Device for unidirectional detection of sealing effect of pipeline joint

Abstract

The utility model discloses a device for one-way detection of the sealing effect of a pipeline joint, which comprises an outer sealing plate, an extension sealing mechanism and an air tightness detection mechanism, the extension sealing mechanism is installed on the outer sealing plate and used for extending into a pipeline, and the extension sealing mechanism, the outer sealing plate and the inner wall of the pipeline joint form a closed cavity in a surrounding manner; the outer sealing plate is provided with a charging connector which can be communicated with the closed cavity and is used for charging detection gas into the closed cavity, and the airtightness detection mechanism is installed on the outer sealing plate and is used for detecting whether gas leaks out of the closed cavity or not. The outer sealing plate, the extension sealing mechanism and the inner wall of the pipeline joint jointly form a closed cavity, so that the airtightness detection mechanism can detect the sealing effect of the pipeline joint through the closed cavity, the structure is simple, the detection mode is convenient, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline detection, and in particular relates to a device for unidirectionally detecting the sealing effect of a pipeline joint. Background Art

[0002] Wind power generation technology has developed rapidly in recent years. Steel-concrete hybrid structure towers have been widely used in onshore wind turbines due to their advantages of large bearing capacity, high rigidity and low material cost.

[0003] To meet the transportation requirements of wind turbines, some components often need to be disassembled and shipped separately before leaving the factory. The radiator assembly, an exposed component of the unit, is typically disassembled and shipped separately. To reduce the workload of wind farm installation, some of the piping connecting the radiator is often installed at the assembly base. To ensure that the piping is leak-free and meets requirements after installation, the installation is always inspected.

[0004] Currently, checking the effectiveness of pipeline installation requires sealing both ends of the pipeline and evaluating the sealing effect through airtightness testing. However, the ends of the pipeline are generally not sealed, making airtightness testing at both ends inconvenient, cumbersome, and costly.

[0005] Based on this, the applicant considered designing a device for one-way detection of the sealing effect of pipeline joints. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a device for one-way detection of the sealing effect of a pipeline joint.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A device for one-way detection of the sealing effect of a pipeline joint comprises an outer sealing plate, an extension sealing mechanism and an airtightness detection mechanism, wherein the extension sealing mechanism is mounted on the outer sealing plate and is used to extend into the pipeline and, together with the outer sealing plate and the inner wall of the pipeline joint, form a closed cavity; the outer sealing plate is provided with an inflation nozzle capable of communicating with the closed cavity and is used to fill the closed cavity with a detection gas; the airtightness detection mechanism is mounted on the outer sealing plate and is used to detect whether there is gas leakage in the closed cavity.

[0009] Compared with the prior art, the device for one-way detection of the sealing effect of a pipe joint of the utility model has the following advantages:

[0010] By setting up the outer sealing plate, the extended sealing mechanism and the airtightness detection mechanism, a closed closed cavity is formed between the outer sealing plate, the extended sealing mechanism and the inner wall of the pipe joint, so that the airtightness detection mechanism can detect the sealing effect at the pipe joint through the closed cavity. The structure is simple, the detection method is relatively convenient, and the production cost is low.

[0011] The above-mentioned device for one-way detection of pipeline joint sealing effect has the advantages of simple structure and easy implementation. It is suitable for installation and use in the existing wind power tower pipeline joint air tightness detection, and has low cost of use and can improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a structural diagram of the utility model installed in a pipe joint;

[0014] Description of Reference Numerals

[0015] 100 outer sealing plate, 110 inflation nozzle, 120 closed cavity;

[0016] 210 limiting rod, 220 limiting cylinder, 230 sealing ring, 240 fastening nut;

[0017] 310 external pipe, 320 stop valve, 330 pressure gauge;

[0018] 400 inflatable device. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings.

[0020] When implementing: Figure 1 and Figure 2 As shown, a device for one-way detection of the sealing effect of a pipeline joint is characterized in that it includes an outer sealing plate 100, an extension sealing mechanism and an airtightness detection mechanism, the extension sealing mechanism is installed on the outer sealing plate 100, and is used to extend into the pipeline, and together with the outer sealing plate 100 and the inner wall of the pipeline joint, form a closed cavity 120, the outer sealing plate 100 is provided with an inflation nozzle 110 that can be connected to the closed cavity 120, and is used to fill the closed cavity 120 with detection gas, and the airtightness detection mechanism is installed on the outer sealing plate 100, and is used to detect whether there is any gas leakage in the closed cavity 120.

[0021] Compared with the prior art, the device for one-way detection of the sealing effect of a pipe joint of the utility model has the following advantages:

[0022] By setting the outer sealing plate 100, the extended sealing mechanism and the airtightness detection mechanism, a closed closed cavity 120 is formed between the outer sealing plate 100, the extended sealing mechanism and the inner wall of the pipe joint, so that the airtightness detection mechanism can detect the sealing effect at the pipe joint through the closed cavity 120. The structure is simple, the detection method is relatively convenient, and the production cost is low.

[0023] The above-mentioned device for one-way detection of pipeline joint sealing effect has the advantages of simple structure and easy implementation. It is suitable for installation and use in the existing wind power tower pipeline joint air tightness detection, and has low cost of use and can improve efficiency.

[0024] In this embodiment, Figure 1 and Figure 2 As shown, the extended sealing mechanism includes a limiting rod 210, a limiting cylinder 220 and a sealing ring 230. The limiting rod 210 includes a connecting end and a sealing end relative to each other. The connecting end is connected to the outer sealing plate 100, and the sealing end extends into the pipeline. The limiting cylinder 220 is coaxially fixed to the sealing end. The sealing ring 230 is sleeved on the circumferential surface of the limiting cylinder 220 and abuts against the inner wall of the pipeline.

[0025] In this way, by setting the limiting rod 210, the limiting cylinder 220 and the sealing ring 230, when the extended sealing mechanism is extended into the pipeline, a closed cavity 120 surrounded by the limiting cylinder 220, the outer sealing plate 100 and the inner wall of the pipeline can be formed, which is convenient for subsequent testing of the sealing of the inner wall of the pipeline.

[0026] During implementation, when the limiting rod 210, the limiting cylinder 220 and the sealing ring 230 are extended into the pipeline, friction will be generated between the sealing ring 230 and the inner wall of the pipeline. By applying pressure and continuously twisting the limiting rod 210 and the limiting cylinder 220, the limiting cylinder 220 can be extended into the pipeline.

[0027] In this embodiment, Figure 1 and Figure 2 As shown, an annular groove is coaxially provided on the circumferential surface of the limiting cylinder 220, and the sealing ring 230 is sleeved in the annular groove.

[0028] In this way, the annular groove makes the sealing ring 230 more stable when it is sleeved on the limiting cylinder 220.

[0029] In this embodiment, Figure 1 and Figure 2As shown, it also includes a fastening nut 240. A fixing hole is provided in the center of the outer sealing plate 100. A fastening thread is provided on the connecting end of the limiting rod 210. The connecting end passes through the fixing hole from one side of the outer sealing plate 100. The fastening nut 240 is connected to the fastening thread on the connecting end from the other side of the outer sealing plate 100 to enable the limiting rod 210 to be fastened to the outer sealing plate 100.

[0030] In this way, through the provided fixing hole and the fastening nut 240 , the limiting rod 210 can be connected and fastened to each other through the fixing hole and the fastening nut 240 , so as to facilitate the installation and removal of the limiting rod 210 .

[0031] During implementation, the fastening nut 240 is threadedly connected and matched with the fastening thread.

[0032] In this embodiment, Figure 1 and Figure 2 As shown, the airtightness detection mechanism includes an external tube 310, a stop valve 320 and a pressure gauge 330. The external tube 310 includes a docking end and a detection end. The outer sealing plate 100 is provided with a detection hole connected to the closed cavity 120. The docking end is connected to the detection hole. The stop valve 320 is connected and installed on the detection end to block the gas in the closed cavity 120. The pressure gauge 330 is installed on the external tube 310 and is located between the docking end and the detection end, and is used to detect the air pressure value in the closed cavity 120 through the external tube 310.

[0033] In this way, the external pipe 310 , the stop valve 320 and the pressure gauge 330 are provided, so that the closed cavity 120 can be connected via the external pipe 310 , and the airtightness of the gas in the closed cavity 120 can be measured via the pressure gauge 330 .

[0034] In this embodiment, Figure 1 and Figure 2 As shown, a one-way valve is provided in the inflation nozzle 110 to prevent gas from leaking out of the closed cavity 120 .

[0035] In this way, the one-way valve is provided to prevent gas from leaking out after the closed cavity 120 is inflated.

[0036] In this embodiment, Figure 1 and Figure 2 As shown, an inflation device 400 is also included, and the inflation device 400 is used to be connected to the inflation nozzle 110 to fill gas into the closed cavity 120.

[0037] In this way, by setting up the inflation device 400, gas can be injected into the closed cavity 120 through the inflation device 400 and the inflation nozzle 110, so as to subsequently detect the tightness of the detection pipeline, and inflation is relatively quick and convenient.

[0038] In this embodiment, Figure 1 and Figure 2 As shown, the outer sealing plate 100 is provided with bolts and screw holes, so that the outer sealing plate 100 can be fastened and sealed on the opening of the pipeline through the threaded connection between the bolts and the screw holes.

[0039] In this way, the outer sealing plate 100 can be fixed on the pipeline interface through the provided bolts and screw holes, so as to simultaneously fix the extension sealing mechanism and the airtightness detection mechanism.

[0040] The above are only preferred implementations of the present invention. It should be pointed out that various modifications and improvements made by those skilled in the art without departing from the present technical solution should also be deemed to fall within the scope of protection required by the claims.

Claims

1. A device for one-way detection of the sealing effect of a pipeline joint, characterized by: It includes an outer sealing plate, an extension sealing mechanism and an airtightness detection mechanism. The extension sealing mechanism is installed on the outer sealing plate and is used to extend into the pipeline and form a closed cavity together with the outer sealing plate and the inner wall of the pipeline joint. The outer sealing plate is provided with an inflation nozzle that can be connected to the closed cavity and is used to fill the closed cavity with detection gas. The airtightness detection mechanism is installed on the outer sealing plate and is used to detect whether there is gas leakage in the closed cavity.

2. The device for one-way detection of sealing effect of pipeline joints according to claim 1, characterized in that: The extending sealing mechanism includes a limiting rod, a limiting cylinder and a sealing ring. The limiting rod includes a connecting end and a sealing end relative to each other. The connecting end is connected to the outer sealing plate, and the sealing end extends into the pipeline. The limiting cylinder is coaxially fixed to the sealing end. The sealing ring is sleeved on the circumferential surface of the limiting cylinder and abuts against the inner wall of the pipeline.

3. The device for one-way detection of sealing effect of pipeline joints according to claim 2, characterized in that: An annular groove is coaxially provided on the circumferential surface of the limiting cylinder, and the sealing ring is sleeved in the annular groove.

4. The device for one-way detection of sealing effect of pipeline joints according to claim 2, characterized in that: It also includes a fastening nut, a fixing hole is provided in the center of the outer sealing plate, a fastening thread is provided on the connecting end of the limiting rod, the connecting end passes through the fixing hole from one side of the outer sealing plate, and the fastening nut is connected to the fastening thread on the connecting end from the other side of the outer sealing plate, so that the limiting rod can be fastened to the outer sealing plate.

5. The device for one-way detection of sealing effect of pipeline joints according to claim 4, characterized in that: The airtightness detection mechanism includes an external tube, a stop valve and a pressure gauge. The external tube includes a docking end and a detection end. A detection hole connected to the closed cavity is provided on the outer sealing plate. The docking end is connected to the detection hole. The stop valve is connected and installed on the detection end to block the gas in the closed cavity. The pressure gauge is installed on the external tube and is located between the docking end and the detection end, and is used to detect the air pressure value in the closed cavity through the external tube.

6. A device for one-way detection of sealing effect of pipeline joints according to any one of claims 1 to 5, characterized in that: A one-way valve is provided in the inflation nozzle to prevent gas from leaking out of the closed cavity.

7. The device for one-way detection of sealing effect of pipeline joints according to claim 6, characterized in that: It also includes an inflation device, which is used to be connected to the inflation nozzle to inflate gas into the closed cavity.

8. A device for one-way detection of sealing effect of a pipeline joint according to any one of claims 1 to 5, characterized in that: The outer sealing plate is provided with bolts and screw holes, so that the outer sealing plate can be fastened and sealed on the opening of the pipeline through threaded connection between the bolts and the screw holes.

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