CN213633167U

CN213633167U - SF6 laser type online leakage monitoring and alarming system

Info

Publication number: CN213633167U
Application number: CN202022772628.7U
Authority: CN
Inventors: 沈晓贤; 宋志平; 郑子涵
Original assignee: JIANGSU HNP ELECTRIC TECHNOLOGY CO LTD
Current assignee: JIANGSU HNP ELECTRIC TECHNOLOGY CO LTD
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-06
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses an SF6 laser type online leakage monitoring alarm system, which comprises a monitoring host, wherein a laser type SF6 leakage alarm analysis module, an SF6 leakage alarm sampling module and a fan controller are all arranged in a cabinet body fixedly arranged in a room to be monitored; the laser SF6 leakage alarm analysis module is connected with the SF6 leakage alarm sampling module through a communication mode and a gas transmission pipeline; after penetrating out of the cabinet body, a plurality of sampling pipelines on the SF6 leakage alarm sampling module extend to each gas detection point at the bottom of the equipment through a mounting bracket with a forward guiding function, wherein the mounting bracket is clamped on a channel steel of a base for supporting the equipment; the fan controller is connected with a large fan positioned in a room to be monitored; the alarm, the laser SF6 leakage alarm analysis module and the fan controller are all connected with a monitoring host installed on the outer wall surface through RS485 communication cables. The utility model discloses arrange rationally, the dismouting is swift, can guarantee operating personnel safety.

Description

SF6 laser type online leakage monitoring and alarming system

Technical Field

The utility model relates to a SF6 laser formula leaks monitoring alarm system on line, and more specifically says, relates to a SF6 laser formula leaks monitoring alarm system on line.

Background

SF6 is an important medium which acts as an arc extinguishing and insulating gas for enclosed medium and high voltage switches. However, during the switching operation, under the action of electric arc, corona, spark discharge, partial discharge, high temperature and other factors, SF6 gas is decomposed, and the decomposition thereof becomes corrosive electrolyte when meeting moisture, and some of the highly toxic decomposition products, such as SF4, S2F2, S2F10, SOF2, HF and SO2, can irritate skin and mucous membranes, and if the inhalation amount is large, cause dizziness, emphysema and even death. The equipment filled with SF6 gas is mostly installed in a room, the air circulation speed is relatively slow, if SF6 gas leaks, the SF6 gas is not easy to be dispersed in the room, and the SF6 gas is colorless and tasteless and is not easy to be detected after leaking. In addition, since the specific gravity of SF6 gas is higher than that of oxygen, the SF6 gas is often deposited in a lower layer space, and local oxygen deficiency is easily caused, so that people are suffocated. Therefore, according to the special regulation of the safety work regulations of the electrical industry in China, oxygen and SF6 detection alarm devices and necessary ventilation devices must be installed in relevant places.

Through search, a technical scheme for improving the problems is disclosed, for example, the Chinese patent number ZL2007200973158, the publication date of the invention is 2008, 8 and 6, and the invention and creation names are as follows: the SF6 gas online detection alarm system comprises a monitoring host, a laser type SF6 leakage alarm analysis module, an SF6 leakage alarm sampling module, a fan controller and an alarm, wherein the monitoring host is respectively connected with the fan controller, the alarm and the laser type SF6 leakage alarm analysis module through RS485 communication cables, and the fan controller is connected with a fan; SF6 leaks warning sampling module includes electromagnetic pump and many sampling pipe, and the electromagnetic pump is connected with many sampling pipe respectively, and laser formula SF6 leaks warning analysis module and is connected with SF6 leakage warning sampling module through communication mode and gas transmission pipeline. The application samples through the sampling pipeline, and the sampling pipeline tip extends to each measurement gas detection point of equipment and samples, and the direct detection check point, measurement is rapider, accurate, and sensitivity is high, but this application does not give SF6 gas on-line measuring alarm system at the concrete arrangement structure and the concrete notice on scene.

Disclosure of Invention

1. Technical problem to be solved by the utility model

An object of the utility model is to provide a laser formula SF6 online leakage monitoring alarm system, adopt the technical scheme of the utility model, simple structure, design benefit arranges rationally, and the dismouting is swift, can guarantee operating personnel safety.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses an SF6 laser formula online leakage monitoring alarm system, including monitoring host computer, laser formula SF6 leak alarm analysis module, SF6 leak alarm sampling module, fan controller and alarm, laser formula SF6 leak alarm analysis module, SF6 leak alarm sampling module and fan controller all install and set firmly in waiting to monitor indoor cabinet internal; the laser SF6 leakage alarm analysis module is connected with the SF6 leakage alarm sampling module through a communication mode and a gas transmission pipeline; after penetrating out of the cabinet body, a plurality of sampling pipelines on the SF6 leakage alarm sampling module extend to each gas detection point at the bottom of the equipment through a mounting bracket with a forward guiding function, wherein the mounting bracket is clamped on a channel steel for supporting a base of the equipment; the fan controller is connected with a large fan positioned in a room to be monitored, and a first shutter is arranged at the bottom of an outdoor wall outside a straight chamber in the room to be monitored; treat that monitor room middle and outer wall top all install the alarm, laser formula SF6 leak alarm analysis module and fan controller all link to each other with the monitoring host computer of installing on the outer wall face through RS485 communication cable.

Furthermore, the outside of the room to be monitored is provided with a warning line arranged along the outer wall of the room.

Furthermore, the mounting bracket comprises a clamp clamped on the channel steel, an upper roller and a lower roller which are oppositely arranged up and down, and a circular cavity for placing the sampling pipeline is formed between the upper roller and the lower roller; the upper roller is rotatably arranged on the upper mounting shaft, and the lower roller is rotatably arranged on the lower mounting shaft; two ends of the lower mounting shaft are fixedly arranged on the two vertical rods, two ends of the upper mounting shaft are arranged on the two vertical rods in a vertically sliding manner, and springs sleeved on the vertical rods are arranged between two ends of the upper mounting shaft and locking nuts in threaded connection with the top ends of the two vertical rods; the lower ends of the two vertical rods are fixedly arranged on the upper clamping plate of the clamp.

Furthermore, a second louver is installed on the periphery of the bottom of the cabinet body, a small fan is arranged in the cabinet body, and the small fan is connected with the fan controller.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a SF6 laser formula online leakage monitoring alarm system, its laser formula SF6 leaks alarm analysis module, SF6 and leaks alarm sampling module and fan controller integration in a cabinet, it is more reasonable to arrange, and cabinet body bottom all installs shutter two all around, the internal little fan that is provided with of cabinet, this little fan is connected with fan controller, first set up shutter two can guarantee the heat-sinking capability of the cabinet body, second shutter two cooperates the setting of little fan to avoid the SF6 gas that leaks out to deposit in the cabinet body;

(2) the SF6 laser type online leakage monitoring and alarming system of the utility model is characterized in that a plurality of sampling pipelines on an SF6 leakage alarming and sampling module extend out of a cabinet body and then extend to each gas detection point at the bottom of the device through a mounting bracket with a forward guiding function, wherein the mounting bracket is clamped on the channel steel for supporting the equipment, the mounting bracket is conveniently disassembled and assembled on the channel steel, the sampling pipeline is fixed by the mounting bracket, meanwhile, the forward guiding function of the mounting bracket is utilized to ensure that the sampling pipeline can smoothly advance to the gas detection point at the bottom of the device, the mounting bracket has simple structure and convenient connection, the sampling pipeline is clamped between the upper roller and the lower roller under the action of the spring, the sampling pipeline is pushed forwards, the sampling pipeline can smoothly move forwards under the mutual rotation action of the upper roller and the lower roller, and can accurately move forwards to the gas detection point;

(3) the SF6 laser type online leakage monitoring and alarming system of the utility model is characterized in that a fan controller is connected with a large fan positioned in a room to be monitored, a first shutter is arranged at the bottom of an outdoor wall outside a straight chamber in the room to be monitored, when SF6 gas in the room to be monitored leaks to a certain degree, the large fan is started through the fan controller, so that the indoor air with SF6 gas can be blown out from the shutter to the outdoor quickly for ventilation, and a warning line arranged along the outer wall of the room to be monitored is arranged outside the room, a safety zone is marked off by the warning line, the amount of SF6 gas sucked in can be reduced as much as possible when ventilation work is started and the worker passes the louver, in addition, the top of the outdoor wall in the room to be monitored is provided with an alarm, and the alarm is also arranged to remind outdoor personnel to pay attention to ventilation.

Drawings

Fig. 1 is a schematic structural diagram of an SF6 laser type online leakage monitoring alarm system of the present invention;

fig. 2 is a mounting structure in a cabinet body of an SF6 laser type online leakage monitoring and alarming system of the present invention;

fig. 3 is a schematic structural diagram of a mounting bracket in the SF6 laser type online leakage monitoring and warning system of the present invention.

The reference numerals in the schematic drawings illustrate: 1. monitoring the host; 2. a laser SF6 leakage alarm analysis module; 3. SF6 leakage alarm sampling module; 3-1, sampling pipeline; 4. a fan controller; 5. an alarm; 6. a room to be monitored; 7. a cabinet body; 8. channel steel; 9. a first shutter; 10. a warning line; 11-1, an upper roller; 11-2, a lower roller; 11-3, installing a shaft; 11-4, lower mounting shaft; 11-5, vertical rods; 11-6, a spring; 11-7, an upper clamping plate; 12. a small fan.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

With reference to fig. 1, the SF6 laser online leakage monitoring and alarming system of the present embodiment includes a monitoring host 1, a laser SF6 leakage alarm analysis module 2, an SF6 leakage alarm sampling module 3, a fan controller 4 and an alarm 5, where the laser SF6 leakage alarm analysis module 2, the SF6 leakage alarm sampling module 3 and the fan controller 4 are all installed in a cabinet 7 (shown in fig. 2) fixed in a room 6 to be monitored, and the arrangement is more reasonable; the periphery of the bottom of the cabinet body 7 is provided with a second louver, a small fan 12 is arranged in the cabinet body 7, the small fan 12 is connected with the fan controller 4, the second louver is arranged to ensure the heat dissipation capability of the cabinet body, and the second louver is matched with the small fan to prevent leaked SF6 gas from being deposited in the cabinet body;

then, the laser SF6 leakage alarm analysis module 2 is connected with the SF6 leakage alarm sampling module 3 through a communication mode and a gas transmission pipeline; after penetrating out of the cabinet body 7, a plurality of sampling pipelines 3-1 on the SF6 leakage alarm sampling module 3 extend to each gas detection point at the bottom of the equipment through a mounting bracket with a forward guiding function, wherein the mounting bracket is clamped on a channel steel 8 for supporting a base of the equipment; the mounting bracket is convenient to mount and dismount on the channel steel, the sampling pipeline is fixed through the mounting bracket, and meanwhile the forward guiding function of the mounting bracket is utilized to enable the sampling pipeline to smoothly advance to a gas detection point at the bottom of the device; with specific reference to fig. 3: the mounting bracket comprises a clamp for clamping the channel steel, and an upper roller 11-1 and a lower roller 11-2 which are arranged oppositely up and down, the clamp is in the prior art, and only needs to be clamped on the channel steel, and the specific structure is not described herein; a circular cavity for placing the sampling pipeline 3-1 is formed between the upper roller 11-1 and the lower roller 11-2; the upper roller 11-1 is rotatably arranged on the upper mounting shaft 11-3, and the lower roller 11-2 is rotatably arranged on the lower mounting shaft 11-4; two ends of the lower mounting shaft 11-4 are fixedly arranged on the two vertical rods 11-5, two ends of the upper mounting shaft 11-3 are slidably arranged on the two vertical rods 11-5 up and down, and springs 11-6 sleeved on the vertical rods are arranged between two ends of the upper mounting shaft 11-3 and locking nuts in threaded connection with the top ends of the two vertical rods 11-5; the lower ends of the two vertical rods 11-5 are fixedly arranged on the upper clamping plate 11-7 of the clamp, the mounting bracket is simple in structure and convenient to connect, the sampling pipeline is clamped between the upper roller and the lower roller under the action of the spring and is pushed forwards, so that the sampling pipeline smoothly moves forwards under the action of mutual rotation of the upper roller and the lower roller and can accurately move forwards to a gas detection point;

subsequently, the fan controller 4 is connected with a large fan positioned outside the room 6 to be monitored, a first shutter 9 is arranged at the bottom of the outdoor wall outside the straight chamber in the room 6 to be monitored, and the large fan is started through the fan controller after SF6 gas in the room to be monitored leaks to a certain degree, so that indoor air with SF6 gas can be blown out of the room from the first shutter to perform ventilation work; the alarm 5, the laser SF6 leakage alarm analysis module 2 and the fan controller 4 are all connected with the monitoring host 1 arranged on the outer wall surface through RS485 communication cables.

In order to remind outdoor personnel of paying attention to ventilation, alarms 5 are mounted on the tops of the outdoor walls in the room 6 to be monitored; the outside of the room to be monitored 6 is provided with a guard line 10 disposed along the outer wall of the room, with which a safety zone is defined, and the amount of SF6 gas sucked in can be reduced as much as possible when ventilation work is started and workers pass through the louvers.

The utility model discloses an SF6 laser formula online leakage monitoring alarm system, simple structure, design benefit arranges rationally, and the dismouting is swift, can guarantee operating personnel safety.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a SF6 laser formula online leakage monitoring alarm system, includes monitoring host computer (1), laser formula SF6 leakage alarm analysis module (2), SF6 leakage alarm sampling module (3), fan controller (4) and alarm (5), its characterized in that: the laser SF6 leakage alarm analysis module (2), the SF6 leakage alarm sampling module (3) and the fan controller (4) are all arranged in a cabinet body (7) fixedly arranged in a room to be monitored (6); the laser SF6 leakage alarm analysis module (2) is connected with the SF6 leakage alarm sampling module (3) through a communication mode and a gas transmission pipeline; a plurality of sampling pipelines (3-1) on the SF6 leakage alarm sampling module (3) penetrate out of the cabinet body (7) and extend to each gas detection point at the bottom of the equipment through a mounting bracket with a forward guiding function, wherein the mounting bracket is clamped on a channel steel (8) for supporting a base of the equipment; the fan controller (4) is connected with a large fan positioned in the room (6) to be monitored, and a first shutter (9) is arranged at the bottom of an outdoor wall outside the straight-face room in the room (6) to be monitored; treat monitor room (6) middle and outer wall top and all install alarm (5), laser formula SF6 leak alarm analysis module (2) and fan controller (4) all link to each other with monitoring host computer (1) of installing on the outer wall face through RS485 communication cable.

2. An SF6 laser type on-line leakage monitoring alarm system as claimed in claim 1, wherein: and a warning line (10) arranged along the outdoor wall of the room (6) to be monitored is arranged outdoors.

3. An SF6 laser type on-line leakage monitoring alarm system as claimed in claim 2, wherein: the mounting bracket comprises a clamp used for being clamped on the channel steel (8), an upper roller (11-1) and a lower roller (11-2) which are arranged oppositely up and down, and a circular cavity used for placing a sampling pipeline is formed between the upper roller (11-1) and the lower roller (11-2); the upper roller (11-1) is rotatably arranged on the upper mounting shaft (11-3), and the lower roller (11-2) is rotatably arranged on the lower mounting shaft (11-4); two ends of the lower mounting shaft (11-4) are fixedly arranged on the two vertical rods (11-5), two ends of the upper mounting shaft (11-3) are slidably arranged on the two vertical rods (11-5) up and down, and springs (11-6) sleeved on the vertical rods are arranged between two ends of the upper mounting shaft (11-3) and locking nuts in threaded connection with the top ends of the two vertical rods (11-5); the lower ends of the two vertical rods (11-5) are fixedly arranged on the upper clamping plate (11-7) of the clamp.

4. An SF6 laser type on-line leakage monitoring alarm system as claimed in claim 3, wherein: the bottom of the cabinet body (7) is provided with a second louver all around, a small fan (12) is arranged in the cabinet body (7), and the small fan (12) is connected with the fan controller (4).