CN212966442U - SF6Gas leakage monitoring and alarming system - Google Patents
SF6Gas leakage monitoring and alarming system Download PDFInfo
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- CN212966442U CN212966442U CN202021267698.0U CN202021267698U CN212966442U CN 212966442 U CN212966442 U CN 212966442U CN 202021267698 U CN202021267698 U CN 202021267698U CN 212966442 U CN212966442 U CN 212966442U
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Abstract
The utility model discloses a SF6The gas leakage monitoring alarm system comprises a plurality of acquisition devices arranged in a transformer room, a fan arranged at the vent of the transformer room, an alarm arranged outside the transformer room and a monitoring host, wherein the output end of the acquisition devices is connected with the input end of the monitoring host through an RS485 interface, and the output end of the monitoring host is connected with the input end of the monitoring hostThe output end is respectively connected with the input ends of the fan and the alarm; the acquisition device comprises a measurement air chamber arranged inside the shell, an air inlet and an air outlet are arranged at two ends of the measurement air chamber, an infrared light source is arranged on the inner wall of the shell at the side of the air outlet, a detector is arranged at the other end of the shell, and the output end of the detector is connected with the input end of the monitoring host; and an optical filter is arranged between the measurement air chamber and the detector. The utility model discloses a SF in a plurality of monitoring point pairs transformer room6Can carry out all-around on-line monitoring on the concentration of the sulfur-containing compound, and can be carried out in SF6The alarm is given at the initial leakage stage, and the safety of the working environment of the working personnel is effectively ensured.
Description
Technical Field
The utility model relates to an SF6The technical field of gas detection, in particular to SF6Gas leakage monitoring alarm system.
Background
SF6The combined electrical apparatus, which is called sulfur hexafluoride gas insulated metal totally-enclosed combined electrical apparatus (GIS for short), integrates the circuit breaker, the current transformer, the voltage transformer, the grounding isolating switch, the isolating switch and other equipment into a whole. GIS is usually used in a transformer substation, the GIS occupies a small area, if explosion happens in a limited area, the safety of most equipment in the transformer substation is influenced, and SF in the GIS6Gas will also leak into the air and the leaked SF6The gas drifts in the transformer room, and can influence the life safety of staff who gets into in the transformer room.
SF in present transformer room6When gas leaks, workers cannot know the gas in the early stage and can only carry out on-site control on SF in the transformer room6The concentration of the gas is detected on line, if the concentration is detected, SF6SF that has leaked out of the substation6When the concentration is too high, when the staff gets into the transformer room and detects, can influence staff's life safety.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved in the utility model is to provide a SF6Gas leakage monitoring alarm system for SF in transformer room6The gas is monitored on line, and the leaked gas is prevented from harming the life safety of people.
In order to solve the technical problem, the utility model adopts the following technical proposal.
SF6The gas leakage monitoring and alarming system comprises a plurality of gas leakage monitoring and alarming devices arranged in a transformer room and used for detecting SF in the transformer room6The monitoring system comprises a concentration acquisition device, a fan arranged at a ventilation opening of a transformer room and used for accelerating ventilation, an alarm arranged outside the transformer room and used for giving an alarm, and a monitoring host computer used for controlling the action of the fan according to information acquired by the acquisition device, wherein the output end of the acquisition device is connected with the input end of the monitoring host computer through an RS485 interface, and the output end of the monitoring host computer is respectively connected with the input ends of the fan and the alarm; the collecting device comprises a measuring air chamber which is arranged in the shell and used for measuring the concentration of gas, an air inlet and an air outlet are arranged at two ends of the measuring air chamber, an infrared light source used for emitting infrared spectrum is arranged on the inner wall of the shell positioned at the air outlet side, a detector used for detecting the concentration of the gas is arranged at the other end of the shell, and the output end of the detector is connected with the input end of the monitoring host; and an optical filter for filtering light is arranged between the measurement gas chamber and the detector.
SF mentioned above6The gas leakage monitoring and alarming system is characterized in that a light source driver for driving the infrared light source is arranged on the outer side of the shell, and the output end of the light source driver is connected with the power input end of the infrared light source.
SF mentioned above6And the light source drive is pulse voltage drive.
SF mentioned above6The gas leakage monitoring and alarming system is characterized in that a spherical reflecting surface facing a measuring gas chamber is arranged on the inner wall of the shell positioned on one side of the infrared light source.
SF mentioned above6The gas leakage monitoring and alarming system is characterized in that the shell is an insulating shell.
SF mentioned above6The gas leakage monitoring alarm system also comprises a remote monitoring alarm systemThe upper computer communicates with the monitoring host through a TCP/IP port.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses a SF in a plurality of monitoring point pairs transformer room6Can carry out all-around on-line monitoring on the concentration of the sulfur-containing compound, and can be carried out in SF6The early stage of leakage is reported to the police, in time notifies the staff to handle, has effectually guaranteed staff operational environment's security, has improved SF6Accuracy of gas detection.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic structural view of the collecting device of the present invention;
wherein: 1. the device comprises a shell, 2, a measuring gas chamber, 3, a gas inlet, 4, a gas outlet, 5, an infrared light source, 6, a light source driver, 7, a spherical reflecting surface, 8, a light filter and 9, a detector.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
SF6The gas leakage monitoring and alarming system is shown in a structural block diagram in figure 1 and comprises a collecting device, a monitoring host, a fan, an alarm and an upper computer. The collecting device is arranged in the transformer room and is used for collecting SF in the transformer room6The concentration of (c); the monitoring host is used for sending out a control instruction according to the concentration information acquired by the acquisition device; the fan is arranged at the vent of the transformer room and used for accelerating ventilation; the alarm is arranged outside the transformer room and used for giving an alarm; the host computer is used for carrying out remote monitoring. The output end of the acquisition device is connected to the input end of the monitoring host through an RS484 port, the output end of the monitoring host is respectively connected to the input ends of the fan and the alarm, and the monitoring host is communicated with the upper computer through a TCP/IP port.
The acquisition devices are arranged in a plurality of acquisition points in the transformer room respectively, and the structural schematic diagram of the acquisition devices is shown in figure 2 and comprises a shell 1, a measurement air chamber 2, an infrared light source 5 and a detector 9.
Measure the inside of air chamber 2 setting at shell 1, the both ends of measuring air chamber 2 are provided with air inlet 3 and gas outlet 4, and air inlet 3 and gas outlet 4 lie in same one side of measuring air chamber 2, and one end admits air, and one end is gone out, and gaseous detects in measuring air chamber 2. An infrared light source 5 is arranged on the inner wall of the shell 1 at the side of the air outlet 4 and is used for emitting infrared spectrum, and a detector 9 is arranged on the inner wall at the other side of the shell 1 and is used for measuring SF in the air chamber 26Is detected. The output end of the detector 9 is connected with the input end of the monitoring host.
The outer wall of the shell 1 is provided with a light source driver 6 for driving the infrared light source to emit infrared spectrum, and the output end of the light source driver 6 is connected with the power input end of the infrared light source. The light source drive 6 adopts pulse voltage drive to ensure that the infrared light source 5 has longer service life. Due to SF6The gas has an absorption characteristic for infrared spectroscopy, and this characteristic is used to measure the concentration of the gas.
An optical filter 8 is arranged between the detector 9 and the measuring gas chamber 2 and is used for filtering light. The infrared light source emits infrared spectrum to the measuring air chamber when SF exists6SF in air in case of gas leakage6Gas absorbs infrared spectrum back light source to make infrared light source generate energy change, after filter, detector determines SF according to infrared light source energy change6And the gas leakage concentration is large and small, and the detected concentration is sent to a monitoring host for processing.
The inner wall of the shell 1 positioned on one side of the infrared light source 5 is provided with the spherical reflecting surface 7, and the spherical reflecting surface 7 faces the measuring air chamber 2 and is used for enabling most light rays emitted by the infrared light source 5 to irradiate towards the direction of the detector, so that the stability and the accuracy of detection are improved.
The shell 1 is made of insulating materials, and when the shell is in contact with gas to be detected to detect, the insulating environment of high-voltage equipment cannot be damaged.
The utility model discloses carry out SF to the transformer room6When leakage monitoring is carried out, the acquisition devices are respectively arranged at monitoring points in the transformer room and connected to the monitoring host through RS485 ports, and the detector sends out the detection resultGive the monitoring host computer and handle, when detecting gas leakage, the monitoring host computer drive fan rotates, the circulation of air with higher speed to control the alarm and send the police dispatch newspaper, warn from leaking the initial stage, remind the staff to rationally arrange the repair time, reduce the power off time out of planning. The monitoring host sends the detection result to the upper computer through the TCP/IP port, and a worker can acquire the state of gas in the transformer room through the upper computer and can set operation parameters through the upper computer.
Claims (6)
1.SF6Gas leakage monitoring alarm system, its characterized in that: comprises a plurality of detection units arranged in the transformer room for detecting SF in the transformer room6The monitoring system comprises a concentration acquisition device, a fan arranged at a ventilation opening of a transformer room and used for accelerating ventilation, an alarm arranged outside the transformer room and used for giving an alarm, and a monitoring host computer used for controlling the action of the fan according to information acquired by the acquisition device, wherein the output end of the acquisition device is connected with the input end of the monitoring host computer through an RS485 interface, and the output end of the monitoring host computer is respectively connected with the input ends of the fan and the alarm; the collecting device comprises a measuring gas chamber (2) which is arranged in a shell (1) and used for measuring gas concentration, a gas inlet (3) and a gas outlet (4) are arranged at two ends of the measuring gas chamber (2), an infrared light source (5) used for emitting infrared spectrum is arranged on the inner wall of the shell (1) and located on the side of the gas outlet (4), a detector (9) used for detecting gas concentration is arranged at the other end of the shell (1), and the output end of the detector is connected with the input end of a monitoring host; an optical filter (8) for filtering light is arranged between the measurement air chamber (2) and the detector (9).
2. SF according to claim 16Gas leakage monitoring alarm system, its characterized in that: the outer side of the shell (1) is provided with a light source driver (6) for driving the infrared light source (5), and the output end of the light source driver is connected with the power input end of the infrared light source.
3. SF according to claim 26Gas leakage monitoring alarm system, its characterized in that: the light source is driven (6) by a pulsed voltageAnd (5) driving.
4. SF according to claim 16Gas leakage monitoring alarm system, its characterized in that: the inner wall of the shell (1) positioned at one side of the infrared light source (5) is provided with a spherical reflecting surface (7) facing the measuring air chamber (2).
5. SF according to claim 16Gas leakage monitoring alarm system, its characterized in that: the shell (1) is an insulating shell.
6. SF according to claim 16Gas leakage monitoring alarm system, its characterized in that: the alarm system further comprises an upper computer for remote monitoring, and the upper computer is communicated with the monitoring host through a TCP/IP port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021267698.0U CN212966442U (en) | 2020-07-01 | 2020-07-01 | SF6Gas leakage monitoring and alarming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021267698.0U CN212966442U (en) | 2020-07-01 | 2020-07-01 | SF6Gas leakage monitoring and alarming system |
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| Publication Number | Publication Date |
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| CN212966442U true CN212966442U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021267698.0U Active CN212966442U (en) | 2020-07-01 | 2020-07-01 | SF6Gas leakage monitoring and alarming system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323459A (en) * | 2021-11-22 | 2022-04-12 | 华能海南发电股份有限公司海口电厂 | Front end detecting unit device |
-
2020
- 2020-07-01 CN CN202021267698.0U patent/CN212966442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323459A (en) * | 2021-11-22 | 2022-04-12 | 华能海南发电股份有限公司海口电厂 | Front end detecting unit device |
| CN114323459B (en) * | 2021-11-22 | 2024-04-26 | 华能海南发电股份有限公司海口电厂 | Front end detection unit device |
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