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Bellows air tightness testing equipment and testing method

A technology for air tightness detection and bellows, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement and measuring the acceleration and deceleration rate of fluid, etc., can solve the problems of low detection accuracy, no bellows, waste of water resources, etc. , to achieve the effect of high air tightness detection accuracy, novel structure and good consistency

Active Publication Date: 2019-09-20
SUZHOU MENGCHUAN AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency of water inspection is low, the detection accuracy is low, and it cannot meet the detection needs of high-precision bellows. At the same time, water inspection will also cause waste of water resources and pollution of water resources.
[0003] In addition, the industry also tries to test the airtightness of pipelines by means of air testing, and thus produces airtightness testing equipment. However, the existing airtightness testing equipment is made for rigid pipeline testing, and for bellows , and even other elastic pipes have no corresponding testing equipment, rigid pipeline testing equipment is not suitable for testing bellows

Method used

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  • Bellows air tightness testing equipment and testing method
  • Bellows air tightness testing equipment and testing method
  • Bellows air tightness testing equipment and testing method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] Such as figure 1 , 2As shown, this embodiment discloses a bellows airtightness testing device for testing the airtightness of two bellows, including an electrical cabinet 2, and the electrical cabinet 2 is provided with an electrical installation board 4 and an air circuit installation board 6 The top of the electrical cabinet 2 is provided with a workbench bottom plate 8, and all the electrical lines and gas pipelines of the electric console 3 detection equipment are installed on the workbench bottom plate 8 through a pillar, respectively installed on the electrical installation board 4 and the gas pipeline in the electrical cabinet 2. On the road mounting plate 6, place neatly. Several airtightness detection fixtures 10 that work independently are installed on the described workbench bottom plate 8. In order to improve efficiency, in this implementation, preferably one detection equipment is equipped with two airtightness detection fixtures 10, which can double the a...

Embodiment 2

[0040] Such as image 3 , 4 As shown, this embodiment discloses a bellows airtightness detection device, which is used to cooperate with the detection of the airtightness of the three-port bellows. The difference between the detection device in the second embodiment and the detection device in the first embodiment is only that : Cooperate with the bellows for detecting three ports, three inner cavity sealing heads 12 and three outer wall seal clamping assemblies 14 are arranged on the mounting plate 28, and the three inner cavity sealing heads 12 are all fixed on the outer wall sealing clamps matched therewith On the fixed clamping part 8 of the component 14, two of the outer wall sealing clamping components 14 are fixedly arranged on the mounting plate 28, and the third outer wall sealing clamping component 14 is arranged on the On the slide rail bottom plate 30, the sliding clamping parts 10 of the two outer wall seal clamping assemblies 14 are arranged on the mounting plat...

Embodiment 3

[0043] Such as Figure 5 As shown, this embodiment discloses a detection method using the above-mentioned detection equipment to detect the airtightness of the bellows, including the following steps:

[0044] S1: Tube installation, corresponding to the number of nozzles of the bellows 1, select multiple pairs of inner cavity sealing heads 12 and outer wall sealing clamping components 14, insert the inner cavity sealing heads 12 from the nozzle of the bellows 1, and then install The bellows 1 with the lumen sealing head 12 is placed in the first jaw 42, and one side of the outer wall of the end of the bellows 1 is clamped by the first jaw 42, and the above-mentioned steps are repeated for each mouth of the bellows 1. The action completes the loading action of the bellows 1, and then safely starts the detection equipment;

[0045] S2: The nozzle is sealed and clamped, and the first cylinder 26 is controlled to start the process, so that the second clamping mouth 44 on the slidi...

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Abstract

A bellows airtightness detection device seals a pipeline end portion through an inner chamber plugging head and an outer wall sealing and clamping assembly, so that sealing space is formed in a pipeline inner chamber. Gas is injected to the sealing inner chamber through a gas injection hole. The airtightness performance of the bellows is detected by detecting the pressure change of the inner chamber through a pressure detection device. The bellows airtightness detection device has the characteristics of novel structure, simple operation, high precision of airtightness detection, and good consistency of bellows batch detection. At the same time, two detection fixtures which work independently are preferably arranged for one detection device. The detection of the two bellows can be performed at one station, and the double detection efficiency can be reached. Furthermore, considering that the bellows shakes under the action of an air pressure impact force in a process of injecting gas into the pipeline inner chamber, the whole outer wall sealing and clamping assembly which is optimally designed is a movable part, and the damage to the bellows caused by the vibration of the bellows in a detection process is overcome in comparison with a fixed device.

Description

technical field [0001] The invention belongs to the technical field of bellows air tightness detection, and in particular relates to bellows air tightness detection equipment and a detection method thereof. Background technique [0002] Existing corrugated pipe testing methods generally use water pressure testing. The detection method is to seal both ends of the corrugated pipe to be tested, place it in water after pressurization, and judge whether the pipe body leaks according to whether there is bubbles, so as to detect the corrugated pipe. air tightness. The efficiency of water inspection is low, the detection accuracy is low, and it cannot meet the detection needs of high-precision bellows. At the same time, water inspection will also cause waste of water resources and pollution of water resources. [0003] In addition, the industry also tries to test the airtightness of pipelines by means of air testing, and thus produces airtightness testing equipment. However, the ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28
Inventor 戴龙渠姚友福
Owner SUZHOU MENGCHUAN AUTOMATION TECH
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