A weld inspection device for pressure vessel inspection

By designing a weld inspection device that includes an outer frame and a spraying assembly, the problem of slippery floors caused by soapy water dripping was solved, thereby improving safety and achieving effective collection of soapy water.

CN224535324UActive Publication Date: 2026-07-21MAANSHAN SPECIAL EQUIP SUPERVISION & INSPECTION CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN SPECIAL EQUIP SUPERVISION & INSPECTION CENT
Filing Date
2025-10-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the inspection of welds on existing pressure vessels, soapy water can easily drip onto the working environment floor, causing a slippery surface and affecting the safety of workers.

Method used

Design a weld inspection device that includes an outer frame, a barrier group, and a spraying group. Excess soap water is collected by the clamping part and the collecting part of the barrier group, and the soap water is sprayed by the spraying group and collected into a water tank to reduce soap water dripping.

Benefits of technology

It effectively reduces the impact of soapy water on the working environment, improves the safety of workers, and allows excess soapy water to be used later.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to pressure vessel inspection technical field, and disclose a kind of weld inspection device for pressure vessel inspection, including outer frame, still include: barrier group, set in the bottom of outer frame, the barrier group includes the connecting piece welded in the both ends of outer frame, the surface of the connecting piece is provided with the clamping portion that can collect excess soap water;Spraying group, set in the inside of outer frame;The utility model's surface of adhering member and pressure vessel is adhered, staff sprays soap water to the surface of outer frame by spraying group, and excess soap water is collected to water tank by collecting piece, cavity and flow guide piece, can reduce the influence caused by soap water to surrounding working environment, in addition, excess soap water can be collected for subsequent use, solve the soap water used by current part inspection device and easily drip on the ground of working environment, the safety of subsequent staff operation is easily affected therefore.
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Description

Technical Field

[0001] This utility model relates to the field of pressure vessel inspection technology, specifically to a weld inspection device for pressure vessel inspection. Background Technology

[0002] Pressure vessel weld inspection refers to verifying the compliance of the welding process by detecting internal and surface defects in the weld (such as cracks, porosity, and lack of fusion) and ensuring the reliability of the weld under extreme conditions such as high temperature and high pressure.

[0003] Currently, when inspecting the weld surface for porosity, workers usually spray soapy water onto the weld. At this time, air is injected into the pressure vessel. If there are pores on the weld surface, the gas will be released, causing the soapy water to foam. However, when using this method, the soapy water is prone to flow and drip on the surface of the pressure vessel, which can easily make the working environment slippery. After the inspection is completed and the pressure vessel is removed, workers are prone to slipping and falling due to the slippery ground when walking. Utility Model Content

[0004] The purpose of this invention is to provide a weld inspection device for pressure vessel inspection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weld inspection device for pressure vessel inspection, comprising an outer frame, and further comprising: A barrier assembly is provided at the bottom of the outer frame. The barrier assembly includes connectors welded to both ends of the outer frame. The surface of the connectors is provided with clamping parts for collecting excess soap water. The spraying unit is located inside the outer frame.

[0006] Preferably, the barrier assembly further includes a clamping portion disposed on the connector, the clamping portion comprising; Rotating shaft, rotating through the connecting piece; A lead screw with a thread passing through a rotating shaft has a fitting component rotatably connected to one end of the lead screw. The surface of the fitting component is provided with a rubber pad, and the interior of the fitting component has a cavity.

[0007] Preferably, a positioning ring is fixedly sleeved on the surface of the rotating shaft, and the positioning ring rotates through the connecting member.

[0008] Preferably, a guide is slidably passed through the surface of the connector, both ends of the guide are fixedly connected to the surface of the fitting, and the other end of the lead screw is rotatably connected to the guide.

[0009] Preferably, a collecting member slides through the surface of the connector, and one end of the collecting member is fixedly connected to the fitting member.

[0010] Preferably, a water tank is welded to the bottom of the connector, and a flow guide is provided between the water tank and the fitting component.

[0011] Preferably, the spray assembly includes: The water storage pipe is embedded inside the outer frame; The extension pipe and nozzle both penetrate the outer frame and are connected to the water storage pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the cooperation of a lead screw and a bonding component to mount an outer frame onto the surface of a pressure vessel. The bonding component adheres to the surface of the pressure vessel. Workers spray soapy water onto the surface of the outer frame using a spraying assembly. Excess soapy water is collected into a water tank through a collecting component, a cavity, and a guide component, reducing the impact of soapy water on the surrounding working environment. Furthermore, excess soapy water can be collected for subsequent use, solving the problem that soapy water used in some current testing devices easily drips onto the ground in the working environment, potentially affecting the safety of subsequent workers. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention installed on a pressure vessel; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention with the outer frame cut open; Figure 4 This is a three-dimensional structural diagram of the present invention with the connector, the fitting component, and the water tank cut apart. Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0014] In the diagram: 100, outer frame; 200, barrier assembly; 210, connector; 220, clamping part; 221, rotating shaft; 222, lead screw; 223, fitting part; 224, guide part; 225, positioning ring; 226, collecting part; 227, flow guide part; 228, water tank; 300, spray assembly; 310, water storage pipe; 320, extension pipe; 330, nozzle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 As shown, a weld inspection device for pressure vessel inspection includes an outer frame 100. A barrier assembly 200 is provided at the bottom of the outer frame 100. The barrier assembly 200 includes connectors 210 welded to both ends of the outer frame 100. A laterally movable clamping portion 220 is provided on the surface of the connector 210. A spraying assembly 300 is provided inside the outer frame 100. The barrier assembly 200 also includes the clamping portion 220 provided on the connector 210. The clamping portion 220 includes a rotating shaft 221 that rotatably passes through the connector 210. The internal thread of 221 passes through the lead screw 222. One end of the lead screw 222 is rotatably connected to the fitting 223. When the operator rotates the shaft 221, the lead screw 222 moves accordingly. The surface of the connector 210 slides through the guide 224. Both ends of the guide 224 are fixedly connected to the surface of the fitting 223. The other end of the lead screw 222 is rotatably connected to the guide 224. During this process, the guide 224 can guide the movement of the fitting 223, thereby allowing the fitting 223 to move stably laterally.

[0017] The surface of the fitting 223 is provided with a rubber pad, which can increase the tightness of the contact between the fitting 223 and the pressure vessel, and the fitting 223 can better collect soap water. The surface of the rotating shaft 221 is fixedly fitted with a positioning ring 225, which rotates through the connector 210. The positioning ring 225 can limit the rotation of the rotating shaft 221, thereby increasing the stability of the rotating shaft 221 during rotation. The surface of the connector 210 is slidably connected with a collecting member 226, one end of which is fixedly connected to the fitting 223. The interior of the fitting 223 has a cavity. The bottom of the connector 210 is welded with a water tank 228. A guide member 227 is provided between the water tank 228 and the fitting 223. The soap water collected by the collecting member 226 is discharged into the water tank 228 through the cavity and the guide member 227. A valve is installed at the bottom of the water tank 228, and the collected soap water is discharged through the valve and can be used for subsequent inspection operations.

[0018] After the staff sprays soapy water onto the surface of the pressure vessel through the spray assembly 300, the excess soapy water is collected into the cavity through the collector 226 for later use. The spray assembly 300 includes a water storage pipe 310 embedded inside the outer frame 100, an extension pipe 320 penetrating the surface of the outer frame 100 and connected to the water storage pipe 310, and a nozzle 330 penetrating the inner surface of the outer frame 100 and connected to the water storage pipe 310. After the staff injects soapy water into the water storage pipe 310 through the extension pipe 320, the soapy water is discharged through the nozzle 330 and sprayed onto the surface of the pressure vessel. Gas is injected into the pressure vessel. If there is a leak at the weld of the pressure vessel, foam will appear on the soapy water on the surface of the pressure vessel. Based on this, the staff can quickly determine whether there is a leak at the weld and the approximate location of the leak.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weld inspection device for pressure vessel inspection, characterized in that, Including the outer frame (100), it also includes: A barrier assembly (200) is disposed at the bottom of the outer frame (100). The barrier assembly (200) includes connectors (210) welded to both ends of the outer frame (100). The surface of the connectors (210) is provided with clamping parts (220) for collecting excess soap water. The spraying unit (300) is located inside the outer frame (100).

2. The weld inspection device for pressure vessel inspection according to claim 1, characterized in that, The barrier assembly (200) further includes a clamping part (220) disposed on the connector (210), the clamping part (220) including; Rotating shaft (221), rotating through connector (210); A lead screw (222) is threaded through a rotating shaft (221). One end of the lead screw (222) is rotatably connected to a fitting (223). The surface of the fitting (223) is provided with a rubber pad, and the interior of the fitting (223) is provided with a cavity.

3. The weld inspection device for pressure vessel inspection according to claim 2, characterized in that: A positioning ring (225) is fixedly sleeved on the surface of the rotating shaft (221), and the positioning ring (225) rotates through the connector (210).

4. The weld inspection device for pressure vessel inspection according to claim 2, characterized in that: The surface of the connector (210) is slidably penetrated by the guide (224), both ends of the guide (224) are fixedly connected to the surface of the fitting (223), and the other end of the lead screw (222) is rotatably connected to the guide (224).

5. The weld inspection device for pressure vessel inspection according to claim 2, characterized in that: The surface of the connector (210) is slidably penetrated by the collector (226), and one end of the collector (226) is fixedly connected to the fitting (223).

6. The weld inspection device for pressure vessel inspection according to claim 2, characterized in that: A water tank (228) is welded to the bottom of the connector (210), and a flow guide (227) is provided between the water tank (228) and the fitting (223).

7. The weld inspection device for pressure vessel inspection according to claim 1, characterized in that, The spray assembly (300) includes: A water storage pipe (310) is embedded inside the outer frame (100); The extension pipe (320) and the nozzle (330) both penetrate the outer frame (100) and are connected to the water storage pipe (310).