A method and device for monitoring air tightness of a high-pressure unit, a storage medium and an apparatus

Abstract

The application relates to the technical field of air tightness monitoring, and particularly discloses a high-pressure unit air tightness monitoring method and device, a storage medium and computer equipment. The method comprises the following steps: connecting a first pipeline with a high-pressure unit, controlling a first valve on a second pipeline to be in a closed state, so that a differential pressure gauge is connected with the high-pressure unit through a third pipeline and the first pipeline, and a closed air chamber is formed through the first valve and the connected second pipeline; the gas pressure in the closed air chamber is the initial gas pressure of the high-pressure unit; one side of the second pipeline and the third pipeline is connected with the first pipeline, and the other side is connected with the differential pressure gauge; the air tightness of the high-pressure unit is monitored based on the differential pressure gauge, and when the differential pressure gauge shows a differential pressure value, it is determined that the high-pressure unit is in a gas leakage state. According to the application, a small-range and high-precision differential pressure gauge can be used to realize air tightness monitoring, and the accuracy of high-pressure unit air tightness monitoring can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air tightness monitoring, in particular to a high-pressure unit air tightness monitoring method and device, a storage medium and a computer device. BACKGROUND

[0002] Large high-pressure units often have extremely strict requirements for the air tightness of the entire machine, and the air tightness directly determines whether the high-pressure unit can safely operate. In the prior art, the air tightness of a large high-pressure unit is usually tested by a positive / negative pressure leak detection method. This method often measures the pressure drop on the high-pressure unit by using a pressure gauge. The minimum scale of the pressure gauge is the product of the pressure gauge range and the resolution, and the interior of the large high-pressure unit is filled with high-pressure gas. In the case of limited pressure gauge accuracy, the minimum scale of the high-pressure pressure gauge is also very large, much larger than the pressure drop of the high-pressure unit being tested, thereby greatly reducing the accuracy of the air tightness test of the high-pressure unit. SUMMARY

[0003] Therefore, the present application provides a high-pressure unit air tightness monitoring method and device, a storage medium and a computer device. The air tightness of a high-pressure unit is monitored by using a first pipeline, a second pipeline, a third pipeline, a first valve and a differential pressure gauge. A small-range and high-precision differential pressure gauge can be used to monitor the air tightness, and the accuracy of the air tightness monitoring of the high-pressure unit can be greatly improved.

[0004] According to one aspect of the present application, a high-pressure unit air tightness monitoring method is provided, comprising:

[0005] The first pipeline is connected to the high-pressure unit, and the first valve on the second pipeline is controlled to be in a closed state, so that the differential pressure gauge is connected to the high-pressure unit through the third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve. The gas pressure in the closed air chamber is the initial gas pressure of the high-pressure unit. One side of the second pipeline and the third pipeline is connected to the first pipeline, and the other side is connected to the differential pressure gauge.

[0006] The air tightness of the high-pressure unit is monitored based on the differential pressure gauge, and when the differential pressure gauge shows a differential pressure value, it is determined that the high-pressure unit is in a gas leakage state.

[0007] According to another aspect of the present application, a high-pressure unit air tightness monitoring device is provided, comprising:

[0008] a valve control module, configured to connect the first pipeline with the high-pressure unit, and control the first valve on the second pipeline to be in a closed state, so that the differential pressure gauge is connected with the high-pressure unit through the third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve, the gas pressure in the closed air chamber being the initial gas pressure of the high-pressure unit, one side of the second pipeline and the third pipeline being connected with the first pipeline, and the other side being connected with the differential pressure gauge;

[0009] a gas tightness monitoring module, configured to monitor the gas tightness of the high-pressure unit based on the differential pressure gauge, and determine that the high-pressure unit is in a gas leakage state when the differential pressure gauge shows a differential pressure value.

[0010] According to yet another aspect of the present application, a storage medium having a computer program stored thereon is provided, the program being executed by a processor to implement the above-mentioned high-pressure unit gas tightness monitoring method.

[0011] According to still another aspect of the present application, a computer device is provided, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, the processor implementing the above-mentioned high-pressure unit gas tightness monitoring method when executing the program.

[0012] By means of the above technical solution, the high-pressure unit gas tightness monitoring method and device, storage medium, and computer device provided by the present application connect the first pipeline with the high-pressure unit, and control the first valve on the second pipeline to be in a closed state, so that the differential pressure gauge is connected with the high-pressure unit through the third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve, the gas pressure in the closed air chamber being the initial gas pressure of the high-pressure unit, one side of the second pipeline and the third pipeline being connected with the first pipeline, and the other side being connected with the differential pressure gauge, so that the gas tightness of the high-pressure unit can be monitored by means of the differential pressure gauge. If a differential pressure value other than zero appears in the differential pressure gauge, it indicates that the gas pressures at both ends of the differential pressure gauge are inconsistent, i.e., the real-time gas pressure of the high-pressure unit has changed and is no longer equal to the initial gas pressure of the high-pressure unit, so it can be determined that the high-pressure unit is in a gas leakage state. The present application monitors the gas tightness of the high-pressure unit by means of the first pipeline, second pipeline, third pipeline, first valve, and differential pressure gauge, and can realize gas tightness monitoring by means of a small-range and high-precision differential pressure gauge, while greatly improving the accuracy of high-pressure unit gas tightness monitoring.

[0013] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented in accordance with the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0015] Figure 1 A flowchart of a method for monitoring air tightness of a high-pressure unit is shown;

[0016] Figure 2 A schematic diagram of a system for monitoring air tightness of a high-pressure unit is shown;

[0017] Figure 3 A flowchart of another method for monitoring air tightness of a high-pressure unit is shown;

[0018] Figure 4 A schematic diagram of another system for monitoring air tightness of a high-pressure unit is shown;

[0019] Figure 5 A schematic diagram of a pipeline inside another system for monitoring air tightness of a high-pressure unit is shown;

[0020] Figure 6 A structural schematic diagram of a device for monitoring air tightness of a high-pressure unit is shown. DETAILED DESCRIPTION

[0021] The application will be described in detail below with reference to the drawings and embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict.

[0022] In this embodiment, a method for monitoring air tightness of a high-pressure unit is provided, as shown in the figure, the method comprises: Figure 1

[0023] Step 101, connect the first pipeline with the high-pressure unit, and control the first valve on the second pipeline to be in a closed state, so that the differential pressure gauge is connected with the high-pressure unit through the third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve, the gas pressure in the closed air chamber is the initial gas pressure of the high-pressure unit, and one side of the second pipeline and the third pipeline is connected with the first pipeline, and the other side is connected with the differential pressure gauge;

[0024] The method for monitoring air tightness of a high-pressure unit provided in the application can be implemented based on the system as shown in the figure. As shown in the figure, Figure 2 Figure 2 ​​As shown, the system can include a first pipeline, a second pipeline, a third pipeline, a differential pressure gauge and a first valve. The first pipeline is connected to the high-pressure unit on one side and connected to the third pipeline and the second pipeline on the other side. The first valve is arranged on the second pipeline and can have two states of opening and closing. The third pipeline is connected to the first pipeline on one side and connected to one end of the differential pressure gauge on the other side. The second pipeline is connected to the first pipeline on one side and connected to the other end of the differential pressure gauge on the other side. The first pipeline and the third pipeline are connected at the connection point, and the first pipeline and the third pipeline are also connected at the connection point. The third pipeline is connected to one end of the differential pressure gauge, and the second pipeline is connected to the other end of the differential pressure gauge. By opening the first valve arranged on the second pipeline, a passage is formed between the other end of the differential pressure gauge and the high-pressure unit. By closing the first valve arranged on the second pipeline, a closed gas chamber is formed between the differential pressure gauge and the second pipeline.

[0025] When the connection between the first pipeline and the high-pressure unit is completed, the first valve is controlled to be in a closed state. At this time, one end of the differential pressure gauge is connected to the high-pressure unit through the third pipeline and the first pipeline, and the other end is a closed gas chamber. The gas pressure in the closed gas chamber can be the initial gas pressure of the high-pressure unit.

[0026] In step 102, the gas tightness of the high-pressure unit is monitored based on the differential pressure gauge, and when the differential pressure gauge shows a differential pressure value, it is determined that the high-pressure unit is in a gas leakage state.

[0027] In this embodiment, after the connection between the first pipeline and the high-pressure unit is completed and the first valve on the second pipeline is in a closed state, the pressure in the closed gas chamber is the initial gas pressure of the high-pressure unit. At this time, one side of the differential pressure gauge is the real-time gas pressure of the high-pressure unit, and the other side is the initial gas pressure of the high-pressure unit. Therefore, the gas tightness of the high-pressure unit can be monitored by using the differential pressure gauge. If a differential pressure value other than zero appears in the differential pressure gauge, it means that the gas pressures at both ends of the differential pressure gauge are inconsistent, i.e. the real-time gas pressure of the high-pressure unit has changed and is no longer equal to the initial gas pressure of the high-pressure unit. Therefore, it can be judged that the high-pressure unit is in a gas leakage state.

[0028] By applying the technical solution of the embodiment, the first pipeline is connected with the high-pressure unit, and the first valve on the second pipeline is controlled to be in a closed state. Since the pressure in the closed air chamber at this time is the initial gas pressure in the high-pressure unit, one side of the pressure difference table is the real-time gas pressure of the high-pressure unit, and the other side is the initial gas pressure of the high-pressure unit. Therefore, the air tightness of the high-pressure unit can be monitored by using the pressure difference table at this time. If a non-zero pressure difference reading appears in the pressure difference table, it means that the gas pressures at both ends of the pressure difference table are inconsistent, that is, the real-time gas pressure of the high-pressure unit has changed and is no longer equal to the initial gas pressure of the high-pressure unit, indicating that the high-pressure unit is in a gas leakage state. The embodiment of the application monitors the air tightness of the high-pressure unit by the first pipeline, the second pipeline, the third pipeline, the first valve, and the pressure difference table. The air tightness can be monitored by using a small-range and high-precision pressure difference table, and the accuracy of the air tightness monitoring of the high-pressure unit can be greatly improved.

[0029] Further, as a refinement and expansion of the above embodiment, in order to completely describe the specific implementation process of the embodiment, another method for monitoring the air tightness of a high-pressure unit is provided, as shown in Figure 3 , the method comprises:

[0030] Step 201, connecting the first pipeline with the high-pressure unit;

[0031] Step 202, controlling the first valve to be in an open state, adjusting the pressure difference table so that the pressure difference reading displayed by the pressure difference table is zero, one end of the pressure difference table being connected with the high-pressure unit through the second pipeline and the first pipeline, and the other end of the pressure difference table being connected with the high-pressure unit through the third pipeline and the first pipeline;

[0032] In this embodiment, the first valve is arranged on the second pipeline, and the first valve can have two states, one being an open state and the other being a closed state. Before monitoring the air tightness of the high-pressure unit by using the pressure difference table, the first valve can be controlled to be in an open state, so that both ends of the pressure difference table are connected with the high-pressure unit, as shown in Figure 2 , wherein one end of the pressure difference table is connected with the high-pressure unit through the first pipeline and the third pipeline, and the other end of the pressure difference table is connected with the high-pressure unit through the first pipeline and the second pipeline. Since both ends of the pressure difference table are connected with the high-pressure unit, there is no pressure difference between the two ends of the pressure difference table under normal circumstances, and the pressure difference reading of the pressure difference table is zero. If the pressure difference reading is not zero, the pressure difference table can be adjusted accordingly. The embodiment of the application adjusts the pressure difference table by opening the first valve before monitoring the air tightness of the high-pressure unit, which is simple and convenient, and can improve the monitoring accuracy and accuracy of the pressure difference table.

[0033] Step 203, control the first valve on the second pipeline to be in a closed state, so that the pressure difference table is connected with the high-pressure unit through the third pipeline and the first pipeline, and a closed air chamber is formed between the pressure difference table and the second pipeline connected through the first valve, the gas pressure in the closed air chamber is the initial gas pressure of the high-pressure unit, and one side of the second pipeline and the third pipeline is connected with the first pipeline and the other side is connected with the pressure difference table;

[0034] In this embodiment, after the pressure difference table is adjusted, the first valve can be controlled to be in a closed state, and the gas pressure in the closed air chamber at the other end of the pressure difference table after being closed is directly the initial gas pressure of the high-pressure unit. It should be noted that in the process of monitoring the air tightness of the high-pressure unit by using the pressure difference table, the first valve is always in a closed state. After the first valve is closed, one end of the pressure difference table is connected with the high-pressure unit, and the other end forms a closed air chamber with the connected second pipeline. The connection described herein refers to the connection of the pipeline.

[0035] Step 204, monitoring the air tightness of the high-pressure unit based on the pressure difference table, and determining that the high-pressure unit is in a gas leakage state when the pressure difference table shows a pressure difference;

[0036] In this embodiment, when the pressure difference table is used to monitor the air tightness of the high-pressure unit, if a pressure difference appears in the pressure difference table, which is not zero, it means that the gas pressures at both ends of the pressure difference table are inconsistent, that is, the real-time gas pressure of the high-pressure unit has changed and is no longer equal to the initial gas pressure of the high-pressure unit, that is, it can be determined that the high-pressure unit is in a gas leakage state.

[0037] Step 205, obtaining the pressure difference shown by the pressure difference table, and the equivalent volume of the high-pressure unit, and the actual atmospheric pressure corresponding to the location of the high-pressure unit;

[0038] In this embodiment, after it is determined that the high-pressure unit is in a gas leakage state, the pressure difference shown by the pressure difference table at this time can be obtained, and the pressure difference is the value of the pressure difference at both ends of the pressure difference table at this time. In addition, the equivalent volume of the high-pressure unit and the actual atmospheric pressure of the current location of the high-pressure unit can also be obtained.

[0039] Step 206, determining the gas leakage amount of the high-pressure unit based on the pressure difference, the equivalent volume and the actual atmospheric pressure;

[0040] In this embodiment, then, the gas leakage amount of the high-pressure unit at this time can be calculated based on the differential pressure value, the equivalent volume of the high-pressure unit, and the actual atmospheric pressure of the region where the high-pressure unit is located. Specifically, the calculation can be performed using the following formula:

[0041]

[0042] wherein Q represents the gas leakage amount of the high-pressure unit, V represents the equivalent volume of the high-pressure unit, ΔP represents the differential pressure value of the differential pressure gauge, and Pa represents the actual atmospheric pressure of the region where the high-pressure unit is located.

[0043] In step 207, the gas leakage amount is compared with a preset leakage amount threshold of the high-pressure unit to obtain a comparison result.

[0044] In this embodiment, after the gas leakage amount of the high-pressure unit is calculated, the calculated gas leakage amount can also be compared with a preset leakage amount threshold. The preset leakage amount threshold can be determined in advance according to the actual situation of the high-pressure unit, and through the preset leakage amount threshold, it can be determined whether the actual gas leakage amount of the high-pressure unit is within an acceptable range.

[0045] In step 208, when the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold, an alarm signal is generated and sent to a preset management terminal.

[0046] In this embodiment, if it is found through comparison that the actual gas leakage amount of the high-pressure unit is greater than or equal to the preset leakage amount threshold, it indicates that the actual gas leakage amount of the high-pressure unit has exceeded the acceptable range and has affected the normal operation of the high-pressure unit. Therefore, an alarm signal can be generated and sent to the preset management terminal. Here, the preset management terminal can be a work computer terminal, a mobile phone terminal, etc. corresponding to the monitoring personnel, so that the monitoring personnel can timely understand the gas leakage situation of the high-pressure unit and timely detect and repair the high-pressure unit.

[0047] In step 209, when the comparison result indicates that the gas leakage amount is less than the preset leakage amount threshold, a timer is started, and when the timing time of the timer reaches a time threshold, the differential pressure value displayed by the differential pressure gauge is reacquired, the gas leakage amount of the high-pressure unit is updated based on the reacquired differential pressure value, and the comparison result is obtained according to the updated gas leakage amount, until the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold.

[0048] In this embodiment, if it is found through comparison that the actual gas leakage of the high-pressure unit is less than the preset leakage threshold, it indicates that the actual gas leakage of the high-pressure unit is still within an acceptable range, and the monitoring personnel does not need to be notified, but the timer can be started first. If the timing time of the timer reaches the time threshold, the pressure difference displayed by the pressure difference gauge is reacquired, and then the new gas leakage is calculated again by using the reacquired pressure difference, the equivalent volume of the high-pressure unit, and the actual atmospheric pressure of the region, and the new gas leakage is compared with the preset leakage threshold again. If it is found through comparison that the new gas leakage is still less than the preset leakage threshold, the above loop is repeated again until the new gas leakage is greater than or equal to the preset leakage threshold. In this embodiment, by setting the preset leakage threshold and comparing the gas leakage of the high-pressure unit with the preset leakage threshold, the monitoring personnel can be informed of the actual leakage of the high-pressure unit in a timely manner, which is beneficial to timely discovery of problems and improvement of the operation safety of the high-pressure unit.

[0049] In this embodiment, optionally, the first pipeline is provided with a second valve. After step 201, the method further includes: every first preset time interval, the second valve on the first pipeline is controlled to be in a closed state, and the pressure difference gauge is calibrated by using a preset calibration device.

[0050] In this embodiment, as shown in Figure 4 and Figure 5 , the second valve can also be arranged on the first pipeline. Figure 4 and Figure 5 correspond to each other, Figure 5 are Figure 4 corresponding specific pipeline internal diagrams. In Figure 5 , the serial number 1 refers to the pressure difference gauge, the serial number 2 refers to the first valve, and the serial number 3 refers to the second valve. The second valve can also have two states of being opened and closed. When the second valve is in the opened state, the third pipeline and the high-pressure unit are in communication with each other. When the second valve is in the closed state, the third pipeline and the high-pressure unit are disconnected from each other. After the first pipeline is connected to the high-pressure unit, the second valve can be kept in the opened state, and then every first preset time interval, the second valve on the first pipeline can be adjusted to the closed state. At this time, the high-pressure unit, the second pipeline, the third pipeline, and the pressure difference gauge are all disconnected, the pressure difference gauge can be calibrated by using the preset calibration device without affecting the high-pressure unit, which is simple and convenient. In this embodiment, by arranging the second valve and the first preset time interval, the pressure difference gauge can be conveniently calibrated periodically without affecting the high-pressure unit, so as to ensure the monitoring accuracy of the pressure difference gauge.

[0051] In the embodiments of the present application, optionally, the method further comprises: when the differential pressure gauge is in a monitoring state, every second preset time interval, controlling the second valve on the first pipeline to be in a closed state, monitoring the air tightness of the second pipeline and the third pipeline based on the differential pressure gauge, and when the differential pressure gauge shows a differential pressure value, determining that the second pipeline and / or the third pipeline is in a gas leakage state.

[0052] In this embodiment, in addition to achieving the periodic calibration of the differential pressure gauge through the second valve, every second preset time interval, the second valve on the first pipeline can be adjusted to be in a closed state, at this time, instead of calibrating the differential pressure gauge, the air tightness of the second pipeline and the third pipeline is monitored by the differential pressure gauge in the state of being isolated from the high-pressure unit. It should be noted that when the differential pressure gauge is in a monitoring state, that is, when the differential pressure gauge is normally working, at this time, the first valve is in a closed state, as shown in Figure 4 Or Figure 5 As shown, in this way, one end of the differential pressure gauge is connected with part of the second pipeline, part of the first pipeline and the third pipeline, and the other end of the differential pressure gauge is connected with part of the second pipeline, and the left and right ends of the differential pressure gauge are respectively connected with two closed air chambers, in this way, no matter which end exists gas leakage, the differential pressure gauge can show a differential pressure value, thereby achieving the air tightness monitoring of the second pipeline and the third pipeline, which is simple and convenient.

[0053] In the embodiments of the present application, optionally, before step 201, the method further comprises: obtaining a preset leakage threshold of the high-pressure unit and a preset safety factor of the differential pressure gauge; determining a maximum range of the differential pressure gauge based on the preset leakage threshold and the preset safety factor; calling a preset database, and querying a matched differential pressure gauge model from the preset database based on the maximum range of the differential pressure gauge, to determine the differential pressure gauge based on the differential pressure gauge model.

[0054] In this embodiment, before connecting the first pipeline with the high-pressure unit, the preset leakage threshold of the high-pressure unit and the preset safety factor of the differential pressure gauge to be reached can also be used to determine the differential pressure gauge suitable for monitoring the high-pressure unit. Specifically, the preset leakage threshold of the high-pressure unit and the preset safety factor of the differential pressure gauge can be obtained, and then the maximum range of the required differential pressure gauge can be calculated by using the preset leakage threshold and the preset safety factor. Here, when the differential pressure gauge is used to monitor the high-pressure unit, the upper limit of the measurement of the differential pressure gauge can be determined according to the preset leakage threshold of the high-pressure unit, but when the monitoring personnel does not handle in time when the high-pressure unit leaks or due to other reasons, the actual measured pressure difference of the differential pressure gauge is greater than the pressure difference calculated by the preset leakage threshold. In order to ensure the safety of the differential pressure gauge at this time, the safety factor of the differential pressure gauge is introduced, and the maximum range of the differential pressure gauge is appropriately greater than the pressure difference calculated by the preset leakage threshold, so as to ensure the safety of the differential pressure gauge. After determining the maximum range of the differential pressure gauge, the preset database can be called at this time, and the differential pressure gauge model matched with the maximum range can be found from the preset database according to the maximum range, so as to determine the appropriate differential pressure gauge. The preset leakage threshold and the preset safety factor are used to determine the maximum range of the differential pressure gauge, and the appropriate differential pressure gauge is automatically determined from the preset database according to the maximum range of the differential pressure gauge in the embodiment of the application. The whole process is automatically completed, which improves the efficiency and accuracy of the selection of the differential pressure gauge.

[0055] Further, as a specific implementation of the method, the embodiment of the application provides a monitoring device for air tightness of a high-pressure unit, as shown in the figure, the device comprises: Figure 1 Figure 6 A valve control module is configured to connect the first pipeline with the high-pressure unit and control the first valve on the second pipeline to be in a closed state, so that the differential pressure gauge is connected with the high-pressure unit through the third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve, the gas pressure in the closed air chamber is the initial gas pressure of the high-pressure unit, and one side of the second pipeline and the third pipeline is connected with the first pipeline, and the other side is connected with the differential pressure gauge.

[0056] An air tightness monitoring module is configured to monitor the air tightness of the high-pressure unit based on the differential pressure gauge, and determine that the high-pressure unit is in a gas leakage state when the differential pressure gauge displays a differential pressure value.

[0057] Optionally, the device further comprises:

[0058] Optionally, the device further comprises:

[0059] ​a pressure difference value acquisition module, configured to acquire a pressure difference value displayed by the pressure difference meter after it is determined that the high-pressure unit is in the gas leakage state, and an equivalent volume of the high-pressure unit and an actual atmospheric pressure corresponding to a location of the high-pressure unit;

[0060] a gas leakage amount determination module, configured to determine a gas leakage amount of the high-pressure unit based on the pressure difference value, the equivalent volume, and the actual atmospheric pressure.

[0061] Optionally, the device further comprises:

[0062] a comparison module, configured to compare the gas leakage amount with a preset leakage amount threshold of the high-pressure unit after the gas leakage amount of the high-pressure unit is determined, to obtain a comparison result;

[0063] an alarm signal generation module, configured to generate an alarm signal and send the alarm signal to a preset management terminal when the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold;

[0064] an update module, configured to start a timer when the comparison result indicates that the gas leakage amount is less than the preset leakage amount threshold, and re-acquire a pressure difference value displayed by the pressure difference meter when a timing time of the timer reaches a time threshold, update the gas leakage amount of the high-pressure unit based on the re-acquired pressure difference value, and obtain a comparison result according to the updated gas leakage amount, until the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold.

[0065] Optionally, the device further comprises:

[0066] a pressure difference meter adjustment module, configured to control a first valve on the second pipeline to be in an open state before the first valve on the second pipeline is controlled to be in a closed state, and adjust the pressure difference meter so that a pressure difference value displayed by the pressure difference meter is zero, one end of the pressure difference meter being connected to the high-pressure unit through the second pipeline and the first pipeline, and the other end of the pressure difference meter being connected to the high-pressure unit through the third pipeline and the first pipeline.

[0067] Optionally, a second valve is arranged on the first pipeline, and the device further comprises:

[0068] a pressure difference meter calibration module, configured to control the second valve on the first pipeline to be in a closed state every first preset time interval after the first pipeline is connected to the high-pressure unit, and calibrate the pressure difference meter by using a preset calibration device.

[0069] Optionally, the air tightness monitoring module is further configured to: when the differential pressure gauge is in a monitoring state, control the second valve on the first pipeline to be in a closed state every second preset time interval, monitor air tightness of the second pipeline and the third pipeline based on the differential pressure gauge, and determine that the second pipeline and / or the third pipeline is in a gas leakage state when the differential pressure gauge displays a differential pressure value.

[0070] Optionally, the device further comprises:

[0071] a safety factor acquisition module configured to acquire a preset leakage threshold of the high-pressure unit and a preset safety factor of the differential pressure gauge before the first pipeline is connected to the high-pressure unit;

[0072] a maximum range determination module configured to determine a maximum range of the differential pressure gauge based on the preset leakage threshold and the preset safety factor;

[0073] a database calling module configured to call a preset database, query a matched differential pressure gauge model from the preset database based on the maximum range of the differential pressure gauge, and determine the differential pressure gauge based on the differential pressure gauge model.

[0074] It should be noted that other corresponding descriptions of the various functional units involved in the high-pressure unit air tightness monitoring device provided by the embodiments of the present application can be referred to the corresponding descriptions in the method of the present application, which will not be described here again. Figures 1 to 5

[0075] Based on the above-mentioned method as shown in Figures 1 to 5 , correspondingly, the embodiments of the present application also provide a storage medium having a computer program stored thereon, which is executed by a processor to implement the above-mentioned high-pressure unit air tightness monitoring method as shown in Figures 1 to 5

[0076] Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.) and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in various implementation scenarios of the present application.

[0077] Based on the above-mentioned method as shown in Figures 1 to 5 , and Figure 6 the virtual device embodiment, in order to achieve the above-mentioned purpose, the embodiments of the present application also provide a computer device, which can be a personal computer, a server, a network device, etc., the computer device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to implement the above-mentioned high-pressure unit air tightness monitoring method as shown in Figures 1 to 5 ​​The monitoring method of the air tightness of the high-pressure unit is shown.

[0078] Optionally, the computer device can further include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, and the like. The user interface can include a display screen, an input unit such as a keyboard, and the like. The optional user interface can further include a USB interface, a card reader interface, and the like. The network interface can optionally include a standard wired interface, a wireless interface (such as a Bluetooth interface, a WI-FI interface), and the like.

[0079] Those skilled in the art can understand that the computer device structure provided by the embodiment does not constitute a limitation on the computer device, and can include more or fewer components, or combine certain components, or different component arrangements.

[0080] The storage medium can further include an operating system and a network communication module. The operating system is a program for managing and saving computer device hardware and software resources, and supports the running of information processing programs and other software and / or programs. The network communication module is used to realize communication between components in the storage medium, and communication with other hardware and software in the entity device.

[0081] Through the above description of the embodiments, those skilled in the art can clearly understand that the present application can be realized by means of software and necessary general hardware platforms, or by hardware. The first pipeline is connected with the high-pressure unit, and the first valve on the second pipeline is controlled to be in a closed state. Since the pressure in the closed air chamber at this time is the initial gas pressure in the high-pressure unit, one side of the pressure difference table is the real-time gas pressure of the high-pressure unit, and the other side is the initial gas pressure of the high-pressure unit. Therefore, the air tightness of the high-pressure unit can be monitored by using the pressure difference table at this time. If a non-zero pressure difference value appears in the pressure difference table, it means that the gas pressures at both ends of the pressure difference table are inconsistent, that is, the real-time gas pressure of the high-pressure unit has changed and is no longer equal to the initial gas pressure of the high-pressure unit, that is, it can be judged that the high-pressure unit is in a gas leakage state. The first pipeline, the second pipeline, the third pipeline, the first valve, and the pressure difference table are used to monitor the air tightness of the high-pressure unit in the present application embodiment. A small range and high precision pressure difference table can be used to realize air tightness monitoring, and the accuracy of air tightness monitoring of the high-pressure unit can be greatly improved.

[0082] Those skilled in the art can understand that the modules or flows in the drawings are not necessarily required for implementing the present application. Those skilled in the art can understand that the modules in the devices in the implementation scenarios can be distributed in the devices in the implementation scenarios according to the description of the implementation scenarios, or can be changed to be located in one or more devices different from the implementation scenarios. The modules in the above implementation scenarios can be combined into one module, or can be further split into multiple sub-modules.

[0083] The above application numbers are only for description, and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only some specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A method of monitoring the air tightness of a high pressure unit, characterized in that, The method comprises the following steps: connecting a first pipeline with the high-pressure unit, and controlling a first valve on a second pipeline to be in a closed state, so that the pressure difference meter is connected with the high-pressure unit through a third pipeline and the first pipeline, and forms a closed air chamber with the connected second pipeline through the first valve, the gas pressure in the closed air chamber being the initial gas pressure of the high-pressure unit, one side of the second pipeline and the third pipeline being connected with the first pipeline, and the other side being connected with the pressure difference meter; monitoring the gas tightness of the high-pressure unit based on the pressure difference meter, and determining that the high-pressure unit is in a gas leakage state when the pressure difference meter shows a pressure difference value; before the step of controlling the first valve on the second pipeline to be in the closed state, the method further comprises the following steps: controlling the first valve to be in an open state, and adjusting the pressure difference meter so that the pressure difference value shown by the pressure difference meter is zero, one end of the pressure difference meter being connected with the high-pressure unit through the second pipeline and the first pipeline, and the other end being connected with the high-pressure unit through the third pipeline and the first pipeline.

2. The method of claim 1, wherein, after the step of determining that the high-pressure unit is in the gas leakage state, the method further comprises the following steps: obtaining the pressure difference value shown by the pressure difference meter, and the equivalent volume of the high-pressure unit and the actual atmospheric pressure corresponding to the location of the high-pressure unit; based on the pressure difference value, the equivalent volume and the actual atmospheric pressure, determining the gas leakage amount of the high-pressure unit.

3. The method of claim 2, wherein, after the step of determining the gas leakage amount of the high-pressure unit, the method further comprises the following steps: comparing the gas leakage amount with a preset leakage amount threshold value to obtain a comparison result; when the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold value, generating an alarm signal and sending the alarm signal to a preset management terminal; when the comparison result indicates that the gas leakage amount is less than the preset leakage amount threshold value, starting a timer, and when the timing time of the timer reaches a time threshold value, re-obtaining the pressure difference value shown by the pressure difference meter, updating the gas leakage amount of the high-pressure unit based on the re-obtained pressure difference value, and obtaining a comparison result according to the updated gas leakage amount, until the comparison result indicates that the gas leakage amount is greater than or equal to the preset leakage amount threshold value.

4. The method of claim 1, wherein, a second valve is arranged on the first pipeline; after the step of connecting the first pipeline with the high-pressure unit, the method further comprises the following steps: controlling the second valve on the first pipeline to be in a closed state every first preset time interval, and calibrating the pressure difference meter by using a preset calibration device.

5. The method of claim 4, wherein, The method further comprises the following steps: when the pressure difference meter is in a monitoring state, controlling the second valve on the first pipeline to be in a closed state every second preset time interval, monitoring the gas tightness of the second pipeline and the third pipeline based on the pressure difference meter, and determining that the second pipeline and / or the third pipeline is in a gas leakage state when the pressure difference meter shows a pressure difference value.

6. The method of claim 1, wherein, before the step of connecting the first pipeline with the high-pressure unit, the method further comprises the following steps: obtain a preset leakage threshold of the high-pressure unit and a preset safety factor of a differential pressure gauge; determine a maximum range of the differential pressure gauge based on the preset leakage threshold and the preset safety factor; invoke a preset database and query a matched differential pressure gauge model from the preset database based on the maximum range of the differential pressure gauge to determine the differential pressure gauge based on the differential pressure gauge model.

7. A device for monitoring the air tightness of a high pressure unit, characterized in that comprise: a valve control module configured to connect a first pipeline to the high-pressure unit and control a first valve on a second pipeline to be in a closed state, so that the differential pressure gauge is connected to the high-pressure unit through a third pipeline and the first pipeline and forms a closed air chamber with the connected second pipeline through the first valve, the air pressure in the closed air chamber being the initial air pressure of the high-pressure unit, one side of the second pipeline and the third pipeline being connected to the first pipeline and the other side being connected to the differential pressure gauge; an air tightness monitoring module configured to monitor the air tightness of the high-pressure unit based on the differential pressure gauge and determine that the high-pressure unit is in a gas leakage state when the differential pressure gauge shows a differential pressure reading; the device further comprises: a differential pressure gauge adjustment module configured to control the first valve to be in an open state before the control of the first valve on the second pipeline to be in the closed state, adjust the differential pressure gauge so that the differential pressure gauge shows a differential pressure reading of zero, one end of the differential pressure gauge being connected to the high-pressure unit through the second pipeline and the first pipeline and the other end being connected to the high-pressure unit through the third pipeline and the first pipeline.

8. A storage medium having stored thereon a computer program, characterized in that The computer program is executed by the processor to implement the method of any one of claims 1-6.

9. A computer device comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, characterized in that, The processor executes the computer program to implement the method of any one of claims 1-6.

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