Directional shock wave gas pulse pipeline descaling and flushing device capable of being assembled and disassembled on line

Abstract

The utility model relates to the field of pipeline scaling cleaning, in particular to a directional shock wave gas pulse pipeline descaling flushing device capable of being assembled and disassembled on line, which comprises a high-pressure gas source, a gas valve, a gas inlet pipe and a bidirectional pneumatic shock wave generating device, the high-pressure gas source is used for providing high-pressure gas required for cleaning the pipeline for the bidirectional pneumatic impulse wave generating device; the air valve is located between the high-pressure air source and the air inlet pipe and controls high-pressure air to enter the on-off state of the air inlet pipe. The air inlet pipe is communicated with the air valve and the two-way pneumatic shock wave generating device, high-pressure air enters the two-way pneumatic shock wave generating device, and meanwhile the two-way pneumatic shock wave generating device is supported. High-pressure gas flows into the pipeline in a high-frequency pulsation mode and is gathered into shock waves, the flow speed of liquid in the pipeline is increased, bubbles in the pipeline are promoted to be fused and broken, the small bubble adsorption capacity of scale deposited on the lower portion of the pipeline is improved, the pipeline cleaning capacity is improved, and the flushing device can be assembled and disassembled on line under the operation condition.

Description

Technical Field

[0001] The utility model relates to the field of pipeline cleaning, in particular to a directional shock wave gas pulse pipeline descaling and flushing device which can be assembled and disassembled online. Background Art

[0002] In the fields of water supply, food, petrochemical and other industries, there is a need for pipeline descaling and cleaning. Traditionally, three cleaning technologies are adopted: high-pressure water descaling, chemical cleaning, and PIG physical cleaning. The above three different forms of cleaning technology belong to this conventional type, and each has its own advantages and disadvantages. The above three pipeline cleaning technologies have prominent limitations during the construction process: 1. High-pressure water requires a skylight to be opened on the pipeline every 30-40 meters for operation. Moreover, scale is not easy to be discharged from the pipeline; 2. Chemical cleaning is not recommended for use due to pollution and environmental protection; 3. PIG ball physical cleaning has the problem of pipe cleaner size ranging from small to large, and pipe cleaners cannot be used for severely blocked pipelines;

[0003] When existing pipeline cleaning devices are used to clean special areas such as food and medicine, since the entire pipeline is in a sterile state, it is often necessary to perform online flushing while in operation. Therefore, if the pipeline is disassembled for cleaning, it may cause internal contamination of the pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide a directional shock wave gas pulse pipeline descaling and flushing device which can be assembled and disassembled online in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A directional shock wave air pulse pipeline descaling and flushing device that can be assembled and disassembled online, comprising a high-pressure air source, an air valve, an air inlet pipe, and a bidirectional pneumatic shock wave generating device;

[0007] The high-pressure gas source provides the bidirectional pneumatic shock wave generating device with the high-pressure gas required for cleaning the pipeline;

[0008] The gas valve is located between the high-pressure gas source and the air intake pipe, and controls the on-off state of the high-pressure gas entering the air intake pipe;

[0009] The air inlet pipe is connected to the air valve and the bidirectional pneumatic shock wave generating device, allowing high-pressure gas to enter the bidirectional pneumatic shock wave generating device, and also supports the bidirectional pneumatic shock wave generating device;

[0010] One or more of the two-way pneumatic shock wave generating devices are located in the pipeline to be cleaned, and high-pressure gas enters the pipeline from the center of the two-way pneumatic shock wave generating device to push the liquid transported in the pipeline, generate shock waves, and provide bubbles;

[0011] The cylindrical container is fixed on the gate valve, and the gate valve is fixed on the wall of the pipeline that needs to be cleaned. When working, the gate valve is opened and the air pulse pipeline flushing device is extended into the pipeline; when exiting work, the air pulse pipeline flushing device exits the pipeline and enters the cylindrical container completely, closing the gate valve.

[0012] Preferably, the high-pressure gas pressure of the high-pressure gas source is higher than the pipeline to be cleaned.

[0013] Preferably, the high pressure gas source used includes compressed air.

[0014] Preferably: the on-off condition of the air valve is that after the center position of the two-way pneumatic shock wave generating device is filled with liquid transported by the pipeline, the air valve is opened to allow high-pressure gas to enter the air inlet pipe, and before the high-pressure gas entering the pipeline flows out of the two-way pneumatic shock wave generating device, the air valve is closed to prevent the high-pressure gas from entering the air inlet pipe;

[0015] The high-pressure gas enters the intake pipe in a high-frequency pulsating manner. By controlling the on-off time ratio of the high-pressure gas entering the intake pipe, the flow rate of the high-pressure gas entering the pipeline is adjusted.

[0016] Preferably, the bidirectional pneumatic shock wave generating device is a hollow pipe, the inner wall of the pipe is thinner in the middle section, the inner wall is in a trumpet shape at both ends, the exhaust port is located at the thinner position of the inner wall in the middle section, and the high-pressure gas is discharged from the exhaust port to push the liquid to both sides, thereby generating shock waves in two directions and providing bubbles;

[0017] The bidirectional pneumatic shock wave generating device is installed at the straight pipe, and the two bell mouths face the two directions of liquid inflow and outflow.

[0018] Preferably: the bidirectional pneumatic shock wave generating device takes measures to prevent the pipeline liquid from flowing back into the exhaust port, the internal high-pressure gas channel at the exhaust port is higher than the exhaust port, and a check device is installed at the exhaust port.

[0019] Compared with the existing technology, the beneficial effects are as follows: high-pressure gas flows into the pipeline in a high-frequency pulsation manner, and gathers energy into shock waves, thereby increasing the liquid flow rate in the pipeline, promoting the fusion and rupture of bubbles in the pipeline, increasing the ability of the lower part of the pipeline to adsorb small bubbles, and improving the pipeline cleaning ability. The flushing device can be loaded and unloaded online under operating conditions, and pipeline cleaning can be achieved in special fields such as food and medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic structural diagram of a bidirectional pneumatic shock wave generating device of a directional shock wave air pulse pipeline descaling and flushing device that can be loaded and unloaded online according to the utility model;

[0022] Figure 2 It is a schematic diagram of a plurality of detachable bidirectional pneumatic shock wave generating devices installed on non-same planes at a straight pipe of Example 1 of the utility model;

[0023] Figure 3 It is a schematic diagram of installing multiple detachable bidirectional pneumatic shock wave generating devices on the same plane at a straight pipe in Example 2 of the utility model;

[0024] Figure 4 It is a schematic diagram of a single detachable bidirectional pneumatic shock wave generating device installed at a straight pipe of Example 3 of the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. High-pressure gas source; 2. Air valve; 3. Air inlet pipe; 4. Pipeline to be cleaned; 6. Liquid flow direction in the pipeline; 7. Shock wave direction; 9. Bell mouth; 10. Exhaust port; 11. Bidirectional pneumatic shock wave generator; 12. Check device; 13. Air inlet hose; 14. Plug-in gate valve; 15. Cylindrical container; 16. Limit device; 17. Pneumatic shock wave generator advance and retreat push-pull rod; 18. Sealing device. DETAILED DESCRIPTION

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] like Figure 1-Figure 4 The directional shock wave gas pulse pipeline descaling and flushing device that can be assembled and disassembled online comprises a high-pressure gas source 1, an air valve 2, an air inlet pipe 3, and a bidirectional pneumatic shock wave generating device 11;

[0031] The high-pressure gas source 1 provides the bidirectional pneumatic shock wave generating device 11 with high-pressure gas required for cleaning the pipeline;

[0032] The air valve 2 is located between the high-pressure gas source 1 and the air intake pipe 3, and controls the on-off state of the high-pressure gas entering the air intake pipe 3;

[0033] The air inlet pipe 3 is connected to the air valve 2 and the bidirectional pneumatic shock wave generating device 11, allowing the high-pressure gas to enter the bidirectional pneumatic shock wave generating device 11, and also supports the bidirectional pneumatic shock wave generating device 11;

[0034] One or more bidirectional pneumatic shock wave generating devices 11 are located in the pipeline 4 to be cleaned, and high-pressure gas enters the pipeline from the center of the bidirectional pneumatic shock wave generating device 11 to push the liquid transported in the pipeline, generate shock waves, and provide bubbles;

[0035] The cylindrical container 15 is fixed on the gate valve 14, and the gate valve 14 is fixed on the wall of the pipeline 4 that needs to be cleaned. When working, the gate valve 14 is opened, and the gas pulse pipeline flushing device is extended into the pipeline; when exiting work, the gas pulse pipeline flushing device exits the pipeline and completely enters the cylindrical container 15, closing the gate valve 14.

[0036] The high-pressure gas of the high-pressure gas source 1 has a higher pressure than the pipeline 4 to be cleaned.

[0037] The high-pressure gas source 1 uses compressed air, which includes nitrogen and carbon dioxide.

[0038] The on-off condition of the air valve 2 is that after the center of the two-way pneumatic shock wave generating device 11 is filled with liquid transported by the pipeline, the air valve 2 is opened to allow high-pressure gas to enter the air intake pipe 3, and before the high-pressure gas entering the pipeline flows out of the two-way pneumatic shock wave generating device 11, the air valve 2 is closed to prevent the high-pressure gas from entering the air intake pipe 3;

[0039] The high-pressure gas enters the intake pipe 3 in a high-frequency pulsating manner, and the flow rate of the high-pressure gas entering the pipeline is adjusted by controlling the on-off time ratio of the high-pressure gas entering the intake pipe 3.

[0040] The bidirectional pneumatic shock wave generating device 11 is a hollow pipe, the inner wall of the pipe is thinner in the middle section, the inner wall is in the shape of bell mouths 9 at both ends, the exhaust port 10 is located at the thinner position of the inner wall in the middle section, and the high-pressure gas is discharged from the exhaust port 10, pushing the liquid to both sides, generating shock waves in two directions, and providing bubbles;

[0041] The bidirectional pneumatic shock wave generating device 11 is installed at the straight pipe, and the two bell mouths 9 face the two directions of liquid inflow and outflow.

[0042] Among them, the bidirectional pneumatic shock wave generating device 11 takes measures to prevent the pipeline liquid from flowing back into the exhaust port 10. The internal high-pressure gas channel at the exhaust port 10 is higher than the exhaust port 10, and a check device 12 is installed at the exhaust port 10.

[0043] The flow direction 6 of the liquid in the pipeline and the direction 7 of the shock wave are as follows: Figure 1 shown.

[0044] Among them, three sets of limit devices 16 are arranged on the inner wall of the cylindrical container 15, and a pneumatic shock wave generating device advance and retreat push-pull rod 17 for driving the bidirectional pneumatic shock wave generating device 11 to move is arranged inside the cylindrical container 15, and a sealing device 18 is arranged on the contact part between the pneumatic shock wave generating device advance and retreat push-pull rod 17 and the cylindrical container 15.

[0045] Example 1

[0046] like Figure 1 and Figure 2 As shown, a plurality of detachable bidirectional pneumatic shock wave generating devices are installed at the straight pipe, and the plurality of bidirectional pneumatic shock wave generating devices are installed on non-same planes.

[0047] This embodiment is suitable for pipelines that need to be cleaned with large flow rates and where liquids cause significant wear to the pipelines. It is convenient to install at straight pipes, and the flushing device can be installed and removed online when the pipeline is in operation.

[0048] Example 2

[0049] like Figure 1 and Figure 3As shown, a plurality of detachable bidirectional pneumatic shock wave generating devices are installed at the straight pipe, and the bidirectional pneumatic shock wave generating devices are installed on the same plane.

[0050] This embodiment is suitable for pipelines that need to be cleaned with large flow rates and where liquids cause significant wear to the pipelines. It is convenient to install at straight pipes, and the flushing device can be installed and removed online when the pipeline is in operation.

[0051] Example 3

[0052] like Figure 1 and Figure 4 As shown, a single detachable bidirectional pneumatic shock wave generating device is installed at the straight pipe.

[0053] This embodiment is suitable for pipelines that need to be cleaned with a small flow rate and where the liquid causes greater wear to the pipeline. It is convenient to install at a straight pipe, and the flushing device can be loaded and unloaded online when the pipeline is in operation.

[0054] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A directional shock wave gas pulse pipeline descaling and flushing device that can be loaded and unloaded online, characterized in that: It comprises a high-pressure gas source (1), a gas valve (2), an air inlet pipe (3), a bidirectional pneumatic shock wave generating device (11), a plug-in gate valve (14), and a cylindrical container (15); The high-pressure gas source (1) provides the bidirectional pneumatic shock wave generating device (11) with the high-pressure gas required by the pipeline (4) to be cleaned; The gas valve (2) is located between the high-pressure gas source (1) and the air intake pipe (3), and controls the on / off state of the high-pressure gas entering the air intake pipe (3); The air inlet pipe (3) is connected to the air valve (2) and the bidirectional pneumatic shock wave generating device (11), allowing high-pressure gas to enter the bidirectional pneumatic shock wave generating device (11), and also supports the bidirectional pneumatic shock wave generating device (11); There are one or more bidirectional pneumatic shock wave generating devices (11), all of which are located in the pipeline (4) to be cleaned. High-pressure gas enters the pipeline (4) to be cleaned from the center of the bidirectional pneumatic shock wave generating device (11), pushes the liquid transported in the pipeline, generates shock waves, and provides bubbles. The cylindrical container (15) is fixed on the gate valve (14), and the gate valve (14) is fixed on the wall of the pipeline to be cleaned. When working, the gate valve (14) is opened, and the two-way pneumatic shock wave generating device (11) is extended into the pipeline (4); when quitting working, the two-way pneumatic shock wave generating device (11) is withdrawn from the pipeline (4), and all enters the cylindrical container (15), and the gate valve (14) is closed.

2. The directional shock wave gas pulse pipeline descaling and flushing device that can be loaded and unloaded online according to claim 1 is characterized in that: The high-pressure gas of the high-pressure gas source (1) has a higher pressure than the pipeline (4) to be cleaned.

3. A directional shock wave gas pulse pipeline descaling and flushing device that can be loaded and unloaded online according to claim 1 or 2, characterized in that: The high pressure gas source (1) used includes compressed air.

4. The directional shock wave gas pulse pipeline descaling and flushing device that can be loaded and unloaded online according to claim 1 is characterized in that: The on-off condition of the air valve is that after the center position of the bidirectional pneumatic shock wave generating device (11) is filled with liquid transported by the pipeline (4), the air valve (2) is opened to allow high-pressure gas to enter the air inlet pipe (3), and before the high-pressure gas entering the pipeline flows out of the bidirectional pneumatic shock wave generating device (11), the air valve (2) is closed to prevent the high-pressure gas from entering the air inlet pipe (3); The high-pressure gas enters the air intake pipe (3) in a high-frequency pulsating manner, and the flow rate of the high-pressure gas entering the pipeline (4) to be cleaned is adjusted by controlling the on-off time ratio of the high-pressure gas entering the air intake pipe (3).

5. The directional shock wave gas pulse pipeline descaling and flushing device that can be loaded and unloaded online according to claim 1 is characterized in that: The bidirectional pneumatic shock wave generating device (11) is a hollow pipe, the inner wall of the pipe is thinner in the middle section, the inner wall is in the shape of trumpet mouths (9) at both ends, the exhaust port (10) is located at the thinner position of the inner wall in the middle section, and the high-pressure gas is discharged from the exhaust port (10) to push the liquid toward both sides, thereby generating shock waves in two directions and providing bubbles; The bidirectional pneumatic shock wave generating device (11) is installed on the straight pipe, and the two bell mouths (9) face the two directions of liquid inflow and outflow.

6. The directional shock wave gas pulse pipeline descaling and flushing device capable of online assembly and disassembly according to claim 5 is characterized in that: The bidirectional pneumatic shock wave generating device (11) takes measures to prevent pipeline liquid from flowing back into the exhaust port (10). The internal high-pressure gas channel at the exhaust port (10) is higher than the exhaust port, and a check device (12) is installed at the exhaust port (10).

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