A pipe pressurization, depressurization and drainage integrated device

Abstract

This utility model discloses an integrated device for pressurizing, depressurizing, and draining pipelines, comprising a main depressurizing pipe and a pressurizing branch pipe. One end of the main depressurizing pipe is equipped with a connector, which connects the main depressurizing pipe to the pipeline to be drained. The other end of the main depressurizing pipe is a drain outlet, and a first control valve is installed on the main depressurizing pipe to control the opening and closing of the drain outlet. One end of the pressurizing branch pipe is equipped with an air inlet, which connects the pressurizing branch pipe to an air supply device. The other end of the pressurizing branch pipe is connected to the main depressurizing pipe, and a second control valve is installed on the pressurizing branch pipe to control the opening and closing of the air inlet. A pressure measuring branch pipe is connected to the pressurizing branch pipe, and a pressure gauge is installed on the end of the pressure measuring branch pipe furthest from the pressurizing branch pipe. A third control valve is installed on the pressurizing branch pipe, located between the pressure measuring branch pipe and the main depressurizing pipe, and controls the connection and disconnection between the two. This utility model conveniently solves the problem of water blockage in pipelines.

Description

Technical Field

[0001] This utility model relates to the field of pipeline drainage technology, and in particular to an integrated device for pipeline pressurization, pressure relief and drainage. Background Technology

[0002] If a user incorrectly installs a water heater and reverses the water and gas pipes, a large amount of tap water will enter the gas pipeline, clogging the underground pipe network. Traditional drainage methods involve excavation and pipe cutting, which are costly in terms of labor, pipe materials, and equipment rental. Moreover, traditional methods require long maintenance times, causing users to be unable to use gas normally for an extended period. Therefore, a new pipeline drainage device is needed. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an integrated device for pressurizing, depressurizing and draining pipelines to solve the problem of water blockage in pipelines.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a pipeline pressurization, pressure relief, and drainage integrated device, comprising a pressure relief main pipe and a pressurization branch pipe; one end of the pressure relief main pipe is provided with a connector, and the pressure relief main pipe is connected to the pipeline to be drained through the connector; the other end of the pressure relief main pipe is a drain outlet, and a first control valve is provided on the pressure relief main pipe, the first control valve controlling the opening and closing of the drain outlet; one end of the pressurization branch pipe is provided with an air inlet, and the pressurization branch pipe is connected to an air supply device through the air inlet; the other end of the pressurization branch pipe is connected to the pressure relief main pipe, and a second control valve is provided on the pressurization branch pipe, the second control valve controlling the opening and closing of the air inlet.

[0005] Furthermore, a pressure measuring branch is connected to the pressurizing branch, and a pressure gauge is installed at the end of the pressure measuring branch away from the pressurizing branch. The pressure gauge can detect the pressure when the pressurizing branch is pressurized.

[0006] Furthermore, a third control valve is provided on the pressurized branch pipe. The third control valve is located between the pressure measuring branch pipe and the pressure relief main pipe, and controls the opening and closing of the pressure measuring branch pipe and the pressure relief main pipe.

[0007] Furthermore, the main pressure relief pipe is a straight pipe, and the connector and the pressurizing branch pipe are located on opposite sides of the main pressure relief pipe, and the main pressure relief pipe, the pressurizing branch pipe and the pressure measuring branch pipe are located in the same plane.

[0008] Furthermore, the connecting component is a connecting flange.

[0009] Furthermore, a rotating cylinder is fitted onto the main pressure relief pipe, which is located between the pressurized branch pipe and the drain outlet; a support rod is connected to the rotating cylinder, and a limit slot is provided on one end of the rotating cylinder facing the pressurized branch pipe; the pressurized branch pipe is vertically connected to the main pressure relief pipe, and when the pressurized branch pipe is engaged with the limit slot, the support rod is limited to the opposite side of the pressurized branch pipe, and the support rod and the pressurized branch pipe are on the same straight line.

[0010] Furthermore, the end of the rotating drum facing the pressurized branch pipe is also provided with a receiving slot. When the pressurized branch pipe is inserted into the receiving slot, the support rod is limited to the same side of the pressurized branch pipe, and the support rod and the pressurized branch pipe are parallel to each other.

[0011] Beneficial effects: The beneficial effects of this utility model's integrated pipeline pressurization, pressure relief, and drainage device are as follows:

[0012] 1) After connecting the pressure relief main pipe to the pipe where water blockage has occurred, the water in the pipe can be discharged by pressurizing and depressurizing, without having to carry out large-scale and difficult construction work such as excavation and pipe cutting, thus improving maintenance efficiency.

[0013] 2) A rotating drum is fitted onto the pressure relief main pipe, and a support rod is connected to the rotating drum. The support rod can provide support to the pressure relief main pipe and maintain stability; the support rod can rotate with the rotating drum, making it convenient to store and carry. Attached Figure Description

[0014] Appendix Figure 1 A schematic diagram showing the connection between the pressure relief main pipe and the gas pipeline where water blockage has occurred;

[0015] Appendix Figure 2 This is a schematic diagram showing the support rod being confined to the opposite side of the pressurized branch pipe.

[0016] Appendix Figure 3 This is a schematic diagram showing the support rod being confined to the same side as the pressurized branch pipe. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] As attached Figures 1 to 3 The aforementioned integrated pipeline pressurization, pressure relief, and drainage device includes a pressure relief main pipe 1 and a pressurization branch pipe 2 connected to each other. A connector is provided at one end of the pressure relief main pipe 1, and the pressure relief main pipe 1 is connected to the pipeline to be drained via the connector. (See attached diagram) Figure 2 and 3 As shown, the connector is a connecting flange 10. (See attached image) Figure 1As shown, a connecting flange 10 is also present at the T-junction of the gas pipeline 15, allowing the pressure relief main pipe 1 to connect to the gas pipeline 15 where water blockage has occurred via the connecting flange 10. The other end of the pressure relief main pipe 1 is a drain outlet 3. During pressure relief, gas carrying water vapor is ejected from the drain outlet 3, thus clearing the accumulated water from the gas pipeline 15. A first control valve 4 is installed on the pressure relief main pipe 1, controlling the opening and closing of the drain outlet 3. When pressurizing the gas pipeline 15, the drain outlet 3 is closed via the first control valve 4; when depressurizing the gas pipeline 15, the drain outlet 3 is opened via the first control valve 4.

[0019] An air inlet 5 is provided at one end of the pressurizing branch pipe 2, and the pressurizing branch pipe 2 is connected to the gas supply equipment through the air inlet 5. In the event of water blockage in the gas pipeline 15, an inert gas, such as nitrogen, should be used for pressurization to improve safety and prevent explosion. The other end of the pressurizing branch pipe 2 is connected to the pressure relief main pipe 1, and the pressurizing branch pipe 2 and the pressure relief main pipe 1 are interconnected. A second control valve 6 is provided on the pressurizing branch pipe 2, and the second control valve 6 controls the opening and closing of the air inlet 5. When pressurizing the gas pipeline 15, the air inlet 5 is opened through the second control valve 6. When depressurizing the gas pipeline 15, the air inlet 5 is closed through the second control valve 6.

[0020] A pressure measuring branch pipe 7 is connected to the pressurizing branch pipe 2. A pressure gauge 8 is installed at the end of the pressure measuring branch pipe 7 away from the pressurizing branch pipe 2. The pressure gauge 8 can detect the pressure when the pressurizing branch pipe 2 is pressurized. The pressure gauge 8 monitors the pressure in the pipeline in real time. Through the data of the pressure gauge 8, it is possible to accurately determine when a drainage operation is needed to ensure that the water accumulated in the gas pipeline 15 can be effectively removed.

[0021] A third control valve 9 is also installed on the pressurizing branch pipe 2. The third control valve 9 is located between the pressure measuring branch pipe 7 and the pressure relief main pipe 1. The third control valve 9 controls the opening and closing of the pressure measuring branch pipe 7 and the pressure relief main pipe 1. When depressurizing, the third control valve 9 is closed to prevent high-pressure gas from carrying water vapor into the pressure gauge 8.

[0022] As attached Figure 1 and 2 As shown, the main pressure relief pipe 1 is a straight pipe. The connecting flange 10 and the pressurizing branch pipe 2 are located on opposite sides of the main pressure relief pipe 1. When the downward-facing connecting flange 10 is connected to the T-shaped pipe of the gas pipeline 15, the pressurizing branch pipe 2 is located above the main pressure relief pipe 1, which facilitates connection to pressurizing equipment and also makes it easy to observe the reading of the pressure gauge 8. The main pressure relief pipe 1, the pressurizing branch pipe 2, and the pressure measuring branch pipe 7 are all located in the same plane, making them easy to carry.

[0023] When one end of the pressure relief main pipe 1 is connected to the gas pipeline 15 via the connecting flange 10, the other end of the pressure relief main pipe 1 lacks support, resulting in poor structural stability. Therefore, a rotating cylinder 11 is fitted onto the pressure relief main pipe 1, and the rotating cylinder 11 slides with the pressure relief main pipe 1, with the rotating cylinder 11 located between the pressurized branch pipe 2 and the drain outlet 3. A support rod 12 is connected to the rotating cylinder 11, and the support rod 12 is perpendicular to the pressure relief main pipe 1. A limit slot 13 is provided on the end of the rotating cylinder 11 facing the pressurized branch pipe 2, and the width of the limit slot 13 is approximately equal to the outer diameter of the pressurized branch pipe 2. The pressurized branch pipe 2 is perpendicularly connected to the pressure relief main pipe 1. When the rotating cylinder 11 slides towards the pressurized branch pipe 2, the pressurized branch pipe 2 can be engaged into the limit slot 13. At this time, as shown in the attached... Figure 1 As shown, the support rod 12 is positioned on the opposite side of the pressurized branch pipe 2, meaning that the support rod 12 and the pressurized branch pipe 2 are located on opposite sides of the pressure relief main pipe 1, and the support rod 12 and the pressurized branch pipe 2 are on the same straight line. Therefore, the support rod 12 can provide support for the pressure relief main pipe 1, making the structure more stable when the pressure relief main pipe 1 is connected to the gas pipeline 15 via the connecting flange 10.

[0024] A receiving slot 14 is also provided on the end of the rotating drum 11 facing the pressurized branch pipe 2. As the rotating drum 11 rotates, the support rod 12 can be rotated to the same side as the pressurized branch pipe 2. At this time, by sliding the rotating drum 11 toward the pressurized branch pipe 2, the pressurized branch pipe 2 can be inserted into the receiving slot 14. That is, as shown in the attached figure. Figure 2 As shown, the support rod 12 is limited to the same side of the pressurized branch pipe 2, and the support rod 12 and the pressurized branch pipe 2 are parallel to each other, making the whole device occupy less space and easier to carry.

[0025] In addition, since the height of the T-junction of the gas pipeline 15 may vary, the support rod 12 is telescopically adjustable to ensure that the bottom of the support rod 12 can contact the ground.

[0026] The working principle of this utility model is as follows: When a water blockage occurs in the gas pipeline 15, first locate the water accumulation point, then close the upstream and downstream shut-off valves of that section of the gas pipeline 15 to isolate the pipeline. Next, connect the pressure relief main pipe 1 to that section of the pipeline via the connecting flange 10. Then connect the gas supply equipment to the gas inlet 5, close the first control valve 4, and open the second control valve 6 and the third control valve 9 to pressurize the pipeline with inert gas. Monitor the pressure in the pipeline using the pressure gauge 8. After pressurization, close the second control valve 6 and the third control valve 9, and open the third control valve 9 to begin depressurization. The high-pressure gas will carry the water vapor from the pipeline out, thus clearing the water accumulation in the gas pipeline 15. Repeat the pressurization and depressurization process several times to remove the water accumulation in the gas pipeline 15. Afterward, inert gas is introduced again to replace the water and restore the gas pipeline 15 to dryness.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pipeline pressurization, pressure relief, and drainage integrated device, characterized by: It includes a pressure relief main pipe (1) and a pressurizing branch pipe (2); one end of the pressure relief main pipe (1) is provided with a connector, and the pressure relief main pipe (1) is connected to the pipe to be drained through the connector; the other end of the pressure relief main pipe (1) is a drain outlet (3), and a first control valve (4) is provided on the pressure relief main pipe (1), which controls the opening and closing of the drain outlet (3); one end of the pressurizing branch pipe (2) is provided with an air inlet (5), and the pressurizing branch pipe (2) is connected to the air supply equipment through the air inlet (5); the other end of the pressurizing branch pipe (2) is connected to the pressure relief main pipe (1), and a second control valve (6) is provided on the pressurizing branch pipe (2), which controls the opening and closing of the air inlet (5).

2. The integrated pressurized and gravity drainage device of claim 1, wherein: The pressurizing branch pipe (2) is connected to a pressure measuring branch pipe (7). A pressure gauge (8) is installed on the end of the pressure measuring branch pipe (7) away from the pressurizing branch pipe (2). The pressure gauge (8) can detect the pressure when the pressurizing branch pipe (2) is pressurized.

3. The integrated pressurized and gravity drainage device of claim 2, wherein: The pressurized branch pipe (2) is equipped with a third control valve (9), which is located between the pressure measuring branch pipe (7) and the pressure relief main pipe (1). The third control valve (9) controls the opening and closing of the pressure measuring branch pipe (7) and the pressure relief main pipe (1).

4. The integrated pressurized and gravity drainage device of claim 2, wherein: The pressure relief main pipe (1) is a straight pipe, and the connector and the pressurizing branch pipe (2) are located on opposite sides of the pressure relief main pipe (1), and the pressure relief main pipe (1), the pressurizing branch pipe (2) and the pressure measuring branch pipe (7) are located in the same plane.

5. The integrated pressurized and gravity drainage device of claim 4, wherein: The connecting component is a connecting flange (10).

6. The integrated pressurized and gravity drainage device of claim 4, wherein: A rotating cylinder (11) is fitted onto the pressure relief main pipe (1), and the rotating cylinder (11) is located between the pressurizing branch pipe (2) and the drain outlet (3). A support rod (12) is connected to the rotating cylinder (11), and a limit slot (13) is provided on one end of the rotating cylinder (11) facing the pressurizing branch pipe (2). The pressurizing branch pipe (2) is vertically connected to the pressure relief main pipe (1). When the pressurizing branch pipe (2) is inserted into the limit slot (13), the support rod (12) is limited to the opposite side of the pressurizing branch pipe (2), and the support rod (12) and the pressurizing branch pipe (2) are on the same straight line.

7. The integrated pressurized and gravity drainage device of claim 6, wherein: The rotating drum (11) is also provided with a receiving slot (14) at one end facing the pressurized branch pipe (2). When the pressurized branch pipe (2) is inserted into the receiving slot (14), the support rod (12) is limited to the same side of the pressurized branch pipe (2), and the support rod (12) and the pressurized branch pipe (2) are parallel to each other.

8. The integrated pressurized and gravity drainage device of claim 6, wherein: The support rod (12) is telescopic and adjustable.

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