CN212721930U

CN212721930U - SF6 gas leakage monitoring device

Info

Publication number: CN212721930U
Application number: CN202021633639.0U
Authority: CN
Inventors: 薛照辉; 霍佳超
Original assignee: Shanxi Huineng Technology Co ltd
Current assignee: Shanxi Huineng Technology Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2021-03-16
Anticipated expiration: 2030-08-08

Abstract

The utility model discloses a SF6 gas leakage monitoring devices, the on-line screen storage device comprises a base, the base is the rectangle plate, the upper surface one end fixedly connected with of base detects the chamber, the upper surface of base is equipped with the spiral device, the lateral wall that detects the chamber runs through and is equipped with the outlet duct, the internal surface of outlet duct is equipped with the air pump, the utility model discloses a set up the base, set up the bracing piece at the base upper surface, set up the pivot in the one end of bracing piece for the pivot can rotate on the bracing piece, through setting up the connecting rod, link to each other the pivot with detecting the chamber, thereby make the inside cavity of pivot link to each other with detecting the chamber, through setting up the pipe, make the gas that waits to detect inhale by the pipe, through the through-hole entering on. The utility model discloses can stretch into comparatively narrow and small regional inside and detect, increase the application scope of device.

Description

SF6 gas leakage monitoring device

Technical Field

The utility model relates to an alarm system technical field, specific field is a SF6 gas leakage monitoring devices.

Background

The high-voltage SF6 switch equipment is internally filled with SF6 gas, SF6 gas is mainly used as an excellent insulating and arc extinguishing medium in the power industry and successfully applied to the high-voltage switch and the high-voltage switch equipment, and the SF6 gas is almost the only insulating and arc extinguishing medium of a circuit breaker and a GIS in the fields of high voltage, ultrahigh voltage and extra-high voltage. However, during the switching operation, under the action of electric arc, corona, spark discharge, partial discharge, high temperature and other factors, SF6 gas is decomposed, and the decomposition thereof becomes corrosive electrolyte when meeting moisture, and some of the highly toxic decomposition products, such as SF4, S2F2, S2F10, SOF2, HF and SO2, can irritate skin and mucous membranes, and if the inhalation amount is large, cause dizziness, emphysema and even death. The equipment filled with SF6 gas is mostly installed in a room, the air circulation speed is relatively slow, if SF6 gas leaks, the SF6 gas is not easy to be dispersed in the room, and the SF6 gas is colorless and tasteless and is not easy to be detected after leaking. In addition, since the specific gravity of SF6 gas is higher than that of oxygen, the SF6 gas is often deposited in a lower layer space, and local oxygen deficiency is easily caused, so that people are suffocated. Thus, great potential safety hazard is caused to field workers. The conventional detection device is large in size and cannot detect gas leakage in a narrow area, so that an SF6 gas leakage monitoring device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SF6 gas leakage monitoring device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an SF gas leakage monitoring device comprises a base, wherein the base is a rectangular plate, one end of the upper surface of the base is fixedly connected with a detection cavity, the upper surface of the base is provided with a winding device, the winding device comprises a supporting rod, the supporting rod is vertically arranged with the base, one side surface of the supporting rod is fixedly connected with a shaft sleeve, the outer surface of the shaft sleeve is fixedly connected with a first fixing ring, one side surface of the supporting rod is rotatably connected with a rotating shaft, a cavity is arranged at the axis of the rotating shaft, the two ends of the cavity are in an open shape, two ends of the inner side wall of the cavity are respectively provided with an annular chute, the shaft sleeve extends into one end of the cavity, the first fixing ring is positioned in the corresponding annular chute, the other end of the cavity is provided with a connecting rod, and the outer surface of one end of, the one end of connecting rod stretches into the one end of cavity, just the solid fixed ring of second is located the correspondence the inside of annular spout, the other end of connecting rod runs through detect the lateral wall in chamber, just the other end of connecting rod with fixed connection between the lateral wall in chamber detects, the center of connecting rod is equipped with the through-hole, the through-hole will the cavity with detect the chamber intercommunication, the lateral wall of pivot runs through the one end that is equipped with the pipe, the pipe winding is in the pivot on the surface, the lateral wall in chamber that detects runs through and is equipped with the outlet duct, the internal surface of outlet duct is equipped with the air pump.

Preferably, an infrared light source generator, an infrared detector and a double-reflector air pipe which are matched and connected with each other are arranged in the detection cavity.

Preferably, a torsion spring is arranged between the connecting rod and the rotating shaft.

Preferably, the last fixed surface of base is connected with fixing device, fixing device includes the member, member fixed connection be in on the upper surface of base, just the member with the base sets up perpendicularly, the upper end of member is equipped with the sleeve, telescopic inside wall is the toper, telescopic inside wall symmetry is equipped with the spout, the inside wall sliding connection of spout has the slider, the surface difference fixedly connected with fixation clamp of slider, the slider with be equipped with the spring between the spout, the other end of pipe passes two between the fixation clamp.

Preferably, two opposite surfaces of the two fixing clips are respectively provided with an anti-slip groove.

Preferably, the other end of the conduit is fixedly connected with an air tap.

Compared with the prior art, the utility model provides a SF6 gas leakage monitoring device is provided with the pipe, can be so that the gas that waits to detect is inhaled by the pipe and is detected the intracavity portion completion detection via the through-hole on the connecting rod entering, because the pipe can stretch into comparatively narrow and small regional inside and detect, has increased the application scope of device.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention;

fig. 3 is a left side view structural diagram of the fixing device of the present invention;

fig. 4 is a schematic view of the front view cross-sectional structure of the fixing device of the present invention.

In the figure: 1-base, 2-detection cavity, 3-support rod, 4-shaft sleeve, 5-first fixing ring, 6-rotating shaft, 7-cavity, 8-annular chute, 9-connecting rod, 10-second fixing ring, 11-through hole, 12-guide tube, 13-anti-slip groove, 14-rod, 15-sleeve, 16-chute, 17-slide block, 18-fixing clamp, 19-spring, 20-air outlet tube, 21-air pump and 22-air nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an SF6 gas leakage monitoring device comprises a base 1, the base 1 is a rectangular plate, as shown in figure 1, one end of the upper surface of the base 1 is fixedly connected with a detection cavity 2, gas is detected in the detection cavity 2, the upper surface of the base 1 is provided with a winding device, the winding device comprises a support rod 3, the support rod 3 is arranged perpendicular to the base 1, one side surface of the support rod 3 is fixedly connected with a shaft sleeve 4, the outer surface of the shaft sleeve 4 is fixedly connected with a first fixing ring 5, the first fixing ring 5 is coaxially arranged with the shaft sleeve 4, one side surface of the support rod 3 is rotatably connected with a rotating shaft 6, the outer surface of the shaft sleeve 4 is in contact with the inner surface of the rotating shaft 6 and keeps sealed, a cavity 7 is arranged at the axis of the rotating shaft 6, two ends of the cavity 7 are open, two ends of the inner side wall of the cavity 7 are respectively provided with an annular chute 8, the shaft sleeve 4 extends into one end, the other end of cavity 7 is equipped with connecting rod 9, the one end surface of connecting rod 9 is equipped with the solid fixed ring of second 10, the one end of connecting rod 9 stretches into the one end of cavity 7, and the solid fixed ring of second 10 is located the inside of the annular spout 8 that corresponds, the other end of connecting rod 9 runs through the lateral wall that detects chamber 2, and fixed connection between the other end of connecting rod 9 and the lateral wall that detects chamber 2, as shown in fig. 2, connecting rod 9 is the L type, the center of connecting rod 9 is equipped with through-hole 11, through-hole 11 communicates cavity 7 and detection chamber 2, the lateral wall of pivot 6 runs through the one end that is equipped with pipe 12, pipe 12 winding is on the surface at pivot 6, the lateral wall that detects chamber 2 runs through and is equipped with outlet duct 20, the internal surface of outlet duct 20 is equipped with air pump 21, pipe 12 adopts the stereoplasm plastic.

Specifically, an infrared light source generator, an infrared detector and a double-reflector gas pipe which are connected in a matched manner are arranged in the detection cavity 2, the infrared light source generator, the infrared detector and the double-reflector gas pipe are all connected with a controller, the infrared detector sends detection data to a digital-to-analog converter in the controller, the digital-to-analog converter converts an analog signal into a digital signal and sends the digital signal to a numerical comparator, the numerical comparator calls preset data of a data storage device to be compared with the digital signal, if the digital signal is abnormal after comparison, an alarm is sent out by the controller, and the controller can be existing known equipment, such as a computer and the like, which plays a role in controlling and processing data.

Specifically, a torsion spring is arranged between the connecting rod 9 and the rotating shaft 6, when the guide pipe 12 is extended, the torsion spring is rotated, and after the guide pipe 12 is loosened after detection is finished, the rotating shaft 6 is reset under the action of the torsion spring, so that the guide pipe 12 is wound on the surface of the rotating shaft 6 again.

Specifically, as shown in fig. 4, a fixing device is fixedly connected to the upper surface of the base 1, the fixing device includes a rod 14, the rod 14 is fixedly connected to the upper surface of the base 1, the rod 14 is disposed perpendicular to the base 1, a sleeve 15 is disposed at the upper end of the rod 14, the inner side wall of the sleeve 15 is tapered, the diameter of the end close to the rotating shaft 6 is smaller, sliding grooves 16 are symmetrically disposed on the inner side wall of the sleeve 15, sliding blocks 17 are slidably connected to the inner side wall of the sliding grooves 16, fixing clips 18 are respectively fixedly connected to the outer surfaces of the sliding blocks 17, a spring 19 is disposed between the sliding blocks 17 and the sliding grooves 16, the fixing clips 18 are located at the end close to the rotating shaft 6 by the spring 19, the other end of the conduit 12 passes through between the two fixing clips 18, when the conduit 12 is pulled, the fixing clips 18 move in a direction away, the pivot 6 drives pipe 12 reverse motion under the effect of torsional spring, and two fixation clamps 18 are reverse motion also under the frictional force effect to make the distance between two fixation clamps 18 shorten, and then press from both sides tight pipe 12, thereby fix pipe 12, for convenient with pipe 12 resets, can set up devices such as push rod at the surface of fixation clamp 18, make steerable fixation clamp 18 remove towards the direction of keeping away from pivot 6.

Specifically, the two opposite surfaces of the two fixing clips 18 are respectively provided with anti-slip grooves 13 to increase friction force.

Specifically, an air nozzle 22 is fixedly connected to the other end of the catheter 12 to facilitate controlling the catheter 12 to extend into the target area.

The working principle is as follows: the utility model discloses during the use, pulling pipe 12, make pivot 6 rotate, stretch into the one end of pipe 12 and wait to detect the regional back of treating, open air pump 21, air pump 21 will detect the gaseous of2 insides in chamber and take out, outside gas then gets into the inside of cavity 7 by pipe 12, then get into the inside that detects 2 in chamber by through-hole 11, detect 2 inside infrared detector in chamber and send the digital analog converter in the controller with the survey data, digital analog converter converts analog signal to digital signal and sends digital signal to numerical value comparator, numerical value comparator calls data memory's the data of predetermineeing and contrasts with this digital signal, if digital signal is unusual after the contrast, then send out the police dispatch newspaper by the controller.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An SF6 gas leakage monitoring device, includes base (1), its characterized in that: the base (1) is a rectangular plate, one end of the upper surface of the base (1) is fixedly connected with a detection cavity (2), the upper surface of the base (1) is provided with a winding device, the winding device comprises a support rod (3), the support rod (3) is perpendicular to the base (1), one side surface of the support rod (3) is fixedly connected with a shaft sleeve (4), the outer surface of the shaft sleeve (4) is fixedly connected with a first fixing ring (5), one side surface of the support rod (3) is rotatably connected with a rotating shaft (6), a cavity (7) is arranged at the axis of the rotating shaft (6), both ends of the cavity (7) are open, both ends of the inner side wall of the cavity (7) are respectively provided with an annular chute (8), the shaft sleeve (4) extends into one end of the cavity (7), the first fixing ring (5) is positioned inside the corresponding annular chute (8), the other end of the cavity (, the one end surface of connecting rod (9) is equipped with the solid fixed ring of second (10), the one end of connecting rod (9) stretches into the one end of cavity (7), the solid fixed ring of second (10) is located the inside of the annular spout (8) that corresponds, the other end of connecting rod (9) runs through the lateral wall that detects chamber (2), and fixed connection between the other end of connecting rod (9) and the lateral wall that detects chamber (2), the center of connecting rod (9) is equipped with through-hole (11), through-hole (11) are with cavity (7) and detection chamber (2) intercommunication, the lateral wall of pivot (6) runs through the one end that is equipped with pipe (12), pipe (12) winding is on the surface of pivot (6), the lateral wall that detects chamber (2) runs through and is equipped with outlet duct (20), the internal surface of outlet duct (20) is equipped with.

2. An SF6 gas leak monitoring device according to claim 1, wherein: an infrared light source generator, an infrared detector and a double-reflector air pipe which are mutually matched and connected are arranged in the detection cavity (2).

3. An SF6 gas leak monitoring device according to claim 2, wherein: a torsion spring is arranged between the connecting rod (9) and the rotating shaft (6).

4. An SF6 gas leak monitoring device as claimed in claim 3, wherein: the last fixed surface of base (1) is connected with fixing device, fixing device includes member (14), member (14) fixed connection is on the upper surface of base (1), and member (14) and base (1) perpendicular setting, the upper end of member (14) is equipped with sleeve (15), the inside wall of sleeve (15) is the toper, the inside wall symmetry of sleeve (15) is equipped with spout (16), the inside wall sliding connection of spout (16) has slider (17), the surface difference fixedly connected with fixation clamp (18) of slider (17), be equipped with spring (19) between slider (17) and spout (16), the other end of pipe (12) passes between two fixation clamps (18).

5. An SF6 gas leak monitoring device as claimed in claim 4, wherein: two opposite surfaces of the two fixing clamps (18) are respectively provided with an anti-skidding groove (13).

6. An SF6 gas leak monitoring device according to claim 1, wherein: the other end of the conduit (12) is fixedly connected with an air tap (22).