Gas detection device, detection method thereof and distribution room system

Abstract

The invention relates to the technical field of gas detection, and discloses a gas detection device, a detection method thereof and a distribution room system.The gas detection device arranged in a distribution room comprises a gas inlet filtering mechanism, a quantitative detection mechanism and an absorption purification mechanism and is used for detecting the concentration of target gas and inputting air in the distribution room into a gas inlet box for filtering; then the filtered air is input into one of the isolation tanks in an annular array on the rotary adjusting seat, meanwhile, the retained air is discharged, the transmission motor drives the rotary adjusting seat to rotate, and the air in the isolation tanks is updated and replaced in sequence; the small infrared spectrum analyzer can accurately measure the content of target gas in quantitative air in the isolation tank, the gas collection seat can discharge the detected air inside the isolation tank, input the air into the absorption treatment box, purify the air and then discharge the air, the detected air can be conveniently and circularly purified, harmful gas in the distribution room is actively reduced, and the safety of the distribution room is improved. And the working safety and efficiency of the power distribution room system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to a gas detection device and a detection method thereof, and a distribution room system. Background Art

[0002] In high-voltage equipment, in substations and distribution rooms, high-voltage electrical signals need to be isolated from the external environment to ensure the normal operation of the equipment and personal safety. Sulfur hexafluoride is a highly electronegative gas, which can play a very important insulating role. Its molecules can easily adsorb free electrons to form negative ions with large mass, weakening the collision ionization process in the gas. Therefore, the electrical insulation strength is very high, and its arc extinguishing ability is about 100 times that of air. Since sulfur hexafluoride gas has excellent arc extinguishing performance, insulation performance and good chemical stability, it has been used as an arc extinguishing medium for high-voltage circuit breakers since the late 1950s.

[0003] At normal temperature and pressure, sulfur hexafluoride is a colorless, odorless, non-toxic, and non-flammable stable gas. However, high concentrations of sulfur hexafluoride can cause varying degrees of harm to the human body, such as nausea, vomiting, headache, insomnia, fatigue, etc. In severe cases, it may even lead to death. Therefore, when sulfur hexafluoride is used in the distribution room, it is also necessary to detect the concentration of sulfur hexafluoride gas in the air in order to control the work progress of personnel at any time.

[0004] When the existing detection device detects the concentration of sulfur hexafluoride gas in the distribution room, other components in the air are likely to interfere with the detection results, making it impossible to perform quantitative and continuous detection of the air, and it is not convenient to purify the air after detection, and it is impossible to actively reduce the sulfur hexafluoride concentration in the distribution room. Summary of the invention

[0005] The object of the present invention is to provide a gas detection device and a detection method thereof and a distribution room system, which can filter and quantitatively detect the air in the distribution room, effectively improve the accuracy of detection, and facilitate purification of the detected air, thereby improving the working safety and efficiency of the distribution room system.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A gas detection device is placed in the power distribution room and is used to detect the target gas concentration in the power distribution room. The gas detection device includes:

[0008] An air intake filter mechanism, the air intake filter mechanism comprises an air intake box, an electric push rod is fixedly arranged on one side of the upper end of the air intake box, an air intake port is opened on the other side of the upper end of the air intake box, a blocking plate is fixedly arranged on the output end of the electric push rod, and the electric push rod can control the blocking plate to selectively block the air intake port; a positioning mounting frame is fixedly arranged on the front end surface of the air intake box, a supporting frame is fixedly arranged on the rear end surface of the positioning mounting frame, the height of the supporting frame is lower than the air intake port, a filter is fixedly arranged on the upper end surface of the supporting frame, and the filter is embedded in the air intake box;

[0009] A quantitative detection mechanism, the quantitative detection mechanism comprises a partition frame, a first sealing plate is fixedly provided at the front end of the partition frame, a second sealing plate is fixedly provided at the rear end of the partition frame, a rotating adjustment seat is rotatably connected between the first sealing plate and the second sealing plate, and a plurality of isolation tanks are arranged in an internal annular array of the rotating adjustment seat; one end of an air intake pipe is installed at the front end surface of the first sealing plate, the other end of the air intake pipe is provided at the lower end of the air intake box, the air intake box and the rotating adjustment seat are connected through the air intake pipe, the air intake pipe is in close contact with the rotating adjustment seat, and a plurality of isolation tanks are connected with the air intake pipe in sequence;

[0010] A transmission frame is fixedly arranged in the middle of the rotation adjustment seat, and a transmission motor, a small infrared spectrometer and a gas collecting seat are fixedly arranged at intervals on the rear end face of the second sealing plate. The small infrared spectrometer and the gas collecting seat both penetrate the second sealing plate and are in close contact with the rotation adjustment seat. The output end of the transmission motor penetrates the second sealing plate and is fixedly connected to the transmission frame. The output end of the transmission motor can control the rotation of the rotation adjustment seat through the transmission frame, so that the isolation tank that has been docked with the air inlet pipe can be docked with the small infrared spectrometer in turn, and the isolation tank that has been docked with the small infrared spectrometer can be docked with the gas collecting seat in turn; an air outlet pipe is fixedly arranged on the rear end face of the gas collecting seat;

[0011] The absorption and purification mechanism comprises an absorption treatment box, the air outlet conveying pipe can extend into the absorption treatment box, and an exhaust port is provided at the top of the absorption treatment box.

[0012] As an optional technical solution of the gas detection device, the gas detection device also includes a protection display mechanism, the protection display mechanism includes a protection installation box, the air intake filtering mechanism, the quantitative detection mechanism and the absorption purification mechanism are all placed in the protection installation box, the air intake box, the partition frame and the absorption treatment box are all fixedly connected to the protection installation box, one side of the air intake box is fitted with the inner wall of the protection installation box, and the other side of the air intake box is fitted and fixed with the partition frame, and the partition frame is located above the absorption treatment box;

[0013] The front end face of the protective installation box is rotatably connected to a box door, an operation panel is fixedly provided on the outer side of the box door, a display screen is fixedly provided on the front end face of the operation panel, a battery pack is fixedly provided on the bottom of the protective installation box, and the operation panel is electrically connected to the battery pack.

[0014] As an optional technical solution for the gas detection device, an alarm light is fixedly installed on the upper end of the protective installation box, and the alarm light is electrically connected to the battery pack. The alarm light can detect and determine whether the gas discharged by the absorption and purification mechanism is safe.

[0015] As an optional technical solution for the gas detection device, the protective installation box is provided with an air intake grille at the corresponding position of the air inlet, a sealing strip is provided between the side of the air intake grille and the sealing plate, and the four end corners of the sealing plate are connected to the air intake box through four supporting springs.

[0016] As an optional technical solution for the gas detection device, the positioning and mounting frame is fixedly provided with a plurality of support frames along the vertical direction, and the filter element is divided into a filter cotton plate and a filter mesh plate, wherein the filter cotton plates are fixedly provided on the upper end surfaces of two of the support frames, and the filter mesh plates are fixedly provided on the upper end surfaces of the remaining support frames.

[0017] As an optional technical solution for the gas detection device, a water washing box and an alkali washing box are fixedly installed on the inner side of the absorption treatment box. The water washing box and the alkali washing box are connected through an air guide connecting pipe, the gas collecting seat and the water washing box are connected through the air outlet conveying pipe, and the exhaust port is arranged at the upper end of the alkali washing box.

[0018] As an optional technical solution of the gas detection device, the absorption and purification mechanism also includes an exhaust pipe and a neutralization box. The exhaust pipe is connected to the exhaust port, and the alkali washing box and the neutralization box are connected through the exhaust pipe. A filter cotton ball is arranged inside the neutralization box, and an acidic solution is adhered to the inside of the filter cotton ball.

[0019] As an optional technical solution for the gas detection device, the gas collecting seat can be docked with two adjacent isolation tanks at the same time.

[0020] A detection method for a gas detection device is applied to any of the above-mentioned gas detection devices, and the detection method for a gas detection device comprises the following steps:

[0021] S1. Place the gas detection device in the power distribution room and turn on the power supply; when detecting the target gas concentration in the power distribution room, start the electric push rod, so that the electric push rod drives the blocking plate to separate from the air inlet box under the support of the air inlet box, and an air pump is provided in the middle of the air inlet pipe and the air outlet pipe, so that the air in the power distribution room can be input into the air inlet box through the air pump and filtered through the filter element;

[0022] S2, inputting the filtered air into one of the isolation tanks through the air inlet conveying pipe, and at the same time being able to discharge the air trapped in one of the isolation tanks through the air outlet conveying pipe; starting the transmission motor, so that the transmission motor drives the rotating adjustment seat and the isolation tank to rotate between the first sealing plate and the second sealing plate through the transmission frame under the support of the second sealing plate, and the air inside the multiple isolation tanks is updated in turn;

[0023] S3, the isolation tank has a fixed volume, and the small infrared spectrometer uses infrared light to pass through the air in the isolation tank and absorb the spectrum generated by the target gas to accurately measure the target gas content in the air in the isolation tank;

[0024] S4, the air outlet conveying pipe discharges the detected air inside the isolation tank through the air collecting seat and inputs it into the absorption treatment box for purification, and then discharges it through the exhaust port.

[0025] A distribution room system, comprising any of the gas detection devices described above, further comprising a distribution room and a monitoring unit, wherein the distribution room comprises an incoming line cabinet, a metering cabinet, a PT cabinet, an outgoing line cabinet, a contact cabinet and an isolation cabinet; the monitoring unit comprises an image monitoring module and a line monitoring module, wherein the image monitoring module comprises a camera, a signal transmission line, a signal processing component and an image display; the line monitoring module comprises a transformer, a current sensor and a voltage sensor, wherein the transformer converts the high voltage electricity of the distribution room into low voltage electricity for monitoring via the current sensor and the voltage sensor.

[0026] Beneficial effects of the present invention:

[0027] The gas detection device provided by the present invention is placed in the distribution room and is used to detect the target gas concentration in the distribution room. It includes an air intake filtering mechanism, a quantitative detection mechanism and an absorption and purification mechanism. The sealing plate is separated from the air intake box by an electric push rod, and the air in the distribution room is input into the air intake box and filtered through the filter element; then the filtered air is input into one of the isolation tanks through the air intake pipe, and the air trapped in one of the isolation tanks can be discharged through the air outlet pipe, so as to facilitate the renewal and replacement of the air inside the isolation tank; the transmission motor drives the rotating adjustment seat and the isolation tank to rotate through the transmission frame, so that the air inside multiple isolation tanks can be renewed in turn.

[0028] The air inside the isolation tank is in a quantitative state. A small infrared spectrometer uses infrared light to pass through the air in the isolation tank and absorb the spectrum generated by the target gas to accurately measure the target gas content in the air in the isolation tank. The gas outlet pipe can discharge the detected air inside the isolation tank through the gas collecting seat and input it into the absorption treatment box for purification, and then discharge it through the exhaust port. The use of this gas detection device can filter and quantitatively detect the air in the distribution room, effectively improve the accuracy of the detection, and facilitate the circulation and purification of the detected air. It can effectively and actively reduce harmful gases in the distribution room until the air in the distribution room meets the safety standards, thereby improving the working safety and efficiency of the distribution room system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a configuration relationship diagram of a power distribution room system provided in a specific embodiment of the present invention;

[0030] Figure 2 is a first structural schematic diagram of a gas detection device provided in a specific embodiment of the present invention;

[0031] Figure 3 is a second structural schematic diagram of a gas detection device provided in a specific embodiment of the present invention;

[0032] Figure 4 is an internal structure diagram of a gas detection device provided in a specific embodiment of the present invention;

[0033] Figure 5 is a first cross-sectional view of the interior of a gas detection device provided in a specific embodiment of the present invention;

[0034] Figure 6 is a second internal cross-sectional view of a gas detection device provided in a specific embodiment of the present invention;

[0035] Figure 7 is a third internal cross-sectional view of the gas detection device provided in a specific embodiment of the present invention;

[0036] Figure 8 is a fourth internal cross-sectional view of a gas detection device provided in a specific embodiment of the present invention;

[0037] Fig. 9 It is a partial structural schematic diagram of a quantitative detection mechanism of a gas detection device provided in a specific embodiment of the present invention;

[0038] Fig.10 yes Fig. 9 Hide the structural diagram of the second cover plate.

[0039] In the figure:

[0040] 1. Protection display mechanism; 101. Protection installation box; 102. Box door; 103. Operation panel; 104. Warning light; 105. Battery pack;

[0041] 2. Air intake filter mechanism; 201. Air intake box; 202. Positioning and mounting frame; 203. Blocking plate; 204. Support spring; 205. Electric push rod; 206. Filter cotton plate; 207. Filter screen plate; 208. Support frame;

[0042] 3. Quantitative detection mechanism; 301. partition frame; 302. first sealing plate; 303. air inlet pipe; 304. second sealing plate; 305. rotation adjustment seat; 306. isolation tank; 307. air outlet pipe; 308. transmission frame; 309. transmission motor; 310. gas collecting seat; 311. small infrared spectrometer;

[0043] 4. Absorption purification mechanism; 401. Absorption treatment box; 402. Water washing box; 403. Alkaline washing box; 404. Air guide connecting pipe; 405. Exhaust pipe; 406. Neutralization box. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] The present invention discloses a gas detection device and a detection method thereof and a distribution room system. The gas detection device is placed in the distribution room and is used to detect the target gas concentration in the distribution room. In this embodiment, the main target gas detected is sulfur hexafluoride. In order to know the concentration of sulfur hexafluoride in the air in the distribution room in real time, the work progress of the personnel can be controlled at any time. It can be understood that the gas detection device and the detection method provided by the present invention can also be used to detect other gases. In combination with the main detection instrument in the gas detection device, a small infrared spectrometer, the spectral parameters are changed, which is determined by the staff in this field according to the actual project. The determination method is a conventional technical means in this field, which will not be elaborated here.

[0049] See also Figure 1 , an embodiment provided by the present invention: a distribution room system, including a distribution room, a monitoring unit and a gas detection device, the distribution room includes an incoming line cabinet, a metering cabinet, a PT cabinet, an outgoing line cabinet, a contact cabinet and an isolation cabinet; the monitoring unit includes an image monitoring module and a line monitoring module, the image monitoring module includes a camera, a signal transmission line, a signal processing component and an image display, the line monitoring module includes a transformer, a current sensor and a voltage sensor, the transformer converts the high voltage electricity of the distribution room into low voltage electricity for monitoring through the current sensor and the voltage sensor, and the monitoring unit can monitor the image and line in the distribution room in real time. The gas detection device can detect and purify at the same time, circulate the air in the distribution room, and actively reduce the concentration of sulfur hexafluoride in the distribution room.

[0050] Specific as Figures 2 to 5As shown, an embodiment of the present invention is provided: a gas detection device, comprising a protective display mechanism 1, an air intake filter mechanism 2, a quantitative detection mechanism 3 and an absorption purification mechanism 4. Among them, the protective display mechanism 1 comprises a protective installation box 101, the air intake filter mechanism 2, the quantitative detection mechanism 3 and the absorption purification mechanism 4 are all placed in the protective installation box 101, the air intake box 201 of the air intake filter mechanism 2, the partition frame 301 of the quantitative detection mechanism 3 and the absorption treatment box 401 of the absorption purification mechanism 4 are all fixedly connected to the protective installation box 101, one side of the air intake box 201 is fitted with the inner wall of the protective installation box 101, and the other side of the air intake box 201 is fitted and fixed with the partition frame 301, and the partition frame 301 is located above the absorption treatment box 401.

[0051] The front end of the protective installation box 101 is rotatably connected to a box door 102, an operation panel 103 is fixedly provided on the outside of the box door 102, a display screen is fixedly provided on the front end of the operation panel 103, a battery pack 105 is fixedly provided at the bottom of the protective installation box 101, and the operation panel 103 is electrically connected to the battery pack 105. Various parameters in the gas detection process can be displayed through the operation panel 103.

[0052] An alarm light 104 is also fixedly installed on the upper end of the protective installation box 101. The alarm light 104 is electrically connected to the battery pack 105. A gas quality detector is arranged inside the protective installation box 101 at a position corresponding to the alarm light 104. The gas quality detector is communicatively connected to the alarm light 104. The gas quality detector can detect and determine whether the gas discharged by the absorption and purification mechanism 4 is safe. When the discharged gas is not completely purified or the purification function of the absorption and purification mechanism 4 fails, the alarm light 104 lights up and sounds an alarm to remind the staff to pay attention to environmental safety and perform maintenance in time.

[0053] See also Figures 4 to 7 An electric push rod 205 is fixedly arranged on one side of the upper end of the air inlet box 201 of the air inlet filter mechanism 2, an air inlet is opened on the other side of the upper end of the air inlet box 201, a blocking plate 203 is fixedly arranged on the output end of the electric push rod 205, and the electric push rod 205 can control the blocking plate 203 to selectively block the air inlet; an air inlet fence is arranged at the corresponding position of the air inlet of the protective installation box 101, a sealing strip is arranged between the side of the air inlet fence and the blocking plate 203, and the four end corners of the blocking plate 203 are connected to the air inlet box 201 through four supporting springs 204. The blocking plate 203 facilitates the blocking of the air inlet box 201, thereby facilitating the quantitative air intake operation and reducing the entry and accumulation of dust and impurities.

[0054] Specifically, a positioning mounting frame 202 is fixedly installed on the front end surface of the air intake box 201, and a plurality of support frames 208 are fixedly installed on the rear end surface of the positioning mounting frame 202 in the vertical direction. The height of the support frames 208 is lower than the air inlet, and a filter element is fixedly installed on the upper end surface of the support frame 208. The filter element is embedded in the air intake box 201, and the filter element is divided into a filter cotton plate 206 and a filter mesh plate 207. The upper end surfaces of two of the support frames 208 are fixedly provided with filter cotton plates 206, and the upper end surfaces of the remaining support frames 208 are fixedly provided with filter mesh plates 207, so that multiple filtering is performed through the filter cotton plates 206 and the filter mesh plates 207.

[0055] See also Figures 3 to 10 The partition frame 301 of the quantitative detection mechanism 3 is fixedly provided with a first sealing plate 302 at the front end, and a second sealing plate 304 is fixedly provided at the rear end of the partition frame 301. A rotating adjustment seat 305 is rotatably connected between the first sealing plate 302 and the second sealing plate 304. The internal annular array of the rotating adjustment seat 305 has a plurality of isolation tanks 306, and the isolation tanks 306 are connected to the rotating adjustment seat 305 by threads; one end of the intake conveying pipe 303 is installed on the front end surface of the first sealing plate 302, and the lower end of the intake box 201 is provided with The other end of the air intake pipe 303 is provided, and the air intake box 201 is connected with the rotating adjustment seat 305 through the air intake pipe 303. The air intake pipe 303 sequentially passes through the air intake box 201, the partition frame 301 and the first sealing plate 302. The air intake pipe 303 is in close contact with the rotating adjustment seat 305, and a plurality of isolation tanks 306 are connected with the air intake pipe 303 in sequence. Air is input into the inner side of one of the isolation tanks 306 through the air intake pipe 303 to realize quantitative sampling of the isolation tank 306.

[0056] A transmission frame 308 is fixedly arranged in the middle of the rotating adjustment seat 305, and a transmission motor 309, a small infrared spectrometer 311 and an air collecting seat 310 are fixedly arranged at intervals on the rear end surface of the second sealing plate 304. The small infrared spectrometer 311 and the air collecting seat 310 both penetrate the second sealing plate 304 and are in close contact with the rotating adjustment seat 305. The output end of the transmission motor 309 penetrates the second sealing plate 304 and is fixedly connected to the transmission frame 308. The output end of the transmission motor 309 can control the rotating adjustment seat 305 and the isolation tank 306 to rotate through the transmission frame 308, so that the isolation tank 306 that has been connected to the air intake conveying pipe 303 can be connected to the small infrared spectrometer 311 in turn, and the air inside multiple isolation tanks 306 can be quantitatively detected in turn through the small infrared spectrometer 311. At the same time, the isolation tank 306 that has been docked with the small infrared spectrometer 311 is docked with the gas collecting seat 310 in turn. The rear end face of the gas collecting seat 310 is fixedly provided with an air outlet conveying pipe 307 to facilitate the detection and replacement of the air inside the isolation tank 306.

[0057] The electric push rod 205 (example model is HTKC-35), transmission motor 309 (example model is GV50-3.7KW-60-S) and small infrared spectrometer 311 (example model is IAS-8120) mentioned above can all be purchased from the market or customized.

[0058] Furthermore, the gas collecting seat 310 can dock with two adjacent isolation tanks 306 at the same time to extract the air in the two. The rotating adjustment seat 305 rotates clockwise and only rotates the position of one isolation tank 306 at a time. Each isolation tank 306 will be evacuated twice by the gas collecting seat 310 after detection. The gas in the isolation tank 306 is updated more thoroughly, making the detection result of the gas detection device more accurate.

[0059] See also Figures 4 to 7 A water washing box 402 and an alkali washing box 403 are fixedly arranged on the inner side of the absorption treatment box 401. The interior of the water washing box 402 is filled with water, and the interior of the alkali washing box 403 is filled with alkali solution. The water washing box 402 and the alkali washing box 403 are connected through an air guide connecting pipe 404. The two ends of the air guide connecting pipe 404 are respectively plugged into the interior of the water washing box 402 and the alkali washing box 403. The air outlet conveying pipe 307 passes through the partition frame 301 and the absorption treatment box 401 and is plugged into the interior of the water washing box 402. The air collecting seat 310 is connected with the water washing box 402 through the air outlet conveying pipe 307. The air outlet conveying pipe 307 can discharge the air inside the isolation tank 306 after detection through the air collecting seat 310 and input it into the inner side of the water washing box 402. Specifically, the air outlet conveying pipe 307 is inserted into the water body to ensure that the air can enter the water body to exert the water washing effect of the water washing box 402. One end of the air guide connecting pipe 404 is placed in the empty space above the water body in the water washing box 402 to receive the gas that has been washed with water. Similarly, the other end of the air guide connecting pipe 404 is inserted into the alkaline liquid to ensure that the gas can enter the alkaline liquid to exert the alkaline washing effect of the alkaline washing box 403. The air can be washed with water and alkaline washed in turn, and harmful gases such as sulfur hexafluoride in the distribution room can be actively reduced, thereby improving the working safety and efficiency of the distribution room system, and effectively removing sulfur hexafluoride, sulfur tetrafluoride, sulfur difluoride and sulfenyltetrafluorosulfoxide and other components in the air in the distribution room to realize the operation of air circulation purification.

[0060] Furthermore, the exhaust port is arranged at the upper end of the alkaline washing box 403, and the absorption purification mechanism 4 also includes an exhaust pipe 405 and a neutralization box 406. The alkaline washing box 403 and the neutralization box 406 are connected through the exhaust pipe 405. A filter cotton ball is arranged inside the neutralization box 406, and an acidic solution adheres to the inside of the filter cotton ball. When the gas is discharged through the neutralization box 406, it can be neutralized, thereby improving the safety of the environment and the air.

[0061] A detection method of a gas detection device provided by the present invention is applied to the above-mentioned gas detection device, comprising the following steps:

[0062] S1. Place the gas detection device in the power distribution room and turn on the power supply; when detecting the target gas concentration in the power distribution room, start the electric push rod 205, so that the electric push rod 205 drives the blocking plate 203 to separate from the air inlet box 201 under the support of the air inlet box 201, and an air pump is provided in the middle of the air inlet conveying pipe 303 and the air outlet conveying pipe 307, so that the air in the power distribution room can be input into the air inlet box 201 through the air pump and filtered through the filter cotton plate 206 and the filter mesh plate 207;

[0063] S2, input the filtered air into one of the isolation tanks 306 through the air inlet conveying pipe 303, and at the same time, the air trapped in one of the isolation tanks 306 can be discharged through the air outlet conveying pipe 307, so as to facilitate the renewal and replacement of the air inside the isolation tank 306; start the transmission motor 309, so that the transmission motor 309 drives the rotating adjustment seat 305 and the isolation tank 306 to rotate clockwise between the first sealing plate 302 and the second sealing plate 304 through the transmission frame 308 under the support of the second sealing plate 304, and then the air inside the multiple isolation tanks 306 is renewed in turn;

[0064] S3. The inner space of the isolation tank 306 is a fixed value, so the air inside the isolation tank 306 is in a quantitative state. The small infrared spectrometer 311 uses infrared light to pass through the air in the isolation tank 306 and absorb the spectrum generated by the target gas, and accurately measures the target gas content of the quantitative air in the isolation tank 306;

[0065] S4, the gas collecting seat 310 is connected with two of the isolation tanks 306, so that the gas outlet conveying pipe 307 discharges the air inside the isolation tank 306 after detection through the gas collecting seat 310 and inputs it into the water washing box 402 and the alkali washing box 403 in turn, and the air is washed with water and alkali washed in turn, purified in the absorption treatment box 401, and then input into the neutralization box 406 through the exhaust port and the exhaust pipe 405, so that the gas can be neutralized when it is discharged through the neutralization box 406, so as to avoid affecting the breathing health of personnel after the air is purified by alkali solution.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A gas detection device, characterized in that: The gas detection device is placed in the power distribution room and is used to detect the target gas concentration in the power distribution room. The gas detection device includes: An air intake filter mechanism (2), the air intake filter mechanism (2) comprising an air intake box (201), an electric push rod (205) being fixedly arranged on one side of the upper end of the air intake box (201), an air intake port being opened on the other side of the upper end of the air intake box (201), a blocking plate (203) being fixedly arranged on the output end of the electric push rod (205), and the electric push rod (205) being capable of controlling the blocking plate (203) to selectively block the air intake port; a positioning mounting frame (202) being fixedly arranged on the front end surface of the air intake box (201), a supporting frame (208) being fixedly arranged on the rear end surface of the positioning mounting frame (202), the height of the supporting frame (208) being lower than the air intake port, a filter element being fixedly arranged on the upper end surface of the supporting frame (208), and the filter element being embedded in the air intake box (201); A quantitative detection mechanism (3), the quantitative detection mechanism (3) comprising a partition frame (301), a first sealing plate (302) being fixedly provided at the front end of the partition frame (301), a second sealing plate (304) being fixedly provided at the rear end of the partition frame (301), a rotating adjustment seat (305) being rotatably connected between the first sealing plate (302) and the second sealing plate (304), and a plurality of isolation tanks (306) being provided in an internal annular array of the rotating adjustment seat (305); One end of the air intake pipe (303) is installed on the front end surface of the first sealing plate (302), and the other end of the air intake pipe (303) is arranged at the lower end of the air intake box (201); the air intake box (201) and the rotating adjustment seat (305) are connected through the air intake pipe (303); the air intake pipe (303) and the rotating adjustment seat (305) are in close contact with each other, and the plurality of isolation tanks (306) are connected to the air intake pipe (303) in sequence; A transmission frame (308) is fixedly arranged in the middle of the rotation adjustment seat (305); a transmission motor (309), a small infrared spectrometer (311) and a gas collecting seat (310) are fixedly arranged at intervals on the rear end surface of the second sealing plate (304); the small infrared spectrometer (311) and the gas collecting seat (310) both penetrate the second sealing plate (304) and are in close contact with the rotation adjustment seat (305); the output end of the transmission motor (309) penetrates the second sealing plate (304) and is in close contact with the transmission frame (310). 08), the output end of the transmission motor (309) can control the rotation of the rotation adjustment seat (305) through the transmission frame (308), so that the isolation tank (306) that has been docked with the air inlet pipe (303) is docked with the small infrared spectrometer (311) in sequence, and the isolation tank (306) that has been docked with the small infrared spectrometer (311) is docked with the gas collecting seat (310) in sequence; the rear end surface of the gas collecting seat (310) is fixedly provided with an air outlet pipe (307); The absorption purification mechanism (4) comprises an absorption treatment box (401), the gas outlet conveying pipe (307) can extend into the absorption treatment box (401), and an exhaust port is provided at the top of the absorption treatment box (401).

2. The gas detection device according to claim 1, characterized in that: The gas detection device further comprises a protection display mechanism (1), wherein the protection display mechanism (1) comprises a protection installation box (101), wherein the air intake filtering mechanism (2), the quantitative detection mechanism (3) and the absorption purification mechanism (4) are all placed in the protection installation box (101), wherein the air intake box (201), the partition frame (301) and the absorption treatment box (401) are all fixedly connected to the protection installation box (101), wherein one side of the air intake box (201) is fitted with the inner wall of the protection installation box (101), and the other side of the air intake box (201) is fitted and fixed with the partition frame (301), and the partition frame (301) is located above the absorption treatment box (401); The front end surface of the protective installation box (101) is rotatably connected to a box door (102), an operation panel (103) is fixedly arranged on the outer side of the box door (102), a display screen is fixedly arranged on the front end surface of the operation panel (103), a battery pack (105) is fixedly arranged at the bottom of the protective installation box (101), and the operation panel (103) is electrically connected to the battery pack (105).

3. The gas detection device according to claim 2, characterized in that: An alarm light (104) is fixedly mounted on the upper end of the protective installation box (101). The alarm light (104) is electrically connected to the battery pack (105). The alarm light (104) can detect and determine whether the gas discharged by the absorption and purification mechanism (4) is safe.

4. The gas detection device according to claim 2, characterized in that: The protective installation box (101) is provided with an air intake grille at a position corresponding to the air intake port, a sealing strip is provided between the side of the air intake grille and the sealing plate (203), and the four end corners of the sealing plate (203) are connected to the air intake box (201) via four supporting springs (204).

5. The gas detection device according to claim 1, characterized in that: The positioning mounting frame (202) is fixedly provided with a plurality of support frames (208) in the vertical direction, and the filter element is divided into a filter cotton plate (206) and a filter mesh plate (207), wherein the filter cotton plates (206) are fixedly provided on the upper end surfaces of two of the support frames (208), and the filter mesh plate (207) is fixedly provided on the upper end surfaces of the remaining support frames (208).

6. The gas detection device according to claim 1, characterized in that: A water washing box (402) and an alkali washing box (403) are fixedly arranged on the inner side of the absorption treatment box (401); the water washing box (402) and the alkali washing box (403) are connected via an air guide connecting pipe (404); the gas collecting seat (310) and the water washing box (402) are connected via the air outlet conveying pipe (307); and the exhaust port is arranged at the upper end of the alkali washing box (403).

7. The gas detection device according to claim 6, characterized in that: The absorption purification mechanism (4) further comprises an exhaust pipe (405) and a neutralization box (406); the exhaust pipe (405) is connected to the exhaust port; the alkali cleaning box (403) and the neutralization box (406) are connected through the exhaust pipe (405); a filter cotton ball is arranged inside the neutralization box (406); an acidic solution is adhered to the inside of the filter cotton ball.

8. The gas detection device according to claim 1, characterized in that: The gas collecting seat (310) can be docked with two adjacent isolation tanks (306) at the same time.

9. A detection method for a gas detection device, characterized in that: Applied to the gas detection device according to any one of claims 1 to 8, the detection method of the gas detection device comprises the following steps: S1. The gas detection device is placed in the power distribution room and the power supply is turned on; when the target gas concentration in the power distribution room is detected, the electric push rod (205) is started, so that the electric push rod (205) drives the blocking plate (203) to separate from the air intake box (201) under the support of the air intake box (201), and an air pump is provided in the middle of the air intake pipe (303) and the air outlet pipe (307), so that the air in the power distribution room can be input into the air intake box (201) through the air pump and filtered through the filter element; S2, inputting the filtered air into one of the isolation tanks (306) through the air inlet conveying pipe (303), and at the same time, being able to discharge the air trapped in one of the isolation tanks (306) through the air outlet conveying pipe (307); starting the transmission motor (309), so that the transmission motor (309) drives the rotating adjustment seat (305) and the isolation tank (306) to rotate between the first sealing plate (302) and the second sealing plate (304) through the transmission frame (308) under the support of the second sealing plate (304), and the air inside the multiple isolation tanks (306) is updated in turn; S3, the isolation tank (306) has a fixed volume, and the small infrared spectrometer (311) uses infrared light to pass through the air in the isolation tank (306) and absorb the spectrum generated by the target gas, so as to accurately measure the target gas content in the air in the isolation tank (306); S4, the air outlet conveying pipe (307) discharges the air inside the isolation tank (306) after detection through the air collecting seat (310) and inputs it into the absorption treatment box (401) for purification, and then discharges it through the exhaust port.

10. The power distribution room system is characterized by: It comprises the gas detection device as described in any one of claims 1 to 8, and also comprises a distribution room and a monitoring unit, the distribution room comprises an incoming line cabinet, a metering cabinet, a PT cabinet, an outgoing line cabinet, a communication cabinet and an isolation cabinet; the monitoring unit comprises an image monitoring module and a line monitoring module, the image monitoring module comprises a camera, a signal transmission line, a signal processing component and an image display; the line monitoring module comprises a transformer, a current sensor and a voltage sensor, the transformer converts the high voltage electricity of the distribution room into low voltage electricity for monitoring via the current sensor and the voltage sensor.

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