CN220438146U - Quick detection device for insulating gas in high-voltage electrical equipment - Google Patents
Quick detection device for insulating gas in high-voltage electrical equipment Download PDFInfo
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- CN220438146U CN220438146U CN202321201219.9U CN202321201219U CN220438146U CN 220438146 U CN220438146 U CN 220438146U CN 202321201219 U CN202321201219 U CN 202321201219U CN 220438146 U CN220438146 U CN 220438146U
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 230000003287 optical effect Effects 0.000 claims abstract description 71
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012031 short term test Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 73
- 238000012360 testing method Methods 0.000 description 9
- 238000000180 cavity ring-down spectroscopy Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a rapid detection device for insulating gas in high-voltage electrical equipment, which comprises an optical component, wherein the optical component comprises an optical measurer provided with an optical cavity, a pressure reducing valve, a detector, a booster pump, a laser and a first data processor, the optical cavity comprises an air inlet, a first detection port, an air outlet and a second detection port, the air inlet is communicated with the high-voltage electrical equipment through the pressure reducing valve, the first detection port is connected with the detector, the air outlet is communicated with the high-voltage electrical equipment through the booster pump, the second detection port is connected with the laser, and the laser and the detector are both in communication connection with the first data processor. The method solves the problems that the insulating gas sample is difficult to recycle due to large detecting and collecting quantity of the insulating gas in the prior high-voltage electrical equipment. The tested insulating gas is injected back into the electrical equipment after being pressurized by the pump, so that the recovery of the tested insulating gas is realized, and the air supplementing can be carried out without detecting loss after the insulating gas of the high-voltage electrical equipment is rapidly detected.
Description
Technical Field
The utility model relates to the field of gas detection, in particular to a rapid detection device for insulating gas in high-voltage electrical equipment.
Background
In the long-term operation process of the high-voltage electrical equipment, defects such as internal particles or foreign residues, poor manufacturing process and the like can cause insulation faults, so that the insulation gas is decomposed, and a large amount of toxic gas decomposition products are generated. The accurate detection of the characteristic decomposition products of the insulating gas realizes the early warning of the insulating fault of the high-voltage electrical equipment, and provides guarantee for the safe operation of the high-voltage electrical equipment.
In the existing high-voltage electrical equipment, insulating gas is used for extracting a gas sample from the high-voltage electrical equipment and then is sent to a laboratory for detection by a special spectrometer, the waiting time is long, insulating gas data cannot be obtained immediately, and therefore the safety of the high-voltage electrical equipment cannot be determined at the first time. Of course, there are also techniques for detecting by cavity ring-down spectroscopy (CRDS), which is a rapid, efficient and accurate trace gas detection technique. Unlike conventional absorption spectroscopy, CRDS technology does not measure absorption directly, but measures the decay time after passing through absorption, is insensitive to the amplitude fluctuation noise of the light source, and has high measurement sensitivity. In addition, the CRDS has the advantages of simple device, easy operation, high measurement speed and the like.
However, the trace component detection device based on the cavity ring-down spectrum has large gas requirement for single detection, at least 10L of continuous ventilation is realized, and the detection accuracy can be realized by more than 90 percent. The insulating gas has poor environmental friendliness, and the insulating gas is extremely difficult to recycle in the inspection process. How to reduce single gas production in the detection process and realize the rapid recovery of the insulating gas is always a difficult problem of detecting trace components of the insulating gas.
Disclosure of Invention
The utility model aims to provide a rapid detection device for insulating gas in high-voltage electrical equipment, which can effectively solve the problem that an insulating gas sample of the existing high-voltage electrical equipment is difficult to recover.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides an insulating gas short-term test device in high-voltage electrical equipment, includes optical subassembly, optical subassembly is including the optical measurement ware, relief pressure valve, detector, booster pump, laser instrument and the first data processor that are equipped with the optical cavity, the optical cavity includes air inlet, first detection mouth, gas outlet and second detection mouth, the air inlet passes through the relief pressure valve and communicates with high-voltage electrical equipment, first detection mouth links has the detector, the gas outlet passes through booster pump and communicates with high-voltage electrical equipment, the second detection mouth links has the laser instrument, the laser instrument with the detector all is connected with first data processor communication.
In the rapid detection device for the insulating gas in the high-voltage electrical equipment, a throttle valve is further arranged between the pressure reducing valve and the air inlet.
In the rapid detection device for the insulating gas in the high-voltage electrical equipment, the flow rate of the gas in the optical cavity is 0.5-2L/min.
In the rapid detection device for the insulating gas in the high-voltage electrical equipment, the gas pressure in the optical cavity is 0.08-0.12MPa.
In the rapid detection device for the insulating gas in the high-voltage electrical equipment, the rapid detection device for the insulating gas in the high-voltage electrical equipment further comprises a data terminal, the data terminal comprises a second data processor, a second data transmitter and a display, the second data transmitter and the display are electrically connected with the second data processor, the optical assembly further comprises a first data transmitter in wireless communication with the second data transmitter, and the first data transmitter is electrically connected with the first data processor.
In the rapid detection device for insulating gas in high-voltage electrical equipment, the data terminal is a handheld data terminal, and the data terminal further comprises a battery, and the battery is electrically connected with the second data processor.
In the rapid detection device for insulating gas in high-voltage electrical equipment, the data terminal further comprises a data memory, and the data memory is electrically connected with the second data processor.
Compared with the prior art, the utility model has the advantages that:
the optical measurer is directly connected with the high-voltage electrical equipment, and is provided with the air inlet and the air outlet, and the air outlet is also connected with the high-voltage electrical equipment, so that the problem that an insulating gas sample in the current high-voltage electrical equipment is difficult to recover is solved. The pressure of the insulating gas in the high-voltage electrical equipment is reduced and input into the optical cavity of the optical measurer through the pressure reducing valve, infrared laser is emitted by a laser connected with the optical cavity to form ring-down in the optical cavity, and the detector detects the optical ring-down signal to obtain the ring-down time. The tested insulating gas is injected back into the electrical equipment after being pressurized by the pump, so that the recovery of the tested insulating gas is realized, the insulating gas in the high-voltage electrical equipment is basically lossless, the gas quantity required in sampling is small, the normal operation of the high-voltage electrical equipment is not influenced even if the gas quantity is detected for many times, and the gas supplementing can be realized without detecting loss after the quick detection of the insulating gas of the high-voltage electrical equipment is realized.
Further, a throttle valve is arranged between the pressure reducing valve and the air inlet. And a throttle valve is arranged to reduce the speed of the insulating gas in the high-voltage electrical equipment entering the optical cavity, so as to obtain more accurate detection data.
Further, the flow rate of the gas in the optical cavity is 0.5-2L/min. The gas flow in the optical cavity is lower than 0.5L/min or higher than 2L/min, so that the detection data deviation can be caused, and the detector cannot obtain an accurate optical ring-down signal.
Further, the gas pressure in the optical cavity is 0.08-0.12MPa. The excessive pressure of the gas in the optical cavity has too high requirements on the sealing connectivity between the optical measurer and each part, and the pressure is too low to reach the test condition.
Further, the device for rapidly detecting the insulating gas in the high-voltage electric comprises a data terminal, wherein the data terminal comprises a second data processor, a second data transmitter and a display, the second data transmitter and the display are electrically connected with the second data processor, the optical assembly further comprises a first data transmitter in wireless communication with the second data transmitter, and the first data transmitter is electrically connected with the first data processor. The data terminal is added and wireless communication with the optical assembly is realized, so that the portable high-voltage electric equipment is more convenient to carry, and the operator is not influenced to check the test data even if the high-voltage electric equipment is narrow in space.
Further, the data terminal is a handheld data terminal, and the data terminal further comprises a battery, and the battery is electrically connected with the second data processor. The data terminal is made into a hand-held type, which is more beneficial to carrying and using, and the battery is adopted to independently supply power, so that the influence of the wire harness can be eliminated.
Further, the data terminal also comprises a data memory, and the data memory is electrically connected with the second data processor. The data storage is added to store the test data, so that the test data at different time can be checked conveniently for comparison.
Drawings
FIG. 1 is a block diagram of a device for rapidly detecting insulating gas in high-voltage electrical equipment according to the present utility model;
fig. 2 is a sectional view of an optical measurer in an insulating gas rapid detection apparatus in a high-voltage electrical apparatus according to the present utility model.
Reference numerals:
the optical assembly 10, the optical measurer 11, the optical cavity 111, the air inlet 112, the first detection port 113, the air outlet 114, the second detection port 115, the first data transmitter 12, the pressure reducing valve 13, the detector 14, the booster pump 15, the laser 16, the first data processor 17 and the throttle valve 18;
a data terminal 20, a second data processor 21, a second data transmitter 22, a display 23, a battery 24, a data memory 25;
high voltage electrical apparatus 30.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 and 2, an embodiment of a rapid detection device for insulating gas in high-voltage electrical equipment according to the present utility model includes an optical assembly 10, where the optical assembly 10 includes an optical measurer 11 having an optical cavity 111, a pressure reducing valve 13, a detector 14, a booster pump 15, a laser 16 and a first data processor 17, the optical measurer 11 is a closed container, the optical measurer 11 in this embodiment is cylindrical, one end of the optical measurer 11 is provided with an air inlet 112 and a first detection port 113, the air inlet 112 is opened on a side wall of an end of the optical measurer 11, the first detection port 113 is opened on an end face of the optical measurer 11, the air inlet 112 is communicated with the high-voltage electrical equipment 30 through the pressure reducing valve 13, and is used for introducing insulating gas in the high-voltage electrical equipment 30 into the optical cavity 111, the first detection port 113 is connected with the detector 14, and an optical ring-down signal is measured through the detector 14. The other end of the optical measurer 11 is provided with an air outlet 114 and a second detection port 115, the air outlet 114 is communicated with the high-voltage electrical equipment 30 through a booster pump 15 and is used for pressurizing and filling the gas in the optical cavity 111 back into the high-voltage electrical equipment to realize recovery of insulating gas, the air outlet 114 is formed on the side wall of the optical measurer 11, the second detection port 115 is formed on the end face of the optical measurer 11, the second detection port 115 is connected with a laser 16, and infrared laser is emitted through the laser 16 to form ring-down in the optical cavity 111. The pressure reducing valve 13, the detector 14, the booster pump 15 and the laser 16 are all electrically connected with the first data processor 17 for communication, and the operation of the pressure reducing valve 13, the detector 14, the booster pump 15 and the laser 16 can be controlled by the first data processor 17.
Since the flow rate of the insulating gas entering the optical cavity 111 from the high-voltage electrical apparatus 30 is too fast, the test data may be inaccurate, so the throttle valve 18 may be added between the pressure reducing valve 13 and the air inlet 112 to control the flow rate of the insulating gas entering the optical cavity 111, generally the flow rate of the gas entering the optical cavity 111 is controlled to be 0.5-2L/min, and the flow rate of the gas may be 0.5L/min, 1L/min, 1.5L/min, or 2L/min according to the size of the optical cavity 111 and the test requirement. In addition, the pressure of the insulating gas entering the optical cavity 111 is also lower than the pressure of the insulating gas in the high-voltage electrical equipment 30, and the pressure of the insulating gas in the high-voltage electrical equipment 30 is generally 0.3-0.5Mpa, so that the pressure of the insulating gas entering the optical cavity 111 after passing through the pressure reducing valve 13 is 0.08-0.12Mpa, and the pressure of the insulating gas in the optical cavity 111 is controlled to be 0.08Mpa, 0.1Mpa or 0.12Mpa according to the detection requirement.
Further, since the detection device is to be carried to the site to detect the high-voltage electrical equipment 30, in order to reduce the size of the equipment and facilitate the carrying, the rapid detection device for the insulating gas in the high-voltage electrical equipment further comprises a data terminal 20, the data terminal 20 comprises a second data processor 21, a second data transmitter 22 and a display 23 which are electrically connected with the second data processor 21, the optical assembly 10 further comprises a first data transmitter 12 which is in wireless communication with the second data transmitter 22, the first data transmitter 12 is electrically connected with the first data processor 17, the data detected by the optical assembly 10 is transmitted to the data terminal 20 through the communication between the first data transmitter 12 and the second data transmitter 22, and the data terminal 20 can also control the operation of the optical assembly 10, so that in a narrow space, an operator can move to a proper position to operate the device to detect the insulating gas and conveniently read the detected data.
Still further, the data terminal 20 is a handheld data terminal, a battery 24 is disposed in the data terminal 20, and the battery 24 is electrically connected with the second data processor 21, so that the movable range of the data terminal 20 is further enlarged, and the battery 24 is used to supply power to the electrical components in the data terminal 20.
A data memory 25 may also be provided in the data terminal 20, the data memory 25 being electrically connected to the second data processor 21 for storing test data for convenient data comparison and review by an operator.
During testing, the pressure reducing valve 13 and the booster pump 15 are connected with corresponding insulating gas interfaces on the high-voltage electrical equipment 30, insulating gas enters the optical cavity 111 through the pressure reducing valve and the throttle valve 18, the pressure of the insulating gas in the electrical equipment is reduced by 0.3-0.5MPa to 0.1MPa by the pressure reducing valve 13, and the throttle valve 18 is responsible for controlling the flow in the optical cavity 111 to 0.5-2L/min; the laser 16 emits infrared laser light to form ring-down in the optical cavity 111, the detector 14 measures the optical ring-down signal, and the detected data is sent to the first data processor 17; after the insulating gas is introduced into the optical cavity 111, the ring-down time is changed, and the laser control and first data processor 17 calculates the exact ring-down time and transmits the ring-down time to the data terminal 20 in a wireless transmission manner through the first data transmitter 12. The data terminal 20 receives the data transmitted by the first data transmitter 12 via the second data transmitter 22, and the data is processed by the second data processor 21 and stored in the memory, and may also be displayed on the display 23.
Through the insulating gas rapid detection device, the insulating gas in the high-voltage electrical equipment 30 can be rapidly detected, the insulating gas after detection can be recycled into the high-voltage electrical equipment 30, the total amount of the insulating gas of the high-voltage electrical equipment 30 is basically unaffected, the problem that an insulating gas sample is difficult to recycle is solved on the premise of ensuring the accuracy of test data, and the sampled insulating gas can be recycled into the high-voltage electrical equipment, so that the sampling gas demand for the detection process is not large, and the insulating gas sample is not required to be carried.
The above embodiments are merely illustrative embodiments of the present utility model, but the technical features of the present utility model are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present utility model are included in the scope of the present utility model.
Claims (7)
1. The utility model provides an insulating gas short-term test device in high-voltage electrical equipment, its characterized in that includes optical subassembly, optical subassembly is including the optical measurement ware, relief pressure valve, detector, booster pump, laser instrument and the first data processor that are equipped with the optical cavity, the optical cavity includes air inlet, first detection mouth, gas outlet and second detection mouth, the air inlet passes through relief pressure valve and high-voltage electrical equipment intercommunication, first detection mouth links to have the detector, the gas outlet passes through booster pump and high-voltage electrical equipment intercommunication, the second detection mouth links to have the laser instrument, the laser instrument with the detector all is connected with first data processor communication.
2. The rapid detection device for insulating gas in high-voltage electrical equipment according to claim 1, wherein a throttle valve is further provided between the pressure reducing valve and the air inlet.
3. The rapid detection apparatus for insulating gas in high voltage electrical equipment according to claim 2, wherein the gas flow rate in the optical cavity is 0.5-2L/min.
4. The rapid detection apparatus for insulating gas in high voltage electrical equipment according to claim 1, wherein the gas pressure in the optical cavity is 0.08-0.12MPa.
5. The rapid detection apparatus for insulating gas in high voltage electrical equipment according to claim 1, wherein the rapid detection apparatus for insulating gas in high voltage electrical equipment further comprises a data terminal, the data terminal comprises a second data processor and a second data transmitter and a display electrically connected with the second data processor, the optical assembly further comprises a first data transmitter in wireless communication with the second data transmitter, and the first data transmitter is electrically connected with the first data processor.
6. The rapid detection apparatus for insulating gas in a high voltage electrical apparatus according to claim 5, wherein the data terminal is a hand-held data terminal, the data terminal further comprising a battery, the battery being electrically connected to the second data processor.
7. The rapid detection apparatus for insulating gas in a high voltage electrical apparatus according to claim 5, wherein said data terminal further comprises a data memory, said data memory being electrically connected to said second data processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201219.9U CN220438146U (en) | 2023-05-15 | 2023-05-15 | Quick detection device for insulating gas in high-voltage electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201219.9U CN220438146U (en) | 2023-05-15 | 2023-05-15 | Quick detection device for insulating gas in high-voltage electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220438146U true CN220438146U (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321201219.9U Active CN220438146U (en) | 2023-05-15 | 2023-05-15 | Quick detection device for insulating gas in high-voltage electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220438146U (en) |
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2023
- 2023-05-15 CN CN202321201219.9U patent/CN220438146U/en active Active
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