A SF6 gas leakage monitoring and early warning device

Abstract

The present invention relates to the field of gas leakage monitoring, and in particular to an SF6 gas leakage monitoring and early warning device, comprising a gas transmitter and a detection host, wherein a plurality of the gas transmitters are provided, and the plurality of the gas transmitters are installed on walls at different positions indoors by means of a plurality of bolts; the gas transmitter comprises an exhaust component and a plurality of air supply components, and the exhaust component is connected to the air supply component; the present invention enables detection personnel to point out the approximate location of a leakage source through the mutual cooperation of the gas transmitter and the detection host, and when the detection personnel enter the room, the search range can be quickly narrowed, the leakage source can be quickly located, the search time can be greatly reduced, the efficiency of maintenance and repair can be greatly improved, and the safety of the indoor environment can be effectively guaranteed, so as to solve the problem in the prior art that detection personnel cannot know the approximate location of the leakage source before entering the room, and subsequent personnel entering the room find it difficult to quickly find the leakage source, thus affecting the efficiency of maintenance and repair.

Description

Technical Field

[0001] The present invention relates to the field of gas leakage monitoring, and in particular to an SF6 gas leakage monitoring and early warning device. Background Art

[0002] The air tightness detection device with application number CN201811075614.0 includes a machine base, a flow channel module installed on the machine base, an air intake module, a detection module and a data collection mechanism. The air intake module includes an air intake flow channel and an air intake valve, and the air intake valve is installed in the air intake flow channel; the detection module includes a first detection plug capable of detecting air pressure and a first detection flow channel arranged in the flow channel module, one end of the first detection flow channel is connected to the air intake flow channel, and the other end of the first detection flow channel can be sealed and connected to the cavity of the workpiece to be tested; the first detection plug is installed on one end of the first detection flow channel close to the workpiece to be tested, and the first detection plug can be located in the cavity of the workpiece to be tested; a processor is provided in the data collection mechanism, and the processor is connected to the first detection plug signal, and the air intake valve is connected to the processor signal. This solution can record the corresponding detection data during the process of air tightness detection of the workpiece.

[0003] In the prior art including the above-mentioned patent, the existing collector has a small collection range when collecting gas. Since the density of SF6 gas is greater than that of air, it will accumulate on the indoor surface after leakage. The detection personnel cannot know the approximate location of the leakage source before entering the room, and it is difficult for subsequent personnel to quickly find the leakage source after entering the room, which affects the efficiency of maintenance and repair.

[0004] Therefore, it is necessary to invent a SF6 gas leakage monitoring and early warning device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an SF6 gas leakage monitoring and early warning device, which, through the cooperation of a gas transmitter and a detection host, can point out the approximate location of the leakage source to the detection personnel. When the detection personnel enter the room, they can quickly narrow the search range and quickly locate the leakage source, greatly reducing the search time, greatly improving the efficiency of maintenance and repair, and effectively ensuring the safety of the indoor environment, so as to solve the problem in the prior art that the detection personnel cannot know the approximate location of the leakage source before entering the room, and it is difficult for subsequent personnel to quickly find the leakage source after entering the room, which affects the efficiency of maintenance and repair.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A SF6 gas leakage monitoring and early warning device comprises a gas transmitter and a detection host, wherein a plurality of the gas transmitters are provided, and the plurality of the gas transmitters are installed on walls at different positions in the room by means of a plurality of bolts; the gas transmitter comprises an exhaust assembly and a plurality of air supply assemblies, wherein the exhaust assembly is connected to the air supply assembly, and the inner cavities of the plurality of the exhaust assemblies are provided with exhaust fans for exhausting gas; the air supply assembly is provided with two symmetrically arranged telescopic rods, one ends of the two telescopic rods are commonly connected to a limiting assembly, a walking assembly is slidably provided on the limiting assembly, and the walking assembly is connected to the air supply assembly through an elastic hose; the air supply assembly is connected to the detection host through a gas pipeline.

[0007] As a preferred solution of the present invention, the detection host is provided with multiple air inlet ends cooperating with gas transmitters, and the air inlet ends are connected with output ends of multiple gas transmitters through gas pipelines; a warning speaker is provided on one side of the detection host, a display is provided on the side wall of the detection host, a warning light is provided on the top of the detection host, and the detection host is installed on an outdoor wall.

[0008] As a preferred solution of the present invention, the exhaust assembly and one side of the air supply assembly are connected to a mounting plate, and the mounting plate is mounted on the wall by a plurality of bolts; one side of the mounting plate is provided with a stop block that cooperates with the exhaust assembly.

[0009] As a preferred solution of the present invention, the exhaust assembly includes an exhaust fan, an air inlet is opened on one side of the exhaust fan, a grille is provided in the air inlet, an exhaust port is provided on the other side of the exhaust fan, an air duct is connected to the exhaust port, a drive motor is provided in the air duct, and a power output shaft of the drive motor is connected to the exhaust fan.

[0010] As a preferred solution of the present invention, the air supply assembly includes a collector, which is arranged on the side wall of the mounting plate, and is provided with a display screen for display. A rotating rod is rotatably connected to the side wall of the inner cavity of the collector, and two driving gears are symmetrically provided on the rotating rod. One end of the rotating rod is rotatably connected to a protective cover, and a servo motor is provided in the protective cover, and a power output shaft of the servo motor is connected to one end of the rotating rod.

[0011] As a preferred solution of the present invention, the collector and the side wall of the exhaust assembly are both connected with symmetrically arranged exhausters, and one side of the exhauster is provided with a slot that cooperates with the telescopic rod.

[0012] As a preferred solution of the present invention, the walking assembly includes a sliding base and an extension assembly, the sliding base is provided with two through holes that cooperate with the limit assembly, the sliding base is provided with a protective frame, an adjusting motor is provided in the protective frame, the adjusting motor is electrically connected to the detection host, a walking gear is provided on the power output shaft of the adjusting motor, the sliding base is provided with a fixed frame, one side of the fixed frame is clamped with a first collection head, and one side of the fixed frame is provided with a placement groove that cooperates with the extension assembly.

[0013] As a preferred solution of the present invention, the guide rack and the limiting rod are both arranged in an arc shape, and a tooth groove cooperating with the travel gear is provided on the top of the guide rack.

[0014] As a preferred solution of the present invention, the extension assembly includes a mounting sleeve, an extension tube and a second collection head, and the mounting sleeve is threadedly connected to the placement groove.

[0015] As a preferred solution of the present invention, one end of the extension tube is connected to the installation sleeve, and the other end of the extension tube is connected to the second collection head, and one end of the second collection head is flat.

[0016] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: 1. By arranging multiple gas transmitters at different positions in the room, all-round gas delivery can be achieved. With the collection components that can be flexibly adjusted and the extension components that can accurately detect, the approximate location of the leakage source can be pointed out to the detection personnel before entering the room based on the differences and changing trends of gas concentrations in various places. When the detection personnel enter the room, they can quickly narrow the search range and quickly locate the leakage source, greatly reducing the search time, greatly improving the efficiency of maintenance and repair, and effectively ensuring the safety of the indoor environment.

[0017] 2. When the inspector enters the room, he / she holds the extension assembly, and the extension tube can flexibly penetrate into various narrow and hidden spaces, while the flat second collection head can accurately approach the suspected leakage point. This design allows the inspector to quickly locate the specific leakage point based on the approximate location clues of the leakage source obtained in the previous detection without going through a lot of trouble. This greatly shortens the search time and significantly improves the efficiency of maintenance and repair work. While ensuring the safety of the indoor environment, it also reduces manpower and time costs.

[0018] 3. The driving motors in multiple air ducts run synchronously, driving the exhaust fans to rotate at high speed, which can extract indoor gas over a large area and with high intensity in a short time. The powerful exhaust effect can quickly reduce the indoor SF6 gas concentration, quickly improve the indoor air quality, and ensure the safety of people entering the room; the evenly distributed exhaust positions make the indoor gas flow in an orderly manner, improving the efficiency of internal SF6 gas discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 The overall three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3 This is a schematic diagram of the structure of the component detection host of the present invention; Figure 4 The overall three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 6 It is a schematic diagram of the air duct structure of the present invention; Figure 7 It is a schematic diagram of the structure of the component extension assembly of the present invention; Figure 8 It is a schematic diagram of the connection structure between the rotating rod and the driving gear of the present invention; Fig. 9 It is a schematic diagram of the guide rack structure of the present invention; Fig.10 It is a schematic diagram of the indoor and outdoor installation arrangement structure of the present invention.

[0021] Description of reference numerals: 1. Gas transmitter; 111. Exhaust assembly; 112. Air supply assembly; 113. Telescopic rod; 114. Limiting assembly; 141. Guide rack; 142. Limiting rod; 115. Traveling assembly; 2. Detection host; 21. Warning speaker; 22. Warning light; 3. Mounting plate; 31. Stop block; 4. Collector; 41. Display screen; 42. Rotating rod; 43. Driving gear; 44. Protective cover; 5. Exhaust fan; 51. Grille; 52. Air duct; 6. Sliding base; 61. Protective frame; 62. Adjusting motor; 63. Traveling gear; 64. Fixed frame; 7. The first collection head; 8. Extension assembly; 81. Mounting sleeve; 82. Extension tube; 83. Second collection head; 9. Place the slot. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The present invention provides Figure 1-Figure 10 The SF6 gas leakage monitoring and early warning device shown in the figure includes a gas transmitter 1 and a detection host 2. The gas transmitter 1 is provided with multiple gas transmitters, and the multiple gas transmitters 1 are installed on the walls at different positions in the room through multiple bolts; the gas transmitter 1 includes an exhaust component 111 and multiple air supply components 112, the exhaust component 111 is connected to the air supply component 112, and the inner cavity of the multiple exhaust components 111 is provided with an exhaust fan for exhaust; the air supply component 112 is provided with two symmetrically arranged telescopic rods 113, one end of the two telescopic rods 113 is commonly connected to the limit component 114, A walking assembly 115 is slidably provided on the limiting assembly 114, and the walking assembly 115 is connected to the air supply assembly 112 through an elastic hose; the air supply assembly 112 is connected to the detection host 2 through a gas pipeline; multiple gas transmitters 1 are installed at different positions indoors, which can monitor the indoor gas conditions in all directions and improve the comprehensiveness and accuracy of monitoring; the exhaust fan of the exhaust assembly 111 can exhaust gas, and the telescopic rod 113 cooperates with the walking assembly 115 to flexibly adjust the detection position, improve the detection range and adaptability, and is connected to the detection host 2 through a gas pipeline, so as to facilitate timely transmission of detection data.

[0024] Furthermore, the detection host 2 is provided with multiple air inlet ends cooperating with the gas transmitter 1, and the air inlet ends are connected with the output ends of multiple gas transmitters 1 through gas pipelines; a warning speaker 21 is provided on one side of the detection host 2, a display is provided on the side wall of the detection host 2, and a warning light 22 is provided on the top of the detection host 2, and the detection host 2 is installed on an outdoor wall; multiple air inlet ends are connected with the gas transmitter 1 to ensure that the detection host 2 can receive gas data from various locations in a timely manner; the warning speaker 21 and the warning light 22 can promptly issue sound and light warnings when gas leakage is detected to remind outdoor personnel; the display can display the detection data in real time, which is convenient for personnel to view, and is installed on the outdoor wall for easy maintenance and observation.

[0025] Furthermore, one side of the exhaust assembly 111 and the air supply assembly 112 is commonly connected with a mounting plate 3, and the mounting plate 3 is mounted on the wall by multiple bolts; one side of the mounting plate 3 is provided with a blocking block 31 that cooperates with the exhaust assembly 111; the mounting plate 3 is installed on the wall by bolts, so that the exhaust assembly 111 and the air supply assembly 112 are firmly installed; the blocking block 31 cooperates with the exhaust assembly 111 to prevent foreign matter from entering the exhaust assembly 111 and ensure its normal operation.

[0026] Furthermore, the exhaust assembly 111 includes an exhaust fan 5, an air inlet is provided on one side of the exhaust fan 5, a grille 51 is provided in the air inlet, an exhaust port is provided on the other side of the exhaust fan 5, an air duct 52 is plugged into the exhaust port, a drive motor is provided in the air duct 52, a power output shaft of the drive motor is connected to the exhaust fan; the grille 51 can block large particles of impurities from entering the exhaust fan 5 and protect internal components; the drive motor drives the exhaust fan to efficiently exhaust gas, and the air duct 52 facilitates the transportation of the exhausted gas to a designated location.

[0027] Furthermore, the air supply component 112 includes a collector 4, which is arranged on the side wall of the mounting plate 3. The collector 4 is provided with a display screen 41 for display. A rotating rod 42 is rotatably connected to the side wall of the inner cavity of the collector 4. Two driving gears 43 are symmetrically provided on the rotating rod 42. One end of the rotating rod 42 is rotatably connected to a protective cover 44. A servo motor is provided in the protective cover 44, and a power output shaft of the servo motor is connected to one end of the rotating rod 42; the display screen 41 can display the collected data in real time, which is convenient for on-site viewing; the servo motor drives the rotating rod 42 and the driving gear 43 to rotate, which can adjust the detection angle and improve the flexibility of detection. The protective cover 44 can protect the servo motor.

[0028] Furthermore, the collector 4 and the side wall of the exhaust assembly 111 are both connected with symmetrically arranged exhaust devices 5, and a slot cooperating with the telescopic rod 113 is provided on one side of the exhaust device 5; the symmetrically arranged exhaust device 5 can enhance the gas discharge effect; the slot cooperates with the telescopic rod 113, and the telescopic rod 113 can be fixed when not in use so that it can be placed neatly.

[0029] Furthermore, the walking component 115 includes a sliding base 6 and an extension component 8. The sliding base 6 is provided with two through holes that cooperate with the limit component 114. The sliding base 6 is provided with a protective frame 61. An adjusting motor 62 is provided in the protective frame 61. The adjusting motor 62 is electrically connected to the detection host 2. A walking gear 63 is provided on the power output shaft of the adjusting motor 62. The sliding base 6 is provided with a fixed frame 64. A first collection head 7 is clamped on one side of the fixed frame 64. A placement groove 9 that cooperates with the extension component 8 is provided on one side of the fixed frame 64; the adjusting motor 62 drives the walking gear 63, which cooperates with the limit component 114, so that the sliding base 6 can be flexibly moved, which is convenient for the first collection head 7 to detect gases at different positions; the protective frame 61 can protect the adjusting motor 62; the placement groove 9 is convenient for placing the extension component 8.

[0030] Furthermore, the guide rack 141 and the limit rod 142 are both arranged in an arc shape, and the top of the guide rack 141 is provided with a tooth groove that cooperates with the traveling gear 63; the arc-shaped guide rack 141 and the limit rod 142 enable the sliding base 6 to move in an arc shape to expand the detection range; the tooth groove cooperates with the traveling gear 63 to ensure the stability of the movement of the sliding base 6.

[0031] Furthermore, the extension component 8 includes a mounting sleeve 81, an extension tube 82 and a second collection head 83, and the mounting sleeve 81 is threadedly connected to the placement groove 9; the mounting sleeve 81 is threadedly connected to the placement groove 9, which is convenient for installing and disassembling the extension component 8 and convenient for use when needed.

[0032] Furthermore, one end of the extension tube 82 is connected to the installation sleeve 81, and the other end of the extension tube 82 is connected to the second collection head 83, and one end of the second collection head 83 is flat; the extension tube 82 connects the installation sleeve 81 and the second collection head 83, which can extend the detection distance; the flat-shaped second collection head 83 facilitates more accurate detection close to the gas leakage point.

[0033] Working principle: First, in the first step, the detection host 2 is installed on the outdoor wall, and multiple gas transmitters 1 are installed on the wall surface at different positions indoors, and connected through gas pipelines; Start the detection host 2. When SF6 gas leakage occurs indoors, the detection host 2 will suck SF6 gas into the detection host 2 through the gas pipeline for detection. At this time, the warning speaker 21 will make a sound, and the warning light 22 will light up to warn outdoor personnel; The personnel can start the adjusting motor 62 through the electrical connection between the detection host 2 and the adjusting motor 62, and drive the travel gear 63 to rotate through the adjusting motor 62. When the travel gear 63 rotates, it meshes with the guide rack 141, and cooperates with the limiting effect of the limiting rod 142, so that the sliding base 6 moves in an arc on the guide rack 141 and the limiting rod 142. When the movement is paused, the gas is sucked in and transported to the detection host 2 for detection through the first collection head 7. When the detection value is high, the personnel can stop adjusting the moving position of the sliding base 6; the personnel can find the approximate position of the leakage point by observing the direction of the sliding base 6; In addition, in order to determine the internal gas leakage concentration detection at the current stage, the servo motor located in the protective cover 44 can be started, and the servo motor drives the rotating rod 42 and the driving gear 43 to rotate. The driving gear 43 rotates and drives the other end of the telescopic rod 113 engaged with it to swing up and down. During the process, the detection host 2 can display the SF6 gas concentration in real time when the telescopic rod 113 adjusts the angle to determine the height of the internal SF6 gas accumulation on the ground. It can detect any height of the gas to ensure that there is no danger for people to enter. When the wall output end of the air duct 52 is connected to the filtering and collecting equipment, the driving motor in the air duct 52 is started, and the fan blades are driven by the driving motor to rotate, so that the SF6 gas in the room can be discharged to ensure the safety of people entering; the telescopic rod 113 can be extended and retracted to increase the distance between the detection end and the gas, thereby improving the detection accuracy; By lifting the telescopic rod 113, it is possible to detect leakage points at high places. By cooperating with the walking component 115 to move horizontally on the limit component 114, the detection range of indoor leakage points can be increased. When the internal leaked gas is discharged, personnel enter the room and can roughly understand the SF6 gas leakage point through the swing angle of the telescopic rod 113 and the direction of the first collection head 7. The personnel manually install the installation sleeve 81 on the first collection head 7, and accurately find the leakage point by holding the second collection head 83 and cooperating with the early warning of the detection host 2; Compared with traditional search methods, this equipment can shorten the time required to find the source of gas leakage and reduce the difficulty of finding the source of gas leakage.

[0034] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A SF6 gas leakage monitoring and early warning device, characterized in that: The invention comprises a gas transmitter (1) and a detection host (2), wherein a plurality of the gas transmitters (1) are provided, and the plurality of the gas transmitters (1) are installed on walls at different positions in a room by means of a plurality of bolts; the gas transmitter (1) comprises an exhaust assembly (111) and a plurality of air supply assemblies (112), wherein the exhaust assembly (111) is connected to the air supply assembly (112), and an exhaust fan for exhausting air is provided in the inner cavity of the plurality of the exhaust assemblies (111); the air supply assembly (112) is provided with two symmetrically arranged telescopic rods (113), one end of the two telescopic rods (113) is commonly connected to a limit assembly (114), a walking assembly (115) is slidably provided on the limit assembly (114), and the walking assembly (115) is connected to the air supply assembly (112) by means of an elastic hose; the air supply assembly (112) is connected to the detection host (2) by means of a gas pipeline.

2. The SF6 gas leakage monitoring and early warning device according to claim 1 is characterized in that: The detection host (2) is provided with a plurality of air inlet ends cooperating with the gas transmitters (1), and the air inlet ends are connected to the output ends of the plurality of gas transmitters (1) through gas pipelines; a warning speaker (21) is provided on one side of the detection host (2), a display is provided on the side wall of the detection host (2), a warning light (22) is provided on the top of the detection host (2), and the detection host (2) is installed on an outdoor wall.

3. The SF6 gas leakage monitoring and early warning device according to claim 1 is characterized in that: The exhaust assembly (111) and the air supply assembly (112) are connected to a mounting plate (3) on one side, and the mounting plate (3) is mounted on a wall by means of a plurality of bolts; a stopper block (31) cooperating with the exhaust assembly (111) is provided on one side of the mounting plate (3).

4. The SF6 gas leakage monitoring and early warning device according to claim 3 is characterized in that: The exhaust assembly (111) comprises an exhaust device (5), an air inlet is provided on one side of the exhaust device (5), a grille (51) is provided in the air inlet, an exhaust port is provided on the other side of the exhaust device (5), an air duct (52) is plugged into the exhaust port, a drive motor is provided in the air duct (52), and a power output shaft of the drive motor is connected to an exhaust fan.

5. The SF6 gas leakage monitoring and early warning device according to claim 3 is characterized in that: The air supply assembly (112) comprises a collector (4), the collector (4) being arranged on a side wall of the mounting plate (3), the collector (4) being provided with a display screen (41) for displaying information, a rotating rod (42) being rotatably connected to the side wall of the inner cavity of the collector (4), the rotating rod (42) being symmetrically provided with two driving gears (43), one end of the rotating rod (42) being rotatably connected to a protective cover (44), a servo motor being provided inside the protective cover (44), and a power output shaft of the servo motor being connected to one end of the rotating rod (42).

6. The SF6 gas leakage monitoring and early warning device according to claim 5 is characterized in that: The collector (4) and the side wall of the exhaust assembly (111) are both connected with symmetrically arranged exhaust devices (5), and one side of the exhaust device (5) is provided with a slot that cooperates with the telescopic rod (113).

7. The SF6 gas leakage monitoring and early warning device according to claim 1 is characterized in that: The walking assembly (115) comprises a sliding base (6) and an extension assembly (8), the sliding base (6) being provided with two through holes cooperating with the limiting assembly (114), the sliding base (6) being provided with a protection frame (61), an adjusting motor (62) being provided inside the protection frame (61), the adjusting motor (62) being electrically connected to the detection host (2), a walking gear (63) being provided on the power output shaft of the adjusting motor (62), the sliding base (6) being provided with a fixing frame (64), a first collecting head (7) being clamped on one side of the fixing frame (64), and a placement groove (9) cooperating with the extension assembly (8) being provided on one side of the fixing frame (64); the limiting assembly (114) comprising a guide rack (141) and a limiting rod (142), the guide rack (141) and the limiting rod (142) both being arranged in an arc shape, and a tooth groove cooperating with the walking gear (63) being provided on the top of the guide rack (141).

8. The SF6 gas leakage monitoring and early warning device according to claim 7 is characterized in that: The extension assembly (8) comprises a mounting sleeve (81), an extension tube (82) and a second collection head (83); the mounting sleeve (81) is threadedly connected to the inner cavity of the placement groove (9); one end of the extension tube (82) is in communication with the mounting sleeve (81); the other end of the extension tube (82) is in communication with the second collection head (83); one end of the second collection head (83) is arranged in a flat shape.

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