); and the annular groove (222) is provided on the outer side surface of the second cylinder section.

8. A PCCP pipe hydrostatic test pipe end plug structure according to claim 7, characterized in that: The socket structure (22) further comprises a second reinforcement ring (223) and a third reinforcement ring (224); the second reinforcement ring (223) has an L-shaped single-sided radial cross-section, one annular surface is vertically fixed on the socket plugging plate (21), and the other annular surface is vertically fixed on the inner side surface of the first barrel section; the third reinforcement ring (224) has an L-shaped single-sided radial cross-section, one annular surface is vertically fixed on the socket plugging plate (21), and the other annular surface is vertically fixed on the inner side surface of the end of the second barrel section; the inner diameter of the third reinforcement ring (224) is smaller than that of the second reinforcement ring (223).

9. A PCCP pipe hydrostatic test pipe end plug structure according to claim 8, characterized in that: The third reinforcement ring (224) and the socket steel cylinder (221) have the same axial dimensions and are not less than A, wherein A is the axial overlapping dimension when the socket ring (31) and the socket ring (32) of the PCCP pipe (3) to be plugged are inserted and matched.

10. A PCCP pipe hydrostatic test pipe end plug structure according to claim 6, characterized in that: The socket plugging plate (21) is a circular plate and is coaxially fixedly connected to the socket steel cylinder (221).

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