CN108332913A - The infrared leak detection auxiliary tools of SF6 - Google Patents

Abstract

The invention relates to an auxiliary tool for SF6 infrared leak detection, which comprises a base, a fan is installed in the middle of the base, and air outlets are respectively arranged on both sides of the fan, the bottom of the base is connected with a handle, and the top of the base is hinged with two The air supply pipe can be combined into one; the air outlets on both sides are respectively connected to the bottom of the two air supply pipes through flexible air outlet pipes; the two ends of the air supply pipe are closed, and the mating surface of the two air supply pipes is a plane , there are a plurality of air supply holes corresponding to the two mating surfaces, and the two corresponding air supply holes are connected when the two pipes are combined; the top of one of the air supply pipes is connected with a metal shaped hose, and the metal shaped The top of the hose is provided with a single air outlet. The invention solves the problem of no wind in SF6 leakage detection, and has simple overall structure, convenient operation and good detection effect.

Description

SF6 infrared leak detection auxiliary tool

technical field

The invention relates to the field of SF6 equipment leak detection, in particular to an auxiliary tool for SF6 infrared leak detection.

Background technique

SF6 (sulfur hexafluoride) is an insulating medium, its dielectric strength is 2.33 times that of air, and its arc extinguishing ability is 100 times that of air, so SF6 is generally used as an insulation and arc extinguishing medium for high-voltage electrical equipment.

For SF6 equipment, the leakage of SF6 gas will seriously affect the operation safety of the equipment. Therefore, regular testing of SF6 equipment is required. SF6 leak detection generally uses SF6 infrared leak detector. In actual detection, SF6 infrared leak detection requires a breeze in the environment and a suitable wind direction. If there is no breeze in a suitable wind direction, the smoke generated by SF6 leakage cannot be seen under the SF6 infrared leak detector. gas. The current GIS combined equipment is arranged indoors, and the air circulation is not smooth, so it is difficult to accurately detect SF6 leakage.

Contents of the invention

The technical problem to be solved by the present invention is to provide a good auxiliary tool that can provide point-shaped air supply or surface-shaped air supply in SF6 gas infrared leak detection, and has simple structure, convenient operation and good detection effect.

In order to solve the above technical problems, the SF6 infrared leak detection auxiliary tool of the present invention comprises a base, and its structural feature is that a fan is installed in the middle of the base and air outlets are respectively arranged on both sides of the fan, and the bottom of the base is connected with a handle. The top of the base is hinged with two air supply pipes that can be combined into one; the air outlets on both sides are respectively connected to the bottom of the two air supply pipes through flexible air outlet pipes; the two ends of the air supply pipe are closed, and the two air supply pipes The mating surfaces of the air ducts are planes, and a plurality of air supply holes are correspondingly opened on the two mating surfaces, and the corresponding two air supply holes are connected when the two ducts are combined; the top of one of the air ducts is connected to There is a metal shaping hose, and the top of the metal shaping hose is provided with a single air outlet.

With the above-mentioned structure, when the two air supply pipes are combined, the air supply from the fan is collected into the single air outlet, so as to blow the specific detection part; when the two air supply pipes are opened, the air supply from the fan is respectively from the two pipes Blow out to each air supply hole on the joint surface, so as to carry out surface air blowing on the specific detection part.

Regarding the specific structure of each air outlet of the fan, an air chamber is provided in the middle of the base, the fan is installed in the air chamber and an air inlet of the fan is opened on the air chamber, and two air outlets are respectively provided on two sides of the air chamber.

For the power supply of the fan, this case provides two structures: one: the handle is connected to the bottom of the air cavity, a storage battery for powering the fan is installed inside the handle, and a fan controller and a fan control switch are installed on the handle. Its two: the auxiliary tool also includes a knapsack power box, a battery is installed in the knapsack power box, the battery is electrically connected with the fan through a wire, and a fan controller and a fan control switch are installed on the handle.

In order to adjust the wind power of the single air outlet according to the distance, a distance sensor is installed on the top of the metal shaping hose close to the single air outlet, and the signal output end of the distance sensor is electrically connected to the fan controller.

In order to facilitate the fixing and installation of the device and save manpower, the bottom end of the handle is detachably mounted with an elastic clip through an annular hoop.

For the specific structure of the two air supply pipes, the section of the air supply pipe is semicircular, and the two air supply pipes are combined to form a circular pipe; A plurality of magnets are arranged, and the magnets are embedded on the mating surface.

In order to ensure the sealing performance of the two air supply pipes when they are combined, sealing strips are provided on the circumferences of the mating surfaces of the two air supply pipes, and a sealed space is formed between the two mating surfaces after the two sealing strips are mated.

In order to increase the wind force when blowing on the surface, a plurality of air deflectors corresponding to each air supply hole are installed inside the air supply pipe.

Mounting grooves are arranged on the tops of the two bases, the bottom ends of the two air supply pipes are connected with positioning blocks, and the two positioning blocks are respectively connected in the mounting grooves through pin rotation, and the bottom ends of the two positioning blocks are correspondingly provided with limiting platforms.

Based on the above structure, the present invention has the following advantages and effects:

1) Through the opening and closing structure of the two air supply pipes, the switching between point blowing and surface blowing is realized, which not only solves the problem of no wind in leak detection, but also allows the inspectors to flexibly choose the blowing type according to the specific detection position, making the detection It is more flexible and convenient and ensures the accuracy of detection;

2) The whole device has a simple structure and is easy to carry. In specific use, one person can carry the detector for detection, while the other person holds the handle of the device and operates the device to adjust the air supply angle; when the manpower is insufficient, the whole device can be clamped by the spring clip Hold it on the device, adjust the blowing angle, and then carry out the inspection with the leak detector, so that one person can complete the inspection independently;

3) When performing spot blowing, use the distance sensor to detect the distance between the single blowing outlet and the equipment in real time. When the distance is far away, the control wind force will increase, and when the distance is short, the control wind force will decrease, so that it can be more flexible and convenient. Control the wind to ensure a better blowing effect;

4) The combination of the two air supply pipes adopts magnetic attraction, the structure is simple and easy to operate, and at the same time, a ring-shaped sealing strip is set to ensure the sealing effect during the combination, avoiding air leakage, and the structure is more stable and reliable;

5) The air deflector is used to change the wind direction to the air supply hole, which ensures the air supply strength and strength of the air supply hole;

6) Separately set the positioning block to hinge the air supply pipe, and set the limit platform on the positioning block to prevent the two air supply pipes from overturning. The structure is simple, stable and easy to operate.

To sum up, the present invention solves the problem of no wind in SF6 leakage detection, and has simple overall structure, convenient operation and good detection effect.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is the structural representation of the present invention when two air supply pipes are combined;

Fig. 2 is the structural representation of the present invention when two air supply pipes are opened;

Fig. 3 is a schematic diagram of a cross-sectional enlarged structure of part A of Fig. 1;

Fig. 4 is a schematic cross-sectional structural diagram along the direction B-B in Fig. 3 .

Detailed ways

With reference to accompanying drawing, SF6 infrared leak detection auxiliary tool of the present invention comprises base, and fan 1 and both sides of fan 1 are respectively provided with air outlet 2 in the middle part of base, and the bottom of base is connected with handle 3, and the top of base There are two air supply pipes 4 that can be integrated into one hinge; the air outlets 2 on both sides communicate with the bottoms of the two air supply pipes 4 through flexible air outlet pipes 5; the two ends of the air supply pipe 4 are closed, and the two The mating surface of the air supply pipe 4 is a plane, and a plurality of air supply holes 6 are correspondingly opened on the two mating surfaces, and the corresponding two air supply holes 6 are connected when the two pipes are combined; The top of the pipe 4 is connected with a metal shaping hose 7, and the top of the metal shaping hose 7 is provided with a single air outlet 8.

In the above structure, when the two air supply pipes 4 are combined, the air supply from the fan 1 is collected to the single air outlet 8, so as to blow the specific detection part; when the two air supply pipes 4 are opened, the air supply from the fan 1 The wind is blown out from each air supply hole 6 on the joint surface of the two pipes respectively, so as to carry out surface blowing on the specific detection part.

A handle is provided for easy holding. When there are insufficient hands, the whole device is fixed on the equipment for convenience.

With reference to the accompanying drawings, for the setting of each air outlet of the fan 1, an air chamber 9 is provided in the middle of the base, the fan 1 is installed in the air chamber 9 and the fan air inlet 10 is opened on the air chamber, and two air outlets 2 are respectively opened in the air chamber. 9 on both sides.

For the power supply of the fan, there are two structures in this case, one, not shown in the figure, the handle 3 is connected to the bottom of the air cavity 9, a storage battery for powering the fan 1 is installed inside the handle 3, and a fan controller is installed on the handle And fan control switch 11. Its two, as shown in the figure, the auxiliary tool also includes a knapsack power box 12, a battery is installed in the knapsack power box 12, the battery is electrically connected with the fan 1 through a wire, and a fan controller and a fan control switch 11 are installed on the handle 3 . Wherein, the fan control switch 11 includes a power switch and a wind speed switch.

Referring to the accompanying drawings, a distance sensor 13 is installed near the position of the single air outlet 8 on the top of the metal sizing hose 7, and the signal output end of the distance sensor 13 is electrically connected to the fan controller.

Referring to the accompanying drawings, for the specific structure of the air supply pipe, the section of the air supply pipe 4 is a semicircle, and two air supply pipes 4 are combined to form a circular pipe; A plurality of magnets 15 are arranged correspondingly, and the magnets 15 are embedded on the mating surfaces. Sealing strips 16 are arranged around the circumference of the mating surfaces of the two air supply pipes 4, and a sealed space is formed between the two mating surfaces after the two sealing strips 16 are mated. A plurality of air deflectors 17 corresponding to each air supply hole 6 are installed inside the air supply pipe 4 .

With reference to the accompanying drawings, for the specific hinged structure of the two air supply pipes, the top of the base is provided with a mounting groove, and the bottom ends of the two air supply pipes 4 are connected with a positioning block 18, and the two positioning blocks 18 are respectively connected by rotation of the pin shaft. In the installation groove, the bottom ends of the two positioning blocks 18 are correspondingly provided with limiting platforms.

In combination with the above specific structure, the present invention has the following advantages and effects:

1) Through the opening and closing structure of the two air supply pipes, the switching between point blowing and surface blowing is realized, which not only solves the problem of no wind in leak detection, but also allows the inspectors to flexibly choose the blowing type according to the specific detection position, making the detection It is more flexible and convenient and ensures the accuracy of detection;

2) The whole device has a simple structure and is easy to carry. In specific use, one person can carry the detector for detection, while the other person holds the handle of the device and operates the device to adjust the air supply angle; when the manpower is insufficient, the whole device can be clamped by the spring clip Hold it on the device, adjust the blowing angle, and then carry out the inspection with the leak detector, so that one person can complete the inspection independently;

3) When performing spot blowing, use the distance sensor to detect the distance between the single blowing outlet and the equipment in real time. When the distance is far away, the control wind force will increase, and when the distance is short, the control wind force will decrease, so that it can be more flexible and convenient. Control the wind to ensure a better blowing effect;

4) The combination of the two air supply pipes adopts magnetic attraction, the structure is simple and easy to operate, and at the same time, a ring-shaped sealing strip is set to ensure the sealing effect during the combination, avoiding air leakage, and the structure is more stable and reliable;

5) The air deflector is used to change the wind direction to the air supply hole, which ensures the air supply strength and strength of the air supply hole;

6) Separately set the positioning block to hinge the air supply pipe, and set the limit platform on the positioning block to prevent the two air supply pipes from overturning. The structure is simple, stable and easy to operate.

To sum up, the present invention is not limited to the above specific embodiments. Those skilled in the art can make several changes or modifications without departing from the spirit and scope of the present invention. The above changes or modifications all fall within the protection scope of the present invention.

Claims (10)

1. a kind of infrared leak detection auxiliary tools of SF6, including pedestal, it is characterized in that being equipped with wind turbine in the middle part of the pedestal（1）And Air outlet is respectively set in the both sides of wind turbine（2）, the bottom of pedestal is connected with handle（3）, being hinged with two at the top of pedestal can be right The ajutage being integrated（4）；The air outlet of both sides（2）Pass through flexible discharge pipe respectively（5）With two ajutages（4）Bottom Connection；Ajutage（4）Closed at both ends, two ajutages（4）Involutory surface be plane, correspondence opens up respectively on two involutory surfaces There are multiple air pushing holes（6）And corresponding two air pushing holes in two pipe pairings（6）Connection；A wherein ajutage（4）Top End is connected with metal stereotypes hoses（7）, metal stereotypes hoses（7）The single air outlet of top setting（8）.

2. the infrared leak detection auxiliary tools of SF6 as described in claim 1, it is characterized in that wind chamber is arranged in the middle part of the pedestal（9）, Wind turbine（1）Mounted on wind chamber（9）Air inlet is offered on interior and wind chamber（10）, two air outlets（2）It is opened in wind respectively Chamber（9）Two sides.

3. the infrared leak detection auxiliary tools of SF6 as claimed in claim 2, it is characterized in that the handle（3）It is connected to wind chamber（9）'s Bottom, handle（3）Inside is equipped with for fan（1）The accumulator of power supply is equipped with controller of fan and wind turbine on handle Control switch（11）.

4. the infrared leak detection auxiliary tools of SF6 as claimed in claim 2, it is characterized in that the auxiliary tool further includes backpack power supply Case（12）, backpack power supply box（12）Accumulator is inside installed, accumulator passes through conducting wire and wind turbine（1）Electrical connection, handle（3）On Controller of fan and air-blower control switch are installed（11）.

5. the infrared leak detection auxiliary tools of SF6 as described in claim 3 or 4, it is characterized in that the metal stereotypes hoses（7）Top End is close to single air outlet（8）Position at range sensor is installed（13）, range sensor（13）Signal output end with Controller of fan is electrically connected.

6. the infrared leak detection auxiliary tools of SF6 as described in claim 1, it is characterized in that the handle（3）Bottom end pass through annular Cuff it is detachable elastic clip is installed（14）.

7. the infrared leak detection auxiliary tools of SF6 as described in claim 1, it is characterized in that the ajutage（4）Section be semicircle Shape, two ajutages（4）Round tube is formed after pairing；Two ajutages（4）Involutory surface on respectively two-by-two corresponding setting it is more Block magnet（15）, magnet（15）It is inlaid on involutory surface.

8. the infrared leak detection auxiliary tools of SF6 as claimed in claim 6, it is characterized in that two ajutages（4）The border of involutory surface It is equipped with sealing strip（16）, two sealing strips（16）After pairing sealing space is formed between two involutory surfaces.

9. the infrared leak detection auxiliary tools of SF6 as claimed in claim 6, it is characterized in that ajutage（4）Inside be equipped with it is multiple With each air pushing hole（6）One-to-one wind deflector（17）.

10. the infrared leak detection auxiliary tools of SF6 as described in claim 1, it is characterized in that the top setting mounting groove of pedestal, two Ajutage（4）Bottom end be connected with locating piece（18）, two locating pieces（18）It is rotatably connected in mounting groove by axis pin respectively, Two locating pieces（18）Bottom end be correspondingly arranged on limiting stand.