CN117553979A - Special flange measuring point air tightness detection device and detection method thereof - Google Patents
Special flange measuring point air tightness detection device and detection method thereof Download PDFInfo
- Publication number
- CN117553979A CN117553979A CN202311456684.1A CN202311456684A CN117553979A CN 117553979 A CN117553979 A CN 117553979A CN 202311456684 A CN202311456684 A CN 202311456684A CN 117553979 A CN117553979 A CN 117553979A
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- pressing tool
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a special flange measuring point air tightness detection device and a detection method thereof. The detection device comprises a bracket, a vacuum cavity, a screw rod and a special pressing tool; the vacuum cavity is fixedly arranged at the bottom of the bracket, and the top end of the vacuum cavity is in sealing contact with the special flange to be detected to provide a vacuum environment for the special flange to be detected; the screw rod is in threaded connection with the upper part of the bracket and is positioned right above the special pressing tool, and the special pressing tool is pressed when the screw rod is screwed downwards; the special pressing tool is matched with the special flange structure to be detected, and the special pressing tool and the special flange structure to be detected are in sealing contact; and the special pressing tool seals and presses the special flange to be detected downwards on the vacuum cavity for detection. And a special vacuum chamber is designed according to the height of the special flange, and meanwhile, the bolt fastening mode is changed, and the screw rod is combined with a special pressing tool to press the sealing structure so as to realize sealing, so that the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a special flange measuring point air tightness detection device and a detection method thereof.
Background
In each test process of special equipment, different measuring points are required to be arranged in the equipment, and each test parameter is accurately collected. And therefore requires modification of the dedicated flange. Because the special flange is a part of the sealing structure of the equipment, the sealing performance of the special flange can be influenced by the remanufacturing, and therefore, the air tightness of the special flange needs to be detected after the remanufacturing. Because the special flange is only a part of the sealing structure, the special flange needs to be installed on special equipment for tightness detection, and time and labor are wasted.
Therefore, a special flange measuring point air tightness detection device is required to be designed, the detection flow is simplified, and the detection efficiency is improved.
Disclosure of Invention
The invention aims to provide a special flange measuring point air tightness detection device aiming at the technical defects that the special flange air tightness detection in the prior art is time-consuming and labor-consuming.
The invention further aims to provide a detection method of the special flange measuring point air tightness detection device.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a special flange measuring point air tightness detection device comprises a bracket, a vacuum cavity, a screw rod and a special pressing tool;
the vacuum cavity is fixedly arranged at the bottom of the bracket, and the top end of the vacuum cavity is in sealing contact with the special flange to be detected to provide a vacuum environment for the special flange to be detected;
the screw rod is in threaded connection with the upper part of the bracket and is positioned right above the special pressing tool, and the special pressing tool is pressed when the screw rod is screwed downwards;
the special pressing tool is matched with the special flange structure to be detected, and the special pressing tool and the special flange structure to be detected are in sealing contact; and the special pressing tool seals and presses the special flange to be detected downwards on the vacuum cavity for detection.
In the above technical scheme, the bracket comprises a bottom plate, a supporting side plate and a top plate which are integrally connected.
In the technical scheme, a threaded hole is formed in the middle of the top plate; the screw rod passes through the threaded hole and is in threaded connection with the top plate; the vacuum cavity is fixedly arranged in the middle of the bottom plate.
In the above technical solution, the top of the vacuum cavity is open; the top end of the device extends outwards to form an epitaxial end face; the extension end face is matched with the sealing face of the special flange to be detected.
In the technical scheme, a gasket is arranged between the extension end face and the sealing face of the special flange to be detected.
In the technical scheme, the central position of the special pressing tool is upwards protruded to form a stress surface which is contacted with the lower end surface of the screw rod to transmit pressure.
In the technical scheme, the central position of the special pressing tool extends downwards to form an annular bulge; the annular bulge is matched with the groove on the special flange to be detected.
In the above technical scheme, a sealing gasket is arranged between the annular protrusion and the groove.
In the above technical scheme, the ends of the four pressure guide rods on the special presser are bent downwards to be pressed on the special flange to be detected, and the pressure received by the stress surface is conducted to the special flange to be detected.
In another aspect of the present invention, the detection method of the special flange measurement point air tightness detection device includes the following steps:
step 1: placing a special flange to be detected on the vacuum cavity to enable the flange to be detected and the vacuum cavity to be in sealing fit;
step 2: placing the special pressing tool on a special flange to be detected, and adjusting the angle to ensure that the special pressing tool is in stable contact with the special flange to be detected;
step 3: the screw rod is rotated downwards to enable the lower end face of the screw rod to be in close contact with the special pressing tool, so that the special pressing tool and a special flange to be detected are ensured to be pressed;
step 4: and vacuumizing the vacuum cavity, and detecting the air tightness.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the special flange measuring point air tightness detection device provided by the invention, the special vacuum chamber is designed according to the height of the special flange, the bolt fastening mode is changed, and the screw rod is combined with the special pressing tool to press the sealing structure to realize sealing, so that the efficiency is improved.
2. The detection method of the special flange measuring point air tightness detection device provided by the invention has the advantages of less assembly steps, simplified flow and high efficiency.
Drawings
FIG. 1 is a cross-sectional view of a dedicated flange station tightness detection device;
FIG. 2 shows a cross-sectional view of a special press;
fig. 3 shows a top view of the special presser.
In the figure: the device comprises a 1-bracket, a 1-1-bottom plate, a 1-2-supporting side plate, a 1-3-top plate, a 2-vacuum cavity, a 2-1-extension end face, a 2-2-vacuumizing port, a 3-screw rod, a 4-special presser, a 4-1-stress surface, a 4-2-annular bulge, a 4-3-pressure guiding rod, a 5-special flange to be detected, a 6-gasket and a 7-sealing gasket.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A special flange measuring point air tightness detection device is shown in fig. 1, and comprises a bracket 1, a vacuum cavity 2, a screw rod 3 and a special presser 4.
The vacuum cavity 2 is fixedly arranged at the bottom of the bracket 1, and the top end of the vacuum cavity is in sealing contact with the special flange 5 to be detected, so that a vacuum environment is provided for the special flange 5 to be detected.
The screw rod 3 is in threaded connection with the upper part of the bracket 1, is positioned right above the special presser 4, and presses the special presser 4 when screwed downwards.
The special presser 4 is matched with the special flange 5 to be detected in structure, and the special presser 4 and the special flange are in sealing contact; the special pressing tool 4 seals and presses the special flange 5 to be detected downwards on the vacuum cavity 2 for detection.
Example 2
This embodiment describes detailed structural information based on embodiment 1.
Specifically, the bracket 1 includes a bottom plate 1-1, a support side plate 1-2, and a top plate 1-3 integrally connected. Threaded holes are formed in the middle of the top plate 1-3; the screw rod 3 passes through the threaded hole and is in threaded connection with the top plate 1-3. The vacuum cavity 2 is fixedly arranged in the middle of the bottom plate 1-1. The screw rod 3, the special presser 4, the special flange 5 to be detected and the vacuum cavity 2 are positioned on the same central shaft from top to bottom.
Specifically, the top of the vacuum cavity 2 is open; the top end of the material extends outwards to form an extension end face 2-1; the extension end face 2-1 is matched with a sealing face of the special flange 5 to be detected. A gasket 6 is arranged between the extension end face 2-1 and the sealing surface of the special flange 5 to be detected. The side wall of the vacuum cavity 2 is provided with a vacuumizing port 2-2 which can be connected with an external pipeline and a vacuum pump to provide a vacuum environment for the vacuum cavity 2.
Specifically, the central position of the special presser 4 is raised upwards to form a stress surface 4-1 which is contacted with the lower end surface of the screw rod 3 to transmit pressure. The central position of the special presser 4 extends downwards to form an annular bulge 4-2; the annular bulge 4-2 is matched with the groove on the special flange 5 to be detected, and a sealing gasket 7 is arranged between the annular bulge and the groove to realize sealing contact between the special presser 4 and the special flange 5 to be detected. The ends of the four pressure guide rods 4-3 on the special presser 4 are bent downwards to be pressed on the special flange 5 to be detected, and the pressure received by the stress surface 4-1 of the special presser 4 is conducted to the special flange 5 to be detected.
Example 3
This example describes the detection method based on examples 1 and 2.
A detection method of a special flange measuring point air tightness detection device comprises the following steps:
step 1: installing a gasket 6 on the special flange 5 to be detected, and placing the special flange 5 to be detected on the vacuum cavity 2, so that the sealing surface of the special flange 5 to be detected is matched with the extension end surface 2-1 above the vacuum cavity 2;
step 2: placing the sealing gasket 7 and the special pressing tool 4 on the special flange 5 to be detected, and adjusting the angle to ensure that the special pressing tool 4 is in stable contact with the special flange 5 to be detected;
step 3: the screw rod 3 is rotated downwards to enable the lower end face of the screw rod 3 to be in close contact with the stress face 4-1 of the special presser 4, so that the special presser 4 and the special flange 5 to be detected are ensured to be pressed;
step 4: and vacuumizing the vacuum cavity 2 through the vacuumizing port 2-2, and detecting the air tightness.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A special flange measurement station gas tightness detection device which is characterized in that: comprises a bracket, a vacuum cavity, a screw rod and a special pressing tool;
the vacuum cavity is fixedly arranged at the bottom of the bracket, and the top end of the vacuum cavity is in sealing contact with the special flange to be detected to provide a vacuum environment for the special flange to be detected;
the screw rod is in threaded connection with the upper part of the bracket and is positioned right above the special pressing tool, and the special pressing tool is pressed when the screw rod is screwed downwards;
the special pressing tool is matched with the special flange structure to be detected, and the special pressing tool and the special flange structure to be detected are in sealing contact; and the special pressing tool seals and presses the special flange to be detected downwards on the vacuum cavity for detection.
2. The special flange measuring point air tightness detection device according to claim 1, wherein: the support comprises a bottom plate, a supporting side plate and a top plate which are integrally connected.
3. The special flange measuring point air tightness detection device according to claim 2, wherein: the middle part of the top plate is provided with a threaded hole; the screw rod passes through the threaded hole and is in threaded connection with the top plate;
the vacuum cavity is fixedly arranged in the middle of the bottom plate.
4. The special flange measuring point air tightness detection device according to claim 1, wherein: the top of the vacuum cavity is opened; the top end of the device extends outwards to form an epitaxial end face; the extension end face is matched with the sealing face of the special flange to be detected.
5. The special flange measuring point air tightness detection device according to claim 4, wherein: and a gasket is arranged between the extension end face and the sealing face of the special flange to be detected.
6. The special flange measuring point air tightness detection device according to claim 1, wherein: the central position of the special pressing tool protrudes upwards to form a stress surface which is contacted with the lower end surface of the screw rod to transmit pressure.
7. The special flange measuring point air tightness detection device according to claim 1, wherein: the center of the special pressing tool extends downwards to form an annular bulge; the annular bulge is matched with the groove on the special flange to be detected.
8. The special flange measuring point air tightness detection device according to claim 7, wherein: and a sealing gasket is arranged between the annular bulge and the groove.
9. The special flange measuring point air tightness detection device according to claim 6, wherein: the ends of the four pressure guide rods on the special pressing tool are bent downwards to be pressed on the special flange to be detected, and the pressure received by the stress surface is conducted to the special flange to be detected.
10. The detection method of the special flange measuring point air tightness detection device according to any one of claims 1 to 9, wherein: the method comprises the following steps:
step 1: placing a special flange to be detected on the vacuum cavity to enable the flange to be detected and the vacuum cavity to be in sealing fit;
step 2: placing the special pressing tool on a special flange to be detected, and adjusting the angle to ensure that the special pressing tool is in stable contact with the special flange to be detected;
step 3: the screw rod is rotated downwards to enable the lower end face of the screw rod to be in close contact with the special pressing tool, so that the special pressing tool and a special flange to be detected are ensured to be pressed;
step 4: and vacuumizing the vacuum cavity, and detecting the air tightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311456684.1A CN117553979A (en) | 2023-11-03 | 2023-11-03 | Special flange measuring point air tightness detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311456684.1A CN117553979A (en) | 2023-11-03 | 2023-11-03 | Special flange measuring point air tightness detection device and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117553979A true CN117553979A (en) | 2024-02-13 |
Family
ID=89819565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311456684.1A Pending CN117553979A (en) | 2023-11-03 | 2023-11-03 | Special flange measuring point air tightness detection device and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117553979A (en) |
-
2023
- 2023-11-03 CN CN202311456684.1A patent/CN117553979A/en active Pending
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