Hydraulic pressure test device for PCCP (prestressed concrete cylinder pipe)

Abstract

The utility model discloses a PCCP (prestressed concrete cylinder pipe) hydraulic pressure test device, which comprises a first barrel, a second barrel, a third barrel and a fourth barrel, one end of the first barrel extends outwards to form an annular plate, and the annular plate is provided with a water inlet and an exhaust port; the second barrel is telescopically connected with the other end of the first barrel; the first air bag is arranged on the outer side of the annular plate, and the second air bag is arranged at the other end of the second barrel body. According to the utility model, the water consumption can be reduced, and the water pressure test on any section of pipeline can be conveniently realized.

Description

Technical Field

[0001] The utility model relates to the technical field related to PCCP pipelines, and more specifically, to a PCCP pipeline water pressure test device. Background Art

[0002] PCCP (prestressed concrete cylinder pipe) is a composite structure composed of steel plates, concrete, high-strength steel wire and cement mortar. It has the characteristics of steel and concrete, and has excellent characteristics such as high internal and external pressure, strong earthquake resistance, fast construction and convenient maintenance. PCCP needs to be tested for water pressure before use, but the existing water pressure test device consumes a lot of water, and it is difficult to achieve water pressure test on any section of PCCP pipe, such as the invention patent with application number 2018112730925. Therefore, it is necessary to design a technical solution that can overcome the above defects. Utility Model Content

[0003] One purpose of the utility model is to provide a PCCP pipeline water pressure test device, which can reduce water consumption and facilitate the water pressure test of any section of the pipeline.

[0004] In order to achieve these purposes and other advantages of the utility model, according to one aspect of the utility model, a PCCP pipeline water pressure testing device is provided, including: a first cylinder, one end of which extends outward to form an annular plate, and the annular plate is provided with a water inlet and an exhaust port; a second cylinder, which is telescopically connected to the other end of the first cylinder; a first airbag and a second airbag, the first airbag is arranged on the outside of the annular plate, and the second airbag is arranged at the other end of the second cylinder.

[0005] Furthermore, it also includes: an air pump, which is connected to the first airbag and the second airbag through an air tube and is used to inflate the first airbag and the second airbag.

[0006] Furthermore, it also includes: a water storage tank, which is connected with the water inlet through a water pipe, and the water pipe is provided with a water pump and a pressure gauge.

[0007] Furthermore, the other end of the first cylinder is sleeved outside the second cylinder at a distance, and the other end of the first cylinder is also provided with an annular flange facing inward, and a sealing ring is provided in the gap surrounded by the first cylinder and the second cylinder in close contact with the annular flange.

[0008] Furthermore, the first airbag and the second airbag are both annular and are respectively arranged on the outside of the annular plate and the outside of the other end of the second cylinder.

[0009] Furthermore, the water inlet and the exhaust port are located on both sides of the center of the annular plate.

[0010] According to another aspect of the utility model, the utility model also provides a PCCP pipeline water pressure testing device, including: a first cylinder, one end of which extends outward to form an annular plate, the annular plate is provided with a water inlet and an exhaust port, and the water inlet and the exhaust port are separated on both sides of the center of the annular plate; a second cylinder, one end of which is sleeved in the first cylinder at an interval, the other end of the first cylinder is also provided with an inward annular flange, and a sealing ring is provided in the gap surrounded by the first cylinder and the second cylinder tightly against the annular flange; a first airbag and a second airbag, the first airbag is provided on the outside of the annular plate, and the second airbag is provided at the other end of the second cylinder; an air pump, which is connected to the first airbag and the second airbag through an air pipe, and is used to inflate the first airbag and the second airbag; a water storage tank, which is connected to the water inlet through a water pipe, and the water pipe is provided with a water pump and a pressure gauge.

[0011] The utility model at least has the following beneficial effects:

[0012] The utility model comprises a first cylinder, a second cylinder, a first airbag and a second airbag, one end of the first cylinder extends outward to form an annular plate, the annular plate is provided with a water inlet and an exhaust port, the second cylinder is telescopically connected to the other end of the first cylinder, the first airbag is arranged on the outside of the annular plate, and the second airbag is arranged at the other end of the second cylinder; during the test process, the first cylinder and the second cylinder are located inside the PCCP pipeline, and form a water-containing space with the PCCP pipeline, thereby reducing water consumption, the first airbag and the second airbag are used to close the two ends of the water-containing space, and the first cylinder and the second cylinder are telescopic, so as to adapt to any section required for the test and further reduce water consumption.

[0013] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A cross-sectional view of an embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0017] It should be understood that the terms such as "having", "including" and "comprising" used in the embodiments of the present application do not exclude the existence or addition of one or more other elements or their combinations. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication also changes accordingly. When an element is referred to as "fixed on" or "set on" another element, it can be directly on another element or there may be a centering element at the same time. When an element is referred to as "connecting" another element, it can be directly connected to another element or it can also be indirectly connected to another element through a centering element. The description of the embodiments of the present application involving "first", "second", etc. is only for descriptive purposes, and cannot be understood as indicating or implying its relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features.

[0018] It should be noted that the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0019] like Figure 1 , 2 As shown, an embodiment of the present application provides a PCCP pipeline water pressure testing device, including: a first cylinder 2, one end of which extends outward to form an annular plate 4, and the annular plate 4 is provided with a water inlet 7 and an exhaust port 8; a second cylinder 3, which is telescopically connected to the other end of the first cylinder 2; a first airbag 5 and a second airbag 6, the first airbag 5 is arranged on the outside of the annular plate 4, and the second airbag 6 is arranged at the other end of the second cylinder 3.

[0020] During the test, the first cylinder 2 and the second cylinder 3 are placed inside the PCCP pipe 1, and the first cylinder 2 and the second cylinder 3 are extended and retracted to correspond to the section that needs to be tested. At this time, the outer walls of the first cylinder 2 and the second cylinder 3 and the PCCP pipe 1 form a water-containing space, and the first airbag 5 and the second airbag 6 seal the two ends of the water-containing space. Water is injected into the water-containing space through the water inlet 7 until the water flows out from the exhaust port 8. Then the exhaust port 8 is closed, and the pressure is continuously increased to the test pressure. The pressure is stabilized for a certain period of time to complete the water pressure test.

[0021] Exemplarily, the first cylinder 2 and the second cylinder 3 are both made of steel or other materials that can withstand higher pressure.

[0022] Exemplarily, the first cylinder 2 and the second cylinder 3 are spaced 30-40 cm apart from the PCCP pipe 1 to minimize the volume of the water-containing space and also reduce the inflation time of the first airbag 5 and the second airbag 6.

[0023] Exemplarily, the width of the annular plate 4 is sufficient to facilitate the arrangement of the water inlet 7 and the exhaust port 8 . The water inlet 7 is used for water injection, and the exhaust port 8 is used for exhausting air during the water injection process.

[0024] Exemplarily, the volume of the first airbag 5 and the second airbag 6 after being inflated can squeeze the inner wall of the PCCP pipe 1, thereby closing both ends of the water-containing space.

[0025] Exemplarily, the first cylinder 2 and the second cylinder 3 are retractable by plugging, and the connection part has a necessary sealing structure.

[0026] The first cylinder 2 and the second cylinder 3 of this embodiment enclose a water-containing space with the PCCP pipe 1. Compared with directly injecting water into the entire PCCP pipe 1, the water consumption is greatly reduced. The first cylinder 2 and the second cylinder 3 are retractable to adapt to any section required for testing, further reducing the water consumption.

[0027] In another embodiment, it further includes: an air pump connected to the first airbag 5 and the second airbag 6 through an air pipe, and used for inflating the first airbag 5 and the second airbag 6 to close the two ends of the water-containing space.

[0028] In another embodiment, it further comprises: a water storage tank 11, which is connected to the water inlet 7 through a water pipe, and the water pipe is provided with a water pump 9 and a pressure gauge 10, and the water pressure gauge is used to detect the water pressure.

[0029] Exemplarily, the number of water pumps 9 can be selected to be 2 or more to quickly increase the water injection speed and water pressure.

[0030] In another embodiment, the other end of the first cylinder 2 is sleeved outside the second cylinder 3 at an interval, and the other end of the first cylinder 2 is also provided with an annular flange 201 facing inward, and a sealing ring 202 is provided in the gap surrounded by the first cylinder 2 and the second cylinder 3 and close to the annular flange 201.

[0031] Illustratively, two annular flanges 201 are formed at an interval at the other end of the first cylinder 2, and sealing rings 202 are arranged inside the two annular flanges 201. During use, the sealing rings 202 squeeze the two annular flanges 201 and the inner wall of the first cylinder 2 and the outer wall of the second cylinder 3 to improve the sealing performance.

[0032] In another embodiment, the first airbag 5 and the second airbag 6 are both annular and are respectively arranged on the outside of the annular plate 4 and the outside of the other end of the second cylinder 3. The annular airbags can expand evenly to improve the fit with the inner wall of the PCCP pipe 1.

[0033] In another embodiment, the water inlet 7 and the exhaust port 8 are located on both sides of the center of the annular plate 4. Exemplarily, the exhaust port 8 is located above the water inlet 7 to fully improve the exhaust effect.

[0034] The embodiment of the utility model also provides a PCCP pipeline water pressure test device, including: a first cylinder 2, one end of which extends outward to form an annular plate 4, the annular plate 4 is provided with a water inlet 7 and an exhaust port 8, and the water inlet 7 and the exhaust port 8 are located on both sides of the center of the annular plate 4; a second cylinder 3, one end of which is sleeved in the first cylinder 2 at an interval, the other end of the first cylinder 2 is also provided with an inward annular flange 201, and a sealing ring 202 is provided in the gap surrounded by the first cylinder 2 and the second cylinder 3, close to the annular flange 201; a first airbag 5 and a second airbag 6, the first airbag 5 is provided on the outside of the annular plate 4, and the second airbag 6 is provided at the other end of the second cylinder 3; an air pump, which is connected to the first airbag 5 and the second airbag 6 through an air pipe and is used to inflate the first airbag 5 and the second airbag 6; a water storage tank 11, which is connected to the water inlet 7 through a water pipe, and a water pump 9 and a pressure gauge 10 are provided on the water pipe.

[0035] During the test, the first cylinder 2 and the second cylinder 3 are placed inside the PCCP pipe 1, and the first cylinder 2 and the second cylinder 3 are extended and retracted to correspond to the section that needs to be tested. At this time, the outer walls of the first cylinder 2 and the second cylinder 3 and the PCCP pipe 1 form a water-containing space, and the first airbag 5 and the second airbag 6 are inflated by an air pump until the first airbag 5 and the second airbag 6 close the two ends of the water-containing space. The water pump 9 is used to inject water into the water-containing space through the water inlet 7 until the water flows out from the exhaust port 8, and then the exhaust port 8 is closed, and the pressure is continued to be increased to the test pressure, and the pressure is stabilized for a certain period of time to complete the water pressure test. The first cylinder 2 and the second cylinder 3 of this embodiment form a water-containing space with the PCCP pipe 1. Compared with directly injecting water into the entire PCCP pipe 1, the water consumption is greatly reduced. The first cylinder 2 and the second cylinder 3 can be extended and retracted to adapt to any section that needs to be tested, further reducing the water consumption.

[0036] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. PCCP pipeline water pressure test device, characterized in that: include: A first cylinder, one end of which extends outward to form an annular plate, and the annular plate is provided with a water inlet and an exhaust port; A second cylinder, which is telescopically connected to the other end of the first cylinder; A first airbag and a second airbag, wherein the first airbag is arranged at the outer side of the annular plate, and the second airbag is arranged at the other end of the second cylinder.

2. The PCCP pipeline water pressure testing device according to claim 1, characterized in that: Also includes: An air pump is connected to the first airbag and the second airbag through an air tube, and is used to inflate the first airbag and the second airbag.

3. The PCCP pipeline water pressure testing device according to claim 1, characterized in that: Also includes: A water storage tank is connected to the water inlet through a water delivery pipe, and a water pump and a pressure gauge are provided on the water delivery pipe.

4. The PCCP pipeline water pressure testing device according to claim 1, characterized in that: The other end of the first cylinder is sleeved outside the second cylinder at a distance, and the other end of the first cylinder is also provided with an annular flange facing inward, and a sealing ring is provided in the gap surrounded by the first cylinder and the second cylinder in close contact with the annular flange.

5. The PCCP pipeline water pressure testing device according to claim 1, characterized in that: The first airbag and the second airbag are both annular and are respectively arranged on the outside of the annular plate and the outside of the other end of the second cylinder.

6. The PCCP pipeline water pressure testing device according to claim 1, characterized in that: The water inlet and the exhaust port are located on both sides of the center of the annular plate. 7.PCCP pipeline water pressure test device, characterized in that: include: A first cylinder, one end of which extends outward to form an annular plate, wherein the annular plate is provided with a water inlet and an exhaust port, and the water inlet and the exhaust port are located on both sides of the center of the annular plate; A second cylinder, one end of which is sleeved in the first cylinder at a distance, the other end of the first cylinder is also provided with an annular flange facing inward, and a sealing ring is provided in the gap surrounded by the first cylinder and the second cylinder and close to the annular flange; a first airbag and a second airbag, wherein the first airbag is arranged outside the annular plate, and the second airbag is arranged at the other end of the second cylinder; an air pump connected to the first airbag and the second airbag through an air tube, and used for inflating the first airbag and the second airbag; A water storage tank is connected to the water inlet through a water delivery pipe, and a water pump and a pressure gauge are provided on the water delivery pipe.

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