CN114121428A - Gas collection box and transformer of application on transformer tank - Google Patents
Gas collection box and transformer of application on transformer tank Download PDFInfo
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- CN114121428A CN114121428A CN202111281388.3A CN202111281388A CN114121428A CN 114121428 A CN114121428 A CN 114121428A CN 202111281388 A CN202111281388 A CN 202111281388A CN 114121428 A CN114121428 A CN 114121428A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a gas collecting box and a transformer applied to a transformer oil tank, wherein the transformer is internally provided with an oil tank, the oil tank is connected with the gas collecting box, the gas collecting box is internally provided with a first gas collecting chamber, a second gas collecting chamber and a control module, an air extracting module is arranged between the first gas collecting chamber and the second gas collecting chamber and is respectively communicated with the first gas collecting chamber and the second gas collecting chamber, the air extracting module is used for extracting gas in the first gas collecting chamber into the second gas collecting chamber, the first gas collecting chamber is connected with a pressure detection module, the pressure detection module is internally provided with an alarm device, the second gas collecting chamber is internally provided with a telescopic piston and is connected with a gas detection sensor for detection, the second gas collecting chamber is internally provided with an exhaust valve for exhausting, and the control module is simultaneously connected with the air extracting module, the pressure detection module and the gas detection sensor, the service life of the transformer can be prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a gas collection box applied to a transformer oil tank and a transformer, and belongs to the technical field of transformers.
[ background of the invention ]
When a circuit in a transformer oil tank breaks down, high-temperature electric arcs generated by short-circuit current of the circuit can cause the decomposition of transformer oil to generate gas, and transformer parts at the electric arcs can be burnt or burnt to generate gas. In addition, leakage from the transformer tank can allow air to enter the transformer tank, and the air can collect at the top of the transformer tank. The space occupied by the transformer oil in the transformer is inevitably occupied by more gas accumulated at the top in the transformer oil tank, so that the transformer oil in the transformer oil tank is reduced. After transformer oil in the transformer oil tank reduces or rottes, can influence transformer oil to the cooling effect, insulating effect, arc extinction effect and the liquid seal effect of transformer, transformer oil in the transformer oil tank reduces or rottes seriously after, can cause the transformer to obtain well protection in the use, leads to the transformer to break down.
[ summary of the invention ]
The invention aims to provide a gas collecting box applied to a transformer oil tank and a transformer, which can prolong the service life of the transformer.
The technical scheme adopted by the invention is as follows:
a gas collection box applied to a transformer oil tank is installed on the oil tank of a transformer, a first gas collection chamber, a second gas collection chamber and a control module are arranged in the gas collection box, the first gas collection chamber is communicated with the inside of the transformer, an air extraction module is arranged between the first gas collection chamber and the second gas collection chamber and is respectively communicated with the first gas collection chamber and the second gas collection chamber, the air extraction module is used for extracting gas in the first gas collection chamber into the second gas collection chamber, a filter screen is arranged at the joint of the air extraction module and the first gas collection chamber, the first gas collection chamber is connected with a pressure detection module, an alarm device is arranged in the pressure detection module, a telescopic piston is arranged in the second gas collection chamber, the second gas collection chamber is connected with a gas detection sensor for detection, and a vent valve for exhausting is arranged in the second gas collection chamber, the control module is simultaneously connected with the air exhaust module, the pressure detection module and the gas detection sensor, the gas collection box is further provided with a storage and a battery, the storage is in communication connection with the control module, the battery and the control module are respectively fixed on two sides of the second gas collection chamber, and the battery is electrically connected with the control module.
The beneficial effects of the invention are as follows:
in the invention, a first gas collection chamber, a second gas collection chamber, an air extraction module, a control module, a gas detection sensor and a pressure detection module are arranged in a gas collection box, the first gas collection chamber is communicated with an oil tank, the first gas collection chamber and the second gas collection chamber are communicated through the air extraction module, the pressure detection module is connected with the first gas collection chamber, the gas detection sensor is communicated with the second gas collection chamber, the pressure detection module is used for detecting the air pressure in the first gas collection chamber, when the air pressure value in the first gas collection chamber reaches an early warning value, an alarm device in the pressure detection module sends out early warning information and transmits the early warning information to the control module, the control module controls the air extraction module to start, the air extraction module is used for extracting the gas in the first gas collection chamber into the second gas collection chamber, and the air extraction module can be used for extracting the gas in the oil tank in time, the space occupied by gas is reduced, the transformer oil in the transformer oil tank can be prevented from being reduced or deteriorated, the transformer can be well protected, the possibility of transformer failure is reduced, and the service life of the transformer is prolonged.
In addition, the gas detection sensor is arranged on the second gas collection chamber and used for detecting gas components in the second gas collection chamber, the gas extraction module is used for extracting gas in the first gas collection chamber into the second gas collection chamber, the gas detection sensor is used for detecting the gas components in the second gas collection chamber and sending a detected result to the control module, and a worker can quickly analyze the cause of the problem of the transformer according to the detected result, so that the worker can quickly remove the fault and improve the maintenance efficiency of the worker.
Preferably, the telescopic piston comprises a spring and a piston, the outer side of the piston is attached to the inner cavity of the second air collection chamber, a soft material used for increasing the attaching effect is arranged on the side face, contacted with the inner cavity, of the piston, the inner cavity is divided into a first cavity and a second cavity by the piston, the two ends of the spring are respectively connected with the inner walls of the piston and the second air collection chamber, and the spring is located in the second cavity.
Preferably, the exhaust valve is located in the first cavity, the exhaust valve is an electromagnetic exhaust valve, the control module is connected with the electromagnetic exhaust valve, and the control module controls the electromagnetic exhaust valve to be opened and closed.
Preferably, the gas detection sensor includes a detection end, the detection end being within the first chamber.
Preferably, the gas collecting box is further provided with a communication module, the communication module is arranged at the top of the second gas collecting chamber, and the communication module is in communication connection with the control module.
Preferably, the air extraction module is installed on the upper side of the first air collection chamber, the second air collection chamber is installed on the upper side of the air extraction module, and the exhaust valve is located on one side, close to the air extraction module, of the second air collection chamber.
Preferably, the first gas collection chamber is provided with a communicating end, and the first gas collection chamber is communicated with the gas collection box through the communicating end.
Preferably, the pressure detection module comprises a pressure gauge and a temperature sensor, the pressure gauge is arranged in the first gas collecting chamber, and the temperature sensor is arranged in the oil tank.
Preferably, the first gas collection chamber is internally provided on the side surface of the oil tank, transformer oil is filled in the first gas collection chamber, the pressure detection module is a liquid level meter, the liquid level meter is provided with a preset value, the liquid level meter detects the liquid level in the first gas collection chamber, and the alarm device sends out early warning information when the liquid level is lower than the preset value.
The invention also discloses a transformer, wherein the transformer comprises an oil tank, the oil tank is provided with a gas collecting box, and the gas collecting box adopts the gas collecting box of the gas collecting box applied to the oil tank of the transformer.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the structure of an oil tank and a gas collecting box in embodiment 1 of the invention;
fig. 2 is a schematic diagram of a transformer in embodiment 3 of the present invention.
Reference numerals: the gas collecting box comprises a transformer 1, an oil tank 2, a gas collecting box 3, a first gas collecting chamber 31, a gas extracting module 32, a second gas collecting chamber 33, a 331 telescopic piston, a 34 gas detection sensor, a 35 pressure detection module and a 36 control module.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
as shown in fig. 1, in this embodiment, a gas collecting box 3 applied to an oil tank 2 of a transformer 1 is shown, an oil tank 2 is arranged in the transformer 1, the oil tank 2 is connected to the gas collecting box 3, a first gas collecting chamber 31, a second gas collecting chamber 33 and a control module 36 are arranged in the gas collecting box 3, the first gas collecting chamber 31 is provided with a communicating end, the first gas collecting chamber is communicated with the inside of the transformer 1 through the communicating end, an air extraction module 32 is arranged between the first gas collecting chamber 31 and the second gas collecting chamber 33, the air extraction module 32 is respectively communicated with the first gas collecting chamber 31 and the second gas collecting chamber 33, the air extraction module 32 includes a vacuum pump, the air in the first gas collecting chamber 31 is extracted into the second gas collecting chamber 33 through the vacuum pump, in this embodiment, the air extraction module 32 is installed on the upper side of the first gas collecting chamber 31, a filter screen is arranged at a connection position of the air extraction module 32 and the first gas collecting chamber 31, the filter screen can filter transformer oil to prevent the transformer oil from entering the second air collection chamber 33, the second air collection chamber 33 is installed on the upper side of the air extraction module 32, the second air collection chamber 33 is detachably connected with the air extraction module 32, a gas valve is arranged at the connection end of the second air collection chamber 33 and the air extraction module 32, the gas valve can prevent gas in the second air collection chamber 33 from leaking after the second air collection chamber 33 is detached, so that the gas in the second air collection chamber 33 can be further detected, and the air extraction module 32 pumps the gas in the first air collection chamber 31 into the second air collection chamber 33.
In this embodiment, a pressure detection module 35 is installed on the first gas collection chamber 31, an alarm device is installed in the pressure detection module 35, the pressure detection module 35 in this embodiment is a pressure gauge, the pressure gauge detects the gas pressure in the first gas collection chamber 31, when the gas pressure in the first gas collection chamber 31 exceeds a preset value, the alarm device sends out pressure early warning information and outputs the early warning information to the control module 36, in addition, the pressure detection module 35 in this embodiment is further provided with a temperature sensor, the temperature sensor includes a temperature measurement end, the temperature measurement end is arranged in the oil tank 2, the temperature sensor is used for detecting the temperature of transformer oil in the oil tank 2 and sending temperature data to the control module 36, when the transformer 1 is stored in the control module 36 under a normal state and at different temperatures, and determining whether the first gas collection chamber 31 meets the condition that the gas extraction module 32 extracts gas according to the comparison result between the gas pressure value and the actual gas pressure value detected by the pressure detection module 35, wherein when the actual gas pressure value in the first gas collection chamber 31 reaches the condition that the gas extraction module 32 extracts gas, the control module 36 sends an air extraction instruction to the gas extraction module 32, and the gas extraction module 32 starts to extract the gas in the first gas collection chamber 31 into the second gas collection chamber 33.
Be equipped with flexible piston 331 in the second plenum chamber 33, flexible piston 331 includes spring and piston, the outside of piston with the laminating of the inner chamber of second plenum chamber 33, wherein the inner chamber of second plenum chamber 33 is the cuboid, the piston with the side that the inner chamber contacted is provided with soft material, increases the laminating effect of inner chamber and piston through this soft material, first cavity and second cavity are separated into with the inner chamber to the piston, the inner wall of piston and second plenum chamber 33 is connected respectively to the spring both ends, the spring is in the second cavity, second plenum chamber 33 is connected with the gas detection sensor 34 that is used for the detection, detection sensor includes the sense terminal, the sense terminal is in the first cavity, gas detection sensor 34 automated inspection H2, CO2, CH4, C2H6, C2H4, C2H2, O2, N2 etc. 9 kinds of gas content, the data of the gas content is sent to a control module 36 as gas detection information, an exhaust valve for exhausting is arranged in the second gas collection chamber 33, the exhaust valve is located on the inner wall of the first chamber, and the control module 36 is connected with the gas extraction module 32, the pressure detection module 35 and the gas detection sensor 34 at the same time.
In this embodiment, the exhaust valve is an electromagnetic exhaust valve, the control module 36 is connected to the electromagnetic exhaust valve, and the electromagnetic exhaust valve is opened or closed according to an instruction of the control module 36, but in other embodiments, the exhaust valve may also be a manual valve, and a worker may manually remove the gas in the second gas collecting chamber 33 through a switch of the manual valve.
In this embodiment, the control module 36 is an MCU control device, of course, in other embodiments, the control module 36 may also be a DSP, an SOC, or other control devices capable of executing corresponding operations according to received instructions, the control module 36 is connected to a buchholz relay in the transformer 1, after the control module 36 receives information transmitted by the gas detection sensor 34, the control module 36 controls the buchholz relay to operate to close the transformer 1, where the information transmitted by the gas detection sensor 34 may be information that the concentration of the combustible gas exceeds a preset threshold.
In this embodiment, the gas collection box 3 further includes a communication module, the communication module is an NB-IOT communication module, the communication module is disposed on the top of the second gas collection chamber 33, the communication module is in communication connection with the control module 36, in this embodiment, the control module 36 transmits gas detection information and early warning information through the communication module, and in other embodiments, the gas collection box 3 is further provided with a WIFI module or a USB interface, and transmits information detected by the WIFI module or the USB interface to an inspector.
In this embodiment, the gas collecting box 3 is further provided with a memory and a battery, the memory is in communication connection with the control module 36, the control module 36 stores information such as pressure information acquired by the pressure detection module 35 and temperature data transmitted by the temperature sensor through the memory, the battery and the control module 36 are fixed on different sides of the second gas collecting chamber 33, the battery is electrically connected with the control module 36, and the battery transmits electric energy to other devices in the gas collecting box 3 through the control module 36, which can be understood as a matter of course, in other embodiments, the battery and the control module 36 may also be fixed on different sides or the same side of the first gas collecting chamber 31.
In the use process of the transformer 1, after a circuit in the oil tank 2 fails, high-temperature electric arcs generated by short-circuit current of the circuit can cause the transformer oil to be decomposed to generate gas, the gas can be accumulated in the oil tank 2 and the first gas collection chamber 31, when the pressure detection module 35 detects that the air pressure value in the first gas collection chamber 31 exceeds the preset value of the pressure detection module 35, the alarm device of the pressure detection module 35 sends out pressure early warning information and sends the early warning information to the control module 36, the control module 36 controls the air extraction module 32 to be started, the air extraction module 32 extracts the gas in the first gas collection chamber 31 into the second gas collection chamber 33, the detection end of the gas detection sensor 34 detects the gas components in the inner cavity of the second gas collection chamber 33 and transmits the detection information of the gas components to the control module 36, and when the concentration of combustible gas in the information transmitted by the gas detection sensor 34 exceeds the preset threshold, the control module 36 controls the gas relay to act to close the transformer 1, and after the gas detection sensor 34 detects the gas, the control module 36 controls the exhaust valve to open, and the telescopic piston 331 exhausts the gas in the first cavity from the exhaust valve so as to perform the next detection.
Example 2:
the main differences between this embodiment and embodiment 1 are: in this embodiment, the first gas collection chamber 31 is disposed in the side surface of the oil tank 2, the first gas collection chamber 31 is communicated with the oil tank 2, the transformer oil in the oil tank 2 is filled in the first gas collection chamber 31, in this embodiment, the pressure detection module 35 is a liquid level meter, the liquid level meter is provided with a preset value, the liquid level meter detects the liquid level in the first gas collection chamber 31, and when the liquid level in the first gas collection chamber 31 is lower than the preset value, the alarm device sends out early warning information and transmits the early warning information to the control module 36.
Example 3:
as shown in fig. 2, this embodiment shows a transformer, the transformer 1 includes a tank 2 therein, the oil tank 2 is provided with a gas collecting box 3, the gas collecting box 3 adopts the gas collecting box applied to the oil tank 2 of the transformer 1 as described in embodiment 1 or embodiment 2 or other same embodiments, the transformer 1 is provided with a gas relay, the control module 36 is connected with the gas relay, after the control module 36 receives the information transmitted by the gas detection sensor 34, the detection end of the gas detection sensor 34 detects the gas component in the inner cavity of the second plenum 33, and transmits the detection information of the gas component to the control module 36, when the concentration of the combustible gas in the information transmitted by the gas detection sensor 34 exceeds a preset threshold, the control module 36 controls the action of the gas relay to close the transformer 1.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
1. The utility model provides an application is in gas collection box on transformer tank which characterized in that: the gas collecting box is installed on an oil tank of a transformer, a first gas collecting chamber, a second gas collecting chamber and a control module are arranged in the gas collecting box, the first gas collecting chamber is communicated with the inside of the transformer, an air extracting module is arranged between the first gas collecting chamber and the second gas collecting chamber and is respectively communicated with the first gas collecting chamber and the second gas collecting chamber, the air extracting module is used for extracting gas in the first gas collecting chamber into the second gas collecting chamber, a filter screen is arranged at the joint of the air extracting module and the first gas collecting chamber, the first gas collecting chamber is connected with a pressure detection module, an alarm device is arranged in the pressure detection module, a telescopic piston is arranged in the second gas collecting chamber, the second gas collecting chamber is connected with a gas detection sensor for detection, an exhaust valve for exhausting is arranged in the second gas collecting chamber, and the control module and the air extracting module, The pressure detection module is connected with the gas detection sensor, the gas collection box is further provided with a storage and a battery, the storage is in communication connection with the control module, the battery and the control module are respectively fixed on two sides of the second gas collection chamber, and the battery is electrically connected with the control module.
2. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the telescopic piston comprises a spring and a piston, the outer side of the piston is attached to the inner cavity of the second air collection chamber, the side face, contacted with the inner cavity, of the piston is provided with a soft material used for increasing the attaching effect, the piston separates the inner cavity into a first cavity and a second cavity, the two ends of the spring are respectively connected with the inner walls of the piston and the second air collection chamber, and the spring is located in the second cavity.
3. The gas collecting box applied to the oil tank of the transformer as claimed in claim 2, wherein: the exhaust valve is located in the first cavity and is an electromagnetic exhaust valve, the control module is connected with the electromagnetic exhaust valve, and the control module controls the electromagnetic exhaust valve to be opened and closed.
4. The gas collecting box applied to the oil tank of the transformer as claimed in claim 2, wherein: the gas detection sensor includes a detection end that is within the first chamber.
5. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the gas collection box is further provided with a communication module, the communication module is arranged at the top of the second gas collection chamber, and the communication module is in communication connection with the control module.
6. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the air exhaust module is installed on the upper side of the first air exhaust chamber, the second air exhaust chamber is installed on the upper side of the air exhaust module, and the exhaust valve is located on one side, close to the air exhaust module, of the second air exhaust chamber.
7. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the first gas collection chamber is provided with a communicating end, and the first gas collection chamber is communicated with the gas collection box through the communicating end.
8. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the pressure detection module comprises a pressure gauge and a temperature sensor, the pressure gauge is arranged in the first gas collection chamber, and the temperature sensor is arranged in the oil tank.
9. The gas collecting box applied to the oil tank of the transformer as claimed in claim 1, wherein: the first gas collection chamber is internally provided with the side face of the oil tank, transformer oil is filled in the first gas collection chamber, the pressure detection module is a liquid level meter, the liquid level meter is provided with a preset value, the liquid level meter detects the liquid level in the first gas collection chamber, and when the liquid level is lower than the preset value, the alarm device sends out early warning information.
10. A transformer, characterized by: the transformer comprises an oil tank, wherein a gas collecting box is arranged on the oil tank, and the gas collecting box adopts the gas collecting box applied to the oil tank of the transformer as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281388.3A CN114121428A (en) | 2021-11-01 | 2021-11-01 | Gas collection box and transformer of application on transformer tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281388.3A CN114121428A (en) | 2021-11-01 | 2021-11-01 | Gas collection box and transformer of application on transformer tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114121428A true CN114121428A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281388.3A Pending CN114121428A (en) | 2021-11-01 | 2021-11-01 | Gas collection box and transformer of application on transformer tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114121428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784651A (en) * | 2022-06-21 | 2022-07-22 | 盈帜科技（常州）有限公司 | Emergency lighting power supply device with detection function and working method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05107213A (en) * | 1991-10-18 | 1993-04-27 | Nec Corp | Detecting apparatus of gas |
| CN102419330A (en) * | 2011-12-07 | 2012-04-18 | 重庆市电力公司电力科学研究院 | Gas content detection device for hydrogen fluoride HF, and method for the same |
| CN112362817A (en) * | 2020-11-19 | 2021-02-12 | 广西电网有限责任公司柳州供电局 | Gas collection detection device and detection method for transformer gas |
| CN213337293U (en) * | 2020-08-14 | 2021-06-01 | 山西大疆环保科技有限公司 | PID sensor for VOC monitoring micro station |
| CN113567625A (en) * | 2021-07-22 | 2021-10-29 | 国电南瑞科技股份有限公司 | Automatic free gas measuring device for oil-immersed transformer |
-
2021
- 2021-11-01 CN CN202111281388.3A patent/CN114121428A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05107213A (en) * | 1991-10-18 | 1993-04-27 | Nec Corp | Detecting apparatus of gas |
| CN102419330A (en) * | 2011-12-07 | 2012-04-18 | 重庆市电力公司电力科学研究院 | Gas content detection device for hydrogen fluoride HF, and method for the same |
| CN213337293U (en) * | 2020-08-14 | 2021-06-01 | 山西大疆环保科技有限公司 | PID sensor for VOC monitoring micro station |
| CN112362817A (en) * | 2020-11-19 | 2021-02-12 | 广西电网有限责任公司柳州供电局 | Gas collection detection device and detection method for transformer gas |
| CN113567625A (en) * | 2021-07-22 | 2021-10-29 | 国电南瑞科技股份有限公司 | Automatic free gas measuring device for oil-immersed transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784651A (en) * | 2022-06-21 | 2022-07-22 | 盈帜科技（常州）有限公司 | Emergency lighting power supply device with detection function and working method thereof |
| CN114784651B (en) * | 2022-06-21 | 2022-09-09 | 盈帜科技（常州）有限公司 | Emergency lighting power supply device with detection function and working method thereof |
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