Vacuum test device of vertical anchor belt structure

Abstract

The utility model relates to a vacuum test device of a vertical anchor belt structure, which comprises a shell and a bottom sealing layer, the shell is of a bottomless box type structure, the side surface and the top surface of the shell are respectively provided with an observation hole, the outer wall of the shell is provided with an air exhaust valve, and the internal space of the shell is larger than the volume of the vertical anchor belt structure; the observation hole is provided with a transparent window which is in sealed connection with the shell; the bottom sealing layer is in a flat plate shape and is made of soft materials, the area of the bottom sealing layer is larger than that of the bottom face of the shell, and a through-hole-shaped testing hole is formed in the center of the bottom sealing layer. The top surface of the bottom sealing layer is connected with the bottom surface of the shell in a sealing manner; the area of the test hole is smaller than that of the bottom surface of the shell, and the test hole is located in the bottom surface of the shell. Therefore, the shell can be covered and buckled on the vertical anchor belt structure, then the surface and internal conditions of the welding beads are observed after the shell is vacuumized, each welding bead is ensured to be detected to be qualified, no dead angle is left, and the detection efficiency and quality are greatly improved.

Description

Technical Field

[0001] This utility model relates to a construction device for chemical facilities, and more particularly to a device for the construction of vertical anchor belt structures, specifically a vacuum testing device for vertical anchor belt structures. Background Technology

[0002] like Figure 4 As shown, a vertical anchor structure typically includes a vertical anchor and an anchor sleeve. It is commonly used in the installation of storage tanks in industries such as oil, natural gas, and chemicals. During construction, the sealing of the weld 10 at the connection between the vertical anchor structure and the tank's bottom plate 11 needs to be tested on-site to ensure subsequent production safety.

[0003] Currently, the conventional inspection method involves inspecting the external welds of the vertical anchorage structure after welding, using methods such as penetrant testing and magnetic particle testing. However, these methods can only detect surface defects and cannot detect internal defects, making it easy to miss defects and creating safety hazards.

[0004] Therefore, there is an urgent need to design a device that can conveniently and thoroughly inspect the welds of vertical anchor structures to ensure that the welding quality meets the requirements. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the current construction process of vertical anchor belt structures by providing a vacuum testing device for vertical anchor belt structures. This device can quickly and accurately detect the welding quality of vertical anchor belt structures, ensuring subsequent production safety.

[0006] The technical solution of this utility model is:

[0007] A vacuum testing device with a vertical anchor structure includes a shell and a bottom sealing layer.

[0008] The shell is a bottomless box-type structure with observation holes on its side and top, and an air extraction valve on its outer wall. Its internal space is larger than the volume of the vertical anchor belt structure. The observation hole has a transparent window that is sealed to the shell.

[0009] The bottom sealing layer is flat and made of soft material. Its area is larger than that of the bottom surface of the housing, and a through-hole-shaped test hole is provided in its center. The top surface of the bottom sealing layer is sealed to the bottom surface of the housing. The area of ​​the test hole is smaller than that of the bottom surface of the housing and is located within the bottom surface of the housing.

[0010] Furthermore, the housing is cubic in shape, with the observation hole provided on its top surface and each side surface.

[0011] Furthermore, the test hole is located in the center of the bottom surface of the housing.

[0012] Furthermore, the suction valve is a needle valve.

[0013] Furthermore, a pressure gauge is also included, which is disposed on the top surface of the housing.

[0014] Furthermore, the transparent window is made of a transparent rigid material, covers the observation hole, and is fixed to the housing by fastening bolts; it also includes a lower sealing layer and an upper sealing layer; both the lower sealing layer and the upper sealing layer are U-shaped soft flat plates, respectively adapted to the observation hole; the lower sealing layer is disposed between the transparent window and the housing, and is sealed to the transparent window and the housing by sealant; the upper sealing layer is disposed between the transparent window and the fastening bolts, and is sealed to the transparent window by sealant.

[0015] Furthermore, it also includes handles; there are two handles, which are disposed opposite each other on the upper edge of the housing.

[0016] The beneficial effects of this utility model are:

[0017] This utility model features a reasonable design, simple structure, and convenient use. It allows the shell to be placed over the completed vertical anchor structure, ensuring the bottom sealing layer is tightly adhered to the tank bottom plate at the anchor structure. Then, an air extraction valve is used to evacuate the shell, creating a vacuum. Finally, the welds of the vertical anchor structure are observed through an inspection window to ensure the welding quality meets requirements. This significantly improves inspection quality and efficiency, reduces the number of inspection personnel, lowers project costs, and creates favorable conditions for improving economic benefits. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the bottom structure of this utility model.

[0020] Figure 3 yes Figure 1 Sectional view of AA.

[0021] Figure 4 This is a schematic diagram of a vertical anchorage structure.

[0022] Among them, 1-bottom sealing layer; 2-shell; 3-exhaust valve; 4-pressure gauge; 5-handle; 6-transparent window; 61-lower sealing layer; 62-upper sealing layer; 63-fastening bolt; 7-test hole; 8-vertical anchor belt; 9-anchor belt sleeve; 9-weld; 10-bottom plate inside the tank. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 3 As shown.

[0025] A vacuum testing device with a vertical anchor belt structure includes a shell 2 and a bottom sealing layer 1, etc.

[0026] The housing 2 is a bottomless cubic box structure with observation holes on each side and top. Its internal space is larger than the volume of the vertical anchor structure, allowing it to be easily fitted onto it. Preferably, the housing 2 can be constructed by welding five steel plates, each 5-8mm thick, together to ensure a secure and sealed connection. The observation holes are centered on each side and top, with a perimeter of approximately 100mm to meet usage requirements.

[0027] The observation hole is provided with a transparent window 6 that is sealed and connected to the housing 2. The transparent window 6 can be made of transparent rigid material such as acrylic, covering the observation hole, and fixed to the housing by fastening bolts 63.

[0028] A lower sealing layer 61 is provided between the transparent window 6 and the housing 2. An upper sealing layer 62 is provided between the transparent window 6 and the fastening bolt 63. Both the lower sealing layer 61 and the upper sealing layer 62 are U-shaped soft flat plates, and commercially available 3-5mm rubber plates can be used, each adapted to the observation hole. Furthermore, the lower sealing layer 61 is sealed to the transparent window 6 and the housing 2 with sealant. The upper sealing layer 62 is sealed to the transparent window 6 with sealant. Thus, the transparent window 6 and the housing 2 are firmly and sealed together, ensuring the airtightness of the interior of the housing.

[0029] The top surface of the housing 2 is equipped with a vacuum valve 3 and a pressure gauge 4, so that the inside of the housing can be evacuated to a vacuum state through the vacuum valve, and the pressure changes inside the housing can be observed through the pressure gauge. Preferably, the vacuum valve 3 is a needle valve for ease of use.

[0030] The bottom sealing layer 1 is a rectangular flat plate made of soft materials such as foam, and its area is larger than the area of ​​the bottom surface of the housing 2 so that its top surface can be sealed to the bottom surface of the housing. Simultaneously, a through-hole-shaped test hole 7 is provided in the center of the bottom sealing layer 1, and the area of ​​the test hole 7 is smaller than the area of ​​the bottom surface of the housing 2, so that the test hole can be completely placed within the bottom surface of the housing, meeting usage requirements. Preferably, the test hole is located in the center of the bottom surface of the housing for convenient installation.

[0031] Furthermore, the present invention also includes two handles 5, which are respectively disposed opposite to each other on the upper edge of the housing 2, to facilitate lifting and placing the housing 2.

[0032] The method of using this utility model is as follows:

[0033] Using the location of the vertical anchor structure as a reference, spray foam water onto the surface of its weld 10. Then, cover the device's housing onto the vertical anchor structure and use the handles to position the housing, ensuring a tight seal between the bottom sealing layer and the inner bottom plate 11. Next, turn on the vacuum equipment and slowly extract the air from the housing through the extraction valve at the top of the device. Simultaneously, observe the changes in the pressure gauge pointer at the top of the device. When the pressure gauge pointer follows the changes in negative pressure within the device and reaches the requirements specified in the design documents, stabilize the pressure for a certain period. Then, observe the vertical anchor structure inside the housing through the transparent windows, focusing on whether bubbles are generated on the foam water adhering to the weld surface. If bubbles are generated, it indicates a defect in this weld, requiring immediate rework. This ensures that each weld passes inspection without leaving any blind spots, efficiently completing the vacuum test of the vertical anchor and anchor sleeve.

[0034] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A vacuum testing device with a vertical anchor belt structure, comprising a shell and a bottom sealing layer, characterized in that, The shell is a bottomless box-type structure with observation holes on its side and top, and an air extraction valve on its outer wall. Its internal space is larger than the volume of the vertical anchor belt structure. The observation hole has a transparent window that is sealed to the shell. The bottom sealing layer is flat and made of soft material. Its area is larger than that of the bottom surface of the housing, and a through-hole-shaped test hole is provided in its center. The top surface of the bottom sealing layer is sealed to the bottom surface of the housing. The area of ​​the test hole is smaller than that of the bottom surface of the housing and is located within the bottom surface of the housing.

2. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, The housing is cubic in shape, and the observation hole is provided on its top surface and each side surface.

3. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, The test hole is located in the center of the bottom surface of the housing.

4. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, The air extraction valve is a needle valve.

5. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, It also includes a pressure gauge, which is mounted on the top surface of the housing.

6. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, The transparent window is made of a transparent rigid material, covers the observation hole, and is fixed to the housing by fastening bolts; it also includes a lower sealing layer and an upper sealing layer; the lower sealing layer and the upper sealing layer are both "U"-shaped soft flat plates, respectively adapted to the observation hole; the lower sealing layer is disposed between the transparent window and the housing, and is sealed to the transparent window and the housing by sealant; the upper sealing layer is disposed between the transparent window and the fastening bolts, and is sealed to the transparent window by sealant.

7. The vacuum testing device for the vertical anchor belt structure according to claim 1, characterized in that, It also includes handles; there are two handles, which are disposed opposite each other on the upper edge of the housing.

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