Multifunctional wireless leak detection system

Abstract

The utility model relates to a multifunctional wireless leak detection system comprising a hand-held part and a console part which are communicated in a wireless mode. The handheld part is an independent handheld machine, the outer part of the console part is a box body, the inner part of the console part comprises a control device and a cavity for placing the handheld machine, the handheld part and the console part are separated during use, and the handheld part is placed in the cavity when the console part is not used. According to the split type measuring handset, the detection sensor does not need to pass through an overlong sampling guide pipe and is closer to sample gas, the sampling flow is smaller, and the real-time performance and the accuracy of sample gas concentration and leakage rate data are ensured; meanwhile, due to the portable design, convenience and safety during operation can be effectively guaranteed. According to the utility model, multi-mode measurement is adopted, the best measurement result is obtained, the acousto-optic and vibration alarm functions are provided, the measurement result is displayed on the handset and the console through wireless transmission, and the measurement result can be printed and filed through a built-in printer or transmitted to a computer for real-time sampling and storage.

Description

TECHNICAL FIELD

[0001] The utility model relates to a leak detection system, more particularly to a multifunctional wireless leak detection system which is convenient to use and can effectively ensure safety during operation. BACKGROUND

[0002] Sulfur hexafluoride (SF6) is a perfect gaseous medium for high voltage power equipment, which has been widely used in circuit breakers, GIS, transformers, mutual inductors, linear accelerators, coaxial cables, waveguides, X-ray equipment and capacitors. SF6 insulation gas not only has high dielectric strength, but also has good physicochemical properties, which is the most ideal insulation and arc-extinguishing medium so far.

[0003] Because SF6 is a non-toxic, colorless and odorless gas, it is not easy to be detected. Because it is heavier than air, it is easy to accumulate at low places, and it can displace oxygen in air and cause suffocation. The good sealing of GIS is crucial, and strengthening leak detection during operation is one of the important measures to prevent accidents.

[0004] Common leakage points are usually the welds of high-voltage switches, flange joints, gas filling nozzles, pressure gauges, and sand holes on density relay steel pipes. These locations are usually located at high places or difficult-to-access locations of high-voltage switches. The traditional SF6 leak detector has corresponding modules, which is large in size, difficult to carry and place in high places or small spaces, or has a long gas pipe and circuit connected to the measurement head, which requires high physical strength of the leak detection operator. At the same time, some devices place the sensor in the main machine, and the sample gas needs to pass through a relatively long gas path of generally 2-3 meters first, which makes the measurement response time longer, making it difficult to achieve real-time feedback of real data, leading to missed detection and false detection. SUMMARY

[0005] In view of the above problems, the main purpose of the utility model is to provide a multifunctional wireless leak detection system which is convenient to use and can effectively ensure safety during operation.

[0006] The utility model solves the above technical problem through the following scheme: a multifunctional wireless leak detection system, the multifunctional wireless leak detection system comprises: a handheld part and a console part, the handheld part and the console part communicate through a wireless mode;

[0007] The handheld part is a separate handset, the console part is a box body, and the inside includes a control device and a cavity for placing the handset. In use, the handheld part and the console part are separated, and in non-use, the handheld part is placed in the cavity.

[0008] In the embodiment of the utility model, the handheld part includes a handheld part controller, a handheld part gas detection module, a handheld part alarm, a handheld part display, a handheld part wireless module, a handheld part power supply, a handheld part control button, a digital interface module and a level gauge automatic standby sleep device.

[0009] In the embodiment of the utility model, the handheld part gas detection module includes a flexible probe, a filter, a gas pump, a flow meter, a buffer, a pressure sensor and a gas sensor.

[0010] In the embodiment of the utility model, the handheld part power supply adopts a rechargeable lithium battery.

[0011] In the embodiment of the utility model, the handheld part alarm includes sound, light and vibration alarms.

[0012] In the embodiment of the utility model, the console part includes a console part controller, a console part alarm, a console part display, a console part wireless module, a console internal charging interface, a console part external charging interface, a start button, a DB9 data interface, a USB recording download interface, a charging indicator light and a printer.

[0013] In the embodiment of the utility model, the console part power supply adopts a rechargeable lithium battery.

[0014] In the embodiment of the utility model, the console part alarm includes sound, light and vibration alarms.

[0015] In the embodiment of the utility model, the handheld part and the console part are both provided with a data uploading interface; the handheld part is charged through a power adapter or through a console built-in battery.

[0016] In the embodiment of the utility model, the handheld part and the console part are both provided with a data uploading interface; the handheld part is charged through a power adapter or through a console built-in battery.

[0017] The utility model discloses a positive progress effect lies in: the utility model provides multi -functional wireless leak detection system and common similar technology compare, has following merit: the utility model split type measuring system installs into handset part, and increases temperature compensation, pressure compensation, constant small flow control to gas detection, operation, display system, thereby reach detection response more fast, detect more accurately, sensitivity is higher, use more portable; The handset part is provided with a level sensor, and the handset part automatically hibernates when being placed without operation, and the automatic wake -up function is used when handheld, which solves the use safety of the handset part and saves power.

[0018] The handset part is connected with the main control console through a wireless mode, so that the detection part is separated, the detection part is lightened and miniaturized, is closer to the leakage source, and the problems that the detection equipment of the traditional detection instrument is difficult to place under some working conditions, the response speed is slow, and the detection work is difficult to carry out are solved. The safety, efficiency and accuracy during operation are effectively ensured. The utility model adopts multi-mode measurement and is divided into concentration detection, leakage rate detection, qualitative detection and quantitative detection. The handset part displays the measurement results, and sends the data to the control console through a wireless transmission mode. The measurement data is also displayed on the controller display screen. The two have sound, light and vibration alarm functions. The control console part can print the detection data through the built-in printer, download the data record through the USB data disk, and connect the computer to read the data. The handset part can connect the computer through the type C interface to obtain the detection data. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of multi -functional wireless leak detection system of the utility model.

[0020] Figure 2 It is the internal control relation schematic diagram of the utility model.

[0021] Figure 3 It is the internal control relation schematic diagram of the gas detection module in the handset part of the utility model.

[0022] Figure 4 It is the real object drawing (handheld machine is put into control console box body) of the utility model.

[0023] The following is the name corresponding to the mark in the utility model:

[0024] Handheld part 1, handheld part controller 101, handheld part alarm 102, handheld part display 103, handheld part wireless module 104, handheld part power supply 105, handheld part control button 106, digital interface module 107, flow control module 108, pressure compensation module 109, constant temperature module 110, level instrument automatic standby hibernation device 111, handheld machine part gas detection module 112.

[0025] Flexible probe 1121, filter 1122, air pump 1123, flow meter 1124, buffer 1125, pressure sensor 1126, gas sensor 1127;

[0026] Console part 2, console part controller 201, console part alarm 202, console part display 203, console part wireless module 204, console part power supply 205, start button 206, DB9 interface 207, external power interface 208, charging indicator 209, printer 210, data saving module 211, charging port 212, USB interface 213, type C interface 214. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present application are described below in detail with reference to the drawings, so as to illustrate the technical scheme of the present application.

[0028] Figure 1 The overall structure schematic diagram of the multifunctional wireless leak detection system provided by the present application, Figure 2 The internal control relationship schematic diagram of the present application, Figure 3 The internal control relationship schematic diagram of the gas detection module in the handheld machine part of the present application, Figure 4 The actual object diagram of the present application (the handheld machine is placed in the console box).

[0029] As Figures 1-4 shown: the multifunctional wireless leak detection system provided by the present application, comprising: handheld part 1 and console part 2, the handheld part and the console part communicate through wireless mode; the handheld part is an independent handheld machine, the console part is a box in external, and the internal includes control device and cavity for placing handheld machine, in use, the handheld part and the console part are separated, and in non-use, the handheld part is placed in the cavity.

[0030] The handheld part includes handheld part controller 101, handheld machine part gas detection module 112, handheld part alarm 102, handheld part display 103, handheld part wireless module 104, handheld part power supply 105, handheld part control button 106, digital interface module 107, and automatic standby sleep device 111 of level meter; the handheld machine part gas detection module 112, the handheld part alarm 102, the handheld part display 103, the handheld part wireless module 104, the handheld part power supply 105, the handheld part control button 106, the digital interface module 107 and the automatic standby sleep device 111 of level meter are all connected to the handheld part controller 101.

[0031] The handheld machine part gas detection module 112 in the utility model includes flexible probe 1121, filter 1122, air pump 1123, flowmeter 1124, buffer 1125, pressure sensor 1126, gas sensor 1127, filter 1122 is located between flexible probe 1121 and gas sensor 1127, buffer is located between pressure sensor 1126 and air pump 1123, pressure sensor 1126, gas sensor 1127, air pump 1123, flowmeter 1124 are all connected on the controller.

[0032] The flowmeter 1124 in the utility model feeds back flow signal to the controller, and the controller adjusts air pump power, and the gas sensor 1127 and the pressure sensor 1126 output signal to the controller, and the controller carries out signal pressure compensation, and the filter 1122 filters dust particle, and the buffer 1125 makes flow stable and does not fluctuate.

[0033] In the utility model, in order to ensure that each component of the handheld machine is not affected by ambient temperature, a constant temperature module 110 can be further arranged in the interior of the handheld machine, and each component is kept to work under constant temperature conditions.

[0034] In addition, a flow control module 108 and a pressure compensation module 109 can be further arranged in the interior of the handheld machine (see Figure 2 ).

[0035] In a specific embodiment, the power supply of the handheld part 1 in the utility model can generally adopt a rechargeable lithium battery, and the handheld part alarm in the utility model includes sound, light and vibration alarm, and other alarm modes can be further arranged according to specific requirements.

[0036] The handheld part and the console part in the utility model are both provided with a charging port.

[0037] The console part 2 in the utility model is internally provided with a large-capacity lithium battery, can be charged in an external alternating current mode, and has a fuse for protection.

[0038] The console part alarm 202 in the utility model includes sound, light and vibration alarm, and other alarm modes can be further arranged according to specific requirements.

[0039] The handheld part and the console part are both provided with a data interface (the data interface of the console part 2 is a USB interface 213 indicated at and a DB9 interface at 207, and the data interface of the handheld part is a type C interface, Figure 3 indicated at 214). Figure 3

[0040] The automatic standby hibernation device 111 of the level gauge is started, and if it is not used, an automatic hibernation mode is started, and an automatic wake-up mode is started after being picked up. ​

[0041] In order to better protect the power supply, the handheld part and the console part are equipped with power protection control managers.

[0042] The controller in the utility model collects sample gas into the chamber through automatic flow control, adopts the gas sensor module of non-dispersive infrared principle (NDIR principle), and accurately measures the SF6 concentration in the chamber under constant temperature, pressure compensation and stable small flow, the display module indicates the measurement result on the handset display screen in ppmv (parts per million by volume) or cc / s (milliliter per second), g / y (gram per year), and simultaneously sets off sound and light vibration alarms according to the user, and the wireless transmission module transmits the result to the console, the console simultaneously displays the data in the form of a chart after receiving the data, and also provides sound and light vibration alarms in real time, and the controller in the console controls the printing module to print and save data.

[0043] The utility model is equipped with "search mode", under "search mode", the highest sulfur hexafluoride concentration is searched to locate the leakage point, the device is also equipped with "measurement mode", under "measurement mode", the leakage concentration and leakage rate can be accurately measured, the device is equipped with sound and light and vibration alarm functions, and can provide multifunctional warning for the user according to the user setting, is equipped with printing function, can print and file the measurement result after editing in real time, and is convenient for management, is equipped with data interface, can be transmitted to the computer through the memory for later editing and electronic management, the power supply circuit adopts rechargeable battery power supply, and the power supply circuit is also equipped with charging control circuit, carries out charging management to the battery, and does not need external power supply when using.

[0044] The principle of the system is that the infrared intensity of the measurement channel sensor decreases exponentially, and this relationship is called the Beer-Lambert law:

[0045] I=I0e -klx

[0046] Wherein:

[0047] I represents the outgoing light intensity.

[0048] I0 represents the incident light intensity.

[0049] K represents the absorption coefficient of the specific gas and filter combination.

[0050] L represents the equivalent optical path length between the light source and the detector.

[0051] The corresponding electrical signal of the concentration can be obtained.

[0052] The utility model discloses convenient to use, has solved the sulfur hexafluoride on -the -spot leak detection problem with control platform, made up the traditional detection instrument operating mode under difficult to settle and spread detection work, can effectively guarantee the security of operation, has popularization and promotion value.

[0053] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model. These changes and improvements all fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional wireless leak detection system characterized by: The multifunctional wireless leak detection system comprises a handheld part and a console part, and the handheld part and the console part communicate wirelessly. The handheld part is a separate handset, and the console part has a box body and a cavity for placing the handset. The handheld part comprises a handheld part controller, a handset part gas detection module, a handheld part alarm, a handheld part display, a handheld part wireless module, a handheld part power supply, a handheld part control button, a digital interface module and a level automatic standby sleep device.

2. The multi-functional wireless leak detection system of claim 1, wherein: The handset part gas detection module, the handheld part alarm, the handheld part display, the handheld part wireless module, the handheld part power supply, the handheld part control button, the digital interface module and the level automatic standby sleep device are connected to the handheld part controller.

3. The multi-functional wireless leak detection system of claim 1 or 2, wherein: The handset part gas detection module comprises a flexible probe, a filter, a gas pump, a flow meter, a buffer, a pressure sensor and a gas sensor.

4. The multi-functional wireless leak detection system of claim 1 or 2, wherein: The filter is located between the flexible probe and the gas sensor, the buffer is located between the pressure sensor and the gas pump, and the pressure sensor, the gas sensor, the gas pump and the flow meter are connected to the controller.

5. The multi-functional wireless leak detection system of claim 1, wherein: The handheld part power supply adopts a rechargeable lithium battery.

6. The multi-functional wireless leak detection system of claim 5, wherein: The handheld part alarm comprises sound, light and vibration alarms.

7. The multi-functional wireless leak detection system of claim 5, wherein: The console part comprises a console part controller, a console part alarm, a console part display, a console part wireless module, a console internal charging interface, a console part external charging interface, a start button, a DB9 data interface, a USB recording download interface, a charging indicator light and a printer.

8. The multi-functional wireless leak detection system according to one of claims 1 to 2, characterized in that: The console part power supply adopts a rechargeable lithium battery.

9. The multi-functional wireless leak detection system according to one of claims 1 to 2, wherein: The console part alarm comprises sound, light and vibration alarms. Both the handheld part and the console part are provided with a data uploading interface. The handheld part is charged through a power adapter or a console built-in battery. Both the handheld part and the console part are equipped with a power protection control manager.

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