CN214955287U

CN214955287U - SF6 leakage on-line monitoring device

Info

Publication number: CN214955287U
Application number: CN202120677500.4U
Authority: CN
Inventors: 伍宝林; 叶明章; 张世新; 徐志旺; 陈泽生
Original assignee: Zhuhai Haoyang Technology Co ltd
Current assignee: Zhuhai Haoyang Technology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-30
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a SF6 leaks on-line monitoring device, including backstage host computer, fan, SF gas concentration sensor, pencil, wireless temperature and humidity sensor, human infrared inductive sensor, display screen, siren, mainframe box and fan controller, the backstage host computer passes through the electric connection of pencil with the mainframe box, the backstage host computer adopts the computer, mainframe box top end fixed mounting has the siren, the display screen adopts the LED display screen. The utility model discloses structurally reasonable in design adopts multi-path relay and branch pencil, conveniently carries out the expansion of sensor quantity and fan quantity, uses convenient and fast, and the dismouting that detects the sensor is swift, nimble steel sheet collocation crimping structure, and is fixed convenient, and the practicality is very high.

Description

SF6 leakage on-line monitoring device

Technical Field

The utility model relates to a leakage monitoring field specifically is a SF6 leaks on-line monitoring device.

Background

The SF6 gas is an inert gas which is colorless, odorless, heavier than air in density, not easily mixed with air, and has no toxicity to human body. However, under the action of high-voltage arc or at high temperature, the SF6 gas is partially decomposed, and the decomposed product is often extremely toxic and even a trace amount of the decomposed product can cause people to be non-life. When the indoor switch using SF6 gas as insulating and arc-extinguishing medium leaks in use, the leaked SF6 gas and its decomposition products accumulate in the indoor lower space, causing local oxygen deficiency and toxicity, and posing serious danger to the life safety of the workers entering the room. Therefore, it has become very important to develop an online SF6 leakage monitoring system for industrial field application.

The existing leakage monitoring device is simple and crude in structure, poor in installation flexibility, incomplete in monitoring coverage and poor in safety, and meanwhile, during working, equipment is combined by a bushing, so that expansion is not easy, and use is inconvenient.

Therefore, the technical personnel in the field provide an online SF6 leakage monitoring device to solve the problems in the background art.

Disclosure of Invention

An object of the utility model is to provide a SF6 leaks on-line monitoring device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an SF6 leakage on-line monitoring device comprises a background host, a fan, an SF gas concentration sensor, a wire harness, a wireless temperature and humidity sensor, a human body infrared sensor, a display screen, an alarm, a host case and a fan controller, the background host is electrically connected with the mainframe box through a wiring harness and adopts a computer, the top end of the main case is fixedly provided with an alarm, the display screen adopts an LED display screen, the display screen is connected with the main case through a data line, the wireless temperature and humidity sensor and the human body infrared sensor are in data transmission with the mainframe box through the wireless module, the bottom end of the main case is fixedly provided with a wire harness which is electrically connected with the SF gas concentration sensor, the mainframe box embeds there is the fan controller, electric connection between fan controller and the fan, the siren adopts audible-visual annunciator.

As a further aspect of the present invention: SF gas concentration sensor includes end cover, vent, plug wire seat and sensor, the sensor outside cover is established and is installed the protecting crust, and the protecting crust tip has the end cover through bolt fixed mounting, and the end cover is inside to be seted up with the vent, sensor lower part fixed mounting has the plug wire seat, the end cover lower part seted up with plug wire seat complex opening, plug wire seat and pencil electric connection, the pencil adopts the RS-485 bus.

As a further aspect of the present invention: the wireless temperature and humidity sensor comprises an outer screw rod, a non-slip mat, a steel sheet, a sensing probe, a notch and an inserting sleeve, wherein the steel sheet is fixedly mounted at the upper end and the lower end of the sensing probe, the inserting sleeve is installed at the end part of the steel sheet in an inserting mode, the outer screw rod is installed on the left side of the inserting sleeve in a rotating mode through threads, the non-slip mat is installed on the steel sheet in an sleeving mode, the notches are formed in the side wall of the non-slip mat in an equidistant mode, and the sensing probe is electrically connected with the mainframe box.

As a further aspect of the present invention: fan controller includes assembly seat, relay module, fixed disk and wiring row, both ends fixed mounting has the assembly seat about the relay module, relay module bottom fixed mounting has the fixed disk, fixed disk and mainframe box inner wall fixed connection, relay module lateral wall fixed mounting has the wiring row, wiring row and fan electric connection.

As a further aspect of the present invention: the mainframe box is internally provided with a processing and calculating module and is electrically connected with an external power supply and a background host.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses structurally reasonable in design adopts multi-path relay and branch pencil, conveniently carries out the expansion of sensor quantity and fan quantity, uses convenient and fast, and the dismouting that detects the sensor is swift, nimble steel sheet collocation crimping structure, and is fixed convenient, and the practicality is very high.

Drawings

Fig. 1 is a component schematic diagram of an online SF6 leakage monitoring device.

Fig. 2 is a schematic structural diagram of an SF6 gas concentration sensor in an SF6 leakage online monitoring device.

Fig. 3 is a schematic structural diagram of a wireless temperature and humidity sensor in an SF6 leakage online monitoring device.

Fig. 4 is a schematic structural diagram of a fan relay in an SF6 leakage online monitoring device.

In the figure: the device comprises an assembly base 1, a relay module 2, a fixed disc 3, a wiring bar 4, a background host 5, a fan 6, an SF6 gas concentration sensor 7, a wiring harness 8, a wireless temperature and humidity sensor 9, a human body infrared sensor 10, a display screen 11, an alarm 12, a host case 13, an end cover 14, a vent 15, a wiring base 16, an outer screw rod 17, a sensor 18, an anti-skid pad 19, a steel sheet 20, a sensing probe 21, a notch 22 and a plug bush 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, an SF6 leakage online monitoring device includes a background host 5, a blower 6, an SF6 gas concentration sensor 7, a wire harness 8, a wireless temperature and humidity sensor 9, a human body infrared sensor 10, a display screen 11, an alarm 12, a host box 13 and a blower controller, where the background host 5 is electrically connected to the host box 13 through the wire harness, the background host 5 employs a computer, the alarm 12 is fixedly installed at the top end of the host box 13, the display screen 11 employs an LED display screen, the display screen 11 is connected to the host box 13 through a data line, the wireless temperature and humidity sensor 9 and the human body infrared sensor 10 perform data transmission with the host box 13 through a wireless module, the wire harness 8 is fixedly installed at the bottom end of the host box 13, and the wire harness 8 is electrically connected to the SF6 gas concentration sensor 7, the mainframe box 13 is internally provided with a fan controller, the fan controller is electrically connected with the fan 6, and the alarm 12 adopts an audible and visual alarm.

SF6 gas concentration sensor 7 includes end cover 14, vent 15, plug wire seat 16 and sensor 18, the protective housing is established to the cover in the 18 outside of sensor, and the protective housing tip has end cover 14 through bolt fixed mounting, and end cover 14 is inside seted up with

vent

15, 18 lower part fixed mounting of sensor has plug wire seat 16, the opening with plug wire seat 16 complex has been seted up to end cover 14 lower part,

plug wire seat

16 and 8 electric connection of pencil, 8 adoption RS-485 buses of pencil.

Wireless temperature and humidity sensor 9 includes outer screw rod 17, slipmat 19, steel sheet 20, sensing probe 21, notch 22 and plug bush 23, both ends fixed mounting has steel sheet 20 about sensing probe 21, and the plug bush 23 is installed in the grafting of 20 tip of steel sheet, and the outer screw rod 17 is installed through the screw thread soon in the plug bush 23 left side, the slipmat 19 is installed to steel sheet 20 outside cover establishment, and the notch 22 that the equidistance was arranged is seted up to slipmat 19 lateral wall, sensing probe 21 and mainframe box 13 electric connection.

Fan controller includes assembly seat 1, relay module 2, fixed disk 3 and wiring row 4, both ends fixed mounting has assembly seat 1 about

relay module

2, 2 bottom fixed mounting of relay module has fixed disk 3,

fixed disk

3 and 13 inner wall fixed connection of mainframe box, 2 lateral wall fixed mounting of relay module has wiring row 4, wiring row 4 and 6 electric connection of fan.

The mainframe box 13 is internally provided with a processing and calculating module, and the mainframe box 13 is electrically connected with an external power supply and the background host 5.

The utility model discloses a theory of operation is:

the utility model relates to a SF6 leaks on-line monitoring device mainly comprises four bibliographic categories: the system comprises a system host, an SF6 gas concentration sensor, a wireless temperature and humidity sensor, peripheral equipment and a remote monitoring system. The SF6 gas concentration sensor and the wireless temperature and humidity sensor are responsible for collecting chamber gas concentration data and temperature and humidity data, carrying out A/D conversion, transmitting the data to the host, and the host analyzes, compares and judges the transmitted data and carries out corresponding operation processing procedures. Peripheral equipment (including audible and visual alarm, human body infrared induction sensor, fan controller, etc.), a remote monitoring system (including terminal data processing module, driving software, upper computer, etc.), the monitoring system is selected by user, when in work, SF6 gas concentration or oxygen content in indoor environment changes, SF6 gas concentration sensor can capture the change, and convert the detected variable quantity data into digital signal, and transmit it to system host machine through RS-485 bus, on one hand, the system host machine makes judgment by operation analysis, storage and processing of collected data transmitted from collector, alarms and displays numerical value when SF6 concentration exceeds set alarm value (factory default value: 1000 PPM), and alarms and displays numerical value when O2 content is lower than set alarm value (default factory value: 18%), and controls related components to act, including alarm, starting and stopping the fan, speaking and the like.

The main functions are as follows:

SF6 gas concentration detection and display function:

each sensor continuously detects and reads and displays the concentration of SF6 at each monitoring point in the room by the host, and when the concentration of SF6 exceeds a set alarm value (factory default value is 1000 ppm), an alarm is given and a numerical value is displayed.

Oxygen concentration detection and display function:

the sensors continuously detect and the host computer reads and displays the oxygen concentration at each monitoring point in the chamber. When the concentration is lower than a set alarm value (18 percent of factory default value), alarming and displaying the value.

SF6 and oxygen concentration control functions:

and when the SF6 gas concentration exceeds the standard (1000 ppm) or the oxygen concentration is lower than the standard (18 percent), controlling the fan to start ventilation until the SF6 and the oxygen concentration are recovered to be normal.

Temperature, humidity detection and display function:

the temperature and humidity sensor is used for real-time detection, and the host computer is used for reading and displaying indoor temperature and humidity values.

Temperature control function

Indoor temperature setting can be made according to the actual situation.

The sensor communication status display function:

each sensor continuously detects and reads and displays the communication condition of each sensor in the GIS room by the host, and if communication faults occur, fault addresses are off-line and-line on an interface.

The function of timing ventilation according to time periods:

the system can set the fan to start and stop at regular time every day according to the time period so as to ensure that the switch room can ventilate as required every day.

SF6, the oxygen gas concentration exceeds the alarm set value and automatically starts and stops the fan ventilation function:

when the concentration of SF6 and oxygen in the GIS indoor environment exceeds the alarm set value, the fan is automatically started to ventilate until the concentration of SF6 and oxygen in the indoor environment returns to the normal value, and the fan automatically stops.

Forced ventilation function:

when the fan is in a stop state, the right fan icon is clicked, the fan can be started, and when the fan runs in a ventilation mode, the right fan icon is clicked, and the fan stops.

The voice prompt function:

when the host computer starts the language function, the system can prompt an alarm by voice when the specified condition is met, and prompts the operator to enter the room for attention.

Sound, light alarm function:

when the content of SF6 and oxygen in the GIS room environment exceeds the limit, a high-frequency alarm sound and a red lamp shine can be sent out.

Human body infrared induction function:

when the operator wants to enter the room, the infrared sensor acts, and the host computer sends out prompt voice.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An SF6 leakage online monitoring device comprises a background host (5), a fan (6), an SF6 gas concentration sensor (7), a wire harness (8), a wireless temperature and humidity sensor (9), a human body infrared induction sensor (10), a display screen (11), an alarm (12), a host case (13) and a fan controller, and is characterized in that the background host (5) is electrically connected with the host case (13) through the wire harness, the background host (5) adopts a computer, the alarm (12) is fixedly installed at the top end of the host case (13), the display screen (11) adopts an LED display screen, the display screen (11) is connected with the host case (13) through a data line, the wireless temperature and humidity sensor (9) and the human body infrared induction sensor (10) perform data transmission with the host case (13) through a wireless module, the wire harness (8) is fixedly installed at the bottom end of the host case (13), pencil (8) and SF6 gas concentration sensor (7) electric connection, built-in fan controller of mainframe box (13), electric connection between fan controller and fan (6), audible-visual annunciator is adopted in siren (12).

2. The SF6 leakage on-line monitoring device of claim 1, wherein the SF6 gas concentration sensor (7) includes end cover (14), vent (15), plug wire seat (16) and sensor (18), the protective shell is installed to the cover outside the sensor (18), end cover (14) is installed through bolt fixed mounting to the protective shell tip, end cover (14) is inside seted up with vent (15), sensor (18) lower part fixed mounting has plug wire seat (16), end cover (14) lower part seted up with plug wire seat (16) complex opening, plug wire seat (16) and pencil (8) electric connection, pencil (8) adopt RS-485 bus.

3. The SF6 leakage online monitoring device of claim 1, wherein the wireless temperature and humidity sensor (9) comprises an outer screw rod (17), an anti-slip pad (19), a steel sheet (20), a sensing probe (21), a notch (22) and an inserting sleeve (23), the upper end and the lower end of the sensing probe (21) are fixedly provided with the steel sheet (20), the end of the steel sheet (20) is inserted and installed with the inserting sleeve (23), the left side of the inserting sleeve (23) is screwed and installed with the outer screw rod (17) through a thread, the outer side of the steel sheet (20) is sleeved and installed with the anti-slip pad (19), the side wall of the anti-slip pad (19) is provided with the notches (22) which are arranged at equal intervals, and the sensing probe (21) is electrically connected with the mainframe box (13).

4. The SF6 leakage on-line monitoring device of claim 1, wherein the fan controller includes mount pad (1), relay module (2), fixed disk (3) and line bank (4), both ends fixed mounting has mount pad (1) about relay module (2), relay module (2) bottom fixed mounting has fixed disk (3), fixed disk (3) and mainframe box (13) inner wall fixed connection, relay module (2) lateral wall fixed mounting has line bank (4), line bank (4) and fan (6) electric connection.

5. The SF6 leakage on-line monitoring device of claim 1, wherein a processing and computing module is built in said main chassis (13), said main chassis (13) is electrically connected to an external power source and a background host (5).