Stainless steel joint for checking air tightness

Abstract

The utility model discloses a stainless steel joint for checking air tightness, which relates to the technical field of checking tools, and comprises an air inflation end assembly and an air blocking end assembly, the air inflation end assembly comprises an end sleeve I, the side surface of the end sleeve I is uniformly connected with a plurality of fastening screws I, and the center of the end sleeve I is in threaded connection with a stud I; the upper end and the lower end of the first stud are connected with a first dismounting block and a first end touch plate respectively, the first stud, the first dismounting block and the first end touch plate are of an integrated structure, vent holes are coaxially formed in the integrated structure, the top end of the first dismounting block is in threaded connection with a transition pipe, and the top end of the transition pipe is in threaded connection with an air connecting pipe. The gas blocking end assembly comprises a second end sleeve, a plurality of second fastening screws are evenly connected to the side face of the second end sleeve, a second stud is connected to the center of the second end sleeve in a threaded mode, and the upper end and the lower end of the second stud are connected with a second dismounting block and a second end touch plate respectively. The air tightness detection device has the characteristics of reasonable design, simple structure, good adaptability and convenience in use, and can efficiently complete air tightness detection.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection tools, and particularly relates to a stainless - steel joint for checking air tightness. Background Technique

[0002] The copper water jacket, also known as the cooling stave, is installed as a cooling device in the main area with high heat - flow intensity of metallurgical furnaces to prevent it from being damaged due to overheating, which may lead to forced shutdown of the furnace for major repairs. After stable slag formation, energy loss can be reduced. The copper water jacket works under harsh conditions of high temperature, high erosion, and high scouring, and requires good comprehensive properties such as thermal strength, oxidation resistance, heat - shock resistance, and resistance to rapid cooling and heating.

[0003] Due to its harsh working conditions, the technical requirements for copper water jackets are extremely strict: high purity to ensure heat - conduction performance; the fusion rate between the water - jacket body and the embedded copper pipe ≥92%; small deformation of the copper pipe to ensure the requirements of ball passing and flow rate; few casting defects, high density, and meeting the requirements of hydrostatic test.

[0004] Currently, when detecting the air tightness of copper water jackets, due to the lack of a detection device that can adapt to copper water jackets of different sizes and types, the detection time and cost are greatly increased, seriously affecting the detection efficiency. Summary of the Invention

[0005] The purpose of the utility model is to provide a stainless - steel joint for checking air tightness to solve the above - mentioned defects in the prior art.

[0006] A stainless - steel joint for checking air tightness includes an air - inflation end assembly and a gas - blocking end assembly, wherein:

[0007] The air - inflation end assembly includes a first end sleeve. A plurality of fastening screws one are evenly connected to the side surface of the first end sleeve. A first stud is thread - connected to the center of the first end sleeve. The upper and lower ends of the first stud are respectively connected with a first disassembly and assembly block and a first end contact plate. The first stud, the first disassembly and assembly block, and the first end contact plate are of an integrated structure and are coaxially provided with a ventilation hole inside.

[0008] The gas - blocking end assembly includes a second end sleeve. A plurality of fastening screws two are evenly connected to the side surface of the second end sleeve. A second stud is thread - connected to the center of the second end sleeve. The upper and lower ends of the second stud are respectively connected with a second disassembly and assembly block and a second end contact plate.

[0009] Preferably, a transition pipe is thread - connected to the top end of the first disassembly and assembly block, and an air - connection pipe is thread - connected to the top end of the transition pipe.

[0010] Preferably, a sealing ring is sleeved between the first disassembly and assembly block and the transition pipe.

[0011] Preferably, rectangular disassembly and assembly grooves are symmetrically arranged on the side surface of the transition pipe.

[0012] Preferably, there are three fastening screws in total, and the included angle between two adjacent ones is degrees. There are three fastening screws two in total, and the included angle between two adjacent ones is degrees.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] Fix the inflating end assembly and the air-blocking end assembly at both ends of the embedded copper pipe of the copper water jacket respectively. Then, fill high-pressure gas into the embedded copper pipe of the copper water jacket through the air connecting pipe, the transition pipe and the ventilation hole. Next, completely immerse the copper water jacket in water. Finally, observe whether there are bubbles on the surface of the copper water jacket, and the airtightness detection of the copper water jacket can be efficiently completed, and it can adapt to the airtightness detection of copper water jackets with different sizes and different types. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the whole utility model.

[0016] Figure 2 It is a bottom view structural schematic diagram of the whole utility model.

[0017] Figure 3 It is a structural schematic diagram of the overall assembly of the inflating end assembly.

[0018] Figure 4 It is an exploded structural schematic diagram of the overall inflating end assembly.

[0019] Figure 5 It is a partial sectional view structural schematic diagram of the inflating end assembly.

[0020] Figure 6 It is a structural schematic diagram of the overall assembly of the plug end assembly.

[0021] Figure 7 It is an exploded structural schematic diagram of the overall plug end assembly.

[0022] Wherein:

[0023] 10 - inflating end assembly; 11 - first end sleeve; 12 - first fastening screw; 13 - first stud; 14 - first disassembly and assembly block; 15 - first end contact plate; 15a - ventilation hole; 16 - transition pipe; 16a - disassembly and assembly groove; 17 - air connecting pipe; 18 - sealing ring;

[0024] 20 - plug end assembly; 21 - second end sleeve; 22 - second fastening screw; 23 - second stud; 24 - second disassembly and assembly block; 25 - second end contact plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As Figures 1 to 7 shown, a stainless-steel joint for checking air tightness includes an air-inflating end assembly 10 and an air-blocking end assembly 20, wherein:

[0027] The air-inflating end assembly 10 includes a first end sleeve 11. A plurality of fastening screws one 12 are evenly connected to the side surface of the first end sleeve 11. A first stud 13 is threadedly connected to the center of the first end sleeve 11. The upper and lower ends of the first stud 13 are respectively connected with a first disassembly and assembly block 14 and a first end contact plate 15. The first stud 13, the first disassembly and assembly block 14 and the first end contact plate 15 are of an integrated structure and a ventilation hole 15a is coaxially arranged inside thereof; the first end sleeve 11 is sleeved on one end of the embedded copper pipe of the copper water jacket, then the surrounding fastening screws one 12 are tightened, and then the first disassembly and assembly block 14 is rotated and through the transmission of the first stud 13, the first end contact plate 15 is tightly abutted against the end surface of this end of the embedded copper pipe.

[0028] The air-blocking end assembly 20 includes a second end sleeve 21. A plurality of fastening screws two 22 are evenly connected to the side surface of the second end sleeve 21. A second stud 23 is threadedly connected to the center of the second end sleeve 21. The upper and lower ends of the second stud 23 are respectively connected with a second disassembly and assembly block 24 and a second end contact plate 25. The second end sleeve 21 is sleeved on the other end of the embedded copper pipe of the copper water jacket, then the surrounding fastening screws two 22 are tightened, and then the second disassembly and assembly block 24 is rotated and through the transmission of the second stud 23, the second end contact plate 25 is tightly abutted against the end surface of this end of the embedded copper pipe.

[0029] In this embodiment, a transition pipe 16 is threadedly connected to the top end of the first disassembly and assembly block 14, and an air connection pipe 17 is threadedly connected to the top end of the transition pipe 16. High-pressure gas can be filled into the embedded copper pipe of the copper water jacket through the air connection pipe 17, the transition pipe 16 and the ventilation hole 15a.

[0030] In this embodiment, a sealing ring 18 is sleeved between the first disassembly and assembly block 14 and the transition pipe 16. The sealing performance between the first disassembly and assembly block 14 and the transition pipe 16 can be improved through the sealing ring 18.

[0031] In this embodiment, rectangular disassembly and assembly grooves 16a are symmetrically arranged on the side surface of the transition pipe 16. It is convenient to disassemble and assemble the transition pipe 16 through the disassembly and assembly grooves 16a.

[0032] In this embodiment, there are three fastening screws 12 in total, and the included angle between two adjacent ones is 120 degrees. There are three fastening screws 22 in total, and the included angle between two adjacent ones is 120 degrees. The end sleeve 11 of the inflation end assembly 10 can be fixed to one end of the embedded copper pipe of the copper water jacket by the three fastening screws 12, and the end sleeve 21 of the air-blocking end assembly 20 can be fixed to the other end of the embedded copper pipe of the copper water jacket by the three fastening screws 22.

[0033] The usage method of this stainless-steel joint for checking airtightness:

[0034] S1: Set the end sleeve 11 on one end of the embedded copper pipe of the copper water jacket, then tighten the surrounding fastening screws 12. Then turn the disassembly and assembly block 14 and through the transmission of the stud 13, tightly press the end contact plate 15 against the end face of this end of the embedded copper pipe.

[0035] S2: Set the end sleeve 21 on the other end of the embedded copper pipe of the copper water jacket, then tighten the surrounding fastening screws 22. Then turn the disassembly and assembly block 24 and through the transmission of the stud 23, tightly press the end contact plate 25 against the end face of this end of the embedded copper pipe.

[0036] S3: Fill high-pressure gas into the embedded copper pipe of the copper water jacket through the gas connection pipe 17, the transition pipe 16 and the ventilation hole 15a. Then completely immerse the copper water jacket in water and observe whether there are bubbles on the surface of the copper water jacket.

[0037] Therefore, the above-disclosed implementation schemes are, in all aspects, merely illustrative and not exclusive. All changes within the scope of this utility model or within the scope equivalent to this utility model are encompassed by this utility model.

Claims

1. A stainless steel joint for checking air tightness, characterized in that: It comprises an inflation end assembly (10) and an air blocking end assembly (20), wherein: The inflation end assembly (10) comprises an end sleeve (11), a side surface of the end sleeve (11) is evenly connected to a plurality of fastening screws (12), a central thread of the end sleeve (11) is connected to a stud (13), upper and lower ends of the stud (13) are respectively connected to a disassembly block (14) and an end touch plate (15), the stud (13), the disassembly block (14) and the end touch plate (15) are an integrated structure and a vent hole (15a) is coaxially provided therein; The gas blocking end assembly (20) comprises an end sleeve (21), a side surface of which is evenly connected to a plurality of fastening screws (22), a central thread of which is connected to a stud (23), and upper and lower ends of the stud (23) are respectively connected to a disassembly block (24) and an end touch plate (25).

2. A stainless steel joint for checking air tightness according to claim 1, characterized in that: The top end of the disassembly block 1 (14) is threadedly connected to a transition pipe (16), and the top end of the transition pipe (16) is threadedly connected to an air connection pipe (17).

3. A stainless steel joint for checking air tightness according to claim 2, characterized in that: A sealing ring (18) is sleeved between the disassembly block 1 (14) and the transition pipe (16).

4. A stainless steel joint for checking air tightness according to claim 2, characterized in that: The side surface of the transition pipe (16) is symmetrically provided with rectangular disassembly and assembly grooves (16a).

5. The stainless steel joint for checking air tightness according to claim 1, characterized in that: There are three fastening screws (12) in total and the angle between two adjacent ones is 120 degrees. There are three fastening screws (22) in total and the angle between two adjacent ones is 120 degrees.

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