CN110646151A - Method, device, equipment, system and storage medium for leakage detection - Google Patents
Method, device, equipment, system and storage medium for leakage detection Download PDFInfo
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- CN110646151A CN110646151A CN201910967702.XA CN201910967702A CN110646151A CN 110646151 A CN110646151 A CN 110646151A CN 201910967702 A CN201910967702 A CN 201910967702A CN 110646151 A CN110646151 A CN 110646151A
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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
- G01M3/28—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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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
- G01M3/3263—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 using a differential pressure detector
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Abstract
The invention provides a method, a device, equipment, a system and a storage medium for leakage detection. The leak detection method comprises the following steps: when a leakage detection instruction is received, sealing the inner space of the pipeline to be detected and the material tank to form a leakage detection area communicated with the inner space of the pipeline to be detected and the material tank; controlling an air pump to change air pressure in the leakage detection area, wherein the change of the air pressure in the leakage detection area comprises filling air into the leakage detection area and pumping the air out of the leakage detection area; when the pressure value in the drain detection region is detected to reach a set first pressure value, entering a waiting state; after waiting for a set time, detecting a second pressure value in the detection drain region; and determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value. By using the leakage detection method provided by the invention, the pipeline can be automatically subjected to leakage detection once before production every time, so that the waste of labor cost and time cost caused by manual inspection is avoided.
Description
Technical Field
Embodiments of the present invention relate to detection and control technologies, and in particular, to a method, an apparatus, a device, a system, and a storage medium for leak detection.
Background
In an aseptic filling machine system, the tightness of the material pipeline and the material tank is important for maintaining the sterility. If leakage occurs, bacteria can enter the material pipeline, and the produced products deteriorate in large batch. Because the pipeline is connected with the pipeline through the loose joint structure, the loose joint structure is possibly loosened after a period of use, and leakage occurs at the moment.
At present, whether a loose joint structure is loosened is mainly checked manually at regular intervals, and a large amount of labor cost and time cost are consumed in a manual checking mode, so that a leakage detection device and a detection method suitable for an aseptic filling machine system are urgently needed.
Disclosure of Invention
The invention provides a method, a device, equipment, a system and a storage medium for detecting leakage, which are used for automatically detecting whether a filling system leaks or not and reducing the labor cost.
In a first aspect, an embodiment of the present invention provides a leak detection method, including: when a leakage detection instruction is received, sealing the inner space of the pipeline to be detected and the material tank to form a leakage detection area communicated with the inner space of the pipeline to be detected and the material tank; controlling an air pump to change air pressure in the leakage detection area, wherein the changing of the air pressure in the leakage detection area comprises filling air into the leakage detection area and pumping the air out of the leakage detection area; when the pressure value in the drain detection region is detected to reach a set first pressure value, entering a waiting state; after waiting for a set time, detecting a second pressure value in the drain detection region; and determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
In a second aspect, an embodiment of the present invention provides a leak detection apparatus, including: the detection area isolation module is used for sealing the inner space of the pipeline to be detected and the material tank when a leakage detection instruction is received, so as to form a detection area communicated with the inner space of the pipeline to be detected and the material tank; the air inflation module is used for controlling the air pump to change the air pressure in the leakage detection area, wherein the change of the air pressure in the leakage detection area comprises the steps of filling air into the leakage detection area and pumping the air out of the leakage detection area; the leakage detection module is used for entering a waiting state when the pressure value in the leakage detection area reaches a set first pressure value; after waiting for a set time, detecting a second pressure value in the drain detection region; and determining whether the pipeline to be detected and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
In a third aspect, an embodiment of the present invention provides a leak detection system, including a controller, an air pump, and a pressure sensor, where the controller is configured to execute the leak detection method described in the embodiment of the present invention; the air pump is communicated with a material tank or a pipeline to be detected and is used for filling air into the material tank or the pipeline to be detected or extracting air from the material tank or the pipeline to be detected; the pressure sensor is arranged on the material tank or the pipeline to be detected and used for collecting pressure information in the material tank or the pipeline to be detected and sending the pressure information to the controller; the controller is electrically connected with the inflation device and the pressure sensor respectively.
In a fourth aspect, an embodiment of the present invention provides an apparatus, where the apparatus includes: one or more processors; a storage device, configured to store one or more programs, which when executed by the one or more processors, cause the one or more processors to implement the leak detection method according to the embodiment of the present invention.
In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the leak detection method described in the embodiment of the present invention.
Compared with the prior art, the invention has the beneficial effects that: when the leakage detection is carried out, gas is filled into the leakage detection area, and whether the leakage detection area leaks or not is determined according to the air pressure difference in the leakage detection area before the gas is filled.
Drawings
FIG. 1 is a flow chart of a leak detection method according to one embodiment;
FIG. 2 is a schematic structural view of a leak detection device according to a second embodiment;
FIG. 3 is a schematic structural view of a leak detection system according to a third embodiment;
fig. 4 is a block diagram of an apparatus suitable for use in the fourth embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
The present embodiment provides a leak detection method, which is applicable to the case of leak detection of an aseptic filling system, and the method can be executed by a leak detection apparatus, which can be implemented in a software and/or hardware manner, and the apparatus can be configured in electronic equipment, such as a server or terminal equipment, and typical terminal equipment includes a computer or a PLC, etc. The method comprises the following steps:
And 2, controlling the air pump to change the air pressure in the leakage detection area, wherein the change of the air pressure in the leakage detection area comprises the steps of filling air into the leakage detection area and pumping the air out of the leakage detection area.
And 3, entering a waiting state when the pressure value in the detection drain region reaches a set first pressure value.
And 4, after waiting for the set time, detecting a second pressure value in the detection drain region.
And 5, determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
Fig. 1 is a flow chart of a leak detection method in the first embodiment, and referring to fig. 1, as an alternative, the leak detection method specifically includes the steps of:
s101, when a leakage detection instruction is received, the material pipeline and the inner space of the material tank are sealed, and a leakage detection area, wherein the material pipeline is communicated with the inner space of the material tank, is formed.
In this step, the material tank is a storage tank for receiving sterile materials, the material tank comprises a tank body and a valve set, and pipelines connected with the material tank comprise a steam pipeline, a Cleaning In Place (CIP) pipeline, a sterile air pipeline and a material pipeline. Optionally, in this step, the first valve is controlled to be opened and the second valve is controlled to be closed, so that the material pipeline and the inner space of the material tank are sealed. The first valve is used for communicating the material tank with the material pipeline, and the second valve is used for communicating the material tank with the non-material pipeline.
And S102, controlling the inflating equipment to inflate gas into the leakage detection area.
In the step, the inflation equipment is connected with the pipeline to be detected in the leakage detection area through the sealed flange, and as an optimal scheme, the gas filled into the leakage detection area is sterile gas so as to ensure that secondary pollution to the material tank and the material pipeline cannot be caused during leakage detection.
S103, entering a waiting state when detecting that the pressure value in the detection drain region reaches a set first pressure value.
In the step, the value of the first pressure value is determined according to the pressure resistance value of the material tank, and preferably, the range of the first pressure value is 0.2 Mpa-0.3 Mpa.
And S104, after waiting for the set time, detecting a second pressure value in the detection drain region.
In step S103 and step S104, the waiting state includes a steady voltage state and a pressure holding state, optionally. The steady state is entered for a first set time, illustratively 30S, and the dwell state is entered for a second set time, illustratively 60S. In the process of charging air into the material tank and the material pipeline, the pressure inside the leakage detection area continuously changes, so when the pressure sensor detects that the pressure value in the leakage detection area reaches a set first pressure value for the first time, the air pressure inside the leakage detection area may still fluctuate, and in order to avoid inaccurate detection results caused by air pressure fluctuation, when the air pressure inside the leakage detection area reaches the first pressure value, the pressure stabilization state is firstly entered, and in the state, if the air pressure inside the leakage detection area is reduced to be lower than the first air pressure value, the air charging equipment continuously charges a certain amount of air into the leakage detection area, so that the air pressure inside the leakage detection area can be stabilized at the first air pressure value after the pressure stabilization state is ensured. In order to detect whether the leakage detection area leaks or not, a pressure maintaining state is set, and in the state, the inflating equipment does not work any more, so that whether the leakage detection area leaks or not is judged by utilizing the air pressure value in the leakage detection area after the pressure maintaining state is finished.
And S105, determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
In this step, the second pressure value refers to the pressure value inside the measured drain region after the pressure maintaining state is finished. Specifically, in this embodiment, if the difference between the first pressure value and the second pressure value is greater than or equal to 0.001MPa, it is determined that the material pipeline and the material tank are leaked; and if the difference value between the first pressure value and the second pressure value is less than 0.001MPa, determining that the material pipeline and the material tank are not leaked.
Optionally, after determining whether the material pipeline and the material tank leak according to the difference between the first pressure value and the second pressure value, the method further includes: and outputting the leakage detection result, for example, prompting a detection person through an acoustic alarm device when the leakage detection area leaks, or displaying the leakage detection result on a display screen.
After outputting the leak detection result, the method further comprises: and controlling the relief valve to open, and relieving the pressure of the leakage detection area so as to recover the pressure value of the leakage detection area to the initial pressure value. The pressure relief valve in this step may be a pressure regulating valve on the material tank. The initial pressure refers to a pressure value inside the leak detection region when the leak detection region is not filled with gas.
As an alternative, the leak detection method may further specifically include the steps of:
s201, when a leakage detection instruction is received, sealing the inner space of the pipeline to be detected and the inner space of the material tank to form a leakage detection area, wherein the pipeline to be detected is communicated with the inner space of the material tank.
The material tank is a storage tank for receiving sterile materials, and comprises a tank body and a valve group, wherein the valve group is used for connecting the material tank with the pipeline to be detected, and the pipeline to be detected comprises a steam pipeline, a CIP pipeline, a sterile air pipeline and a material pipeline. In the step, the opening and closing of the valve set are controlled, so that the inner space of the pipeline to be detected and the material tank is sealed. In the step, the first valve refers to a valve for communicating the material tank with the current pipeline to be detected, and the second valve refers to a valve for communicating other pipelines to be detected. For example, the steam pipeline is communicated with the inner space of the material tank through the valve group, and other pipelines are not communicated with the inner space of the material tank, namely, a first valve corresponding to the steam pipeline in the valve group is opened, and second valves corresponding to other pipelines in the valve group are closed, so that a leakage detection area for the steam pipeline is formed; the sterile air pipeline is communicated with the inner space of the material tank through the valve group, other pipelines are not communicated with the inner space of the material tank, and a leakage detection area for the sterile air pipeline is formed. Optionally, in this embodiment, the leakage detection regions for different types of pipelines to be detected are formed by controlling the valve set, and leakage detection is performed on each leakage detection region in sequence.
S202, controlling the air pump to change the air pressure in the leakage detection area, and entering a waiting state when the pressure value in the leakage detection area reaches a set first pressure value.
In this step, the function of the air pump includes inflation and air extraction. The first pressure value comprises a leakage detection area internal air pressure value set when the leakage detection area is inflated and a leakage detection area internal air pressure value set when the leakage detection area is exhausted. Optionally, the range of the first pressure value during inflation is 0.2 Mpa-0.3 Mpa, and the range of the first pressure value during air exhaust is 0 Mpa-0.1 Mpa.
S203, after waiting for a set time, detecting a second pressure value in the detection drain region.
In step S202 and step S203, similar to the content described in the first embodiment, the waiting state in the present embodiment includes a steady-state and a pressure-maintaining state. And after entering the pressure stabilizing state, the first set time lasts, and after entering the pressure maintaining state, the second set time lasts. The purpose of setting up steady voltage state is in order to ensure that the atmospheric pressure of surveying the inside atmospheric pressure value of drain region after steady voltage state can be stabilized at first atmospheric pressure value, and during the pressurize state, the air pump is no longer worked to whether the atmospheric pressure value of surveying the inside drain region after utilizing the pressurize state to finish judges the area of leaking.
S204, determining whether the pipeline and the material tank to be detected are leaked or not according to the difference value of the first pressure value and the second pressure value.
In this step, the second pressure value refers to the pressure value inside the measured drain region after the pressure maintaining state is finished. Specifically, in this embodiment, if the absolute value of the difference between the first pressure value and the second pressure value is greater than or equal to 0.001MPa, it is determined that the current pipeline and the material tank to be detected are leaked; and if the absolute value of the difference value between the first pressure value and the second pressure value is less than 0.001MPa, determining that the pipeline and the material tank to be detected do not leak currently.
S205, controlling the pressure relief valve to open so that the pressure value of the measuring drain region is recovered to the initial pressure value.
The leakage detection method provided by the embodiment can completely detect whether different pipelines connected with the material tank have leakage or not. Illustratively, the leak hunting zone includes steam pipeline test drain region, CIP pipeline test drain region and sterile air pipeline test drain region, then the leak hunting process includes:
step 4, determining whether the steam pipeline and the material tank leak or not according to the difference value between the second pressure value and the first pressure value;
step 7, controlling an air pump to pump air from the CIP pipeline test drain region, when the pressure value in the CIP pipeline test drain region reaches a first pressure value set during air pumping, entering a pressure stabilizing state and continuing for a first set time, and entering a pressure maintaining state and continuing for a second set time;
step 8, detecting a second pressure value in the CIP pipeline test drain region;
step 9, determining whether the CIP pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value;
step 10, communicating the CIP pipeline and the sterile air pipeline with the inner space of the material tank by controlling the opening and closing of the valve group to form a second space;
step 11, controlling an air pump to inflate the second space, and when the air pressure in the second space is an initial air pressure value, controlling the opening and closing of a valve group to enable the sterile air pipeline and the inner space of the material tank to form a sealing area, wherein the CIP pipeline is not communicated with the inner space of the material tank any more at the moment, so that a sterile air pipeline leakage detecting area is formed;
step 12, controlling an air pump to inflate the sterile air pipeline test drain region, when the pressure value in the sterile air pipeline test drain region reaches a first pressure value set during inflation, entering a pressure stabilizing state and continuing for a first set time, and entering a pressure maintaining state and continuing for a second set time;
step 13, detecting a second pressure value in the test drain region of the sterile air pipeline;
step 14, determining whether the sterile air pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value;
and step 15, controlling the relief valve to open so as to enable the pressure value of the leakage detection area to be recovered to the initial pressure value.
Example two
Fig. 2 is a schematic structural diagram of a leak detection apparatus in the third embodiment, and referring to fig. 2, the present embodiment provides a leak detection apparatus, including:
the detection area isolation module 1 is used for sealing the inner space of the material pipeline to be detected and the inner space of the material tank when receiving a leakage detection instruction, and forming a detection drain area which is communicated with the inner space of the material pipeline to be detected and the inner space of the material tank.
And the inflation module 2 is used for controlling the air pump inflation equipment to change the air pressure in the leakage detection area, wherein the change of the air pressure in the leakage detection area comprises the steps of filling air into the leakage detection area and pumping the air out of the leakage detection area.
The leakage detection module 3 is used for entering a waiting state when detecting that the pressure value in the detection drain region reaches a set first pressure value; after waiting for a set time, detecting a second pressure value in the detection drain region; and determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a leak detection system in the fourth embodiment, and referring to fig. 3, the present embodiment provides a leak detection system, including: a controller 4, an air pump 5 and a pressure sensor 6, wherein the controller 4 is used for executing the leakage detection method described in the first embodiment. In this embodiment, the controller 4 is a PLC.
The air pump 5 is communicated with the material tank or the pipeline to be detected and is used for filling air into the material tank or the pipeline to be detected. The pressure sensor 6 is arranged on the material tank or the pipeline to be detected and used for collecting pressure information in the material tank or the pipeline to be detected and sending the pressure information to the controller 4; the controller 4 is electrically connected to the air pump 5 and the pressure sensor 6, respectively. The controller 4 is also electrically connected with a valve group in the material tank, and the valve group comprises a first valve, a second valve and a pressure release valve.
Example four
This embodiment proposes an apparatus, fig. 4 is a block diagram of an apparatus suitable for use in the fifth embodiment, and referring to fig. 4, an apparatus 712 is represented in the form of a general-purpose apparatus. Components of device 712 may include, but are not limited to: one or more processors 716, a storage device 728, and a bus 718 that couples the various system components (including the storage device 728 and the processors 716).
Program/utility 740 having a set (at least one) of program modules 742 may be stored, for instance, in storage 728, such program modules 742 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may include an implementation of a network environment. Program modules 742 generally perform the functions and/or methodologies of embodiments of the invention as described herein.
The device 712 may also communicate with one or more external devices 714 (e.g., keyboard, pointing terminal, display 724, etc.), with one or more terminals that enable a user to interact with the device 712, and/or with any terminals (e.g., network card, modem, etc.) that enable the device 712 to communicate with one or more other computing terminals. Such communication may occur through input/output (I/O) interfaces 722. Also, the device 712 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network, such as the internet) via the Network adapter 720. As shown in FIG. 4, network adapter 720 communicates with the other modules of device 712 via bus 718. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with device 712, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.
EXAMPLE five
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the leak detection method according to any of the first to third embodiments. When a leakage detection instruction is received, the material pipeline and the inner space of the material tank are sealed to form a leakage detection area communicated with the inner space of the material pipeline and the inner space of the material tank, the inflation equipment is controlled to inflate gas into the leakage detection area, after waiting for a set time, a second pressure value in the leakage detection area is detected, and whether the material pipeline and the material tank are leaked or not is determined according to a difference value of the first pressure value and the second pressure value. Or when a leakage detection instruction is received, the internal space of the pipeline and the material tank to be detected is sealed, a leakage detection area communicated with the internal space of the pipeline and the material tank to be detected is formed, the air pump is controlled to change the air pressure in the leakage detection area, when the pressure value in the leakage detection area reaches a set first pressure value, the pipeline and the material tank enter a waiting state, after the waiting set time, a second pressure value in the leakage detection area is detected, whether the pipeline and the material tank to be detected are leaked or not is determined according to the difference value of the first pressure value and the second pressure value, and the pressure relief valve is controlled to be opened so that the pressure value in the leakage detection area is recovered to.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A leak detection method, comprising:
when a leakage detection instruction is received, sealing the inner space of the pipeline to be detected and the material tank to form a leakage detection area communicated with the inner space of the pipeline to be detected and the material tank;
controlling an air pump to change air pressure in the leakage detection area, wherein the changing of the air pressure in the leakage detection area comprises filling air into the leakage detection area and pumping the air out of the leakage detection area;
when the pressure value in the drain detection region is detected to reach a set first pressure value, entering a waiting state;
after waiting for a set time, detecting a second pressure value in the drain detection region;
and determining whether the material pipeline and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
2. The method of claim 1, wherein sealing the interior space of the pipe to be tested and the material tank to form a leak detection zone in communication with the interior space of the material tank comprises:
and controlling a first valve to be opened and a second valve to be closed, wherein the first valve is used for communicating the material tank with the pipeline to be detected, and the second valve is used for communicating the material tank with the pipeline to be detected.
3. The method of claim 1, wherein the wait state comprises a steady state and a dwell state;
waiting a set time, comprising:
entering a voltage stabilization state and waiting for a first set time;
and entering a pressure maintaining state and waiting for a second set time.
4. The method of claim 1, wherein determining whether the line to be tested and the material tank are leaking based on the difference between the first pressure value and the second pressure value comprises:
if the difference value between the first pressure value and the second pressure value is greater than or equal to 0.001MPa, determining that the pipeline to be detected and the material tank are leaked;
and if the difference value between the first pressure value and the second pressure value is less than 0.001MPa, determining that the pipeline to be detected and the material tank are not leaked.
5. The method of claim 1, wherein after determining whether the to-be-detected pipeline and the material tank are leaking according to the difference between the first pressure value and the second pressure value, the method further comprises:
and outputting a leakage detection result.
6. The method of claim 5, after outputting the leak detection result, further comprising:
and controlling the relief valve to open, and relieving the pressure of the drain area to restore the pressure value of the drain area to the initial pressure value.
7. A leak detection apparatus, comprising:
the detection area isolation module is used for sealing the inner space of the pipeline to be detected and the material tank when a leakage detection instruction is received, so as to form a detection area communicated with the inner space of the pipeline to be detected and the material tank;
the air inflation module is used for controlling the air pump to change the air pressure in the leakage detection area, wherein the change of the air pressure in the leakage detection area comprises the steps of filling air into the leakage detection area and pumping the air out of the leakage detection area;
the leakage detection module is used for entering a waiting state when the pressure value in the leakage detection area reaches a set first pressure value; after waiting for a set time, detecting a second pressure value in the drain detection region; and determining whether the pipeline to be detected and the material tank leak or not according to the difference value of the first pressure value and the second pressure value.
8. A leak detection system comprising a controller, an air pump, and a pressure sensor, the controller being configured to perform the leak detection method of any one of claims 1-6;
the air pump is communicated with a material tank or a pipeline to be detected and is used for filling air into the material tank or the pipeline to be detected or extracting air from the material tank or the pipeline to be detected; the pressure sensor is arranged on the material tank or the pipeline to be detected and used for collecting pressure information in the material tank or the pipeline to be detected and sending the pressure information to the controller; the controller is electrically connected with the inflation device and the pressure sensor respectively.
9. An apparatus, characterized in that the apparatus comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the leak detection method of any of claims 1-6.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the leak detection method according to any one of claims 1-6.
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| CN201910967702.XA CN110646151A (en) | 2019-10-12 | 2019-10-12 | Method, device, equipment, system and storage medium for leakage detection |
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| CN201910967702.XA CN110646151A (en) | 2019-10-12 | 2019-10-12 | Method, device, equipment, system and storage medium for leakage detection |
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| CN111366314A (en) * | 2020-04-27 | 2020-07-03 | 苏州法拉鼎电机有限公司 | Airtightness detection method and device and storage medium |
| CN112082708A (en) * | 2020-08-20 | 2020-12-15 | 济南鑫光试验机制造有限公司 | Device and method for detecting leakage in hydraulic jack |
| CN113060431A (en) * | 2021-05-08 | 2021-07-02 | 焦作大学 | Biological chemical material storage method based on Internet of things |
| CN113405738A (en) * | 2021-06-01 | 2021-09-17 | 奥萨崎医疗科技有限公司 | Blood pressure air pump pressure leakage detection and alarm device |
| CN115165238A (en) * | 2022-08-11 | 2022-10-11 | 中国核动力研究设计院 | Detection system and method |
| CN117739532A (en) * | 2023-12-21 | 2024-03-22 | 广东昂舍科技有限公司 | Method, system and device for detecting leakage of coil pipe in water tank |
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