CN213985551U - Large-caliber PCCP water delivery pipeline pressure test pipe and pressure line - Google Patents
Large-caliber PCCP water delivery pipeline pressure test pipe and pressure line Download PDFInfo
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- CN213985551U CN213985551U CN202023041162.XU CN202023041162U CN213985551U CN 213985551 U CN213985551 U CN 213985551U CN 202023041162 U CN202023041162 U CN 202023041162U CN 213985551 U CN213985551 U CN 213985551U
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Abstract
The application relates to a pressure measuring pipeline of a PCCP (prestressed concrete cylinder pipe) pipeline, in particular to a pressure testing pipe and a pressure line of a large-caliber PCCP water pipeline; it comprises two butt joint shell sections; a plugging plate is fixed in the middle section of the inner part of the butt joint shell ring in a sealing way and is arranged along the radial direction of the butt joint shell ring; the ports of the two butt joint shell sections are hermetically connected through welding; and a sealing cavity is formed between the two butting shell sections and the two plugging plates. Due to the implementation of the technical scheme, the butt joint cylindrical shell sections with the plugging plates are sequentially installed in the pipeline in the form of PCCP pipe fittings, thrust pipe sections (a plurality of sections of PCCP) are continuously installed to play a thrust stopping role, thrust blocking piers do not need to be manufactured at two ends of the pipe section to be tested independently, a pressing section is formed between the two butt joint cylindrical shell sections, after the pressure test is qualified, the plugging plates are cut off, the pipeline is kept to be communicated, the construction cost is saved, and the installation degree of advance is not influenced.
Description
Technical Field
The application relates to a pressure measuring pipeline of a PCCP (prestressed concrete cylinder pipe) pipeline, in particular to a pressure testing pipe and a pressing line of a large-caliber PCCP water conveying pipeline.
Background
After the installation of the large-caliber long-distance PCCP water conveying pipeline is finished, a sectional pressing test is required to be carried out for checking the installation quality of the pipeline and ensuring the safety and reliability of the operation of the pipeline when the pipeline is in formal water supply.
According to the traditional method, the plugs are additionally arranged at two ends of the pipeline pressing section, and the concrete anchor blocks are poured to serve as the thrust walls.
Therefore, the manufacturing method of the pressing pipe which is matched with the PCCP and is directly installed is provided, the pressing pipe is directly and sequentially installed in the pipeline, continuous installation of the pipeline is not affected, and the problems of long construction period and high cost are effectively solved.
Disclosure of Invention
The application aims to provide a large-caliber PCCP water conveying pipeline pressure testing pipe and a pressure pressing line which do not affect the follow-up installation of pipelines, shorten the construction period and reduce the cost.
One of the technical solutions of the present application is implemented as follows: the large-caliber PCCP water conveying pipeline pressure testing pipe comprises two butt joint cylindrical sections; a plugging plate is fixed in the middle section of the inner part of the butt joint shell ring in a sealing way and is arranged along the radial direction of the butt joint shell ring; the ports of the two butt joint shell sections are hermetically connected through welding; and a sealing cavity is formed between the two butting shell sections and the two plugging plates.
Furthermore, reinforcing ribs are arranged on the left side and the right side of the plugging plate; the reinforcing ribs are arranged in a continuous # -shaped manner.
Furthermore, the upper part of the butt joint cylindrical shell section is provided with a water inlet and an exhaust port, and the lower part of the butt joint cylindrical shell section is provided with a water outlet; the distance between the water inlet, the air outlet and the water outlet and the connecting weld joint between the two butted cylinder sections is not more than fifteen centimeters.
The second technical scheme of the application is realized as follows: a large-diameter PCCP (prestressed concrete cylinder pipe) water conveying pipeline pressing line comprises a pipe section to be tested, a butt joint barrel section and a thrust pipe section; a plugging plate is fixed in the middle section of the interior of the butt joint shell ring in a sealing mode, the plugging plate is arranged along the radial direction of the butt joint shell ring, and a bellmouth steel ring and a socket steel ring are respectively installed at two ports of the butt joint shell ring; the two end ports of the pipe section to be tested are respectively connected with a butt joint cylindrical shell section; the outer end ports of the two butt joint shell rings are connected with a thrust pipe section.
Furthermore, the upper parts of the cylinder walls of the butt joint cylinder sections corresponding to the two sides of the sealing plate are provided with manhole holes.
Due to the implementation of the technical scheme, the butt joint cylindrical shell sections with the plugging plates are sequentially installed in the pipeline in the form of PCCP pipe fittings, thrust pipe sections (a plurality of sections of PCCP) are continuously installed to play a thrust stopping role, thrust blocking piers do not need to be manufactured at two ends of the pipe section to be tested independently, a pressing section is formed between the two butt joint cylindrical shell sections, after the pressure test is qualified, the plugging plates are cut off, the pipeline is kept to be communicated, the construction cost is saved, and the installation degree of advance is not influenced.
Drawings
The specific structure of the application is given by the following figures and examples:
FIG. 1 is a schematic structural diagram of embodiment 1 of the present application;
FIG. 2 is a schematic structural view of a plugging plate in example 1 of the present application;
FIG. 3 is a schematic view showing the structure of a water inlet, an air outlet and a water outlet in example 1 of the present application;
FIG. 4 is a schematic structural diagram of a butt joint cylindrical shell in embodiment 2 of the present application;
fig. 5 is a schematic structural diagram of embodiment 2 of the present application.
Legend: 1. butt joint shell ring, 2, plugging plate, 3, sealing cavity, 4, reinforcing rib, 5, water inlet, 6, gas outlet, 7, water outlet, 8, pipe section to be tested, 9, thrust pipe section, 10 bellmouth steel ring, 11, socket steel ring, 12, manhole.
Detailed Description
The present application is not limited to the following examples, and specific implementations may be determined according to the technical solutions and practical situations of the present application.
Example 1, as shown in fig. 1 to 3, the large-caliber PCCP water pipeline pressure test tube comprises two butt joint cylindrical sections; a plugging plate is fixed in the middle section of the inner part of the butt joint shell ring in a sealing way and is arranged along the radial direction of the butt joint shell ring; the ports of the two butt joint shell sections are hermetically connected through welding; and a sealing cavity is formed between the two butting shell sections and the two plugging plates.
When in manufacturing, a steel plate is used for rolling and welding into a cylinder, and a welding seam is qualified through nondestructive testing; manufacturing a circular plugging plate and welding the circular plugging plate to the middle position in the cylinder, and welding reinforcing ribs on two sides of the plugging plate for reinforcement to finish the manufacture of the butt joint cylinder section; two are made. And (3) assembling and welding the two butt-joint shell sections, wherein the welding seam is qualified through nondestructive testing, and a sealing cavity is formed between the two plugging plates and the shell.
Thus, two required butt joint cylindrical sections can be formed at one time, and a pressing test can be completed at one time; the time is saved for pressing the line for subsequent team formation, and the construction period is shortened.
As shown in fig. 1 to 3, reinforcing ribs are provided on both the left and right sides of the plugging plate; the reinforcing ribs are arranged in a continuous # -shaped manner.
As shown in fig. 1 to 3, the upper part of the butt joint cylindrical shell is provided with a water inlet and an air outlet, and the lower part of the butt joint cylindrical shell is provided with a water outlet; the distance between the water inlet, the air outlet and the water outlet and the connecting weld joint between the two butted cylinder sections is not more than fifteen centimeters.
Carrying out a compression test on the sealed cavity, and checking whether the plugging plate meets the design requirements; firstly, opening an exhaust port, closing a water outlet, injecting water through a water inlet, stopping injecting water when water flows out from the exhaust port at the upper part, closing the exhaust port, and filling the water fully; the water inlet is connected with a pressurizing pump, and the test pressure is the working pressure P +0.5 MPa; and (5) checking whether the welding seam of the cylinder body, the circular plugging plate have no water seepage and swell phenomena to be qualified, and removing the pressurizing system.
Cutting off the pressure test pipe of the large-caliber PCCP water delivery pipeline after the pressure test in the embodiment 1 along the circular seam of the two butt joint cylindrical sections to obtain two independent butt joint cylindrical sections, wherein a bell mouth steel ring and a socket steel ring are respectively arranged at two ports of each butt joint cylindrical section to form two pressure test pipes and two pressure test pipes with plugging plates; the two pressing pipes are respectively installed at two ends of the pipe section to be tested, and a plurality of sections of PCCP pipes are continuously installed at the outer ends of the pressing pipes to form thrust pipe sections which play a thrust stopping role, so that thrust piers do not need to be additionally manufactured on the whole pipeline; and (3) injecting water into the pipe section to be tested in a construction site, soaking for 24 hours, performing a site pressure test, opening the manhole flange plate after the pressure test is qualified, cutting the plugging plate, taking out the plugging plate, keeping the pipeline through, and installing the flange plate again to prepare for subsequent formal water passing. The pipe section to be tested is connected with the butt joint cylindrical shell section in a matching way through a bell and spigot; the butt joint shell ring is connected with the thrust pipe section through bell and spigot matching.
As shown in fig. 4 and 5, the upper parts of the cylinder walls of the abutting cylinder sections corresponding to the two sides of the sealing plate are respectively provided with a manhole.
The large-diameter PCCP water pipeline pressure test pipe in the embodiment 1 can be detached to obtain the pressurizing pipe, can be directly installed in the PCCP pipeline in a PCCP accessory pipe mode for use, does not influence the continuous installation of the PCCP pipe after the installation is finished, and does not need to be pulled out and replaced after a hydraulic test is qualified.
This application has avoided suppressing the preparation period stop installation and has made the thrust anchor alone, suppresses to demolish the anchor after finishing, has saved construction cost, advances the degree to the installation and does not have the influence.
The application effect is better, is applicable to the pipeline of other materials and suppresses, and application scope is wider.
In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate relative positional relationships between relevant portions, and do not limit absolute positions of the relevant portions.
The technical characteristics form the embodiment of the application, the embodiment has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the needs of different situations.
Claims (5)
1. The utility model provides a large-diameter PCCP hydraulic line pressure test pipe which characterized in that: comprises two butt joint shell sections; a plugging plate is fixed in the middle section of the inner part of the butt joint shell ring in a sealing way and is arranged along the radial direction of the butt joint shell ring; the ports of the two butt joint shell sections are hermetically connected through welding; and a sealing cavity is formed between the two butting shell sections and the two plugging plates.
2. The large-caliber PCCP hydraulic pipeline pressure test tube according to claim 1, characterized in that: reinforcing ribs are arranged on the left side and the right side of the plugging plate; the reinforcing ribs are arranged in a continuous # -shaped manner.
3. The large-caliber PCCP hydraulic pipeline pressure test tube according to claim 1 or 2, characterized in that: the upper part of the butt joint cylindrical shell is provided with a water inlet and an exhaust port, and the lower part of the butt joint cylindrical shell is provided with a water outlet; the distance between the water inlet, the air outlet and the water outlet and the connecting weld joint between the two butted cylinder sections is not more than fifteen centimeters.
4. The utility model provides a line is suppressed to heavy-calibre PCCP raceway, its characterized in that: comprises a pipe section to be tested, a butt joint cylindrical shell and a thrust pipe section; a plugging plate is fixed in the middle section of the interior of the butt joint shell ring in a sealing mode, the plugging plate is arranged along the radial direction of the butt joint shell ring, and a bellmouth steel ring and a socket steel ring are respectively installed at two ports of the butt joint shell ring; the two end ports of the pipe section to be tested are respectively connected with a butt joint cylindrical shell section; the outer end ports of the two butt joint shell rings are connected with a thrust pipe section.
5. The large-caliber PCCP hydraulic pipeline crimping line according to claim 4, characterized in that: the upper parts of the cylinder walls of the butt joint cylinder sections corresponding to the two sides of the sealing plate are provided with manhole holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023041162.XU CN213985551U (en) | 2020-12-17 | 2020-12-17 | Large-caliber PCCP water delivery pipeline pressure test pipe and pressure line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023041162.XU CN213985551U (en) | 2020-12-17 | 2020-12-17 | Large-caliber PCCP water delivery pipeline pressure test pipe and pressure line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213985551U true CN213985551U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023041162.XU Active CN213985551U (en) | 2020-12-17 | 2020-12-17 | Large-caliber PCCP water delivery pipeline pressure test pipe and pressure line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213985551U (en) |
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- 2020-12-17 CN CN202023041162.XU patent/CN213985551U/en active Active
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