WO2023087338A1 - 气瓶气密性检测方法及装置 - Google Patents
气瓶气密性检测方法及装置 Download PDFInfo
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- WO2023087338A1 WO2023087338A1 PCT/CN2021/132658 CN2021132658W WO2023087338A1 WO 2023087338 A1 WO2023087338 A1 WO 2023087338A1 CN 2021132658 W CN2021132658 W CN 2021132658W WO 2023087338 A1 WO2023087338 A1 WO 2023087338A1
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the invention relates to a gas cylinder air tightness detection method and device.
- the gas cylinder As the main container for storing gas, the gas cylinder is convenient for transportation during the process of convenient storage, has strong transportation and storage stability, and is convenient for transportation and storage of gas. Among them, the airtightness of gas cylinders is an important product index, which directly determines the qualified rate of gas cylinders.
- the traditional method is to pressurize and inflate the gas cylinder, and detect the air pressure in the gas cylinder to determine the airtightness of the gas cylinder.
- each gas cylinder As a gas source for inflation, it is necessary to continuously fill each gas cylinder with gas, that is, each gas cylinder is individually tested, so that the air tightness detection of each gas cylinder is a repeated step, so that the gas of the gas cylinder
- the tightness detection takes a long time, which in turn makes the efficiency of the airtightness detection of the gas cylinders low, seriously affecting the utilization rate of the gas cylinders.
- a gas cylinder airtightness testing method comprising:
- the return valve of the gas cylinder group and the intake valve of the next gas cylinder group are opened, so that the gas cylinder group is used as the gas of the next gas cylinder group. source.
- a gas cylinder airtightness detection device comprising: a bracket, an inflation module and a detection module; the bracket is used to place a plurality of gas cylinder groups; the inflation module is connected to the bracket, and the inflation module The gas cylinders in the gas cylinder group are connected, and the inflation module is used to inflate the gas cylinder group to obtain the air pressure of the gas cylinder; the detection module is connected to the support, and the detection module is used to detect the gas cylinder Whether the air pressure matches the preset air pressure; when the gas cylinder air pressure matches the preset air pressure, open the return valve of the gas cylinder group and the intake valve of the next gas cylinder group, so that the gas cylinder group As the gas source for the next cylinder group.
- Fig. 1 is a flowchart of a gas cylinder airtightness detection method in an embodiment.
- FIG. 1 is a flowchart of a gas cylinder airtightness testing method according to an embodiment of the present invention.
- the gas cylinder airtightness detection method includes part or all of the following steps.
- the gas cylinder group is a gas cylinder group that currently needs to be tested for air tightness
- each gas cylinder group contains a plurality of gas cylinders, that is, each gas cylinder group is composed of a plurality of gas cylinders,
- a plurality of gas cylinders form a gas cylinder group, and are fixed on the bracket, so that the gas cylinders of each group can be inflated simultaneously.
- each gas cylinder of the gas cylinder group After inflating each gas cylinder of the gas cylinder group, the air pressure of each gas cylinder in the gas cylinder group remains the same by filling the gas in the gas source into the gas cylinder, which is convenient for the same group Multiple gas cylinders are inflated at the same time, so that it is convenient to ensure that the obtained gas cylinder pressure is the gas pressure in each gas cylinder, which avoids checking each gas cylinder one by one.
- the preset air pressure is the standard pressure of the gas used to detect the airtightness of each gas cylinder in the gas cylinder group
- the gas cylinder pressure is the real-time air pressure of the detection gas filled into the gas cylinder.
- the air pressure of each gas cylinder in the gas cylinder group is controlled. After the gas cylinder group is inflated, the air pressure of the gas cylinders in the gas cylinder group is collected, that is, the air pressure of the gas cylinder, to realize the filling of the gas cylinder
- the pressure of the gas is monitored, so that the pressure of the detection gas filled in the gas cylinder reaches the specified pressure, so that it is convenient to accurately detect the air tightness of the gas cylinder.
- Matching and comparing the air pressure of the gas cylinder with the preset air pressure is to determine whether the air pressure of the gas filled in the gas cylinder reaches the standard air pressure, so that the gas cylinder can be accurately airtight according to the gas that reaches the standard air pressure. To improve the accuracy of air tightness detection of gas cylinders.
- the air pressure of the gas cylinder matches the preset air pressure, indicating that the air pressure of the detection gas charged into the gas cylinder meets the detection standard, that is, it indicates that the pressure of the detection gas charged into the gas cylinder
- the detection standard air pressure is reached, which means that the air pressure of the gas in each gas cylinder in the gas cylinder group is the specified detection air pressure.
- the airtightness of the gas cylinder is in a qualified state at this time, that is, the airtightness of the gas cylinder is good.
- the current gas cylinder group Open the gas return valve of the current gas cylinder group to facilitate the export of the detection gas in the current gas cylinder group. into the next gas cylinder group, so that the detection gas in the current gas cylinder group is used as the source of the detection gas of the next gas cylinder group, so that the gas for detecting the air tightness of the gas cylinders circulates between the gas cylinder groups, which is convenient for detection
- the repeated use of gas reduces the amount of gas used for detection, thereby reducing the cost of gas-tightness detection of gas cylinders.
- the airtightness of each gas cylinder in the current gas cylinder group is determined. Good, then fill the gas in the current cylinder group into the next gas cylinder group through the return valve and the intake valve, that is, the gas in the current gas cylinder group will be used as the gas source for the next gas cylinder group, so that it can be used for
- the gas used for air tightness testing is reused, which reduces the time for gas pressurization when testing different gas cylinder groups, thereby improving the efficiency of testing the air tightness of the gas cylinders.
- the application also reduces the amount of gas used, thereby reducing the cost of gas cylinder airtightness testing.
- the charging process of the gas cylinder group includes: obtaining the inlet pressure of the gas cylinder group; detecting whether the inlet pressure is less than or equal to the preset inlet pressure; When the air pressure is less than or equal to the preset inlet air pressure, a start signal is sent to the screw air compressor to provide the gas cylinder group with air-tightness detection gas for the gas cylinder.
- the inlet pressure is the gas pressure in the air pipe connected to the gas cylinder, which is the collection of the gas pressure of the detection gas charged into the gas cylinder, so as to realize real-time monitoring of the gas pressure charged into the gas cylinder. Monitoring to facilitate the determination of the gas pressure conditions filled into the gas cylinders.
- the preset inlet pressure is the standard charging pressure of the gas in the trachea, and when the gas cylinder is tested for air tightness, the preset inlet pressure is the specified pressure during the test. Detecting whether the inlet pressure is less than or equal to the preset inlet pressure is to detect the current air pressure to be filled into the gas cylinder. Only after it is determined that the inlet pressure reaches the preset inlet pressure can the It is convenient to accurately detect the airtightness of the gas cylinder.
- the inlet pressure is less than or equal to the preset inlet pressure, indicating that the pressure of the detection gas in the gas pipe connected to the gas cylinder has not yet reached the standard pressure, that is, indicating the pressure of the detection gas to be filled into the gas cylinder
- the air pressure is lower than the test standard, that is, the gas to be filled in the cylinder does not meet the standard. In this way, at this time, the amount of gas in the gas pipe connected to the gas cylinder is small, which cannot be used to detect the air tightness of the gas cylinder.
- a start signal is sent to the screw air compressor to make the screw air compressor
- the machine is used as a gas source to supplement the detection gas, and provides a sufficient amount and pressure of the gas cylinder airtightness detection gas for the current gas cylinder group.
- the preset inlet pressure is 0.5MPA to 0.8MPA, for example, the preset inlet pressure is 0.6MPA, and this pressure is used as the detection pressure to distinguish the gas volume of the detection pressure in the trachea, It is convenient to determine whether it is necessary to supplement the gas through an external screw air compressor to ensure that the gas volume of the detection gas is sufficient.
- the detecting whether the intake air pressure is less than or equal to the preset intake pressure further includes: when the intake air pressure is higher than the preset intake pressure, sending a boost signal to the gas booster pump , so as to pressurize the air-tightness detection gas of the gas cylinder.
- the inlet pressure is greater than the preset inlet pressure, which indicates that the pressure of the detection gas in the air pipe connected to the gas cylinder has reached the standard pressure, that is, it indicates that the detection gas is ready to be filled into the gas cylinder.
- the air pressure of the gas meets the standard air pressure of the test, that is, the gas to be filled into the gas cylinder meets the standard.
- the gas for the test gas can be used as the gas for testing the airtightness of the gas cylinder.
- the amount of gas also meets the requirements.
- pressurize the detected gas that is, send a boost signal to the gas booster pump to pressurize the air tightness detection gas of the gas cylinder, so that the pressure of the gas filled in the gas cylinder continues to increase, It is convenient to form a gas pressure for detecting the airtightness of the gas cylinder in the gas cylinder, so as to facilitate the subsequent determination of the airtightness of the gas cylinder according to the change of the pressure of the gas for detection after pressurization.
- sending a boost signal to the gas booster pump to boost the gas cylinder air tightness detection gas including: when the inlet pressure is stronger than the preset inlet pressure, the gas booster pump is turned on to obtain the inflation pressure of the air-tightness detection gas of the gas cylinders charged into the gas cylinder group; whether the inflation pressure is detected greater than or equal to the preset inflation pressure; when the inflation pressure is greater than or equal to the preset inflation pressure, the inflation pressure is used as the gas cylinder pressure.
- the gas booster pump is turned on, so that the pressure of the gas charged into the gas cylinder is increased, so that the air in the gas cylinder
- the gas meets the requirements of air tightness testing.
- the gas charged into the gas cylinder is in the trachea. After filling into the gas cylinder with a larger internal space, the gas pressure in the gas cylinder will gradually increase. Real-time monitoring of the air pressure in order to determine the change of air pressure in the gas cylinder, avoiding the situation of excessive or under-pressure in the gas cylinder. Comparing the inflation pressure with the preset inflation pressure is to compare the pressure of the detection gas in the gas cylinder with the standard air tightness detection pressure.
- the inflation pressure is greater than or equal to the preset inflation pressure, indicating that the gas cylinder is filled with detection gas, and the pressure of the detection gas at this time is the same as the pressure in the trachea, which means that the pressure of the gas filled in the gas cylinder conforms to
- the air pressure for detecting air tightness the air pressure of the gas filled into the gas cylinder at this time is the air pressure of the gas cylinder, which is used as the gas pressure for air tightness detection of the gas cylinder, which is convenient for accurate detection of the air tightness of the gas cylinder.
- the detecting whether the inflation pressure is greater than or equal to the preset inflation pressure further includes: when the inflation pressure is lower than the preset inflation pressure, sending a continuous increase and refill signal to the gas booster pump, In order to continue to increase the pressure of the gas charged into the gas cylinder group.
- the inflation pressure is less than the preset inflation pressure, indicating that the gas cylinder is not filled with the detection gas, and the pressure of the detection gas at this time is lower than the pressure in the trachea, which indicates that the gas in the gas cylinder If the air pressure does not meet the air pressure for air tightness detection, it means that the detection gas in the gas cylinder is still in the inflation stage.
- a continuous increase and refill signal is sent to the gas booster pump, so that the gas in the gas cylinder group
- the pressure of the gas continues to increase, which is convenient for filling the detection gas in the gas cylinder and reaching the pressure for detecting the airtightness of the gas cylinder, thereby facilitating accurate detection of the airtightness of the gas cylinder.
- the detecting whether the air pressure of the gas cylinder matches the preset air pressure includes: detecting whether the air pressure of the gas cylinder is greater than or equal to the preset air pressure; When the preset air pressure is used, it is detected whether the duration of the gas cylinder air pressure is greater than or equal to the preset airtight time.
- the preset air pressure is the standard detection air pressure in the gas cylinder as a reference air pressure for detecting the airtightness of the gas cylinder
- the air pressure of the gas cylinder is the air pressure of the detection gas filled into the gas cylinder, that is,
- the gas cylinder air pressure is the real-time air pressure in the gas cylinder, and is used to detect whether the air pressure in the gas cylinder can be maintained.
- the air pressure of the gas cylinder is greater than or equal to the preset air pressure, indicating that the air pressure of the detection gas in the gas cylinder meets the pressure required for detection, that is, it indicates that the detection gas in the gas cylinder is full at this time, that is, it indicates that the air pressure in the gas cylinder is full.
- the gas cylinder is in or is about to enter the stage of air tightness testing. In this way, after confirming that the detection gas in the gas cylinder meets the requirements, in order to accurately detect the airtightness of the gas cylinder, it is necessary to detect the duration of the detection gas in the gas cylinder to determine whether the gas cylinder has good airtightness Detectability, that is, to determine whether the detection gas in the gas cylinder is leaking.
- the gas source of the gas cylinder group includes: introducing the gas in the gas cylinder group to the next gas cylinder group when the duration is greater than or equal to the preset airtight time.
- the preset airtight time is the duration of the airtightness test of the gas cylinder, that is, the time during which the detected gas is in the gas cylinder at the preset pressure, that is, when the airtightness of the gas cylinder is qualified , to detect the standard time for the gas pressure in the gas cylinder to be the preset pressure.
- the duration is greater than or equal to the preset airtight time, which indicates that under the preset air pressure, the duration of the detection gas in the gas cylinder reaches the preset airtight time, which means that under the standard detection air pressure, the detection gas is
- the time in the gas cylinder reaches the standard airtight detection time, which means that each gas cylinder in the current gas cylinder group is a gas cylinder that is qualified for airtightness. In this way, at this time, by opening the return valve of the current gas cylinder group and the intake valve of the next gas cylinder group, it is convenient to fill the detection gas in the current gas cylinder group into the next gas cylinder group, so that the detection gas can be reused.
- the preset air pressure is 15MPA to 35MPA.
- the preset air pressure is 20MPA. According to the specifications and materials of each gas cylinder group, the pressure of the detection gas in the gas cylinder is adjusted accordingly, so that Carry out air tightness testing on different gas cylinders.
- the gas cylinders of the gas cylinder group are placed side by side on the bracket, and then the air inlet valve is aligned with the gas nozzle of the gas cylinder, and the air inlet valve It is fixed on the gas nozzle so that the inlet valve is stably connected with the gas nozzle of the gas cylinder, so that it is convenient to fill the gas cylinder with detection gas.
- the gas cylinder group is inflated to obtain the gas cylinder pressure.
- a position deviation alarm signal is sent to the airtight monitoring system, so that the intake valve is closed.
- the image of the intake valve is a connection structure image of the intake valve and the air nozzle at the connection position
- the intake valve has a first positioning point
- the first positioning coordinate is relative to the first positioning point.
- the position coordinates of the positioning point on the image of the intake valve, and the coordinates of the valve nozzle are the position coordinates of the top of the valve valve on the image of the intake valve.
- Performing height processing on the first positioning coordinates and the air nozzle coordinates is to calculate the height difference between the first positioning coordinates and the air nozzle coordinates to obtain the first positioning point and the air nozzle coordinates.
- the difference in the height positions between the tops that is, the positioning height.
- the preset height is the difference between the standard height position, that is, the distance between the first positioning point of the intake valve and the top of the air nozzle when the intake valve is completely engaged with the air nozzle.
- the positioning height is greater than the preset height, indicating that the current position of the first positioning point of the intake valve is higher than the top of the air nozzle, that is, indicating that the intake valve protrudes above the intake valve.
- the top of the nozzle indicates that the intake valve is not aligned with the air nozzle.
- the gas inlet valve is closed to avoid charging the gas cylinder with detection gas through the gas inlet valve, and it is also convenient for monitoring personnel to adjust the gas inlet valve in time.
- the intake valve image acquires the first positioning coordinates and the valve coordinates, and then further includes the following steps:
- bit height difference value is smaller than a preset bit difference, wherein the preset bit difference is the length between the first positioning coordinate and the second positioning coordinate;
- a position inclination alarm signal is sent to the airtight monitoring system to close the intake valve.
- the second positioning point corresponding to the second positioning coordinates is located on the intake valve, and the second positioning point corresponding to the second positioning coordinates is set far from the valve nozzle. Next, the second positioning point is located on the same vertical line as the first positioning point.
- Performing difference processing on the first positioning coordinates, the second positioning coordinates, and the gas nozzle coordinates is to calculate the height of the first positioning point protruding from the gas nozzle, and the second positioning point point protrudes from the height of the air nozzle, and calculate the height difference for the above two heights to obtain the difference value of the position height of the two positioning points on the intake valve, to ensure that the two positioning points on the intake valve There is no error in the height difference between the positioning points, and the difference accuracy of the position heights of the two positioning points on the intake valve is improved.
- the preset level difference is the length between the first positioning coordinate and the second positioning coordinate, and the level difference value is smaller than the preset level difference, indicating that the The straight line formed by the two positioning points is in an inclined state, which means that the air intake valve and the air nozzle are in an inclined state, that is, it indicates that the air intake valve is obliquely arranged on the air nozzle, At this time, the intake valve is not aligned with the air nozzle. At this time, an inclination alarm signal is sent to the airtight monitoring system, so that the intake valve can be closed in time, and the leakage of the detected gas can be further reduced.
- the gas nozzle of the gas cylinder needs to be plugged and pulled out frequently, which may easily lead to damage to the gas nozzle, thereby causing gas leakage from the gas nozzle.
- the detection method Whether the above-mentioned positioning height is greater than the preset height, and then the following steps are also included:
- connection gray value is a gray value corresponding to the image of the connection between the intake valve and the air nozzle
- connection gray value is an image gray value on the image of the intake valve, and corresponds to a connection between the intake valve and the air nozzle.
- the grayscale value of the connection is gray densely processed, so as to correspond the grayscale value of the connection with the gas density, that is, to obtain The gas density around the joint between the intake valve and the gas nozzle.
- the preset density is the gas density corresponding to the detected gas, and the surrounding air density matches the preset density, indicating that the gas density around the connection between the inlet valve and the gas nozzle is the same as the standard gas density equal, which means that the gas around the connection between the intake valve and the gas nozzle is the detection gas.
- a position deviation alarm signal is sent to the airtight monitoring system, so that the inlet valve is closed in time, which further reduces the leakage of the detected gas, and further reduces the cost of airtightness detection of the gas cylinder.
- the present application further provides a gas cylinder airtightness detection device, which adopts the gas cylinder airtightness detection method described in any one of the above embodiments.
- the gas cylinder airtightness detection device has functional modules corresponding to each step of the gas cylinder airtightness detection method.
- the gas cylinder air tightness detection device includes: a bracket, an inflation module and a detection module; the bracket is used to place a plurality of gas cylinder groups; the inflation module is connected to the bracket, and the inflation module is also connected to each of the The gas cylinders in the gas cylinder group are connected, and the inflation module is used to inflate the gas cylinder group to obtain the air pressure of the gas cylinder; the detection module is connected to the support, and the detection module is used to detect the air pressure of the gas cylinder Whether it matches the preset air pressure; when the gas cylinder air pressure matches the preset air pressure, open the return valve of the gas cylinder group and the intake valve of the next gas cylinder group, so that the gas cylinder group acts as Gas source for the next cylinder group.
- the detection module detects the airtightness of the current gas cylinder group
- the gas filling module fills it with gas
- the air pressure of the gas cylinder reaches the preset pressure
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Abstract
一种气瓶气密性检测方法及装置，气瓶气密性检测方法包括对气瓶组进行充气处理，得到气瓶气压（S100）；检测气瓶气压与预设气压是否匹配（S200）；当气瓶气压与预设气压匹配时，开启气瓶组的回气阀以及下一气瓶组的进气阀，以使气瓶组作为下一个气瓶组的气源（S300）。在检测当前气瓶组的气密性过程中，将气体充入其中后，当气瓶气压达到预设气压时，确定了当前气瓶组的各气瓶的气密性良好，之后再将当前气瓶组内的气体通过回气阀以及进气阀充入下一个气瓶组内，即当前气瓶组内的气体作为下一个气瓶组的气源，使得用于检测气密性的气体重复使用，减少了对不同气瓶组检测时的气体加压时间，从而提高了对气瓶气密性检测的效率。
Description
本发明涉及一种气瓶气密性检测方法及装置。
气瓶作为储存气体的主要容置器皿，在方便存储的过程中，还能方便运输，具有较强的运输储存稳定性，便于对气体的运输储存。其中，气瓶的气密性是其重要的产品指标，直接决定了气瓶的合格率。传统的方式是对气瓶进行加压充气，并通过对气瓶内的气压进行检测，以确定气瓶的气密性问题。
然而，作为充气的气源，需要持续向各气瓶充入气体，即分别对各气瓶进行单独检测，使得每一个气瓶的气密性检测是重复的步骤，从而使得对气瓶的气密性检测时间较长，进而使得对气瓶的气密性检测效率较低，严重影响对气瓶的使用率。
发明内容
基于此，有必要提供一种气瓶检测效率较高的气瓶气密性检测方法及装置。
一种气瓶气密性检测方法，所述方法包括：
对气瓶组进行充气处理，得到气瓶气压；
检测所述气瓶气压与预设气压是否匹配；
当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。
一种气瓶气密性检测装置，包括：支架、充气模块以及检测模块；所述支架用于放置多个气瓶组；所述充气模块与所述支架连接，所述充气模块还与各所述气瓶组内的气瓶连通，所述充气模块用于对气瓶组进行充气处理，得到气瓶气压；所述检测模块与所述支架连接，所述检测模块用于检测所述 气瓶气压与预设气压是否匹配；当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。
本发明的一个或多个实施例的细节在下面的附图和描述中提出。本发明的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一实施例中气瓶气密性检测方法的流程图。
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的 组合。
请参阅图1，其为本发明一实施例的气瓶气密性检测方法的流程图。所述气瓶气密性检测方法包括以下步骤的部分或全部。
S100：对气瓶组进行充气处理，得到气瓶气压。
在本实施例中，所述气瓶组为当前需要进行气密性检测的气瓶组，每一个气瓶组内包含有多个气瓶，即每一个气瓶组由多个气瓶组成，例如，多个气瓶形成一个气瓶组，并固定在支架上，以便于对于各组的多个气瓶同时进行充气。在对所述气瓶组的各气瓶进行充气后，即通过将气源内的气体充入气瓶中，使得所述气瓶组内的各气瓶的气压保持相同，便于对同组的多个气瓶进行同时充气，从而便于确保获取的气瓶气压即为各气瓶内的气体气压，避免了对各气瓶进行逐一检测。
S200：检测所述气瓶气压与预设气压是否匹配。
在本实施例中，所述预设气压为检测气瓶组内各气瓶的气密性的气体的标准压强，所述气瓶气压为检测气体充入气瓶中的实时气压，为了便于对气瓶组内各气瓶的气压进行控制，在对气瓶组进行充气处理后，并对气瓶组内的气瓶的气压进行采集，即所述气瓶气压，实现对充入气瓶内的气体压强进行监测，使得充入气瓶内的检测气体气压达到指定气压，从而便于对气瓶的气密性进行精准检测。在对所述气瓶气压与所述预设气压进行匹配比较，是确定充入气瓶内的气体气压是否达到标准气压，以便于后续根据达到标准气压的气体对气瓶进行准确的气密性检测，以提高对气瓶气密性检测的精准度。
S300：当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。
在本实施例中，所述气瓶气压与所述预设气压匹配，表明了充入至气瓶内的检测气体的气压符合检测标准，即表明了充入至气瓶内的检测气体的气压达到了检测标准气压，也即表明了气瓶组内的各气瓶中的气体其气压为指定的检测气压。在确定了气瓶内的气压后，此时气瓶的气密性处于合格状态，即气瓶的气密性良好，之后为了便于对其他气瓶组进行气密性检测，将当前 气瓶组的回气阀打开，便于将当前气瓶组内的检测气体导出，此时还将下一个需要进行气密性检测的气瓶组的进气阀打开，使得当前气瓶组内的检测气体充入至下一气瓶组内，使得当前气瓶组内的检测气体作为下一气瓶组的检测气体的来源，从而使得检测气瓶气密性的气体在各气瓶组之间流通，便于对检测气体的重复使用，减少了对检测气体的使用量，从而降低了对气瓶气密性检测的成本。
上述各实施例中，在检测当前气瓶组的气密性过程中，将气体充入其中后，当气瓶气压达到预设气压时，确定了当前气瓶组的各气瓶的气密性良好，之后再将当前气瓶组内的气体通过回气阀以及进气阀充入下一个气瓶组内，即当前气瓶组内的气体作为下一个气瓶组的气源，使得用于检测气密性的气体重复使用，减少了对不同气瓶组检测时的气体加压时间，从而提高了对气瓶气密性检测的效率。而且，本申请还减少了气体的使用量，从而降低了对气瓶气密性检测的成本。
在其中一个实施例中，所述对气瓶组进行充气处理，包括：获取所述气瓶组的进气压强；检测所述进气压强是否小于或等于预设进气压强；当所述进气压强小于或等于所述预设进气压强时，向螺杆空压机发送启动信号，以为所述气瓶组提供气瓶气密性检测气体。在本实施例中，所述进气压强为与气瓶连接的气管中的气体气压，是对充入气瓶内的检测气体的气压的采集，实现对充入气瓶内的气体气压的实时监测，便于确定充入至气瓶内的气体气压状况。所述预设进气压强为气管内的气体的标准充入气压，在气瓶进行气密性检测时，所述预设进气压强即为检测时的指定气压。检测所述进气压强是否小于或等于预设进气压强，是对当前准备充入至气瓶内的气压进行检测，只有在确定所述进气压强达到所述预设进气压强后，才能便于对气瓶的气密性进行准确检测。所述进气压强小于或等于所述预设进气压强，表明了与气瓶连接的气管内的检测气体的气压还未达到标准气压，即表明了准备充入气瓶内的检测气体的气压低于符合检测标准气压，也即即将充入气瓶内的气体不符合标准。这样，此时与气瓶连接的气管内的气体量较少，无法用作对气 瓶气密性的检测，为了便于后续的气密性检测，向螺杆空压机发送启动信号，使得螺杆空压机作为气源补充检测气体，为当前气瓶组提供足量足压的气瓶气密性检测气体。在另一个实施例中，所述预设进气压强为0.5MPA至0.8MPA，例如，所述预设进气压强为0.6MPA，此气压作为区分气管内的检测气压的气体量的检测气压，便于确定是否需要通过外部的螺杆空压机进行补充气体，以确保检测气体的气体量足够。
进一步地，所述检测所述进气压强是否小于或等于预设进气压强，之后还包括：当所述进气压强大于所述预设进气压强时，向气体增压泵发送增压信号，以对所述气瓶气密性检测气体进行增压。在本实施例中，所述进气压强大于所述预设进气压强，表明了与气瓶连接的气管内的检测气体的气压达到了标准气压，即表明了准备充入气瓶内的检测气体的气压符合检测标准气压，也即即将充入气瓶内的气体符合标准，此时的检测气体的气体即可作为检测气瓶气密性的气体，而且，此时充入气瓶内的气体量同时也是满足要求的。之后在对检测气体进行增压处理，即向气体增压泵发送增压信号，以对所述气瓶气密性检测气体进行增压，使得充入气瓶内的气体的气压继续增大，便于在气瓶内形成一个检测气瓶气密性的气体气压，从而便于后续根据增压后的检测气体的气压变化情况确定气瓶的气密性。
更进一步地，所述当所述进气压强大于所述预设进气压强时，向气体增压泵发送增压信号，以对所述气瓶气密性检测气体进行增压，包括：当所述进气压强大于所述预设进气压强时，开启所述气体增压泵，获取充入所述气瓶组内的气瓶气密性检测气体的充气气压；检测所述充气气压是否大于或等于预设充气气压；当所述充气气压大于或等于所述预设充气气压时，将所述充气气压作为所述气瓶气压。在本实施例中，所述进气压强大于所述预设进气压强后，将所述气体增压泵开启，使得充入至气瓶内的气体的气压增大，以便于在气瓶内的气体符合气密性检测的要求。而充入至气瓶内的气体是处于气管内，在充入至内部空间较大的气瓶内后，气瓶内的气体气压是逐渐增大的，此时需要对充入至气瓶内的气压进行实时监测，以确定气瓶内的气压 变化情况，避免了气瓶内的气压过大或者欠压的情况。对所述充气气压与所述预设充气气压进行比较，是将气瓶内的检测气体的气压与标准的气密性检测气压进行比较。所述充气气压大于或等于所述预设充气气压，表明了气瓶内充满有检测气体，而且此时的检测气体的气压与气管内的气压相同，即表明了气瓶内充满的气体气压符合检测气密性的气压，此时充入至气瓶内的气体气压即为所述气瓶气压，作为气瓶气密性检测所用的气体气压，便于对气瓶的气密性进行准确检测。
再进一步地，所述检测所述充气气压是否大于或等于预设充气气压，之后还包括：当所述充气气压小于所述预设充气气压时，向气体增压泵发送续增续充信号，以使充入所述气瓶组内的气体的气压继续增大。在本实施例中，所述充气气压小于所述预设充气气压，表明了气瓶内未充满检测气体，而且此时的检测气体的气压小于气管内的气压，即表明了气瓶内的气体气压不符合检测气密性的气压，也即表明了气瓶内的检测气体还处于充气阶段，此时向气体增压泵发送续增续充信号，以使充入所述气瓶组内的气体的气压继续增大，便于将气瓶内的检测气体充满，并且达到检测气瓶气密性的气压，从而便于对气瓶的气密性进行准确检测。
在其中一个实施例中，所述检测所述气瓶气压与预设气压是否匹配，包括：检测所述气瓶气压是否大于或等于所述预设气压；当所述气瓶气压大于或等于所述预设气压时，检测所述气瓶气压的持续时间是否大于或等于预设气密时间。在本实施例中，所述预设气压为气瓶内的标准检测气压，作为检测气瓶气密性的参考气压，所述气瓶气压为充入至气瓶内的检测气体的气压，即所述气瓶气压为气瓶内的实时气压，用于检测气瓶内的气压是否能保持。所述气瓶气压大于或等于所述预设气压，表明了气瓶内的检测气体的气压符合检测所需的气压，即表明了此时气瓶内的检测气体已充满，也即表明了此时气瓶处于或者即将进入气密性检测阶段。这样，在确定了气瓶内的检测气体符合要求后，为了便于准确检测气瓶的气密性，需要对检测气体在气瓶内的持续时间进行检测，以确定气瓶是否具有良好的气密性，即确定气瓶内的 检测气体是否存在漏气的情况。
进一步地，所述当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源，包括：当所述持续时间大于或等于所述预设气密时间时，将所述气瓶组内的气体导入至下一个气瓶组。在本实施例中，所述预设气密时间为气瓶气密性检测的时长，即检测气体在预设气压下在气瓶内的时间，也即在气瓶气密性合格的情况下，检测气体在气瓶内的气压为预设气压的标准时长。所述持续时间大于或等于所述预设气密时间，表明了在预设气压下，检测气体在气瓶内的时长达到预设气密时间，即表明了在标准检测气压下，检测气体在气瓶内的时长达到标准气密检测时间，也即表明了当前气瓶组的各气瓶为气密合格的气瓶。这样，此时通过开启当前气瓶组的回气阀以及下一个气瓶组的进气阀，以便于将当前气瓶组内的检测气体充入下一个气瓶组，使得检测气体重复利用，减少了对检测气体的使用量，从而降低了对气瓶气密性检测的成本。在另一个实施例中，所述预设气压为15MPA至35MPA，例如，所述预设气压为20MPA，根据各气瓶组的规格以及材质，对应调整检测气体在气瓶内的压强，以便于对不同的气瓶进行气密性检测。
可以理解的，在对气瓶进行气密性检测时，是将气瓶组的各气瓶并列放置于支架上，之后再将进气阀对准气瓶的气嘴上，并将进气阀固定在气嘴上，以使得进气阀与气瓶的气嘴稳定连接，从而便于向气瓶内充入检测气体。然而，在无人工对进气阀进行复检的气瓶气密性检测系统中，容易存在进气阀与气嘴发生偏移的情况，即进气阀未能与气嘴完全咬合，导致进气阀充入的检测气体的泄漏，从而导致气瓶气密性检测的精准度下降。
为了提高气瓶气密性检测的精准度，即确保检测气体准确充入气瓶，也即确保进气阀对准气瓶的气嘴，所述对气瓶组进行充气处理，得到气瓶气压，之前还包括以下步骤：
获取气瓶的进气阀图像；
根据所述进气阀图像获取第一定位坐标以及气嘴坐标；
对所述第一定位坐标以及所述气嘴坐标进行位高处理，得到定位高度；
检测所述定位高度是否大于预设高度；
当所述定位高度大于所述预设高度时，向气密监控系统发送位偏报警信号，以使所述进气阀关闭。
在本实施例中，所述进气阀图像为进气阀与气嘴在连接位置处的连接结构图像，所述进气阀具有第一定位点，所述第一定位坐标对于所述第一定位点在所述进气阀图像上的位置坐标，所述气嘴坐标为气嘴的顶部在所述进气阀图像上的位置坐标。对所述第一定位坐标以及所述气嘴坐标进行位高处理，是对所述第一定位坐标和所述气嘴坐标进行高度差计算，以得到所述第一定位点与所述气嘴的顶部之间的高度位置的差值，即所述定位高度。所述预设高度为标准的高度位置的差值，即在所述进气阀与所述气嘴完全咬合的情况下，所述进气阀的第一定位点与所述气嘴的顶部之间的标准高度差。检测所述定位高度是否大于预设高度，便于确定所述进气阀的第一定位点的当前位置，从而便于确定所述进气阀的第一定位点是否高出所述气嘴的顶部。所述定位高度大于所述预设高度，表明了所述进气阀的第一定位点的当前位置高出了所述气嘴的顶部，即表明了所述进气阀凸出于所述气嘴的顶部，也即表明了所述进气阀未对准所述气嘴，此时所述进气阀与所述气嘴之间存在位置偏差，向气密监控系统发送位偏报警信号，以使所述进气阀关闭，以避免通过所述进气阀向气瓶充入检测气体，同时也便于监控人员及时对进气阀进行调整。
进一步地，进气阀与气嘴之间的位偏情况中，进气阀出现倾斜的情况最为严重，即此情况导致的漏气速率最快，为了便于及时发现位置倾斜的情况，所述根据所述进气阀图像获取第一定位坐标以及气嘴坐标，之后还包括以下步骤：
根据所述进气阀图像获取第二定位坐标；
对所述第一定位坐标、所述第二定位坐标以及所述气嘴坐标进行差位处理，得到位高差分值；
检测所述位高差分值是否小于预设位差，其中，所述预设位差为所述第一定位坐标与所述第二定位坐标之间的长度；
当所述位高差分值小于所述预设位差时，向气密监控系统发送位斜报警信号，以使所述进气阀关闭。
在本实施例中，所述第二定位坐标对应的第二定位点位于所述进气阀上，而且，所述第二定位坐标对应的第二定位点远离所述气嘴设置，在正常情况下，所述第二定位点与所述第一定位点位于同一垂直线上。对所述第一定位坐标、所述第二定位坐标以及所述气嘴坐标进行差位处理，是分别计算所述第一定位点凸出于所述气嘴的高度，以及所述第二定位点凸出于所述气嘴的高度，并对上面两个高度求取高度差，以得到两个定位点在进气阀上的位置高度的差分值，确保所述进气阀上的两个定位点之间的高度差没有误差，提高了对两个定位点在进气阀上的位置高度的差值精度。其中，所述预设位差为所述第一定位坐标与所述第二定位坐标之间的长度，所述位高差分值小于所述预设位差，表明了所述进气阀上的两个定位点所形成的直线呈现倾斜的状态，即表明了所述进气阀与所述气嘴之间为倾斜状态，也即表明了所述进气阀倾斜设置在所述气嘴上，此时所述进气阀未对准所述气嘴。此时向气密监控系统发送位斜报警信号，便于及时将进气阀关闭，进一步减少了检测气体的漏气量。
更进一步地，对于重复使用的气瓶，气瓶的气嘴需要经常插拔，容易导致气嘴的损坏，从而导致气嘴出现漏气，为了便于对气嘴进行漏气检测，所述检测所述定位高度是否大于预设高度，之后还包括以下步骤：
根据所述进气阀图像获取连接灰度值，其中，所述连接灰度值为所述进气阀与所述气嘴的连接处的图像对应的灰度；
对所述连接灰度值进行灰密处理，得到周气密度；
检测所述周气密度与预设密度是否匹配；
当所述周气密度与所述预设密度匹配时，向气密监控系统发送漏气警报，以使所述进气阀关闭。
在本实施例中，通过所述进气阀充入气瓶内的检测气体与空气之间存在颜色不同，例如，检测气体中混有二氧化氮。所述连接灰度值是所述进气阀图像上的图像灰度值，并且对应于所述进气阀与所述气嘴的连接处。在所述气嘴出现损坏时，通过检测到进气阀图像上的灰度后，即对所述连接灰度值进行灰密处理，以将所述连接灰度值与气体密度对应，即获取所述进气阀与气嘴的连接处周围的气体密度。所述预设密度即为检测气体对应的气体密度，所述周气密度与所述预设密度匹配，表明了所述进气阀与所述气嘴的连接处周围的气体密度与标准气体密度相等，即表明了所述进气阀与所述气嘴的连接处周围的气体是检测气体。此时向气密监控系统发送位偏报警信号，以使所述进气阀及时关闭，进一步减少了检测气体的漏气量，进一步降低了气瓶气密性检测的成本。
在其中一个实施例中，本申请还提供一种气瓶气密性检测装置，其采用上述任一实施例中所述的气瓶气密性检测方法。在其中一个实施例中，所述气瓶气密性检测装置具有用于实现所述气瓶气密性检测方法各步骤对应的功能模块。所述气瓶气密性检测装置包括：支架、充气模块以及检测模块；所述支架用于放置多个气瓶组；所述充气模块与所述支架连接，所述充气模块还与各所述气瓶组内的气瓶连通，所述充气模块用于对气瓶组进行充气处理，得到气瓶气压；所述检测模块与所述支架连接，所述检测模块用于检测所述气瓶气压与预设气压是否匹配；当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。在本实施例中，检测模块在检测当前气瓶组的气密性过程中，充气模块将气体充入其中后，当气瓶气压达到预设气压时，确定了当前气瓶组的各气瓶的气密性良好，之后再将当前气瓶组内的气体通过回气阀以及进气阀充入下一个气瓶组内，即当前气瓶组内的气体作为下一个气瓶组的气源，使得用于检测气密性的气体重复使用，减少了对不同气瓶组检测时的气体加压时间，从而提高了对气瓶气密性检测的效率。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未 对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (13)
- 一种气瓶气密性检测方法，其特征在于，包括：对气瓶组进行充气处理，得到气瓶气压；检测所述气瓶气压与预设气压是否匹配；当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。
- 根据权利要求1所述的气瓶气密性检测方法，其特征在于，所述对气瓶组进行充气处理，包括：获取所述气瓶组的进气压强；检测所述进气压强是否小于或等于预设进气压强；当所述进气压强小于或等于所述预设进气压强时，向螺杆空压机发送启动信号，以为所述气瓶组提供气瓶气密性检测气体。
- 根据权利要求2所述的气瓶气密性检测方法，其特征在于，所述预设进气压强为0.5MPA至0.8MPA。
- 根据权利要求3所述的气瓶气密性检测方法，其特征在于，所述预设进气压强为0.6MPA。
- 根据权利要求2所述的气瓶气密性检测方法，其特征在于，所述检测所述进气压强是否小于或等于预设进气压强，之后还包括：当所述进气压强大于所述预设进气压强时，向气体增压泵发送增压信号，以对所述气瓶气密性检测气体进行增压。
- 根据权利要求5所述的气瓶气密性检测方法，其特征在于，所述当所述进气压强大于所述预设进气压强时，向气体增压泵发送增压信号，以对所述气瓶气密性检测气体进行增压，包括：当所述进气压强大于所述预设进气压强时，开启所述气体增压泵，获取充入所述气瓶组内的气瓶气密性检测气体的充气气压；检测所述充气气压是否大于或等于预设充气气压；当所述充气气压大于或等于所述预设充气气压时，将所述充气气压作为 所述气瓶气压。
- 根据权利要求6所述的气瓶气密性检测方法，其特征在于，所述检测所述充气气压是否大于或等于预设充气气压，之后还包括：当所述充气气压小于所述预设充气气压时，向气体增压泵发送续增续充信号，以使充入所述气瓶组内的气体的气压继续增大。
- 根据权利要求1所述的气瓶气密性检测方法，其特征在于，所述检测所述气瓶气压与预设气压是否匹配，包括：检测所述气瓶气压是否大于或等于所述预设气压；当所述气瓶气压大于或等于所述预设气压时，检测所述气瓶气压的持续时间是否大于或等于预设气密时间。
- 根据权利要求8所述的气瓶气密性检测方法，其特征在于，所述当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源，包括：当所述持续时间大于或等于所述预设气密时间时，将所述气瓶组内的气体导入至下一个气瓶组。
- 根据权利要求9所述的气瓶气密性检测方法，其特征在于，所述预设气压为15MPA至35MPA。
- 根据权利要求10所述的气瓶气密性检测方法，其特征在于，所述预设气压为20MPA。
- 根据权利要求1所述的气瓶气密性检测方法，其特征在于，所述对气瓶组进行充气处理，得到气瓶气压，之前还包括：获取气瓶的进气阀图像；根据所述进气阀图像获取第一定位坐标以及气嘴坐标；对所述第一定位坐标以及所述气嘴坐标进行位高处理，得到定位高度；检测所述定位高度是否大于预设高度；当所述定位高度大于所述预设高度时，向气密监控系统发送位偏报警信号，以使所述进气阀关闭；其中，所述根据所述进气阀图像获取第一定位坐标以及气嘴坐标，之后还包括以下步骤：根据所述进气阀图像获取第二定位坐标；对所述第一定位坐标、所述第二定位坐标以及所述气嘴坐标进行差位处理，得到位高差分值；检测所述位高差分值是否小于预设位差，其中，所述预设位差为所述第一定位坐标与所述第二定位坐标之间的长度；当所述位高差分值小于所述预设位差时，向气密监控系统发送位斜报警信号，以使所述进气阀关闭；以及，所述检测所述定位高度是否大于预设高度，之后还包括：根据所述进气阀图像获取连接灰度值，其中，所述连接灰度值为所述进气阀与所述气嘴的连接处的图像对应的灰度；对所述连接灰度值进行灰密处理，得到周气密度；检测所述周气密度与预设密度是否匹配；当所述周气密度与所述预设密度匹配时，向气密监控系统发送漏气警报，以使所述进气阀关闭。
- 一种气瓶气密性检测装置，其特征在于，包括：支架，所述支架用于放置多个气瓶组；充气模块，所述充气模块与所述支架连接，所述充气模块还与各所述气瓶组内的气瓶连通，所述充气模块用于对气瓶组进行充气处理，得到气瓶气压；检测模块，所述检测模块与所述支架连接，所述检测模块用于检测所述气瓶气压与预设气压是否匹配；当所述气瓶气压与所述预设气压匹配时，开启所述气瓶组的回气阀以及下一气瓶组的进气阀，以使所述气瓶组作为下一个气瓶组的气源。
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| CN113310641A (zh) * | 2021-06-21 | 2021-08-27 | 四川省特种设备检验研究院 | 一种高压容器试验系统 |
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| CN117129160A (zh) * | 2023-08-25 | 2023-11-28 | 江苏舒茨测控设备股份有限公司 | 元器件气密检测装置的预警报警方法、系统、终端及存储介质 |
| CN117129160B (zh) * | 2023-08-25 | 2024-03-26 | 江苏舒茨测控设备股份有限公司 | 元器件气密检测装置的预警报警方法、系统、终端及存储介质 |
| CN117330261A (zh) * | 2023-09-27 | 2024-01-02 | 深圳市康泰电气设备有限公司 | 一种开关设备充气柜漏气检测装置 |
| CN117330261B (zh) * | 2023-09-27 | 2024-06-04 | 深圳市康泰电气设备有限公司 | 一种开关设备充气柜漏气检测装置 |
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| CN114235313B (zh) | 2023-06-06 |
| CN114235313A (zh) | 2022-03-25 |
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