CN113202725A - Leakage gas recovery system - Google Patents

Leakage gas recovery system Download PDF

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Publication number
CN113202725A
CN113202725A CN202110640157.0A CN202110640157A CN113202725A CN 113202725 A CN113202725 A CN 113202725A CN 202110640157 A CN202110640157 A CN 202110640157A CN 113202725 A CN113202725 A CN 113202725A
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China
Prior art keywords
gas
leakage
recovery
management platform
subsystem
Prior art date
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Pending
Application number
CN202110640157.0A
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Chinese (zh)
Inventor
石磊
侯宇程
王谦
赵禹辰
李明忆
蔡睿
于彤
方烈
任志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Beijing Electric Power Co Ltd
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Publication date
Application filed by State Grid Corp of China SGCC, State Grid Beijing Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202110640157.0A priority Critical patent/CN113202725A/en
Publication of CN113202725A publication Critical patent/CN113202725A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/12Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123Fluid connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16Filtration; Moisture separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00Testing machines, pumps, or pumping installations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The present application provides a leaking gas recovery system, the system comprising: the gas leakage monitoring subsystem is used for monitoring the concentration of the leaked gas in the air to obtain concentration data; the management platform is in communication connection with the gas leakage monitoring subsystem and is used for receiving the concentration data, determining whether leakage occurs according to the concentration data and sending a recovery instruction under the condition that the leakage occurs; and the leaked gas recovery subsystem is in communication connection with the management platform and is used for receiving a recovery instruction and recovering leaked gas according to the recovery instruction. The leaked gas recovery system determines whether leakage occurs or not by monitoring the concentration of leaked gas in the air, and controls the leaked gas recovery subsystem to recover the leaked gas under the condition of determining leakage, so that the leaked gas can be recovered in time, operation and maintenance personnel can safely enter the site to perform fault diagnosis and equipment repair, and the problem that the leaked gas is difficult to recover in time in the prior art is solved.

Description

Leakage gas recovery system
Technical Field
The application relates to the technical field of leaked gas recovery, in particular to a leaked gas recovery system.
Background
When sudden faults or leakage occur in a GIS station room of a transformer substation, the gas leakage rate is large, the gas leakage speed is high, if no external power is provided, the leaked SF6 gas can be gradually diffused to the whole space in the GIS room and concentrated and accumulated to the vicinity of the ground, and SF6 exceeding the safe concentration can cause that operation and maintenance personnel cannot safely enter the site to perform fault diagnosis and equipment repair. Therefore, after SF6 gas leakage occurs in the GIS chamber, the leakage is rapidly judged, the leakage source is located, and then rapid recovery is carried out through an SF6 gas leakage early warning recovery system.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The main objective of the application provides a leak gas recovery system to it is difficult to in time retrieve the problem of leaking gas among the prior art to solve.
According to an aspect of an embodiment of the present invention, there is provided a leakage gas recovery system including: the gas leakage monitoring subsystem is used for monitoring the concentration of the leaked gas in the air to obtain concentration data; the management platform is in communication connection with the gas leakage monitoring subsystem and is used for receiving the concentration data, determining whether leakage occurs according to the concentration data and sending a recovery instruction under the condition that the leakage is determined to occur; and the leaked gas recovery subsystem is in communication connection with the management platform and is used for receiving the recovery instruction and recovering the leaked gas according to the recovery instruction.
Optionally, the management platform comprises an analysis unit that determines that a leak has occurred if the concentration data is greater than a predetermined multiple of an average value of the concentration data over a predetermined time.
Optionally, the gas leakage monitoring subsystem includes a plurality of infrared light sensors and/or a plurality of quantum cascade laser sensors, and the distances between any two adjacent infrared light sensors or quantum cascade laser sensors are the same.
Optionally, the operation mode of the management platform includes a first operation mode and a second operation mode, in case no leakage is determined to occur, the management platform enters the first operation mode to predict a location of a leakage point where a leakage is likely to occur according to the concentration data, in case a leakage is determined to occur, the management platform enters the second operation mode to determine a location of a leakage point according to the concentration data.
Optionally, a sampling period of the first operating mode is a first sampling period, a sampling period of the first operating mode is a second sampling period, a ratio of the first sampling period to the second sampling period is greater than 100, and the sampling period is a period in which the management platform receives the concentration data.
Optionally, the leakage gas recovery subsystem comprises: a gas collection device for collecting air mixed with the leakage gas; and the purification and recovery device is connected with the gas collecting device and is used for treating the air collected by the gas collecting device to obtain the purified leakage gas.
Optionally, the air collecting device comprises an air collecting port which is an inlet for the air mixed with the leakage air to enter the air collecting device, and a movement mechanism for moving the air collecting port in a horizontal direction and/or a vertical direction.
Optionally, the purge recovery device comprises: the processing unit is connected with the gas collecting device and used for removing impurities in the air collected by the gas collecting device; and the cold trap unit is connected with the processing unit and used for realizing the separation of air and the leaked gas to obtain the purified leaked gas.
Optionally, the system further comprises: and the data transmission subsystem is in communication connection with the gas leakage monitoring subsystem, the management platform and the leaked gas recovery subsystem respectively, and is used for transmitting the concentration data acquired by the gas leakage monitoring subsystem to the management platform and transmitting the recovery instruction sent by the management platform to the leaked gas recovery subsystem.
Optionally, the data transmission subsystem has a wired transmission mode and a wireless transmission mode, the wireless transmission mode is a normal transmission mode, and the wired transmission mode is a standby transmission mode.
In an embodiment of the present invention, in the leaked gas recycling system, the gas leakage monitoring subsystem monitors a concentration of a leaked gas in air to obtain a concentration data, the management platform determines whether a leakage occurs according to the concentration data, and sends a recycling instruction if the leakage occurs, and the leaked gas recycling subsystem recycles the leaked gas according to the recycling instruction. The leaked gas recovery system determines whether leakage occurs or not by monitoring the concentration of leaked gas in the air, and controls the leaked gas recovery subsystem to recover the leaked gas under the condition of determining leakage, so that the leaked gas can be recovered in time, operation and maintenance personnel can safely enter the site to perform fault diagnosis and equipment repair, and the problem that the leaked gas is difficult to recover in time in the prior art is solved.
Drawings
The accompanying drawings, which 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 and are not intended to limit the application. In the drawings:
FIG. 1 shows a schematic diagram of a gas leak monitoring subsystem according to an embodiment of the present application;
FIG. 2 shows a schematic distribution diagram of an infrared light sensor and a quantum cascade laser sensor according to an embodiment of the present application;
fig. 3 shows a schematic distribution diagram of a gas collecting device according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a gas leak monitoring subsystem; 20. a management platform; 30. a leakage gas recovery subsystem; 31. an air collection port; 32. a motion mechanism; 40. a data transmission subsystem.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
For convenience of description, some terms or expressions referred to in the embodiments of the present application are explained below:
and a GIS room: the semi-closed space is used for placing gas insulated fully-closed combined electrical equipment.
As mentioned in the background of the invention, it is difficult to recover leaking gas in a timely manner in the prior art, and in order to solve the above problems, in an exemplary embodiment of the present application, a leaking gas recovery system is provided.
According to an embodiment of the present application, there is provided a leaking gas recovery system, as shown in fig. 1, including:
the gas leakage monitoring subsystem 10 is used for monitoring the concentration of the leaked gas in the air to obtain concentration data;
a management platform 20, communicatively connected to the gas leakage monitoring subsystem 10, for receiving the concentration data, determining whether a leakage occurs according to the concentration data, and sending a recovery instruction if a leakage is determined to occur;
and a leaking gas recovery subsystem 30, communicatively connected to the management platform 20, for receiving the recovery command and recovering the leaking gas according to the recovery command.
In the leaked gas recovery system, the gas leakage monitoring subsystem monitors the concentration of leaked gas in the air to obtain concentration data, the management platform determines whether leakage occurs according to the concentration data, and sends a recovery instruction under the condition of determining leakage, and the leaked gas recovery subsystem recovers the leaked gas according to the recovery instruction. The leaked gas recovery system determines whether leakage occurs or not by monitoring the concentration of leaked gas in the air, and controls the leaked gas recovery subsystem to recover the leaked gas under the condition of determining leakage, so that the leaked gas can be recovered in time, operation and maintenance personnel can safely enter the site to perform fault diagnosis and equipment repair, and the problem that the leaked gas is difficult to recover in time in the prior art is solved.
In an embodiment of the present application, the management platform includes an analysis unit, and the analysis unit determines that a leak occurs when the concentration data is greater than a predetermined multiple of an average value of the concentration data in a predetermined time. Specifically, the person skilled in the art may select an appropriate predetermined time and predetermined multiple according to actual situations to reduce the possibility of misjudgment, for example, the predetermined time is 3min, and the predetermined multiple is 2 times.
In an embodiment of the present application, as shown in fig. 2, the gas leakage monitoring subsystem includes a plurality of infrared light sensors and/or a plurality of quantum cascade laser sensors, and the distances between any two adjacent infrared light sensors or quantum cascade laser sensors are the same. In particular, with leaking gas SF6For example, a plurality of infrared light sensors are uniformly distributed in the GIS room so as to comprehensively monitor the leaked gas SF in the air of each part of the GIS room6The concentration, infrared light sensor and quantum cascade laser sensor can all detectMeasuring leakage gas SF6The concentration of (2) can be monitored by a single sensor, or by two sensors simultaneously. Specifically, in fig. 2, I to XVI are 16 storage devices for leaking gas, for example, steel cylinders, 1 to 21 are 21 infrared light sensors, 22A, 23A, 24A, and 25A are emission ends of four quantum cascade laser sensors, 22B, 23B, 24B, and 25A are receiving ends of four quantum cascade laser sensors, a distance between two adjacent infrared light sensors is 11m, and a distance between the emission end and the receiving end of the quantum cascade laser sensor is 22 m.
In an embodiment of the present application, the operation mode of the management platform includes a first operation mode and a second operation mode, and in a case where it is not determined that a leak occurs, the management platform enters the first operation mode to predict a location of a leak that may occur based on the concentration data, and in a case where it is determined that a leak occurs, the management platform enters the second operation mode to determine a location of a leak based on the concentration data. Specifically, the first working mode can be further divided into a micro-leakage detection mode and a GIS room running state analysis mode, in the micro-leakage detection mode, the intelligent management platform periodically acquires concentration data, analyzes whether micro leakage of leaked gas exists according to the concentration data of the leaked gas for a period of time, and starts a positioning function of a micro leakage source of the leaked gas if the micro leakage exists. In a GIS room operation state analysis mode, historical data is periodically utilized to carry out big data analysis, the abnormal operation state of the system is actively identified, the position of a possible leakage source is predicted, the mode is an important supplement to a conventional leakage detection mode, and leakage gas leakage fault judgment under more complex conditions can be dealt with along with the development of a big data analysis technology and a state identification technology. And under the above-mentioned second mode of operation, need carry out the quick location to the leak source to control the gas recovery subsystem that leaks and carry out high-efficient recovery.
In an embodiment of the present application, a sampling period of the first operating mode is a first sampling period, a sampling period of the first operating mode is a second sampling period, and the first sampling period and the second sampling period areThe ratio of the sampling period is greater than 100, and the sampling period is the period of receiving the concentration data by the management platform. The ratio of the first sampling period to the second sampling period is greater than 100, and the reason why the concentration data is acquired by adopting the long sampling period to judge the micro leakage is that when the micro leakage gas SF occurs in the gas chamber6After leakage, the leaked gas SF in the gas chamber6The concentration of the leaked gas SF is not reflected to the difference of the sensor values in a short time under the further dilution of the surrounding air, and the range of the leaked gas SF is regulated by the safety standard6The trace accumulation does not cause serious consequences, so the method of increasing the sampling interval is considered to lead the trace leakage gas SF to be leaked6The judgment is carried out on the trace leakage within the range which can be accurately identified by the sensor, so that the possibility of misjudgment is reduced.
In the method for locating a leak, K is first calculatedi(t),Ki(t)=[yi(t)-yi(t-dt)]/yi(t) wherein yi(t) is the leakage gas concentration at time t at monitoring point i, dt is the second sampling period, and then, for Ki(t) performing exponential fitting to obtain min | | | Ki(t)-Ae-Pi(t)||2T is 0, dt, 2dt, … T, T being the sample interval length, | | |, is the 2 norm, Pi(t) is the concentration characteristic quantity at the monitoring point i at the time t, i.e. the solution Pi(t) to determine the location of a single point leak or the extent of a multiple point leak from pi (t).
In an embodiment of the present application, the leaked gas recycling subsystem includes a gas collecting device and a purifying recycling device, wherein the gas collecting device is configured to collect air mixed with the leaked gas; the purification recovery device is connected with the gas collecting device and is used for treating the air collected by the gas collecting device to obtain the purified leakage gas. Specifically, the gas collecting device collects the air mixed with the leaked gas, and sends the air to the purification and recovery device for treatment to obtain the purified leaked gas, so that the recovery and reuse of the leaked gas are completed.
In one embodiment of the present application, as shown in fig. 3, the gas collecting device includes a gas collecting opening 31 and a moving mechanism 32, the gas collecting opening 31 is an inlet for the air mixed with the leaked gas to enter the gas collecting device, and the moving mechanism 32 is used for moving the gas collecting opening 31 in a horizontal direction and/or a vertical direction. Specifically, the motion mechanism drives the gas collecting port to move on the rail, so that the gas collecting port is distributed at a proper position and height, and the efficiency of recovering leaked gas is improved.
In an embodiment of the present application, the purification and recovery device includes a processing unit and a cold trap unit, wherein the processing unit is connected to the gas collecting device and is configured to remove impurities from the air collected by the gas collecting device; the cold trap unit is connected to the processing unit, and is configured to cool the leaking gas to a liquid state to obtain the purified leaking gas. In particular, with leaking gas SF6For example, the purification and recovery device further comprises an inversion unit, a power unit and a storage unit, wherein the inversion unit contains SF6Gas cylinder inverting device and vaporizing device. The steel cylinder reversing device consists of a clamping mechanism, a cylinder lifting mechanism and a cylinder rotating mechanism and can be used for filling SF6After the steel cylinder is clamped, the steel cylinder is lifted and rotated to any position for locking. Its function is to make SF in the steel cylinder6The liquid flows out quickly, and the entry of miscellaneous gas into the treatment system is prevented or reduced. The vaporizing device mainly comprises a heating mechanism, a power mechanism, a filtering system, a control mechanism and the like, and is used for rapidly vaporizing the SF6 flowing into the liquid6Gas flow rate and pressure control, increasing SF6The gas purification treatment efficiency is that the treatment unit mainly comprises a buffer device, an adsorption tower, a flowmeter, an alkaline liquid tank, an inlet filter, an outlet filter, an online sampling instrument, various valves, a pressure reducing valve, a pressure gauge, a pipeline, accessories and the like, and the treatment unit is used for removing SF6Carbon tetrafluoride, carbon monoxide, carbon dioxide, sulfur dioxide, hydrogen sulfide, hexafluoroethane, octafluoropropane, sulfuryl fluoride, thionyl fluoride, sulfuryl tetrafluoride, solid particles, moisture and other impurities in the sulfur dioxide, hydrogen sulfide, hexafluoroethane, octafluoropropane, sulfuryl fluoride, sulfur tetrafluoride, solid particles, moisture and other impurities, and can monitor SF in real time6The power unit is composed of an inlet manual ball valve, an inlet vacuum pressure gauge, an inlet pressure reducing valve, an inlet buffer tank, a compressor and a vacuumThe system comprises a pump, an inlet safety valve, an outlet one-way valve, a condensing system, an air separation device, an outlet vacuum pressure gauge, an outlet manual ball valve and the like. The gas treated in the treatment unit is pumped into a cold trap unit of the system by a compressor for further purification and separation, and the cold trap unit comprises a cryogenic host, a cryogenic container, a low-temperature liquid injection system, a control system and the like. The main deep cooling is SF6The solid-liquid separation provides refrigeration power and temperature return power, and the cryogenic container is mainly used for SF6The solid-liquid separation and low-temperature liquid injection system mainly uses qualified SF6Injecting into clean steel cylinder in liquid state, wherein the unit is mainly used for removing SF6Air and other trace impurities in the gas, the SF6The gas purification treatment system can make the treated SF6The gas completely meets the standard requirements of GB/T12022-2006 industrial sulfur hexafluoride and can further realize SF6Recycling and reusing the gas.
In an embodiment of the present application, as shown in fig. 1, the system further includes a data transmission subsystem 40, where the data transmission subsystem 40 is in communication connection with the gas leakage monitoring subsystem 10, the management platform 20, and the leaked gas recovery subsystem 30, respectively, and is configured to transmit the concentration data acquired by the gas leakage monitoring subsystem 10 to the management platform 20, and further transmit the recovery instruction sent by the management platform 20 to the leaked gas recovery subsystem 30. Specifically, the data transmission subsystem includes a data transmission controller and an input/output interface, and the data transmission controller is responsible for allocating and managing the transmission direction and mode of data.
In an embodiment of the present application, the data transmission subsystem has a wired transmission mode and a wireless transmission mode, the wireless transmission mode is a normal transmission mode, and the wired transmission mode is a standby transmission mode. Specifically, the data input/output interface is compatible with a wired transmission mode and a wireless transmission mode, and supports a 5G transmission mode, wherein the 5G transmission mode is a conventional mode, and the wired transmission mode is an emergency standby transmission mode.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
in the leaked gas recovery system, the gas leakage monitoring subsystem monitors the concentration of leaked gas in the air to obtain concentration data, the management platform determines whether leakage occurs according to the concentration data and sends a recovery instruction under the condition that leakage occurs, and the leaked gas recovery subsystem recovers the leaked gas according to the recovery instruction. The leaked gas recovery system determines whether leakage occurs or not by monitoring the concentration of leaked gas in the air, and controls the leaked gas recovery subsystem to recover the leaked gas under the condition of determining leakage, so that the leaked gas can be recovered in time, operation and maintenance personnel can safely enter the site to perform fault diagnosis and equipment repair, and the problem that the leaked gas is difficult to recover in time in the prior art is solved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A leaking gas recovery system, comprising:
the gas leakage monitoring subsystem is used for monitoring the concentration of the leaked gas in the air to obtain concentration data;
the management platform is in communication connection with the gas leakage monitoring subsystem and is used for receiving the concentration data, determining whether leakage occurs according to the concentration data and sending a recovery instruction under the condition that the leakage is determined to occur;
and the leaked gas recovery subsystem is in communication connection with the management platform and is used for receiving the recovery instruction and recovering the leaked gas according to the recovery instruction.
2. The system of claim 1, wherein the management platform comprises an analysis unit that determines that a leak has occurred if the concentration data is greater than a predetermined multiple of an average of the concentration data over a predetermined time.
3. The system of claim 1, wherein the gas leak monitoring subsystem comprises a plurality of infrared light sensors and/or a plurality of quantum cascade laser sensors, and the spacing between any two adjacent infrared light sensors or quantum cascade laser sensors is the same.
4. The system of claim 1, wherein the modes of operation of the management platform include a first mode of operation and a second mode of operation, wherein the management platform enters the first mode of operation to predict a location of a leak that is likely to leak based on the concentration data if no leak is determined to occur, and wherein the management platform enters the second mode of operation to determine a location of a leak based on the concentration data if a leak is determined to occur.
5. The system of claim 4, wherein the sampling period of the first operating mode is a first sampling period, the sampling period of the first operating mode is a second sampling period, a ratio of the first sampling period to the second sampling period is greater than 100, and the sampling period is a period in which the management platform receives the concentration data.
6. The system of claim 1, wherein the leakage gas recovery subsystem comprises:
a gas collection device for collecting air mixed with the leakage gas;
and the purification and recovery device is connected with the gas collecting device and is used for treating the air collected by the gas collecting device to obtain the purified leakage gas.
7. The system of claim 6, wherein the gas collection device comprises a gas collection port that is an inlet for air mixed with the leaked gas to enter the gas collection device, and a movement mechanism for moving the gas collection port in a horizontal direction and/or a vertical direction.
8. The system of claim 6, wherein the purge recovery device comprises:
the processing unit is connected with the gas collecting device and used for removing impurities in the air collected by the gas collecting device;
and the cold trap unit is connected with the processing unit and used for cooling the leaked gas into a liquid state to obtain the purified leaked gas.
9. The system of claim 1, further comprising:
and the data transmission subsystem is in communication connection with the gas leakage monitoring subsystem, the management platform and the leaked gas recovery subsystem respectively, and is used for transmitting the concentration data acquired by the gas leakage monitoring subsystem to the management platform and transmitting the recovery instruction sent by the management platform to the leaked gas recovery subsystem.
10. The system of claim 9, wherein the data transmission subsystem has a wired transmission mode and a wireless transmission mode, the wireless transmission mode being a regular transmission mode, and the wired transmission mode being a standby transmission mode.
CN202110640157.0A 2021-06-08 2021-06-08 Leakage gas recovery system Pending CN113202725A (en)

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Application publication date: 20210803